REITs have been tapping equity markets and are poised to benefit from the turmoil in the commercial real estate market (via WSJ):
REITs are poised once again to pick up the pieces from the commercial-property bust. This year, they have tapped the stock market for nearly $15 billion in new equity and, this month have raised [...]

Short interest rose in the first half of August:

SAN FRANCISCO (MarketWatch) — Short interest on the New York Stock Exchange and Nasdaq rose in early August, a period that nonetheless saw an increase in U.S. stock prices, the exchanges said late Tuesday.
Short interest on the New York Stock Exchange advanced in the first half of [...]

The last two days of market action are quite disappointing after the breakout last week. Both days have seen shots higher in the morning and closes near the lows. In candlestick charting those are known as shooting star days and they are generally bearish.