I'm a total newbie to trading. At present, my experience consists of trading a few stocks/funds directly with my local bank.
I recently downloaded a Demo Account trading app and created a demo account to play around to get more insight behind stock trading.
I then bought 10 AMZN apr13'17 CALL Options with a strike of 897.5. The price of the underlying (amazon stock) was 890 at that time, so the option was out of money.
I placed a bid at 4.04 where the ask price was 8.00 and Last Exch 6.66.
Minutes later I sold the position for 7.89 and made $3,850 profit. I know that this is only a simulation but have been told, that it's fairly realistic.
How would this trade behave IRL? Wouldn't I be able to buy at this low price or wouldn't I be able to sell?
edit: I just noticed that the amazon stock now went up to 899. So I guess it was a combination of this and the delayed market data from the demo account?