What the short interest surge may really signal By: CNBC.com News February 28, 2014 at 11:56 AM EST With stocks near all-time highs, short interest reached the highest level in 20 months, but some investors are seeing the trend as a bullish sign. Read More >> Related Stocks: Apple Coca-Cola Enterprises D.R.Horton Lennar Corp Sentinelone Inc Cl A United States Steel Corp