Do Tradovate latency issues affect Market Replay data?

General Discussions
1

Do Tradovate latency issues affect Market Replay? Also, how accurate is Market Replay vs Live trading? Do we need to use slower speeds?

Today I compared Market Replay data at 1x to what I traded with using live data on a Tradovate account and the results aren’t even close. Market replay shows I would have made over $500 where on the live data/demo account, it lost over $750. Tradovate reported having issues with this and this was my first time comparing Live vs Market Replay so I wanted to ask. Thanks.

This was on Discord:

:loudspeaker: RESOLVED: Tradovate Elevated Latency Reports 2/20/2026

We were notified of temporary elevated latency of order fills the morning of Feb 20, 2026. Tradovate confirmed the outage period was from 10:01 AM ET to 10:07 AM ET.

For affected Tradovate accounts: - Net losses during the window were restored. - Peak balance (maxNetLiq) was reset to its pre-incident value. - If liquidated while in profit, profits were preserved and account status restored. - Any PA violations related to this incident were removed. All restorations have been completed automatically for all impacted accounts. No ticket to support is required."

2

Market replay is probably the best you are going to get with testing since it is supposed to replay every tick in order. I’m not sure why your trades in Tradovate are significantly different. If you enter exactly at the same time I would imagine they would be similar.

3

The trades placed in NT8 live and Traodvate/Tradezella match. It’s those trades that aren’t matching with the market Replay data from today that’s the issue. They aren’t even close.

So I’m wondering if the trades I actually placed are flawed because of their latency issues and market replay can’t emulate that.

Also, is there a preferred speed to use it?

4

I does it not match in market replay if you are placing the trade exactly the same in market replay as live and Tradovate? You previously mentioned you used 1x. I’m assuming the normal speed. If you are asking about preferred speed, I’m assuming you are not placing it exactly. Share the trade timestamps you entered on all the systems if the market replay is so wrong. You can see those trades and when they were placed in NT.