From Seeking Alpha:

Stock markets might just have finished a particularly strong quarter - with the S&P 500 Index gaining 15.2% for its best quarter since 1998, the MSCI World Index rising by 19.7% and the MSCI Emerging Markets Index adding 33.6% - but started to look tired last month, and July is also off to a shaky start.

Volume has been declining on rally days and expanding on declining days, which can be construed as bearish action. On July 2, Lowry’s Buying Power Index closed one point below where the Index was at the March 9 stock market lows, i.e. Buying Power is now weaker than it was at the early March bottom.

Read full article...

More short-selling ideas:

The world's most expensive stock index will plunge 50%

Learn the 2 stocks short-selling great Doug Kass is targeting

Jeff Clark: "Every smart trader I know is massively short the stock market"

Sponsored link: Trade the downturn with master short seller Jeff Clark