You didn't know SGH was going to surge yesterday though!
It was the first of the month, so they'd be buying at Fridays close price.
Maybe it's a good idea to close the weekend trading options, but it seems relatively harmless, it's only the same as people placing a buy on a Friday after market and being picked up at 4.32pm.
Helps our week day workers to join the comp, as it's a lot of investors as well as traders.
