Historical Data vs. Market Replay

[BernWillChris]

Hi,

After reading around the net, I was unable to determine any reason why Market Replay data is better for me in back-testing my strategies in FOREX. My understanding is that historical data does not include Level II, which according to about.com and other sources, is the information that provides market depth information such as highest bid prices, bid sizes, lowest bid prices, ask sizes, and more. That kind of information maybe useful when trading instruments outside of forex. Is my assessment correct? If so, that would simply allow me to just use the historical data since it is easier on y'all servers, for what I heard. And it simply easier to download as well.

Thanks for any replies.

[NinjaTrader_PatrickH]

Hello BernWillChris,

Thank you for your post.

The view on the importance of Level II can differ. Simply put Market Replay allows you to replay the market as in real-time. If you would prefer to study the charts on historical you can do that as well with historical data.