It looks like you if you place an order, you get the price that it was at that time. Since the data is delayed, the price is delayed. The market fill was good on one order and I'm waiting to see about a limit order.
I learned the hard way about delayed data. I had an ING account for retirement, and started learning about options. I couldn't figure out why I wasn't getting fills at the price that the shown on Yahoo Finance.... what an idiot I was, but I had no idea that there was such a thing as delayed data
Ok, changed the delay to 1 minute and fixed the outrageous commission fees. Now they are $5.99 for Market and $9.99 for Limit orders. This will work much better. Rankings are updated every morning so check in to see where you stand.
I am taking caution in today's market. I will probably wait to see which direction things go first before I dip my toes. Even then, I do not plan on keeping the stock long as things could change at any time for just about any reason. I expect lots of turbulence today.