Why some brokers not update buy power real time ?

From fidelity - ``trade buying power remains fixed and is based on balances from the previous day. It cannot be increased by selling previously held positions``

 

We do the same. Wedbush sets Day Trading BP from your overnight excess. If you exceed that, you will get a Day Trading Margin call. https://www.finra.org/investors/lea...ng/day-trading-margin-requirements-know-rules See- Margin Calls

 

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Because close price is more important that open price or \over using leverage,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

 

Unless you buy - then buying power is updated in real time.

 

All that stuff is very complicated and confusing re bp, settled cash, margin, intraday buying power etc, it makes my head melt. I call fidelity often with questions. Seriously it's way too freaking complicated.

 

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Exactly;
ETFs are more complex\ but easier to figure out how to avoid a margin call/LOL
Settled cash is more complex so i check SCHW..............................

 

Interactive Brokers is very simple. If you buy 100 stocks for 5 and sell for 6, now your buy power is 600 (1200 for marginable securities)