The day started well (for bulls) with some early follow through upside, but it wasn't long until bears were trying their hand again.
The S&P may have registered a channel breakdown. There was a close below channel support, although the day's low did not violate the low from yesterday. There was a marked rise in volume, confirming distribution.
There was also a distribution day for the NASDAQ Composite, but there was no support violation. The index continues to edge a relative advantage over the S&P, and maintains support of its 50-day MA. Bulls still have the edge here.
The Russell 2000 edged a higher close, but the retracement of early gains suggests the retest of the 1,131 swing low isn't done yet. However, it's near enough to the 200-day MA to suggest there is still support available, and buyers may still get a low risk bargain - although one solid sell off day would probably be enough to kill the long play.
The odd index out was the Nasdaq 100: minor losses on low volume, with room to nearest support at the 20-day MA. Nothing bearish here.