Buying power explanation?
Edit: looks like Questrade is having errors with buying power.
I've had a Questrade account for 10+ years and still can't figure this out.
For example, yesterday I had -$1,400 buying power. My stocks had an open P&L of +$3,000 at market close and by the time after hour trading was finished at 8pm, it was +$3,500.
This morning my open P&L went up a further +$500, yet my buying power is now only -$1,375.
How could an increase in +$4,000 only change my buying power by +$25?
I understand different stocks have different margin ratios, etc. but there's just no way to predict how margin will change.