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how much time will it decay between...?
Let's say the exchange market's open time is 9:00 am and the close time is 3:00 pm in every trading day.I am wondering how can I view the time decay in the following case.1. from Monday @3:00 pm to next Tuesday @9:00 am2. from Friday close to Monday open when I short theta and my day calculation is based on trading day, how should I view the time decay affects my position between the close time and the next open time?