JG46

Query from a newbie! I Opened a position on ARM Holdings on 19/02/24 at 16:45 and straight away I was showing a £113 loss. But there seemed to be no candles being generated and the loss figure didn't alter. I eventually Closed the position at 19:42 and the loss figure hadn't changed. I then noticed that the full title of the position was showing as "ARM Holdings PLC - ADR MAR-24". Am I correct in now realising that the positioned I Opened was not like the FX markets in that they are trading most of the time, but would be sorted out on 1st March 24? Thanks.