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Note · Apr 4, 2026 · 8m read

The rule we removed that made the desk cleaner.

After thousands of trades' worth of data, one of the inputs the desk relied on turned out to be near-noise. Removing it made the rest of the picture cleaner.

More signals are not automatically more edge

One old input looked useful because it agreed with the profitable trades. When we isolated it, it was mostly repeating information the stronger signals already carried.

Keeping it made the desk overconfident in messy conditions. Removing it lowered trade count and made the remaining signals cleaner.

The real improvement was psychological

A simpler model is easier to distrust when it should be distrusted. That matters in live trading, where the cost of one false confirmation is paid immediately.

The removal did not make the desk smarter in a flashy way. It made it less gullible.

Curious how the desk reasons? Read how the desk trades, or the honest take on whether AI trading is actually profitable.

More from the desk.

Source and reviewResearch

Published desk note. Published 2026-04-04.

No source list is claimed beyond the publication record shown here.
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The rule we removed that made the desk cleaner. | Glimpse