ISHARES USD TREASURY BD1-3YR UC (ITBFF) — Cost to Borrow & Stock Loan Fee
Frequently asked questions
What is the cost to borrow ITBFF?
Cost to borrow (CTB) is the annualized rate a broker charges to lend out ITBFF shares for short selling. It varies throughout the trading day based on supply and demand.
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.