I’m very new to trading and I am using think or swim. My cash balance is $50.90 and my stock buying power is $39.79.

  • I don't use TOS so I can't give you their text and verse. However, buying power is affected by various factors: The broker's margin rate (if a margin account), unsettled trades, whether owned securities are marginable or not. So it's insufficient information to offer anything of substance. – Bob Baerker Mar 26 at 0:30
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    I rather suspect you are trading on margin, and, some of your stocks have fallen. As a result, your margin has also fallen. "margin" is when you put $50 on account and they give you a credit line of another $50. As your cash value goes up and down, so does your margin. Given the low numbers, I hope this is a simulator account or they're letting you practice with 3-digit amounts of money. I would shudder to think you had invested serious money and didn't know you were trading on margin... – Harper - Reinstate Monica Mar 26 at 1:47
  • Is there a way to tell if I am trading on margin? – Tristan Troftgruben Mar 26 at 2:27
  • I may have canceled a limit order after hours if that would make a difference – Tristan Troftgruben Mar 26 at 2:34

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