Groysberg, Boris, Paul M. Healy, and Craig James Chapman. "Buy-Side vs. Sell-Side Analysts' Earnings Forecasts ." Financial Analysts Journal 64, no. 4 (July–August 2008): 25 – 39.

Reportedly, the sell-side are going flat, not shorting or blocking and instead sitting in a bid to protect their book. Simultaneously, on the buy-side traders are trying ... unavoidable difference in ...