Quote from max401:
I believe if you want to purchase shares in the pre or post market, you have to buy the Ask, period.
Let me rephrase that, you can only trade with a limit order which if the issue has a lot of buying pressure it's not going to be readily filled if its below the Ask anyway, but it is a Limit order that is required.Quote from JORGE:
Not sure who you use, but you might want to look into another broker. I have never heard of only being able to trade off the bid and ask in the AH.