Fees & costs · Lesson 22
My algo said I paid about $209 in fees. My broker said about $155
Fees · algo vs statement
- My algo's number
- ~$209
- Broker statement
- ~$155
- Mistake 1
- kept a 15% borrow discount ~5 weeks after it ended
- Mistake 2 · the bigger one
- charged commission on commission-free trades
"A fee model is only as good as its last check against a real statement."
▶ Watch the ShortWhat it taught me
My algo said I paid about $209 in trading fees, and my broker statement said about $155. The gap came from two mistakes pulling in opposite ways.
My broker gave new accounts 15% off borrow fees for their first 10 trading days, and my algo kept assuming the discount for about 5 weeks after it ended. It also charged commission on trades that were commission free, and that mistake was the bigger one. A fee model is only as good as its last check against a real statement.
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