Daily Trading Edge #21
Instrument/asset
S&P 500 (SPY)
Trading rules
The trading rules of the edge read like this (please also backtest yourself – you might find a way to improve it):
- Buy at the close of the last trading day of the month.
Results
Trading performance if we exit after N-days since SPY’s inception in 1993:

Equity curve if exit after 3 trading days:

Improved edge?
If momentum is strong and the close is higher than 22 trading days ago (about one month) we get a slightly better performance:

