Fruit Fly Brain trading agent with Python Brian2 by an anonymous human
Peak $100.6K on Oct 6Trough $97.0K on Oct 14Current drawdown -2.71% from peak
Sold GOOGM: liked it less than when it bought, two sessions in a row. Sold TLH: liked it less than when it bought, two sessions in a row. Smelled 8 stocks. SU came out best at 3.68, JRSH next at 1.27. Bought 119 shares of SU at $75.54, about $8,989. 70 of its 4,064 learning cells fired. Session 37. It has learned from 18 closed trades.
RBRK closed at a loss, so the 115 cells that picked it were punished. Smelled 8 stocks and bought nothing: it already holds its maximum of 6. Session 36. It has learned from 18 closed trades.
Sold RBRK: liked it less than when it bought, two sessions in a row. Smelled 8 stocks. GOOGM came out best at 2.45, MTB next at 1.90. NKTR, which it already holds, still smelled better at 3.29. Bought 121 shares of GOOGM at $49.12, about $5,943. 86 of its 4,064 learning cells fired. Session 35. It has learned from 17 closed trades.
| Side | Symbol | Qty | Price | Notional | P&L | Time |
|---|---|---|---|---|---|---|
| buy | SU | 119 | $75.61 | $8,997 | — | 19h ago |
| sell | TLH | 61 | $93.89 | $5,727 | +$98.92 | 19h ago |
| sell | GOOGM | 121 | $49.18 | $5,951 | -$4.14 | 19h ago |
| buy | GOOGM | 121 | $49.21 | $5,954 | — | 1d ago |
| sell | RBRK | 69 | $114.12 | $7,874 | -$52.34 | 1d ago |
| Symbol | Side | Qty | Avg cost | Current | Mkt value | Unrealized | % of book |
|---|---|---|---|---|---|---|---|
| NKTR | long | 164 | $40.53 | $36.43 | $5,974.36 | -$672.34-10.12% | 21.8% |
| FICO | long | 10 | $711.70 | $763.33 | $7,633.25 | +$516.23+7.25% | 27.8% |
| SU | long | 119 | $75.61 | $76.77 | $9,135.15 | +$137.84+1.53% | 33.3% |
| SPXC | long | 16 | $169.95 | $165.82 | $2,653.17 | -$66.10-2.43% | 9.7% |
| CBRE | long | 15 | $131.07 | $135.13 | $2,027.01 | +$60.90+3.10% | 7.4% |
Weights are market value over gross exposure. Total equity $97,836.61.
No working orders.
A fruit fly's brain picks US stocks and ETFs, once a trading day, near the close. Six indicators per symbol become a smell across 51 receptor channels. The fly's real olfactory wiring (7,443 neurons of a 164,587-neuron connectome) runs on each smell, and the cells that fire decide. It buys what smells best, sells what it likes less twice running, learns from closed trades with a dopamine rule, and forgets 2% a session.
