I'm not seeing the "Borrow Fee Details" section. I shorted GME on 2/5 and closed it on 2/8. This is all I see. May be there is a bug in IB where it doesn't charge any short fee for GME?
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Here are my trades:
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Expand all sections and look under the sections "Fees" and "Interest" and right above the section "Financial Instrument Information". You really need to look. That section is not obvious.