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Date/Time: Mon, 24 Feb 2025 06:37:25 +0000



Post From: From TT: We are currently investigating order routing issues for CME

[2021-02-17 00:50:55]
User816220 - Posts: 80
I haven't traded at all since early morning on 2/15. I should have had no open orders or positions since then.

Looking at Sierra's logs from 2/16, it looks like AMP's auto-liquidator managed to open and close two positions on my behalf. Both were for losses.

09:57 - A flurry of cancelled and restated orders shows up in the log
10:00 - CL and ES positions updated to quantity 1 each
11:51 - Two sell orders for CL and ES, qty 1 each, from SenderSubID: AMPRISK1 are filled
11:51 - Positions updated to quantity 0
15:04 - Sierra reports overfills for CL and ES, new position is -1 each
15:05 - Two buy orders for CL and ES, qty 1 each, from SenderSubID: AMPRISK1 are filled
15:05 - Positions updated to quantity 0

The orders at 11:51 and 15:05 have this in the OrderActionSource:

SC Futures Order Routing/Data order update (Order update). Info: TT order update (New). Text: Order Added by AutoLiquidation | ExchID: xxx | SenderSubID: AMPRISK1 | New order originated from external service | New order originated from external service

The original phantom orders from 02/15 only had a:
- ServiceOrderID
- FillExecutionServiceID

By contrast, the AMPRISK1 orders have an:
- InternalOrderID
- ServiceOrderID
- FillExecutionServiceID
- ExchangeOrderID

So I'm guessing that AMP's auto-liquidator really did send those orders and get those fills.