FullAutoTrading, Thanks for pointing out this thread which looks like something Iâd be interested in. Iâll have a good read of it tomorrow â¦
Quote from maninmoon:
Abattia,
That's what I am trying to work out!
And I want to see if anyone who has developed a fill-engine has had similar results once running live.
OK, thanks maninmoon. Then Iâll re-phrase my own question:
Firstly, by âfill engineâ I mean an algorithm used in simulations (or backtests) to simulate whether or not a limit order placed at a certain time, price and position size gets filled.
Is this what you both mean, too? If it isnât what you meant, please ignore the rest of this post, and I shall disappear silently back into that dark place from which I have come ...
And I understood maninmoon also to be asking whether those with experience using or developing such âfill enginesâ found good agreement between fills that actually occurred in âliveâ trading and those that the âfill engineâ simulated when run over historical data corresponding to the same period. Is that correct?
My own questions were
1) âWhat rules does your fill engine use to determine whether a given limit order fills or not?â and
2) âWhat market data is required for your fill engine to operate?â