The study looked at how easy it is to trade options using data from Ivy DB's OptionMetrics. They found that different measures of how easy it is to trade options are similar across different options. This similarity remains even when you consider how easy it is to trade the stocks the options are based on. Smaller companies and companies with more price changes have even more similar trading conditions for their options. Also, knowing information before others is more important for trading options than having too many options to trade. Lastly, the ease of trading options is connected to how the stock market is doing, with options reacting differently to good and bad stock market news.