I just tried IGMarket, I wanted to sell one $20 contract on Nasdaq 100 as Apple could make it drop.
i place the trade outside of the market hours it was pretty flat, not much volatility, got one sell at 2292 with stop at 2322.
magically just after my trade (5:03) the stop is hit 2323 and get back to 2292. see the graph attached.
look like they have stolen my cash, insnt it
very bad first experience with them