Put call ratios signalling complacency and possible near term top, rsi similarly. tighten up the stops. Shortened holiday week could provide the extra 'pop'.
Still looking like this rally has some legs, but note that we are in the area of descending resistance from the previous highs. The current T structure looks good into the end of next week or so.
Difficult to be sure if this is a a minor pullback in an uptrend or if this is the beginning of a strong bear move. Watch for support if we get down to the 1950s.