How Can Securities Lending Help Offset a Fund's Costs?
Most investors picture a fund’s holdings as sitting still until they’re bought or sold, but many funds also put those same holdings to work in a separate, largely invisible market.
The short answer
Securities lending is when a fund temporarily lends out shares or bonds it already owns to another party, usually in exchange for collateral and a fee. The fee becomes extra income for the fund, which can partly offset its expense ratio and other costs, occasionally narrowing the gap between the fund’s return and its benchmark’s return.
Who borrows the securities and why
The most common borrowers are traders looking to sell a security short, meaning they want to bet its price will fall. To do that, they need to borrow shares first, sell them, and later buy them back to return to the lender. Other borrowers may need the securities temporarily for settlement or hedging purposes. Either way, the fund isn’t giving up ownership permanently — it’s a short-term arrangement with a fee attached, similar in spirit to renting out an asset it already holds.
Collateral is central to how the arrangement works
Because lending out securities carries some risk that the borrower won’t return them, lenders generally require collateral worth more than the securities being lent, often held in cash or highly liquid instruments. If a borrower fails to return the securities, the fund can use that collateral to replace them. This collateral requirement is a core part of how lending programs are structured to manage counterparty risk, though it doesn’t eliminate risk entirely.
How the income actually helps a fund
- Extra income reduces net cost. Lending fees flow back to the fund (often split with the fund manager or lending agent), which can help offset the expense ratio investors already pay.
- It can narrow tracking difference. In periods when lending demand is high, the extra income has occasionally been enough to push a fund’s tracking difference closer to zero, or in rarer cases, slightly positive.
- Demand varies by holding. Securities that are harder to borrow elsewhere, often smaller or more heavily shorted ones, tend to command higher lending fees than widely held, easy-to-borrow stocks.
- It’s one factor among several. Lending income is just one of the various forces that determine how closely a fund’s actual return matches its index.
The trade-offs worth understanding
Securities lending isn’t free of risk. There’s a chance, however small, that a borrower defaults and the collateral doesn’t fully cover the value of what was lent, particularly if the collateral itself loses value during the loan. Funds that engage in lending generally disclose their policies, including collateral requirements and how lending revenue is split, in their prospectus or annual report, which is where this detail can be reviewed for any specific fund.
The bottom line
Securities lending lets a fund earn incremental income from holdings it already owns, and that income can help offset costs and occasionally narrow the gap with a benchmark. It comes with its own layer of counterparty and collateral risk, which is part of why it’s disclosed separately rather than folded silently into a fund’s reported performance.