We examine how options trading affects voluntary corporate disclosure to shed light on whether managers withhold disclosure due to their potential learning from the options market. We find that options trading reduces the likelihood and frequency of management earnings forecasts, suggesting that firms that have active options trading on their stock make fewer voluntary disclosures. This finding is in accordance with the theoretical prediction that managers strategically reduce disclosure to avoid crowding out informed trading, which can give them informative feedback for their decision-making. In support of the managerial learning channel, we document a real effect of reduced disclosure: when managers disclose less, options trading has a stronger positive effect on firm investment efficiency. The more pronounced effect of options trading on management earnings forecasts when the need for managerial learning is higher further supports the learning channel.