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AI trading
I gave Grok Bot $13,500 of real money. It's up 5.20% vs the S&P 500's 0.64%, and two options trades, PacBio and Schrödinger, made more than the account is up.
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Options trading
Three option positions that lost $7,924, each drawn on the underlying's real price line with the entry, the exit, and what doubling down cost.
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Options trading
Three 2026 option trades that made $12,748, each drawn on the underlying's real price line with the entry, the exit, and the capital actually at risk.
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AI trading
A $25K AI trading portfolio rose, fell and prompted new rules. See the matched backtests, 10,000 Monte Carlo paths and historical-test limits.
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Algorithmic trading
How Parquet chunk statistics speed up options backtests, and how one copy on Tigris replaced seven duplicate disks and cut a $230 monthly bill to $34.