S&P 500 Hourly Uptrend Getting Extended

S&P 500 traded down today, in what could be a sign that the uptrend on the hourly chart is ending. We have completed 9 waves in the current uptrend (based on SPXUSD) -- anything beyond 5 waves raises the probability of the trend reversing. Also, momentum has come down significantly, as signaled by a declining MACD. Note, too, the existence of nearby resistance at a round number, namely the 2800 level.

While mindful that the trend remains up on the hourly chart, I'll be looking for opportunities to short on rallies.