# Difference between IOC and FOK orders

I am trying to understand the difference between FOK and IOC orders. If I send a market FOK or IOC order to sell 100 shares of StockX - what would happen if the orderbook looked like this?

SELL SIDE OF ORDER BOOK
50 @ 300
25 @ 301
100 @ 302

• 1. You have to specify the price in IOC order, although this can depend on the trading venue. 2. If you want to sell, you should be more concerned about the bid side of the orderbook. Also, it seems to me that the title of question is misleading compared to the question you are asking Feb 3 at 16:57
• (I suppose it is matter of taste, but I find it confusing to see a limit order book with the prices increasing downward. I feel I should turn my computer upside down ;) to see what is going on). Feb 3 at 17:15