I see that the Market Open was 16.35 which was the ask price at 0930. I could be wrong. Anyway, I am asking IB, and they are investigating. Apparently, they disregarded my instructions and added a dollar and a few cents to my limit. I have no idea why that could have happened.
That makes no sense, it has to be your settings that messed the order up. Never happened once to me in 10 years of trading with IB. NYSE open of TWTR was 16.32, previous trade was 16.34 and last trade before 9:30 was 16.35, in none of the cases it was an uptick.
I don't quite understand what you discussed here about auction order. Wondering during regular trading time between 9:30am to 4:00pm, if I route to ARCA or NYSE or BATS to add liquidity, will I earn ECN rebate? If I just scalp BAC, can I do through IB instead of prop firms? I know if scalp BAC in a prop firm, the total cost(including commission, sec fee, ECN fee, etc.) for a round trade of 100 share could be 20 cents if route to EDGA to add liquility. If route to ARCA then total I could earn 40 cents of ECN rebate. That's why 1 cent profit per share is acceptable. Have any idea if I trade through IB, can I have similar low cost for scalping?
This thread is only about opening auctions, not continuous trading. I don't look at rebates that carefully but I've had negative commissions routing to ISLAND and BATS but not to ARCA on NASDAQ listed stuff.