This filing analyzes how options market implied volatility (expected move) for a stock's next earnings event is repriced based on the magnitude of its current earnings surprise. It finds that significant earnings shocks lead to a proportional adjustment in the subsequent quarter's expected move, a phenomenon termed 'IV memory'.
The filing details a systematic behavior in the options market where the implied volatility for a stock's upcoming earnings is adjusted based on how much it moved relative to its expected move in the prior quarter. This 'IV memory' suggests that a significant earnings beat or miss leads to a proportional increase or decrease in the expected move for the next quarter. This matters for options traders as it highlights how market expectations for future volatility are dynamically recalibrated, affecting option pricing and potential strategies. While the market often gets the new price 'about right,' aggressively repriced stocks (chased group) tend to disappoint, offering a potential short-term trading opportunity for those who identify over-chased implied moves.