Oct 8, 2026
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A famous 2017 paper says cutting exposure after wild months boosts risk-adjusted returns. I tested it on 32 years of SPY: the crash protection is real, the extra return mostly isn't.
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Trading
Sep 3, 2025
Algorithmic Trading Strategies
Sep 7, 2025
Sep 4, 2025
18 min read
A 2025 paper says LLaMA out-forecasts ARIMA. I rebuilt it on 10 assets: ARIMA won all 10, and the news prompt was seeing the day it was predicting.
Permutation entropy claims to tell you when the market is orderly enough to trade. I tested it on 10 ETFs over 20 years, three different ways.
An EMNLP 2025 survey mapped how LLM agents are used across finance. I built the full 5-agent pipeline on real company filings — and the failure mode the paper predicts showed up as a bug in my own output.
We rebuilt the Kolm/Turiel/Westray order-flow paper on 10 real Nasdaq stocks. Most of it held up exactly.
A real paper on deep learning and order-book predictability, why retail traders structurally can't replicate it, and the honest retail-feasible test I ran instead