: Buy-side "buy" recommendations often result in lower annual market-adjusted returns (2.3%) compared to sell-side ratings (8.2%), though these differences are partly due to the types of firms covered.
Analyst believes the stock should be sold or will underperform. stock buy sell ratings
Statistically rare; often carries "scarcity value" and can have a larger market impact. Summary of Performance Findings : Buy-side "buy" recommendations often result in lower
: On average, recommendations do not impose significant "abnormal returns" during the event window, suggesting markets are relatively efficient. The Stock Selection and Performance of Buy-Side Analysts
Here are several full research papers and detailed studies focusing on the effectiveness, distribution, and performance of stock "buy," "hold," and "sell" ratings. Key Research Papers on Stock Ratings
: Historically, "buy" recommendations were overwhelmingly more common (reaching 74% in mid-2000) than "sell" ratings (only 2%), leading to questions about analyst objectivity. The Stock Selection and Performance of Buy-Side Analysts
: Compares the performance of ratings from buy-side analysts (who work for institutional investors) vs. sell-side analysts (who work for brokerage firms).