Fully paid stock lending: calculate income and check the rights you give up

Start with the loan, then calculate the income

A fully paid stock lending offer can make a familiar portfolio look like a new income source. Before treating the advertised rate as portfolio yield, establish exactly which shares would be loaned, how much compensation reaches you, and which contractual rights change. This guide builds a small worksheet for that decision. It does not recommend enrolling or choosing a broker.

Investor.gov describes securities lending as a temporary transfer of securities in exchange for a fee. Borrowers can use securities for activities including market making and short selling. That definition explains the separate transaction: you are evaluating a lending arrangement alongside an investment you already hold.

Begin with one holding instead of an account-wide annual-income estimate. Save the current agreement and disclosure, then record their dates beside your worksheet. Treat a missing answer as an open question for the broker. An attractive rate cannot fill in an unanswered question about who owes you the shares or how collateral would be accessed.

Separate the eligible position from the actual loan

Use three quantity fields: shares owned, shares eligible, and shares actually on loan. A preliminary estimate should label the last field as an assumption until a loan record exists. Multiplying a rate by your entire account balance conceals this distinction and can make a small opportunity appear material.

Fidelity says enrollment does not guarantee that securities will be borrowed. Its lending income depends on demand, accrues daily and is credited monthly. Current loans and rates appear through Positions and the Loaned Securities page; monthly records are available through Documents and Account Records. These are Fidelity-specific descriptions checked on October 19, 2026, not a promise about another broker's interface.

For your own worksheet, put the observed loan quantity next to its observation date. If a statement covers a month, do not assume its ending quantity applied throughout the month. Request the activity detail needed to distinguish a new loan from a return. This is a reconciliation task, not a forecast of borrowing demand.

Calculate a transparent hypothetical

Suppose an investor owns 200 shares priced at $50 each, a $10,000 holding. Assume only 100 shares are on loan, with a constant $5,000 loan value. Assume the investor's net annual lending rate is 3.6%, the agreement uses a 360-day basis, and the loan lasts 20 days. All figures are hypothetical; they are not an available quote.

The assumed fee is $5,000 multiplied by 0.036 multiplied by 20 divided by 360: $10. Applying the same calculation to the entire $10,000 holding would produce $20, twice the hypothetical income. The difference comes entirely from counting shares that were never loaned.

Now keep the loan value fixed but assume ten days at 3.6% and ten days at 1.8%. The first period earns $5 and the second earns $2.50, giving $7.50. A single ending rate would not reconstruct both periods. These simplified calculations exclude price changes, rounding and tax effects. Replace the assumptions with the agreement's actual accrual basis and records before comparing the estimate with a payment.

Identify whose rate is being displayed

A rate label needs a definition. Write down whether the quoted figure is what the borrower pays, what the broker receives, or what the customer earns after a revenue split. Do not apply a revenue split twice to an already net customer rate. Conversely, do not treat a gross rate as spendable customer income.

Schwab's FAQ says its lending rates can change daily with demand and payments are monthly. Its published illustration divides lending revenue between Schwab and the customer. The FAQ points clients to Accounts, then Securities Lending for loan and collateral information. Those program details illustrate why a generic percentage is insufficient; they do not establish a rate or income commitment for your account.

Add two columns to the worksheet: estimated accrued compensation and cash actually credited. Explain any gap using dated loan activity, rate changes and the payment period rather than immediately assuming an error. Keep a copy of the broker's explanation if its day count or valuation convention differs from your estimate. The useful output is a reconciled dollar amount with named assumptions.

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Keep the stock thesis separate

The arithmetic above measures lending compensation. It does not decide whether the underlying stock belongs in the portfolio. In a separate hypothetical, a $1 decline across the original 200 shares reduces their market value by $200. That price move is much larger than the $7.50 variable-rate lending example. The comparison does not predict a loss; it shows why small additional income should not dominate the stock decision.

Use separate rows for changes in share value, ordinary dividends, substitute dividend payments and lending fees. Keep collateral outside the income subtotal. Otherwise, a transfer displayed in an account can be mistaken for investment profit and distort the comparison.

A practical decision note might say: the company remains attractive under the existing earnings thesis; lending is a separate optional arrangement whose estimated compensation is modest. Or it might say: the original investment case has weakened, and lending income does not resolve that weakness. Writing the two conclusions independently makes it harder to keep an unwanted position solely to preserve a small fee.

Review rights and protection before enrollment

FINRA Rule 4330 requires written disclosures for these borrowing arrangements covering voting rights, sale rights and possible limitations, compensation, collateral risks and potential tax effects. It also requires a prominent warning that statutory investor protection may not apply to the loan transaction and that collateral may be the only source of satisfaction if the firm does not return the securities. Read the actual disclosure instead of assuming ordinary account protections carry over unchanged.

Fidelity says loaned shares lack SIPC protection, with collateral of at least 100% of value, held through a third-party custodian and marked to market daily. Schwab describes 102% collateral and also says loaned positions are not SIPC-covered. These program statements are not interchangeable guarantees.

Ask who the contractual borrower is, what collateral can be posted, where it is held, how often it is adjusted and what process applies after a failure. Record the answers in plain language. A percentage alone does not explain custody or recovery. If you cannot describe the process from the documents, leave the decision unresolved.

Put shareholder dates on the same page

Fidelity states that shares on loan over a proxy record date lose voting rights and should be recalled in advance if the investor wants to vote. It also warns that cash paid in lieu of a dividend can receive different tax treatment. These are reasons to inspect shareholder dates before evaluating a net benefit, not a basis for assuming a particular personal tax outcome.

Build a calendar row for each relevant dividend or proxy event. Beside it, record whether participation matters to you, which agreement provision applies, and whom to contact about timing. Seek a qualified tax professional's guidance where the treatment affects your decision. Avoid inserting an estimated tax advantage into the income worksheet without a defensible basis.

Separately, write down the actual steps for selling or requesting a recall under your broker's agreement. A general statement that you can sell does not tell you which account screen or process applies. Verify the instructions before an urgent portfolio decision. Keep the confirmation with your dated records, and distinguish a request from confirmation that a loan has ended.

Close the review with a decision record

Finish with a one-page record containing the holding, actual or assumed loan quantity, customer compensation basis, observation period, reconciled income and unresolved contractual questions. Attach the source documents rather than copying a marketing headline into the conclusion. Revisit the record when terms change or when a shareholder event becomes relevant.

For the hypothetical investor, the useful result is not an annualized promise. It is an estimated $7.50 for two explicitly assumed ten-day periods, plus a separate assessment of whether the contractual arrangement is acceptable. Another investor may reach a different decision because voting, administrative effort or the protection structure matters more than that incremental amount.

A satisfactory review ends with either a supported decision or a specific unanswered question. Do not turn incomplete information into a default enrollment choice. The worksheet succeeds when it makes the income calculation reproducible and the remaining tradeoffs visible, even if the eventual decision is to leave the shares unloaned.

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ORIGINAL SOURCES & FURTHER READING

Research and education, not personalized investment advice. Facts and examples should be read in the context of their stated periods. Follow the original disclosures for the complete record.