JPMorgan Chase & Co must allow shareholders to vote on measures that would tie executive bonuses to the bank's long-term stock performance, U.S. regulators have ruled.

The fund is proposing that the bank's most senior executives keep 75 percent of their shares for two years after leaving the company. The fund is also proposing that JPMorgan's board of directors should prohibit these executives from hedging their shares to offset losses.

JPMorgan had wanted to reject the proposal in part because it may require the bank to impose restrictions on transferring shares already issued and because it has already made changes to executive bonuses, the bank said in a letter to the Securities and Exchange Commission.

But the SEC said the fund's proposal could be rewritten to make it clear it applies to compensation paid in the future, and if it is rewritten it cannot be excluded from proxy materials.

A JPMorgan spokesman declined immediate comment.

The AFL-CIO fund is an investment fund for the American Federation of Labor and Congress of Industrial Organizations. It has 2,515 shares in JPMorgan, according to a letter it sent to the bank in November.

Payouts for executives have come under scrutiny as financial stocks have slumped since the start of the credit crunch more than 18 months ago.

JPMorgan Chief Executive Jamie Dimon has already said he will not receive a bonus for 2008.

Shares in JPMorgan have fallen almost 25 percent since the start of the year.

(Reporting by Elinor Comlay; Editing by Gary Hill)