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Although with respect to those session where the FED’s Permanent Open Market Operation occurred no significant end-of-day edge will be provided, FED’s Permanent Open Market Operations accumulated ( e.g. at least 9 during the last 20 sessions) historically had remarkable and statistically significant positive implications with respect to the market’s short- (e.g. at least one higher close over the course of the then following 10 sessions) and intermediate term performance looking 1, 2 and 3 month ahead (trading higher 3 month later on all of those 144 potential occurrences/trades).
This could very well be a reason for the market’s above-average month-to-date performance despite a couple of (negative) seasonalites (e.g. the historical negative week immediately following September’s triple witching) and setups (e.g. the down-day immediately following the Labor Day exchange holiday).