At the bottom of the Fidelity statement it says:

Cost or other basis provided may include adjustments including, but not limited to, dividend reinvestment, return of capital/principal, wash sale loss disallowed, amortization, accretion, acquisition
premium, bond premium, market discount, market premium, and option premium.

Maybe I'm reading too much into it. It says MAY, so it could be either way.

Thanks,

Melissa