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Market Events — See What Moves Prices

See market events and their impact on asset pricing. Pick any signal — a volatility spike, a breakout, a big down day — find every time it has happened, and measure how prices actually behaved afterwards.

Define Event
Condition
Example Conditions

Click any row to load it into the form and run. Mix simple price/volume thresholds, regime shifts, and rare catalyst days.

Volatility Shocks
$VIX|C > 40VIX above 40 (extreme fear)
$VIX|C > C[-1] * 1.3VIX jumps 30% in a day
SPY|((C - C[-1]) / C[-1]) * 100 < -3S&P 500 drops more than 3%
SPY|((C - C[-1]) / C[-1]) * 100 > 2S&P 500 rallies more than 2% (relief days)
Trend & Breakouts
QQQ|C > ref(max(C, 252), -1)Nasdaq-100 makes a fresh 52-week high
AAPL|(C > avg(C, 50)) and (C[-1] < avg(C, 50))AAPL reclaims its 50-day moving average
NVDA|(C > ref(max(C, 20), -1)) and (V > 1.5 * avg(V, 20))NVDA breaks 20-day high on heavy volume
SPY|(avg(C, 50) > avg(C, 200)) and (ref(avg(C, 50), -1) <= ref(avg(C, 200), -1))S&P 500 golden cross (50MA crosses above 200MA)
Crypto & Risk
BTCUSD|((C - C[-1]) / C[-1]) * 100 > 5Bitcoin rallies more than 5% in a day
BTCUSD|((C - C[-1]) / C[-1]) * 100 < -7Bitcoin drops more than 7% (capitulation days)
BTCUSD|(C > avg(C, 50)) and (avg(C, 50) > avg(C, 200))Bitcoin in confirmed uptrend (price > 50MA > 200MA)
Earnings & Catalyst Days
AAPL|(V > 2 * avg(V, 20)) and (((C - C[-1]) / C[-1]) * 100 > 3)Apple jumps 3%+ on 2× volume (likely catalyst)
TSLA|(V > 2 * avg(V, 50)) and (((C - C[-1]) / C[-1]) * 100 < -5)Tesla drops 5%+ on heavy volume
META|((C - C[-1]) / C[-1]) * 100 > 10Meta up 10%+ in a day (the rare big moves)
Macro Echoes
GLD|(C > avg(C, 50)) and (C[-1] < avg(C, 50))Gold reclaims its 50-day MA
GLD|((C - C[-1]) / C[-1]) * 100 > 2Gold rallies more than 2% in a day
USO|((C - C[-1]) / C[-1]) * 100 > 5Crude oil ETF up 5%+ in a day
Formula Patterns

Building blocks you can copy, tweak, and combine. Click any pattern to load it as a row.

Price comparisons
Up day
C > C[-1]
Up > 5% in a day
C > C[-1] * 1.05
Close above 20-day MA
C > avg(C, 20)
Above 20MA and 20MA above 50MA
(C > avg(C, 20)) and (avg(C, 20) > avg(C, 50))
Breakouts
20-bar high (excl. today)
C > ref(max(C, 20), -1)
52-bar high (intraday)
C > ref(max(H, 52), -1)
20-bar high on 1.5× volume
(C > ref(max(C, 20), -1)) and (V > 1.5 * avg(V, 20))
Reversals & exhaustion
3 down then 2% bounce
(C[-1] < C[-2]) and (C[-2] < C[-3]) and (C > C[-1] * 1.02)
10-bar low broken intraday but green close
(L < ref(min(L, 10), -1)) and (C > O)
Volatility & range
Range > 2× avg 20-day range
(H - L) > 2 * avg(H - L, 20)
Inside day
(H < H[-1]) and (L > L[-1])
Volume
Volume > 2× 20-day avg
V > 2 * avg(V, 20)
Volume blow-off (3× 50-day)
V > 3 * avg(V, 50)
Combining with and / or
Above 20MA on rising volume
(C > avg(C, 20)) and (V > 1.5 * avg(V, 10))
Big move day (5% either direction)
(C > C[-1] * 1.05) or (C < C[-1] * 0.95)
Calendar & seasonality

Pick a calendar window, run it over an index or watchlist, then read the Per-Symbol tab to rank the best/worst responders.

December (best stocks in December)
month() == 12
January effect
month() == 1
Turn of the month (first 5 days)
dom() <= 5
Monday effect
dow() == 1
Friday effect
dow() == 5
Q4 strength
quarter() == 4
December up-days (1%+)
(month() == 12) and (((C - C[-1]) / C[-1]) * 100 > 1)
Formula DSL Cheat Sheet

Each row's formula uses bar-local variables that reference the row's symbol.
Example: (C > avg(C, 20)) and (V > 1.5 * avg(V, 10))

Bar Variables
VariableMeaning
OOpen
HHigh
LLow
CClose
VVolume
C[-1], H[-2], …Prior bars (negative offsets)
Functions
FunctionMeaning
avg(C, 20) / mean(C, 20)20-bar simple average of close
sum(V, 10)10-bar sum of volume
min(C, 20) / max(C, 20)20-bar lowest / highest close
ref(C, 5)Close 5 bars ago
between(x, lo, hi)True if lo ≤ x ≤ hi
least(a, b, …) / greatest(a, b, …)Min / max of arguments
Calendar

Zero-argument functions that read the bar's date — use them to build seasonal / day-of-week studies.

FunctionMeaning
month()Month, 1–12 (e.g. month() == 12 = December)
dom()Day of month, 1–31 (e.g. dom() <= 5 = turn of month)
dow()Day of week, 1=Mon … 5=Fri (e.g. dow() == 1 = Mondays)
quarter()Quarter, 1–4
year()Calendar year, e.g. 2026
week() / doy()ISO week 1–53 / day of year 1–366
Operators
OperatorPurpose
and / or / notLogical
+ - * /Arithmetic
> < >= <= == !=Comparison
(…)Grouping
Quick Examples
FormulaDescription
C > ref(max(C, 20), -1)20-bar high break (excl. current bar)
C < ref(min(C, 20), -1)20-bar low break (excl. current bar)
(C > avg(C, 20)) and (V > 1.5 * avg(V, 10))Above 20-day MA on 1.5× volume
(O > H[-1]) and (C > O)Gap up and run
(O < L[-1]) and (C < O)Gap down and run
Custom Event Dates

Date Range
  -   
What trading strategy would you like to simulate for each event date?
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