Model

Use cases · Individuals

Students and universities: 20 ways to use Ora

Finance classes and student funds learning indicators, events and forecasts on real data. Each example is a complete, runnable request with the real answers it returned (26 requests, captured 2026-10-31), what they mean and, where it fits, the action it would send.

Run withAnswers were captured on ora-fin-0.1.1. Another model changes the request JSON and the Playground link; run it there to see its answers.

Rule functions and facts used by this player (63)

sma 6 ref 3 ema 2 rsi 2 atr 2 log 2 offset 2 bblower 2 swinglow 2 avg 2 wma 1 doji 1 engulfing_bull 1 hammer 1 inside_bar 1 marubozu 1 outside_bar 1 beat_eps_last 1 beat_revenue_last 1 eps_growth_yoy 1 eps_surprise_pct 1 div_count_ttm 1 div_yield_ttm 1 raised_last 1 years_of_growth 1 days_since_split 1 days_to_split 1 last_split_ratio 1 reverse_split_last 1 splits_5y 1 atr_pct 1 sqrt 1 std 1 tr 1 bbmid 1 bbupper 1 macd 1 macdhist 1 macdsignal 1 swinghigh 1 adx 1 cci 1 diminus 1 diplus 1 stochd 1 stochk 1 willr 1 median 1 obv 1 percentrank 1 highest 1 highestbars 1 max 1 crossup 1 zscore 1 cum 1 rec 1 rma 1 days_to_earnings 1 roc 1 between 1 crossdown 1 dark_cloud 1

Examples 1–10 of 20 · page 1 of 2

Students and universities · example 1

Lesson 1: moving averages on AAPL (SMA, EMA, WMA)

Learn how three kinds of moving average weigh recent prices differently, by asking the same question with each one.

ora-fin-0.1.1AAPL5 questions

StateAAPL
Questions5 asked
Answersreal, captured
Actionsnone

State

{"symbol":"AAPL"} The server fills in the latest completed session.

Questions

`sma`	rule	`C > sma(C, 20)` Close above the 20-day simple average
`ema`	rule	`C > ema(C, 20)` Close above the 20-day exponential average
`wma`	rule	`C > wma(C, 20)` Close above the 20-day weighted average
`en`	English → rule	Is the stock above its 50-day moving average?
`up_week`	forecast	Will the stock be higher in a week? Higher in a week

Answers

Question	Answer	Reading
`sma` Close above the 20-day simple average	0.6713	true
`ema` Close above the 20-day exponential average	0.7079	true
`wma` Close above the 20-day weighted average	0.5536	on the line (true)
`en` Is the stock above its 50-day moving average compiled to `C > sma(C, 50)`	0.9119	true
`up_week` Higher in a week	0.59	59% · close to even

What it means

For AAPL on the session of 2026-10-30: True now: Close above the 20-day simple average; Close above the 20-day exponential average; Is the stock above its 50-day moving average. On the line: Close above the 20-day weighted average. Forecasts: Higher in a week 59%.

The lesson: EMA and WMA react faster than SMA, so after a sharp move they can disagree; the English question shows the same idea compiled for you.

Request JSON

{
  "model": "ora-fin-0.1.1",
  "state": {
    "symbol": "AAPL"
  },
  "questions": {
    "sma": {
      "type": "yes_no",
      "ask": "C > sma(C, 20)"
    },
    "ema": {
      "type": "yes_no",
      "ask": "C > ema(C, 20)"
    },
    "wma": {
      "type": "yes_no",
      "ask": "C > wma(C, 20)"
    },
    "en": {
      "type": "yes_no",
      "instructions": "Is the stock above its 50-day moving average?"
    },
    "up_week": {
      "type": "yes_no",
      "instructions": "Will the stock be higher in a week?"
    }
  }
}

Response JSON (AAPL, real)

{
  "model": "ora-fin-0.1.1",
  "answers": {
    "sma": {
      "yes_no": 0.6713,
      "rule": "C > sma(C, 20)",
      "basis": "rule"
    },
    "ema": {
      "yes_no": 0.7079,
      "rule": "C > ema(C, 20)",
      "basis": "rule"
    },
    "wma": {
      "yes_no": 0.5536,
      "rule": "C > wma(C, 20)",
      "basis": "rule"
    },
    "en": {
      "yes_no": 0.9119,
      "rule": "C > sma(C, 50)",
      "basis": "comparison"
    },
    "up_week": {
      "yes_no": 0.59
    }
  },
  "context": {
    "symbol": "AAPL",
    "as_of": "2026-10-30"
  }
}

ema sma wma

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Students and universities · example 2

Lesson 2: RSI, overbought and oversold, on MSFT

Read RSI at three thresholds and see a crossing event, which is true on far fewer days than a level.

ora-fin-0.1.1MSFT5 questions

StateMSFT
Questions5 asked
Answersreal, captured
Actionsnone

State

{"symbol":"MSFT"} The server fills in the latest completed session.

Questions

`rsi50`	rule	`rsi(C, 14) > 50` RSI above 50
`ob`	English → rule	Is the stock overbought on RSI, above 70?
`os`	English → rule	Is the stock oversold on RSI, below 30?
`x30`	English → rule	Did RSI cross above 30 today?
`rsi2`	rule	`rsi(C, 2) < 10` Two-day RSI under 10

Answers

Question	Answer	Reading
`rsi50` RSI above 50	0.4101	on the line (false)
`ob` Is the stock overbought on RSI, above 70 compiled to `rsi(C, 14) > 70`	0.0537	false
`os` Is the stock oversold on RSI, below 30 compiled to `rsi(C, 14) < 30`	0.0557	false
`x30` Did RSI cross above 30 today compiled to `(rsi(C, 14) > 30) and (ref(rsi(C, 14), -1) <= 30)`	0.0537	false
`rsi2` Two-day RSI under 10	0.5812	on the line (true)

What it means

For MSFT on the session of 2026-10-30: Not true: Is the stock overbought on RSI, above 70; Is the stock oversold on RSI, below 30; Did RSI cross above 30 today. On the line: RSI above 50; Two-day RSI under 10.

Levels describe a state that can last for weeks; crossings are one-day events. Compare RSI(14) with the much faster RSI(2).

Request JSON

{
  "model": "ora-fin-0.1.1",
  "state": {
    "symbol": "MSFT"
  },
  "questions": {
    "rsi50": {
      "type": "yes_no",
      "ask": "rsi(C, 14) > 50"
    },
    "ob": {
      "type": "yes_no",
      "instructions": "Is the stock overbought on RSI, above 70?"
    },
    "os": {
      "type": "yes_no",
      "instructions": "Is the stock oversold on RSI, below 30?"
    },
    "x30": {
      "type": "yes_no",
      "instructions": "Did RSI cross above 30 today?"
    },
    "rsi2": {
      "type": "yes_no",
      "ask": "rsi(C, 2) < 10"
    }
  }
}

Response JSON (MSFT, real)

{
  "model": "ora-fin-0.1.1",
  "answers": {
    "rsi50": {
      "yes_no": 0.4101,
      "rule": "rsi(C, 14) > 50",
      "basis": "rule"
    },
    "ob": {
      "yes_no": 0.0537,
      "rule": "rsi(C, 14) > 70",
      "basis": "pattern"
    },
    "os": {
      "yes_no": 0.0557,
      "rule": "rsi(C, 14) < 30",
      "basis": "pattern"
    },
    "x30": {
      "yes_no": 0.0537,
      "rule": "(rsi(C, 14) > 30) and (ref(rsi(C, 14), -1) <= 30)",
      "basis": "comparison"
    },
    "rsi2": {
      "yes_no": 0.5812,
      "rule": "rsi(C, 2) < 10",
      "basis": "rule"
    }
  },
  "context": {
    "symbol": "MSFT",
    "as_of": "2026-10-30"
  }
}

ref rsi

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Students and universities · example 3

Lesson 3: candlestick patterns on SPY

Test a set of candle definitions on today's SPY bar and learn what each one requires.

ora-fin-0.1.1SPY6 questions

StateSPY
Questions6 asked
Answersreal, captured
Actionsnone

State

{"symbol":"SPY"} The server fills in the latest completed session.

Questions

`doji`	rule	`doji()` doji candle: Body at most 10% of the day's range.
`hammer`	rule	`hammer()` hammer candle: Lower wick at least twice the body, upper wick at most 10% of the range, closing below the close five bars back.
`engulf`	rule	`engulfing_bull()` engulfing bull candle: A green body that engulfs yesterday's red body.
`marubozu`	rule	`marubozu()` marubozu candle: Body at least 90% of the range: almost no wicks.
`outside`	rule	`outside_bar()` outside bar candle: Today's high above yesterday's and low below it.
`inside`	rule	`inside_bar()` inside bar candle: Today's high and low are inside yesterday's (equal counts).

Answers

Question	Answer	Reading
`doji` doji candle: Body at most 10% of the day's range.	0.0579	false
`hammer` hammer candle: Lower wick at least twice the body, upper wick at most 10% of the range, closing below the close five bars back.	0.0941	false
`engulf` engulfing bull candle: A green body that engulfs yesterday's red body.	0.0597	false
`marubozu` marubozu candle: Body at least 90% of the range: almost no wicks.	0.0537	false
`outside` outside bar candle: Today's high above yesterday's and low below it.	0.0614	false
`inside` inside bar candle: Today's high and low are inside yesterday's (equal counts).	0.0537	false

What it means

For SPY on the session of 2026-10-30: Not true: doji candle: Body at most 10% of the day's range.; hammer candle: Lower wick at least twice the body, upper wick at most 10% of the range, closing below the close five bars back.; engulfing bull candle: A green body that engulfs yesterday's red body.; marubozu candle: Body at least 90% of the range: almost no wicks.; outside bar candle: Today's high above yesterday's and low below it.; inside bar candle: Today's high and low are inside yesterday's (equal counts)..

Most candles are false on most days; that rarity is why they get names. Look up each definition in the function reference.

Request JSON

{
  "model": "ora-fin-0.1.1",
  "state": {
    "symbol": "SPY"
  },
  "questions": {
    "doji": {
      "type": "yes_no",
      "ask": "doji()"
    },
    "hammer": {
      "type": "yes_no",
      "ask": "hammer()"
    },
    "engulf": {
      "type": "yes_no",
      "ask": "engulfing_bull()"
    },
    "marubozu": {
      "type": "yes_no",
      "ask": "marubozu()"
    },
    "outside": {
      "type": "yes_no",
      "ask": "outside_bar()"
    },
    "inside": {
      "type": "yes_no",
      "ask": "inside_bar()"
    }
  }
}

Response JSON (SPY, real)

{
  "model": "ora-fin-0.1.1",
  "answers": {
    "doji": {
      "yes_no": 0.0579,
      "rule": "doji()",
      "basis": "rule"
    },
    "hammer": {
      "yes_no": 0.0941,
      "rule": "hammer()",
      "basis": "rule"
    },
    "engulf": {
      "yes_no": 0.0597,
      "rule": "engulfing_bull()",
      "basis": "rule"
    },
    "marubozu": {
      "yes_no": 0.0537,
      "rule": "marubozu()",
      "basis": "rule"
    },
    "outside": {
      "yes_no": 0.0614,
      "rule": "outside_bar()",
      "basis": "rule"
    },
    "inside": {
      "yes_no": 0.0537,
      "rule": "inside_bar()",
      "basis": "rule"
    }
  },
  "context": {
    "symbol": "SPY",
    "as_of": "2026-10-30"
  }
}

doji engulfing_bull hammer inside_bar marubozu outside_bar

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Students and universities · example 4

Lesson 4: earnings facts for JPM

Learn the difference between a fact (did the bank beat last quarter) and a forecast (will it beat next quarter).

ora-fin-0.1.1JPM5 questions

StateJPM
Questions5 asked
Answersreal, captured
Actionsnone

State

{"symbol":"JPM"} The server fills in the latest completed session.

Questions

`beat`	English → rule	Did the stock beat EPS estimates last quarter?
`surprise`	English → rule	Did EPS beat estimates by more than 5% last quarter?
`rev`	English → rule	Did revenue beat estimates last quarter?
`eps_g`	English → rule	Did EPS grow more than 10% year over year?
`next`	forecast	Will the stock beat earnings next quarter? Beating earnings next quarter

Answers

Question	Answer	Reading
`beat` Did the stock beat EPS estimates last quarter compiled to `beat_eps_last > 0.5`	0.1409	false
`surprise` Did EPS beat estimates by more than 5% last quarter compiled to `eps_surprise_pct > 5`	0.0844	false
`rev` Did revenue beat estimates last quarter compiled to `beat_revenue_last > 0.5`	0.1409	false
`eps_g` Did EPS grow more than 10% year over year compiled to `eps_growth_yoy > 10`	0.6893	true
`next` Beating earnings next quarter	0.506	51% · close to even

What it means

For JPM on the session of 2026-10-30: True now: Did EPS grow more than 10% year over year. Not true: Did the stock beat EPS estimates last quarter; Did EPS beat estimates by more than 5% last quarter; Did revenue beat estimates last quarter. Forecasts: Beating earnings next quarter 51%.

Answers with a rule come from the report record; the next-quarter answer has no rule because it is a forecast.

Request JSON

{
  "model": "ora-fin-0.1.1",
  "state": {
    "symbol": "JPM"
  },
  "questions": {
    "beat": {
      "type": "yes_no",
      "instructions": "Did the stock beat EPS estimates last quarter?"
    },
    "surprise": {
      "type": "yes_no",
      "instructions": "Did EPS beat estimates by more than 5% last quarter?"
    },
    "rev": {
      "type": "yes_no",
      "instructions": "Did revenue beat estimates last quarter?"
    },
    "eps_g": {
      "type": "yes_no",
      "instructions": "Did EPS grow more than 10% year over year?"
    },
    "next": {
      "type": "yes_no",
      "instructions": "Will the stock beat earnings next quarter?"
    }
  }
}

Response JSON (JPM, real)

{
  "model": "ora-fin-0.1.1",
  "answers": {
    "beat": {
      "yes_no": 0.1409,
      "rule": "beat_eps_last > 0.5",
      "basis": "pattern"
    },
    "surprise": {
      "yes_no": 0.0844,
      "rule": "eps_surprise_pct > 5",
      "basis": "pattern"
    },
    "rev": {
      "yes_no": 0.1409,
      "rule": "beat_revenue_last > 0.5",
      "basis": "pattern"
    },
    "eps_g": {
      "yes_no": 0.6893,
      "rule": "eps_growth_yoy > 10",
      "basis": "pattern"
    },
    "next": {
      "yes_no": 0.506
    }
  },
  "context": {
    "symbol": "JPM",
    "as_of": "2026-10-30"
  }
}

beat_eps_last beat_revenue_last eps_growth_yoy eps_surprise_pct

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Students and universities · example 5

Lesson 5: dividend facts on JNJ and KO

Compare two famous dividend payers on yield, growth streak and payment frequency.

ora-fin-0.1.12 symbols, one request each5 questions

State2 symbols
Questions5 asked
Answersreal, captured
Actionsnone

State

{"symbol":"JNJ"} then KO, one request each. The server fills in the latest completed session.

Questions

`yield3`	English → rule	Is the dividend yield above 3%?
`grow25`	English → rule	Has the stock grown its dividend for 25 years in a row?
`quarterly`	rule	`div_count_ttm >= 4` Pays at least quarterly
`raised`	rule	`raised_last > 0.5` Raised its last dividend
`raise_next`	forecast	Will the company raise its dividend next year? Raising the dividend next year

Answers

Symbol	`yield3`rule	`grow25`rule	`quarterly`rule	`raised`rule	`raise_next`forecast
`JNJ`	0.0648	0.9463	0.55	0.1409	0.495
`KO`	0.0537	0.0683	0.55	0.1409	0.517

true false not known for rules; forecasts are odds. Hover a column for its question.

What it means

Session of 2026-10-30, 2 symbols: Is the dividend yield above 3%: true for none of 2. Has the stock grown its dividend for 25 years in a row: true for JNJ of 2. Pays at least quarterly: true for none of 2. Raised its last dividend: true for none of 2. Highest odds for “Raising the dividend next year”: KO at 52%.

The growth streak counts calendar years of higher totals, so an extra or missing payment in a year can break it: read the definition.

Request JSON (JNJ; the others differ only in the symbol)

{
  "model": "ora-fin-0.1.1",
  "state": {
    "symbol": "JNJ"
  },
  "questions": {
    "yield3": {
      "type": "yes_no",
      "instructions": "Is the dividend yield above 3%?"
    },
    "grow25": {
      "type": "yes_no",
      "instructions": "Has the stock grown its dividend for 25 years in a row?"
    },
    "quarterly": {
      "type": "yes_no",
      "ask": "div_count_ttm >= 4"
    },
    "raised": {
      "type": "yes_no",
      "ask": "raised_last > 0.5"
    },
    "raise_next": {
      "type": "yes_no",
      "instructions": "Will the company raise its dividend next year?"
    }
  }
}

Response JSON (JNJ, real)

{
  "model": "ora-fin-0.1.1",
  "answers": {
    "yield3": {
      "yes_no": 0.0648,
      "rule": "div_yield_ttm > 3",
      "basis": "pattern"
    },
    "grow25": {
      "yes_no": 0.9463,
      "rule": "years_of_growth >= 25",
      "basis": "pattern"
    },
    "quarterly": {
      "yes_no": 0.55,
      "rule": "div_count_ttm >= 4",
      "basis": "rule"
    },
    "raised": {
      "yes_no": 0.1409,
      "rule": "raised_last > 0.5",
      "basis": "rule"
    },
    "raise_next": {
      "yes_no": 0.495
    }
  },
  "context": {
    "symbol": "JNJ",
    "as_of": "2026-10-30"
  }
}

div_count_ttm div_yield_ttm raised_last years_of_growth

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Students and universities · example 6

Lesson 6: stock splits and adjusted prices (NVDA, AAPL)

Learn why charts are split-adjusted, and check each company's split record.

ora-fin-0.1.12 symbols, one request each5 questions

State2 symbols
Questions5 asked
Answersreal, captured
Actionsnone

State

{"symbol":"NVDA"} then AAPL, one request each. The server fills in the latest completed session.

Questions

`split3y`	rule	`days_since_split <= 1095` Split in the last three years
`ratio4`	rule	`last_split_ratio >= 4` Last split at least 4-for-1
`reverse`	English → rule	Was the last split a reverse split?
`multi`	rule	`splits_5y >= 2` Two or more splits in five years
`coming`	English → rule	Is a stock split coming up?

Answers

Symbol	`split3y`rule	`ratio4`rule	`reverse`rule	`multi`rule	`coming`rule
`NVDA`	0.9463	0.9463	0.1409	0.1409	0.0537
`AAPL`	0.0537	0.55	0.1409	0.0683	0.0537

true false not known for rules; forecasts are odds. Hover a column for its question.

What it means

Session of 2026-10-30, 2 symbols: Split in the last three years: true for NVDA of 2. Last split at least 4-for-1: true for NVDA of 2. Was the last split a reverse split: true for none of 2. Two or more splits in five years: true for none of 2.

A split changes the share count, not the value; prices in the engine are adjusted so a 4-for-1 split does not look like a crash.

Request JSON (NVDA; the others differ only in the symbol)

{
  "model": "ora-fin-0.1.1",
  "state": {
    "symbol": "NVDA"
  },
  "questions": {
    "split3y": {
      "type": "yes_no",
      "ask": "days_since_split <= 1095"
    },
    "ratio4": {
      "type": "yes_no",
      "ask": "last_split_ratio >= 4"
    },
    "reverse": {
      "type": "yes_no",
      "instructions": "Was the last split a reverse split?"
    },
    "multi": {
      "type": "yes_no",
      "ask": "splits_5y >= 2"
    },
    "coming": {
      "type": "yes_no",
      "instructions": "Is a stock split coming up?"
    }
  }
}

Response JSON (NVDA, real)

{
  "model": "ora-fin-0.1.1",
  "answers": {
    "split3y": {
      "yes_no": 0.9463,
      "rule": "days_since_split <= 1095",
      "basis": "rule"
    },
    "ratio4": {
      "yes_no": 0.9463,
      "rule": "last_split_ratio >= 4",
      "basis": "rule"
    },
    "reverse": {
      "yes_no": 0.1409,
      "rule": "reverse_split_last > 0.5",
      "basis": "pattern"
    },
    "multi": {
      "yes_no": 0.1409,
      "rule": "splits_5y >= 2",
      "basis": "rule"
    },
    "coming": {
      "yes_no": 0.0537,
      "rule": "days_to_split <= 365",
      "basis": "pattern"
    }
  },
  "context": {
    "symbol": "NVDA",
    "as_of": "2026-10-30"
  }
}

days_since_split days_to_split last_split_ratio reverse_split_last splits_5y

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Students and universities · example 7

Lesson 7: measuring volatility on TSLA

Three ways to measure volatility: ATR, standard deviation of returns, and the true range of one bar.

ora-fin-0.1.1TSLA5 questions

StateTSLA
Questions5 asked
Answersreal, captured
Actionsnone

State

{"symbol":"TSLA"} The server fills in the latest completed session.

Questions

`atr`	rule	`atr_pct(14) > 3` A typical day moves more than 3%
`hv`	rule	`std(log(C / C[-1]), 20) * sqrt(252) > 0.5` 20-day annualized volatility above 50%
`tr`	rule	`tr() > 1.5 * ref(atr(14), -1)` True range 1.5× yesterday's ATR
`compress`	rule	`std(C, 10) < 0.5 * std(C, 50)` Swings less than half their 50-day size
`vol_up`	forecast	Will volatility be higher over the next month? Higher volatility next month

Answers

Question	Answer	Reading
`atr` A typical day moves more than 3%	0.848	true
`hv` 20-day annualized volatility above 50%	0.1042	false
`tr` True range 1.5× yesterday's ATR	0.2396	false
`compress` Swings less than half their 50-day size	0.1204	false
`vol_up` Higher volatility next month	0.446	45% · close to even

What it means

For TSLA on the session of 2026-10-30: True now: A typical day moves more than 3%. Not true: 20-day annualized volatility above 50%; True range 1.5× yesterday's ATR; Swings less than half their 50-day size. Forecasts: Higher volatility next month 45%.

ATR is in price units, historical volatility in annual percent; the forecast asks about future volatility, which no rule can know.

Request JSON

{
  "model": "ora-fin-0.1.1",
  "state": {
    "symbol": "TSLA"
  },
  "questions": {
    "atr": {
      "type": "yes_no",
      "ask": "atr_pct(14) > 3"
    },
    "hv": {
      "type": "yes_no",
      "ask": "std(log(C / C[-1]), 20) * sqrt(252) > 0.5"
    },
    "tr": {
      "type": "yes_no",
      "ask": "tr() > 1.5 * ref(atr(14), -1)"
    },
    "compress": {
      "type": "yes_no",
      "ask": "std(C, 10) < 0.5 * std(C, 50)"
    },
    "vol_up": {
      "type": "yes_no",
      "instructions": "Will volatility be higher over the next month?"
    }
  }
}

Response JSON (TSLA, real)

{
  "model": "ora-fin-0.1.1",
  "answers": {
    "atr": {
      "yes_no": 0.848,
      "rule": "atr_pct(14) > 3",
      "basis": "rule"
    },
    "hv": {
      "yes_no": 0.1042,
      "rule": "std(log(C / C[-1]), 20) * sqrt(252) > 0.5",
      "basis": "rule"
    },
    "tr": {
      "yes_no": 0.2396,
      "rule": "tr() > 1.5 * ref(atr(14), -1)",
      "basis": "rule"
    },
    "compress": {
      "yes_no": 0.1204,
      "rule": "std(C, 10) < 0.5 * std(C, 50)",
      "basis": "rule"
    },
    "vol_up": {
      "yes_no": 0.446
    }
  },
  "context": {
    "symbol": "TSLA",
    "as_of": "2026-10-30"
  }
}

atr atr_pct log offset ref sqrt std tr

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Students and universities · example 8

Lesson 8: Bollinger Bands on QQQ

See where price sits against the bands and learn what a squeeze means.

ora-fin-0.1.1QQQ5 questions

StateQQQ
Questions5 asked
Answersreal, captured
Actionsnone

State

{"symbol":"QQQ"} The server fills in the latest completed session.

Questions

`upper`	English → rule	Did the stock close above the upper Bollinger Band?
`lower`	English → rule	Did the stock close below the lower Bollinger Band?
`mid`	English → rule	Is the stock above the middle Bollinger Band?
`squeeze`	rule	`(bbupper(C, 20, 2) - bblower(C, 20, 2)) / bbmid(C, 20) < 0.06` Bollinger bands narrower than 6% of price
`pctb`	English → rule	Is Bollinger %B below 0.2?

Answers

Question	Answer	Reading
`upper` Did the stock close above the upper Bollinger Band compiled to `C > bbupper(C, 20)`	0.0537	false
`lower` Did the stock close below the lower Bollinger Band compiled to `C < bblower(C, 20)`	0.4523	on the line (false)
`mid` Is the stock above the middle Bollinger Band compiled to `C > bbmid(C, 20)`	0.0645	false
`squeeze` Bollinger bands narrower than 6% of price	0.0789	false
`pctb` Is Bollinger %B below 0.2 compiled to `(C - bblower(C, 20)) / (bbupper(C, 20) - bblower(C, 20)) < 0.2`	0.7604	true

What it means

For QQQ on the session of 2026-10-30: True now: Is Bollinger %B below 0.2. Not true: Did the stock close above the upper Bollinger Band; Is the stock above the middle Bollinger Band; Bollinger bands narrower than 6% of price. On the line: Did the stock close below the lower Bollinger Band.

The bands are a moving average plus and minus two standard deviations; a squeeze is narrow bands, not a direction.

Request JSON

{
  "model": "ora-fin-0.1.1",
  "state": {
    "symbol": "QQQ"
  },
  "questions": {
    "upper": {
      "type": "yes_no",
      "instructions": "Did the stock close above the upper Bollinger Band?"
    },
    "lower": {
      "type": "yes_no",
      "instructions": "Did the stock close below the lower Bollinger Band?"
    },
    "mid": {
      "type": "yes_no",
      "instructions": "Is the stock above the middle Bollinger Band?"
    },
    "squeeze": {
      "type": "yes_no",
      "ask": "(bbupper(C, 20, 2) - bblower(C, 20, 2)) / bbmid(C, 20) < 0.06"
    },
    "pctb": {
      "type": "yes_no",
      "instructions": "Is Bollinger %B below 0.2?"
    }
  }
}

Response JSON (QQQ, real)

{
  "model": "ora-fin-0.1.1",
  "answers": {
    "upper": {
      "yes_no": 0.0537,
      "rule": "C > bbupper(C, 20)",
      "basis": "comparison"
    },
    "lower": {
      "yes_no": 0.4523,
      "rule": "C < bblower(C, 20)",
      "basis": "comparison"
    },
    "mid": {
      "yes_no": 0.0645,
      "rule": "C > bbmid(C, 20)",
      "basis": "comparison"
    },
    "squeeze": {
      "yes_no": 0.0789,
      "rule": "(bbupper(C, 20, 2) - bblower(C, 20, 2)) / bbmid(C, 20) < 0.06",
      "basis": "rule"
    },
    "pctb": {
      "yes_no": 0.7604,
      "rule": "(C - bblower(C, 20)) / (bbupper(C, 20) - bblower(C, 20)) < 0.2",
      "basis": "pattern"
    }
  },
  "context": {
    "symbol": "QQQ",
    "as_of": "2026-10-30"
  }
}

bblower bbmid bbupper

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Students and universities · example 9

Lesson 9: MACD line, signal and histogram on AMD

Learn the three parts of MACD and which question each one answers.

ora-fin-0.1.1AMD5 questions

StateAMD
Questions5 asked
Answersreal, captured
Actionsnone

State

{"symbol":"AMD"} The server fills in the latest completed session.

Questions

`zero`	English → rule	Is MACD above zero?
`signal`	English → rule	Is the MACD line above its signal line?
`hist`	English → rule	Is the MACD histogram rising?
`xup`	English → rule	Did MACD cross above its signal line today?
`xdn`	English → rule	Did MACD cross below its signal line today?

Answers

Question	Answer	Reading
`zero` Is MACD above zero compiled to `macd(C) > 0`	0.2479	false
`signal` Is the MACD line above its signal line compiled to `macd(C) > macdsignal(C)`	0.2076	false
`hist` Is the MACD histogram rising compiled to `macdhist(C) > ref(macdhist(C), -1)`	0.0938	false
`xup` Did MACD cross above its signal line today compiled to `(macd(C) > macdsignal(C)) and (ref(macd(C), -1) <= ref(macdsignal(C), -1))`	0.2076	false
`xdn` Did MACD cross below its signal line today compiled to `(macd(C) < macdsignal(C)) and (ref(macd(C), -1) >= ref(macdsignal(C), -1))`	0.3188	false

What it means

For AMD on the session of 2026-10-30: Not true: Is MACD above zero; Is the MACD line above its signal line; Is the MACD histogram rising; Did MACD cross above its signal line today; Did MACD cross below its signal line today.

Above zero says the short average is above the long one; above signal says momentum is improving; the histogram is the gap between them.

Request JSON

{
  "model": "ora-fin-0.1.1",
  "state": {
    "symbol": "AMD"
  },
  "questions": {
    "zero": {
      "type": "yes_no",
      "instructions": "Is MACD above zero?"
    },
    "signal": {
      "type": "yes_no",
      "instructions": "Is the MACD line above its signal line?"
    },
    "hist": {
      "type": "yes_no",
      "instructions": "Is the MACD histogram rising?"
    },
    "xup": {
      "type": "yes_no",
      "instructions": "Did MACD cross above its signal line today?"
    },
    "xdn": {
      "type": "yes_no",
      "instructions": "Did MACD cross below its signal line today?"
    }
  }
}

Response JSON (AMD, real)

{
  "model": "ora-fin-0.1.1",
  "answers": {
    "zero": {
      "yes_no": 0.2479,
      "rule": "macd(C) > 0",
      "basis": "pattern"
    },
    "signal": {
      "yes_no": 0.2076,
      "rule": "macd(C) > macdsignal(C)",
      "basis": "comparison"
    },
    "hist": {
      "yes_no": 0.0938,
      "rule": "macdhist(C) > ref(macdhist(C), -1)",
      "basis": "pattern"
    },
    "xup": {
      "yes_no": 0.2076,
      "rule": "(macd(C) > macdsignal(C)) and (ref(macd(C), -1) <= ref(macdsignal(C), -1))",
      "basis": "comparison"
    },
    "xdn": {
      "yes_no": 0.3188,
      "rule": "(macd(C) < macdsignal(C)) and (ref(macd(C), -1) >= ref(macdsignal(C), -1))",
      "basis": "comparison"
    }
  },
  "context": {
    "symbol": "AMD",
    "as_of": "2026-10-30"
  }
}

macd macdhist macdsignal ref

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Students and universities · example 10

Lesson 10: swing highs and lows on HD

Learn how swing points are confirmed (only n bars later, so no look-ahead) and how higher lows define an uptrend.

ora-fin-0.1.1HD5 questions

StateHD
Questions5 asked
Answersreal, captured
Actionsnone

State

{"symbol":"HD"} The server fills in the latest completed session.

Questions

`hh`	rule	`swinghigh(3, 1) > swinghigh(3, 2)` Latest swing high above the one before
`hl`	rule	`swinglow(3, 1) > swinglow(3, 2)` Latest swing low above the one before
`above_sh`	rule	`C > swinghigh(5)` Above its last confirmed swing high
`near_sup`	English → rule	Is the stock within 2% above its last swing low (support)?
`break_res`	forecast	Will it break above resistance this week? Breaking resistance this week

Answers

Question	Answer	Reading
`hh` Latest swing high above the one before	0.0537	false
`hl` Latest swing low above the one before	0.0732	false
`above_sh` Above its last confirmed swing high	0.1048	false
`near_sup` Is the stock within 2% above its last swing low (support) compiled to `(C >= swinglow(5, 1)) and (C <= swinglow(5, 1) * 1.02)`	0.0877	false
`break_res` Breaking resistance this week	0.462	46% · close to even

What it means

For HD on the session of 2026-10-30: Not true: Latest swing high above the one before; Latest swing low above the one before; Above its last confirmed swing high; Is the stock within 2% above its last swing low (support). Forecasts: Breaking resistance this week 46%.

swinghigh(n, k) is the k-th most recent pivot of strength n; it is known only n bars after the pivot, which keeps backtests honest.

Request JSON

{
  "model": "ora-fin-0.1.1",
  "state": {
    "symbol": "HD"
  },
  "questions": {
    "hh": {
      "type": "yes_no",
      "ask": "swinghigh(3, 1) > swinghigh(3, 2)"
    },
    "hl": {
      "type": "yes_no",
      "ask": "swinglow(3, 1) > swinglow(3, 2)"
    },
    "above_sh": {
      "type": "yes_no",
      "ask": "C > swinghigh(5)"
    },
    "near_sup": {
      "type": "yes_no",
      "instructions": "Is the stock within 2% above its last swing low (support)?"
    },
    "break_res": {
      "type": "yes_no",
      "instructions": "Will it break above resistance this week?"
    }
  }
}

Response JSON (HD, real)

{
  "model": "ora-fin-0.1.1",
  "answers": {
    "hh": {
      "yes_no": 0.0537,
      "rule": "swinghigh(3, 1) > swinghigh(3, 2)",
      "basis": "rule"
    },
    "hl": {
      "yes_no": 0.0732,
      "rule": "swinglow(3, 1) > swinglow(3, 2)",
      "basis": "rule"
    },
    "above_sh": {
      "yes_no": 0.1048,
      "rule": "C > swinghigh(5)",
      "basis": "rule"
    },
    "near_sup": {
      "yes_no": 0.0877,
      "rule": "(C >= swinglow(5, 1)) and (C <= swinglow(5, 1) * 1.02)",
      "basis": "pattern"
    },
    "break_res": {
      "yes_no": 0.462
    }
  },
  "context": {
    "symbol": "HD",
    "as_of": "2026-10-30"
  }
}

swinghigh swinglow

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Information, not investment advice. Rules answer from the latest completed daily session; forecasts are probabilities. Actions ran as dry runs: nothing was sent. More in Individuals: Retail investor, Active day trader, Swing trader, Options trader, Dividend investor, Long-term passive investor, Crypto trader, FX trader, Commodities trader, Social trading community.

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Institutions

Lesson 1: moving averages on AAPL (SMA, EMA, WMA)

State

Questions

Answers

What it means

Lesson 2: RSI, overbought and oversold, on MSFT

State

Questions

Answers

What it means

Lesson 3: candlestick patterns on SPY

State

Questions

Answers

What it means

Lesson 4: earnings facts for JPM

State

Questions

Answers

What it means

Lesson 5: dividend facts on JNJ and KO

State

Questions

Answers

What it means

Lesson 6: stock splits and adjusted prices (NVDA, AAPL)

State

Questions

Answers

What it means

Lesson 7: measuring volatility on TSLA

State

Questions

Answers

What it means

Lesson 8: Bollinger Bands on QQQ

State

Questions

Answers

What it means

Lesson 9: MACD line, signal and histogram on AMD

State

Questions

Answers

What it means

Lesson 10: swing highs and lows on HD

State

Questions

Answers

What it means