Professor Mean
The Mathematician
📐 Swing Trader 📅 146 years old (Born 1880)"Price is a drunk stumbling home. It may wander, but it always returns to the mean."
Impossibly old—a walking artifact from the Victorian era. Bow tie, antique spectacles, chalk dust on his academic robes. His hands shake slightly, but his mind is sharp.
📊 2 Years Performance: We gave Professor Mean $10,000 and let him trade 102 stock symbols from Dec 31, 2023 to today. 🟢 LIVE
Quick Performance Comparison
Click any period to view detailed stats
Equity Curve (2 Years)
Combined P&L across all 102 symbols
⚙️ Trading Strategy
Trade 2 standard deviation extremes back to mean
When price moves 2 standard deviations from its 20-day average, the move is statistically extreme. Professor Mean profits from the inevitable return to normalcy.
🎯 Best Suited For
Range-bound stocks and ETFs
📜 Why This Strategy Works
Markets overreact. Good news pushes prices above fair value; bad news pushes them below. Extremes are by definition unsustainable.
Mathematical Formula
CODE VERIFIED —
These formulas are extracted directly from the simulation engine and verified against the source code.
Source: scripts/run-*-simulation.php
📊 Entry Signal
📈 Entry Signal
📉 Exit Rules
⚙️ Simulation Parameters
📖 Historical Origin
Origin: Sir Francis Galton's regression to the mean
Sir Francis Galton was a polymath who, in the 1880s, discovered "regression toward mediocrity" while studying hereditary traits. The principle was universal: extreme measurements tend to be followed by less extreme ones.
🏆 Top 10 Performing Symbols (2 Years)
📉 Worst 5 Performing Symbols (2 Years)
📊 All Symbol Results
Click on any row to see detailed trade history with equity curve
| Rank | Symbol | Return | Start | Final Value | Trades | Win Rate | Fees | Net | Max DD | Avg Hold | Refunds | Last Refund |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |
PLTR
|
+90.46% | $10,000 | $19,046 | 310 | 61% | - | +$9,046 | -11.2% | 4.9h | ✓ | - |
| 2 |
AMC
|
+72.00% | $10,000 | $17,200 | 322 | 65% | - | +$7,200 | -18.6% | 5.2h | ✓ | - |
| 3 |
BMY
|
+55.05% | $10,000 | $15,505 | 313 | 66% | - | +$5,505 | -10.5% | 5.6h | ✓ | - |
| 4 |
NVDA
|
+44.07% | $10,000 | $14,407 | 318 | 61% | - | +$4,407 | -11.5% | 4.4h | ✓ | - |
| 5 |
SOXL
|
+43.41% | $10,000 | $14,341 | 304 | 62% | - | +$4,341 | -43.9% | 5.2h | ✓ | - |
| 6 |
CRWD
|
+43.29% | $10,000 | $14,329 | 318 | 62% | - | +$4,329 | -12.6% | 6.7h | ✓ | - |
| 7 |
GS
|
+36.97% | $10,000 | $13,697 | 318 | 61% | - | +$3,697 | -3.9% | 6.1h | ✓ | - |
| 8 |
BLK
|
+36.01% | $10,000 | $13,601 | 313 | 67% | - | +$3,601 | -4.0% | 4.8h | ✓ | - |
| 9 |
ARM
|
+28.91% | $10,000 | $12,891 | 331 | 61% | - | +$2,891 | -16.8% | 6.3h | ✓ | - |
| 10 |
SCHW
|
+27.66% | $10,000 | $12,766 | 321 | 64% | - | +$2,766 | -7.0% | 5.7h | ✓ | - |
| 11 |
HOOD
|
+26.47% | $10,000 | $12,647 | 315 | 62% | - | +$2,647 | -26.1% | 6.6h | ✓ | - |
| 12 |
ISRG
|
+25.85% | $10,000 | $12,585 | 323 | 62% | - | +$2,585 | -17.0% | 4.5h | ✓ | - |
| 13 |
RBLX
|
+24.94% | $10,000 | $12,494 | 310 | 61% | - | +$2,494 | -18.1% | 7.7h | ✓ | - |
| 14 |
META
|
+24.32% | $10,000 | $12,432 | 324 | 59% | - | +$2,432 | -5.9% | 5.3h | ✓ | - |
| 15 |
NET
|
+23.85% | $10,000 | $12,385 | 317 | 56% | - | +$2,385 | -16.9% | 6.4h | ✓ | - |
| 16 |
MCD
|
+22.11% | $10,000 | $12,211 | 315 | 58% | - | +$2,211 | -4.1% | 5.4h | ✓ | - |
| 17 |
DKNG
|
+19.28% | $10,000 | $11,928 | 313 | 60% | - | +$1,928 | -14.0% | 5.1h | ✓ | - |
| 18 |
BRK-B
|
+19.04% | $10,000 | $11,904 | 320 | 64% | - | +$1,904 | -4.6% | 6.3h | ✓ | - |
| 19 |
MRK
|
+18.46% | $10,000 | $11,846 | 315 | 63% | - | +$1,846 | -8.0% | 4.8h | ✓ | - |
| 20 |
SNOW
|
+18.33% | $10,000 | $11,833 | 325 | 58% | - | +$1,833 | -17.7% | 6.3h | ✓ | - |
| 21 |
SLV
|
+18.21% | $10,000 | $11,821 | 312 | 64% | - | +$1,821 | -25.0% | 4.9h | ✓ | - |
| 22 |
VRTX
|
+17.54% | $10,000 | $11,754 | 319 | 61% | - | +$1,754 | -5.5% | 5.3h | ✓ | - |
| 23 |
AVGO
|
+16.77% | $10,000 | $11,677 | 316 | 59% | - | +$1,677 | -12.8% | 5.7h | ✓ | - |
| 24 |
C
|
+16.34% | $10,000 | $11,634 | 310 | 58% | - | +$1,634 | -6.0% | 5.3h | ✓ | - |
| 25 |
WMT
|
+16.08% | $10,000 | $11,608 | 306 | 64% | - | +$1,608 | -4.5% | 6.2h | ✓ | - |
| 26 |
MARA
|
+15.25% | $10,000 | $11,525 | 316 | 59% | - | +$1,525 | -29.5% | 6.1h | ✓ | - |
| 27 |
MU
|
+14.97% | $10,000 | $11,497 | 301 | 63% | - | +$1,497 | -23.5% | 4.9h | ✓ | - |
| 28 |
JNJ
|
+14.32% | $10,000 | $11,432 | 308 | 65% | - | +$1,432 | -5.7% | 5.0h | ✓ | - |
| 29 |
USO
|
+13.81% | $10,000 | $11,381 | 308 | 58% | - | +$1,381 | -11.5% | 5.6h | ✓ | - |
| 30 |
VXX
|
+13.63% | $10,000 | $11,363 | 310 | 60% | - | +$1,363 | -19.3% | 6.2h | ✓ | - |
| 31 |
CVX
|
+13.23% | $10,000 | $11,323 | 324 | 62% | - | +$1,323 | -5.5% | 6.1h | ✓ | - |
| 32 |
AAPL
|
+12.30% | $10,000 | $11,230 | 321 | 60% | - | +$1,230 | -13.3% | 6.8h | ✓ | - |
| 33 |
GOOGL
|
+11.67% | $10,000 | $11,167 | 312 | 62% | - | +$1,167 | -9.9% | 5.7h | ✓ | - |
| 34 |
AXP
|
+10.90% | $10,000 | $11,090 | 317 | 63% | - | +$1,090 | -12.7% | 4.9h | ✓ | - |
| 35 |
JPM
|
+10.46% | $10,000 | $11,046 | 314 | 61% | - | +$1,046 | -7.6% | 5.9h | ✓ | - |
| 36 |
XLK
|
+10.40% | $10,000 | $11,040 | 324 | 64% | - | +$1,040 | -11.6% | 6.8h | ✓ | - |
| 37 |
PG
|
+9.71% | $10,000 | $10,971 | 318 | 64% | - | +$971 | -7.0% | 6.1h | ✓ | - |
| 38 |
VOO
|
+9.62% | $10,000 | $10,962 | 312 | 63% | - | +$962 | -5.6% | 5.6h | ✓ | - |
| 39 |
NFLX
|
+9.58% | $10,000 | $10,958 | 325 | 61% | - | +$958 | -13.7% | 6.8h | ✓ | - |
| 40 |
AMGN
|
+9.38% | $10,000 | $10,938 | 319 | 62% | - | +$938 | -10.0% | 4.5h | ✓ | - |
| 41 |
AMZN
|
+9.25% | $10,000 | $10,925 | 318 | 57% | - | +$925 | -15.2% | 5.8h | ✓ | - |
| 42 |
ARKK
|
+9.13% | $10,000 | $10,913 | 318 | 60% | - | +$913 | -16.4% | 6.2h | ✓ | - |
| 43 |
REGN
|
+8.88% | $10,000 | $10,888 | 309 | 61% | - | +$888 | -13.4% | 6.7h | ✓ | - |
| 44 |
MS
|
+8.74% | $10,000 | $10,874 | 321 | 60% | - | +$874 | -9.7% | 6.1h | ✓ | - |
| 45 |
XOM
|
+8.43% | $10,000 | $10,843 | 324 | 63% | - | +$843 | -9.1% | 5.5h | ✓ | - |
| 46 |
XLF
|
+7.17% | $10,000 | $10,717 | 316 | 59% | - | +$717 | -5.4% | 6.9h | ✓ | - |
| 47 |
HD
|
+6.38% | $10,000 | $10,638 | 315 | 59% | - | +$638 | -5.1% | 3.8h | ✓ | - |
| 48 |
COST
|
+6.18% | $10,000 | $10,618 | 317 | 60% | - | +$618 | -7.2% | 5.7h | ✓ | - |
| 49 |
QQQ
|
+6.14% | $10,000 | $10,614 | 312 | 62% | - | +$614 | -4.4% | 6.1h | ✓ | - |
| 50 |
SPXU
|
+6.07% | $10,000 | $10,607 | 148 | 56% | - | +$607 | -19.1% | 10.6h | ✓ | - |
| 51 |
SPY
|
+5.91% | $10,000 | $10,591 | 307 | 64% | - | +$591 | -7.1% | 5.9h | ✓ | - |
| 52 |
MA
|
+5.39% | $10,000 | $10,539 | 315 | 62% | - | +$539 | -5.8% | 7.6h | ✓ | - |
| 53 |
PM
|
+5.10% | $10,000 | $10,510 | 309 | 61% | - | +$510 | -10.7% | 5.3h | ✓ | - |
| 54 |
KO
|
+4.74% | $10,000 | $10,474 | 307 | 60% | - | +$474 | -6.2% | 5.8h | ✓ | - |
| 55 |
V
|
+4.17% | $10,000 | $10,417 | 317 | 59% | - | +$417 | -5.0% | 6.8h | ✓ | - |
| 56 |
IBM
|
+4.12% | $10,000 | $10,412 | 317 | 60% | - | +$412 | -9.2% | 4.7h | ✓ | - |
| 57 |
CRM
|
+3.56% | $10,000 | $10,356 | 313 | 58% | - | +$356 | -9.2% | 8.0h | ✓ | - |
| 58 |
TQQQ
|
+2.64% | $10,000 | $10,264 | 316 | 61% | - | +$264 | -17.9% | 5.9h | ✓ | - |
| 59 |
TLT
|
+1.40% | $10,000 | $10,140 | 310 | 58% | - | +$140 | -6.8% | 5.3h | ✓ | - |
| 60 |
PFE
|
-0.22% | $10,000 | $9,978 | 321 | 60% | - | -$22 | -11.8% | 6.2h | ✓ | - |
| 61 |
BAC
|
-0.25% | $10,000 | $9,975 | 316 | 55% | - | -$25 | -7.2% | 6.8h | ✓ | - |
| 62 |
VTI
|
-0.45% | $10,000 | $9,955 | 309 | 57% | - | -$45 | -8.8% | 6.0h | ✓ | - |
| 63 |
PEP
|
-0.52% | $10,000 | $9,948 | 318 | 62% | - | -$52 | -12.9% | 6.3h | ✓ | - |
| 64 |
INTC
|
-0.57% | $10,000 | $9,943 | 324 | 56% | - | -$57 | -24.3% | 6.5h | ✓ | - |
| 65 |
TMO
|
-0.94% | $10,000 | $9,906 | 320 | 60% | - | -$94 | -13.7% | 5.2h | ✓ | - |
| 66 |
AMD
|
-1.02% | $10,000 | $9,898 | 321 | 60% | - | -$102 | -28.5% | 6.3h | ✓ | - |
| 67 |
SLB
|
-1.07% | $10,000 | $9,893 | 318 | 62% | - | -$107 | -18.4% | 6.7h | ✓ | - |
| 68 |
SOFI
|
-1.25% | $10,000 | $9,875 | 310 | 61% | - | -$125 | -26.0% | 5.5h | ✓ | - |
| 69 |
XLE
|
-1.84% | $10,000 | $9,816 | 314 | 57% | - | -$184 | -13.3% | 5.3h | ✓ | - |
| 70 |
GLD
|
-1.86% | $10,000 | $9,814 | 307 | 60% | - | -$186 | -7.6% | 5.1h | ✓ | - |
| 71 |
COIN
|
-2.05% | $10,000 | $9,795 | 309 | 58% | - | -$205 | -42.7% | 6.1h | ✓ | - |
| 72 |
LCID
|
-2.45% | $10,000 | $9,755 | 308 | 59% | - | -$245 | -30.7% | 5.2h | ✓ | - |
| 73 |
CSCO
|
-2.95% | $10,000 | $9,705 | 317 | 59% | - | -$295 | -10.7% | 7.5h | ✓ | - |
| 74 |
VZ
|
-3.04% | $10,000 | $9,696 | 309 | 60% | - | -$304 | -12.7% | 5.7h | ✓ | - |
| 75 |
PYPL
|
-3.52% | $10,000 | $9,648 | 293 | 60% | - | -$352 | -17.7% | 6.3h | ✓ | - |
| 76 |
COP
|
-3.65% | $10,000 | $9,635 | 317 | 56% | - | -$365 | -18.3% | 5.6h | ✓ | - |
| 77 |
GILD
|
-4.26% | $10,000 | $9,574 | 313 | 60% | - | -$426 | -18.5% | 6.6h | ✓ | - |
| 78 |
MSFT
|
-4.53% | $10,000 | $9,547 | 317 | 58% | - | -$453 | -10.0% | 4.8h | ✓ | - |
| 79 |
WFC
|
-4.73% | $10,000 | $9,527 | 316 | 61% | - | -$473 | -15.9% | 6.5h | ✓ | - |
| 80 |
RIOT
|
-5.43% | $10,000 | $9,457 | 310 | 58% | - | -$543 | -50.0% | 7.1h | ✓ | - |
| 81 |
UNH
|
-6.26% | $10,000 | $9,374 | 327 | 67% | - | -$626 | -22.2% | 5.8h | ✓ | - |
| 82 |
DIA
|
-6.66% | $10,000 | $9,334 | 311 | 57% | - | -$666 | -11.0% | 5.4h | ✓ | - |
| 83 |
DIS
|
-7.05% | $10,000 | $9,295 | 328 | 57% | - | -$705 | -21.3% | 6.2h | ✓ | - |
| 84 |
IWM
|
-7.23% | $10,000 | $9,277 | 308 | 56% | - | -$723 | -14.5% | 7.0h | ✓ | - |
| 85 |
CMCSA
|
-7.97% | $10,000 | $9,203 | 318 | 61% | - | -$797 | -19.7% | 6.3h | ✓ | - |
| 86 |
TSLA
|
-8.35% | $10,000 | $9,165 | 311 | 58% | - | -$835 | -25.6% | 5.0h | ✓ | - |
| 87 |
NIO
|
-9.35% | $10,000 | $9,065 | 309 | 59% | - | -$935 | -30.0% | 6.6h | ✓ | - |
| 88 |
PANW
|
-9.48% | $10,000 | $9,052 | 314 | 56% | - | -$948 | -24.6% | 6.9h | ✓ | - |
| 89 |
BIIB
|
-9.63% | $10,000 | $9,037 | 317 | 66% | - | -$963 | -26.8% | 4.7h | ✓ | - |
| 90 |
ABBV
|
-9.79% | $10,000 | $9,021 | 310 | 64% | - | -$979 | -17.6% | 6.6h | ✓ | - |
| 91 |
MDT
|
-10.07% | $10,000 | $8,993 | 313 | 57% | - | -$1,007 | -13.7% | 4.9h | ✓ | - |
| 92 |
ACN
|
-10.41% | $10,000 | $8,959 | 325 | 59% | - | -$1,041 | -15.0% | 6.8h | ✓ | - |
| 93 |
ORCL
|
-11.08% | $10,000 | $8,892 | 313 | 54% | - | -$1,108 | -27.9% | 6.9h | ✓ | - |
| 94 |
UVXY
|
-11.14% | $10,000 | $8,886 | 309 | 61% | - | -$1,114 | -33.5% | 6.8h | ✓ | - |
| 95 |
ADBE
|
-14.06% | $10,000 | $8,594 | 321 | 57% | - | -$1,406 | -18.6% | 6.8h | ✓ | - |
| 96 |
OXY
|
-14.30% | $10,000 | $8,570 | 315 | 58% | - | -$1,430 | -17.0% | 6.1h | ✓ | - |
| 97 |
LLY
|
-14.72% | $10,000 | $8,528 | 317 | 62% | - | -$1,472 | -24.9% | 5.9h | ✓ | - |
| 98 |
SMCI
|
-18.89% | $10,000 | $8,111 | 317 | 63% | - | -$1,889 | -55.7% | 5.3h | ✓ | - |
| 99 |
RIVN
|
-26.26% | $10,000 | $7,374 | 310 | 57% | - | -$2,626 | -32.4% | 7.7h | ✓ | - |
| 100 |
GME
|
-26.99% | $10,000 | $7,301 | 315 | 61% | - | -$2,699 | -44.4% | 6.8h | ✓ | - |
| 101 |
MRNA
|
-36.86% | $10,000 | $6,314 | 308 | 58% | - | -$3,686 | -31.7% | 6.1h | ✓ | - |
| 102 |
SQQQ
|
-38.54% | $10,000 | $6,146 | 311 | 54% | - | -$3,854 | -42.9% | 6.3h | ✓ | - |
👤 Personality
Speaks in equations. Finds human behavior predictable and slightly disappointing. Gets genuinely excited about standard deviations.