Theory tester
Put a theory to the test on any stock
Pick a stock and a theory. See what it says tonight, why, and the price that would change its mind. Then roll through every play's reason to buy or not, best record first.
2 Pick a theory
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3 The reading
All the plays on NVDA · Nvidia, $228.52
Split
54 of 100 plays say buy NVDA tonight; 46 say don't. Be The Puck's signal , with the standard weights, reads Buy (71).
Buy 54 Don't buy 46
4 Roll through every reason
Reasons to buy 54 Reasons not to 46
Above the 200-day average, buy a close at a 7-day low and sell a close at a 7-day high.
Why In when the stock is above its 200-day average and closes at its lowest close of the last 7 days. Since Has said buy since Oct 9, 2026, at $229.28. NVDA has moved −0.3% since. Changes its mind Sells on a daily close above $239.24. (+4.7% from tonight's close) Its record on NVDA Right on 251 of 415 calls. +12.8% a year, against +38.9% for buying and holding , since 2005. Its call and record on the NVDA page ← 1 of 54 → ▶ Roll through
Double 7s Mean reversion · right 251/415 RSI(2) Pullback Mean reversion · right 203/345 Seykota 15/150 Trend following · right 8/14 10-Month SMA Trend following · right 13/24 Coppock Curve Momentum · right 6/11 Golden Cross Trend following · right 11/21 Weekend Effect Calendar · right 1151/2284 Mayer Multiple Mean reversion · no closed calls yet Lunar Cycle Calendar · right 265/541 Engulfing Switch Candles & chart patterns · right 54/111 Presidential Sweet Spot Calendar · right 5/11 12-1 Momentum Momentum · right 8/18 Williams Alligator Trend following · right 145/328 Four-Week Rule Breakouts & channels · right 52/120 Zweig 4% Model Trend following · right 111/278 TRIX Signal Cross Momentum · right 107/276 Hull Moving Average Trend following · right 50/130 Negative Volume Index Volume & money flow · right 39/102 13612W Momentum Momentum · right 21/56 52-Week High Momentum · right 10/27 Know Sure Thing Momentum · right 121/320 Frog in the Pan Momentum · right 8/22 Market-State Momentum Momentum · right 5/14 Wilder Volatility System Breakouts & channels · right 62/166 Aroon Trend following · right 75/204 Chandelier Exit Breakouts & channels · right 72/196 12-Month Momentum Momentum · right 7/20 P&F Double Top Breakouts & channels · right 60/166 Supertrend Trend following · right 60/166 Dual Momentum Momentum · right 8/23 Darvas Box Breakouts & channels · right 45/126 Stage Analysis Trend following · right 23/65 Stage 2 + Mansfield RS Trend following · right 25/72 Volume Flow Indicator Volume & money flow · right 21/62 Bull Market Support Band Trend following · right 31/94 Buff Averages Volume & money flow · right 114/356 Ichimoku Cloud Trend following · right 34/108 Hikkake Candles & chart patterns · right 35/112 MAMA/FAMA Cross Trend following · right 74/236 Clenow Trend Breakouts & channels · right 31/105 Guppy Multiple MAs Trend following · right 42/144 MACD Zero Line Trend following · right 55/192 DP Trend Model Trend following · right 27/96 Zero Lag EC Cross Trend following · right 50/180 TSI Zero Line Momentum · right 53/192 Levy Relative Strength Momentum · right 34/124 Granville 200-Day Trend following · right 17/63 January Barometer Calendar · right 5/20 Chande Kroll Stop Breakouts & channels · right 93/348 On-Balance Volume Volume & money flow · right 182/720 200-Day Rule Trend following · right 22/90 Ripster EMA Cloud Trend following · right 77/352 Stocks on the Move Momentum · right 30/183 Trend Template Trend following · right 40/253 Best record on NVDA first. A play agrees with buying when it holds the stock tonight.
Readings use the Oct 13, 2026 close. A play's record counts every call it would have made on this stock since its history allows, after trading costs . This analysis does not constitute trading advice. Please meet with an advisor or independently review sources before making any decision.
