Traders are preparing for bigger swings than usual in shares of companies including Cognizant and Amphenol after their earnings, while they’re expecting smaller moves in Garmin and Carvana. Here’s a list of S&P 500 members reporting on April 29 for which the options market is over- or underpricing volatility relative to fluctuations on sessions following past results:

Here’s how the implied earnings-day moves of these companies fared in past earnings:

• Overpriced: ADP (7/8), Align Technology (6/8), Allstate (5/8), American Water (8/8), Amphenol (5/8), Biogen (7/8), Cognizant (8/8), Entergy (5/8), Generac (5/8), Humana (6/8), O’Reilly Automotive (7/8), VICI Properties (8/8) …