iShares iBonds Dec 2032 Term Mu (IBMU) — Cost to Borrow & Stock Loan Fee
Latest borrow fee for IBMU: 5.52% per year (as of Jul 10, 2026 10:02 AM ET) . Shortable shares available: 0.
Over the last window (Jun 13, 2026 – Jul 10, 2026) , borrow fees ranged from 5.19% to 7.59%, averaging 6.01% across 1,177 samples.
Frequently asked questions
What is the cost to borrow IBMU?
The latest borrow fee for IBMU is 5.52% per year, sourced from IBKR.
Why does borrow fee change?
Borrow fees rise when fewer shares are available to lend and fall when supply grows. Low-float, high-interest names often show sharp intraday fee spikes.
How often is CTB updated?
finshort polls IBKR throughout each trading session. Borrow fees and shortable share counts are refreshed every few minutes during market hours.