End of Month Trading Strategy in S&P 500 – Update

Last Updated on August 26, 2021 by Oddmund Groette

In July 2012 I published a strategy about an end-of-month strategy in the S&P 500.

Let’s make an update and see how it has performed since then:

End of Month Trading Strategy

In plain English the strategy is like this:

  • Entry: Day 29, 30, or 31 of the month must be negative (this is calendar day – not trading days). Then enter at the close.
  • Exit: Two successive positive closes in a row OR SPY hits a 1% target. (no stops). Exit at the close.

Here are the results from 2005 until today:

The average per fill is 0.75% per fill. However, the equity chart is flattening lately, and 2014 was barely positive.


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