Analysis-US markets brace for renewed funding pressure as leverage rises

NEW YORK - U.S. equity funding markets remain stretched in the wake of last month's spike in short-term borrowing costs, as near-record stock prices and a frenzy over popular technology shares fuel demand for leverage.

Concerns center on the equity repurchase or repo market, where investors and traders borrow short-term cash against stock holdings. Ahead of the June quarter-end, financing costs in that market surged as demand for leveraged equity exposure intensified. The cost of financing equity positions climbed to roughly 200 basis points above the federal funds rate on June 26, Morgan Stanley data show, the highest since December 2024.

While those costs have since fallen by more than half to 89 basis points, according to another metric that has a quarterly maturity, market participants say the forces that drove rates sharply higher remain in place - including the proliferation of leveraged exchange-traded funds that have been snapped up by traders eager to play hot sectors such as semiconductors.

The persistent demand for leverage means another bout of funding pressure could lie ahead, including at coming quarter-end periods. Repo rates often jump then as banks pull back from lending to manage their balance sheets for reporting purposes. That can make short-term cash more expensive, which in turn can prompt a broader pullback from popular trades.

"The risk of a funding spike may be with us for the foreseeable future," said Martin Tobias, U.S. rates strategist at Morgan Stanley in New York.

TOO MUCH LEVERAGE?

Several measures suggest investors are becoming increasingly dependent on leverage, Tobias said.

Equity financing rates typically trade only a few basis points above the fed funds rate or the Secured Overnight Financing Rate (SOFR), said Kevin Muir, a Toronto-based independent proprietary trader. Unlike unsecured borrowing, equity financing is backed by highly liquid collateral, so the cost should only be modestly above the risk-free rate.

Yet financing costs have remained elevated despite that collateral advantage, a dynamic that coincides with primary dealers' exposure to equity financing hovering near record highs, with borrowing activity concentrated in a relatively small group of stocks such as tech and semiconductor firms. Federal Reserve data show dealers held about $211 billion of such exposure on their balance sheets as of June 24.

"What these equity financing metrics are signaling is that the marginal buyer has become one that's been increasingly reliant on leverage," Morgan Stanley's Tobias said, referring to that group of market participants that actually moves markets, such as levered investors.

His measure of dealers' equity repo exposure relative to the S&P 500's free float adjusted market capitalization has climbed 50% over the past year, indicating that each dollar of investible equity capital is increasingly supported by leverage.

At the same time, the stock market's leadership has narrowed and leverage increasingly appears concentrated in hot technology sectors, making the market more vulnerable to a reversal if sentiment shifts.

"The next correction could very well be much larger than people expect because of the crazy amount of speculation that's occurring," prop trader Muir from Toronto said, adding that the recent funding spike "signifies the monstrous amount of demand in equity markets."

One example is the rapid growth of leveraged exchange-traded funds, he said, which require additional financing and hedging by banks and dealers. The result, Muir pointed out, is a market heavily positioned for one outcome - higher stock prices.

Muir compared the current environment to a crowded trade where optimism has become deeply entrenched. That does not mean a correction is imminent, but it could make any eventual pullback more severe.

NOT ENOUGH BALANCE SHEET CAPACITY

Sam Earl, U.S. rates strategist at Barclays, sees the recent pressure as a straightforward supply and demand problem. Demand for equity financing has surged, while dealer balance sheet capacity has not kept pace.

"When you have a massive run-up in equity prices so quickly, that's just a ton of balance-sheet capacity that's being used," Earl said.

He estimates that the equity financing market is roughly $10 trillion in size. A 10% increase in leveraged equity exposure can translate into about $1 trillion of additional financing demand. Combined with strong gains in overseas markets, particularly in Asia, those needs can quickly consume available capacity.

Unless dealer balance sheets expand significantly or stock prices cool enough to reduce financing demand, similar pressures are likely to resurface, Earl said.

Neither scenario appears especially likely in the near term. U.S. stocks remain near record highs, although a pullback here and there on the back of Iran war headlines is possible. At the same time, enthusiasm for technology and artificial-intelligence trades remains strong, while demand for leverage shows few signs of fading.

"It's a very dangerous environment if this all unwinds. The potential for an accident is increasing," Muir from Toronto said.

(Reporting by Gertrude Chavez-Dreyfuss; Editing by Colin Barr and Andrea Ricci )

Copyright Reuters or USA Today Network via Reuters Connect.

This story was originally published July 9, 2026 at 10:36 AM.