Regarding your question on the other Thread about the closing value for ETFs being different in DAS and ToS. Good catch, I did notice this myself and that is the reason I have the manual overide for the values as an option. As for the reason for the difference, I'm not too sure. First, I'm not aware of the code that DAS uses for closing value and second I'm not entirely sure how ToS does it either. Though, I would guess that it would have something to do with how they display the price of the equity when the spread is larger at illiquid periods. I remember reading that after hour trading is actually somewhat different per broker. DAS is most commonly used with IBKR and ToS uses TDA. The way that After hour trading is conducted is not through exchanges like in NYSE exchange during trading hours but through Electronic Comms Networks. If the two brokers have a difference in the ECN, then one can expect a different prices of quotes after hours. This is just a wild theory.... The difference is probably exasperated for ETFs because they trade 24hrs.