I've been working on an option strategy which requires quick buying or selling at the open or close of the market of (at least) 100 TSLA option strangles (2.5 or 5 OTM with 0.5 to 1.5 weeks until expiry).
The problem with my current trading app (IB) is that placing orders is not a fast process. National law requires that it first has to show the impact on margin before I can confirm the order, even if no margin is required. It takes the app 5-6 seconds to make that calculation, which means valuable time is lost before I can confirm the order.
When the quotes move around a lot it means I'm often chasing the market and my orders don't always get executed, especially when I choose the middle quote. My orders would immediately execute if I choose 'best' or 'market' instead of 'limit', but I'm afraid I will get a very bad price, even though the TSLA options market is very liquid and my strikes and dates are popular. Does anyone have experience with 'best' or 'market' orders with TSLA options? Is it possible to get screwed with a very low price or will you always get a normal price?
And what happens if I set a price which is a bit lower than I want (when selling)? Will it execute for that low price or is it possible that I get a better price anyway?
Thanks in advance for any advice.