Thursday marked the 2nd day in a row that SPY posted an outside day. (An outside day is a day where the security or index makes a higher high and a lower low than the day before.) It’s quite unusual to see 2 consecutive outside days. I last examined back-to-back outside days for SPY in the 5/23/13 subscriber letter. I have updated that study below.

The numbers look very impressive.

It is also worth noting that this pattern has also done well with QQQ in the past.