Anyone Using IBKR Should Check Their “Lots” I Found Major Price Errors on Simple Buys
Today I checked the view lots screen for a couple of my positions, and the cost basis numbers IBKR assigned are completely wrong like, not even close.
Position a) CIBR ETF: I bought shares on 14/10/2025, one single trade. IBKR shows two different costs for that same date:$76.85/$126.11
These prices are nowhere near each other. I definitely did NOT buy anything at $126.
Position B) Veri: on 04/11/2025 IBKR shows: $6.16/$39.44
I made only normal buys. No special orders, no after-hours weird fills.
And $39.44 for VERI on that day makes zero sense.
This isn’t just a UI bug it affects: your P/L calculations, tax reporting and ability to reliably track performance
If IBKR is assigning wrong lot prices, we’re literally losing money just from their reporting erro.
Advice to everyone using IBKR go to: Account → Portfolio → View Lots
Check the “Avg Price” and “Total P/L” for each purchase date.
If you see random tiny fractional lots with insane prices, or duplicated dates with different costs, there may be a misallocation or pricing glitch.
I’ve already contacted IBKR support
I’ve opened a ticket asking them to review the executions and fix any incorrect cost basis assignments.
If this happens to more people, it might be a broader system issue worth reporting.
Has anyone else seen this?
Check your account you might be surprised.