Asymmetric Daily RSI(2) Mean-Reversion Strategy for the S&P 500

Summary

This post outlines a daily long-short strategy for the S&P 500 using a two-period RSI. It opens a long position when RSI falls below a parameter and a short position when RSI exceeds a mirrored threshold. Long exits require RSI to recover to a separate threshold and a down-close condition; short exits use an RSI recovery threshold. The author describes the design as intentionally asymmetric and says it uses two optimized parameters, but supplies no numerical results, backtest details, or evidence to assess the claimed long history of stable performance.

The rules are a compact example of short-horizon mean reversion: extreme RSI readings trigger positions, with different entry and exit levels for the two directions. The post gives no discussion of position sizing beyond a fixed contract count, transaction costs, slippage, market regime sensitivity, or out-of-sample testing. Parameter optimization and the claim of long-term stability therefore need independent validation before the approach can be evaluated as a tradable strategy.

Key ideas

• The strategy uses daily RSI(2) thresholds to enter long and short S&P 500 positions.
• Long and short entries and exits use asymmetric thresholds.
• The post reports two optimized parameters but gives no detailed performance evidence or test methodology.
• Costs, slippage, sizing beyond a fixed contract amount, and out-of-sample robustness are not discussed.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.