First day testing out my breadth algo

jtm_ind · 2026-05-27T20:50:59+00:00

=== SUMMARY === - The author is testing a breadth-based algorithm for SPY using a 5-minute EMA to time entries/exits, and shares first-day results (19 trades, -0.08% return, 31.6% win rate). - The thesis is that market breadth across the S&P 500 can drive short-term signals, but execution delays and commissions need to be accounted for. - Quality assessment: This is a preliminary backtest or simulation log, not rigorous DD—more of a development update with limited sample size and no statistical validation. === SENTIMENT === NEUTRAL === TRADE IDEAS === No actionable trade ideas in this post.

u/jtm_ind · Reddit — r/algotrading · May 27, 2026 at 20:50 · ⬆ 20 pts · 💬 16 comments | View on Reddit ↗

AI Summary

Summary

The author is testing a breadth-based algorithm for SPY using a 5-minute EMA to time entries/exits, and shares first-day results (19 trades, -0.08% return, 31.6% win rate).
The thesis is that market breadth across the S&P 500 can drive short-term signals, but execution delays and commissions need to be accounted for.
Quality assessment: This is a preliminary backtest or simulation log, not rigorous DD—more of a development update with limited sample size and no statistical validation.

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