Minimum ordersize fluctuates during day?

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10/27/2020 at 4:26 PM #148682 quote

Paul
Participant

Master

an obervastion on wallstreet 2$ in demo.

I had a code running with positionsize 0.5 in profit. Then suddenly orders are getting rejected and after 3 times the strategy is stopped. I restarted the strategy but now orders are getting rejected because the minimum requirement is positionsize 1 suddenly.

Screenshot-2020-10-27-at-16.17.07.jpg Screenshot-2020-10-27-at-16.21.32.jpg

10/27/2020 at 4:52 PM #148685 quote

Nicolas
Keymaster

Master

Never heard of that. So the strategy that was already running with 0.5 contract as a position size suddenly stop with this error?

10/27/2020 at 5:09 PM #148696 quote

robertogozzi
Moderator

Master

It looks like minimum distance requirements for pending orders, which can be a few pips normally, up to 300 at night or when there’s high volatility.

10/27/2020 at 5:11 PM #148697 quote

Paul
Participant

Master

yes exactly. I restarted it once or twice since but hasn’t taken new trades since 16:05 (got email) it stopped again. IG on their website indicated that the minimum-size was 0.5

I copied&paste the live demo code directly into an empty strategy to compare.

(sorry i posted that screenshot on 1€ instead of 2$ but for the backtest doesn’t matter)

Screenshot-2020-10-27-at-17.08.10-scaled.jpg Screenshot-2020-10-27-at-17.00.11.jpg

10/27/2020 at 5:17 PM #148701 quote

GraHal
Participant

Master

I’ve had a few over the past few weeks (running fine for many months) stopped with the Rejection message … Position Size below minimum etc.

10/28/2020 at 9:51 AM #148762 quote

Nicolas
Keymaster

Master

Ok, thanks. I will try to know more and let you know if it is a known issue and why it can happen.

10/28/2020 at 11:30 AM #148770 quote

GraHal
Participant

Master

I assumed that IG are changing min position size?

10/28/2020 at 10:58 PM #148839 quote

XORANDNOT
Participant

Senior

It happened to me a year ago when I started a DAX 1€ live trading system on Sunday. On Monday morning, it was halted because the position size (0.5 contracts) was too low (minimum size was 1 contract at this time). I called IG and they said that something may have changed over the week-end. Later the same day, the trading system worked well again with 0.5 contracts after a restart.

Since this day, I start all my systems with position sizes below 1 contract on Monday morning after 8 a.m. and the problem has never occured again.
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