U.S. stocks closed broadly higher on Wednesday, with all three major indices finishing in positive territory after the Treasury Department announced an expanded bond repurchase program that drove yields lower. The Dow Jones Industrial Average gained 0.22%, the S&P 500 rose 0.16%, and the Nasdaq Composite advanced 0.21%. Notable movers included Moderna surging 176.97%, Estée Lauder climbing 16.39%, Marvell Technology jumping 9.85%, Merck adding 12.62%, and Newmont Mining rising 7.86%.

Among the "Magnificent Seven," Nvidia slipped 0.99%, while Amazon gained 2.46%, Tesla rallied 4.23%, Apple rose 2.19%, Alphabet edged up 0.12%, Microsoft added 0.56%, and Meta Platforms advanced 0.43%.

On Wednesday, the U.S. Treasury announced it would more than double the size of its debt buyback operations, a move that pushed bond yields sharply lower. Since late June, the long-end of the curve had struggled with a lack of buyer interest and thin trading activity. According to the Treasury's announcement, the government will raise the buyback ceiling from $2 billion to at least $4 billion per operation.

The previous session saw the 30-year Treasury yield spike above 5.33%, but it has since fallen nearly 9 basis points to 5.196%. The 10-year yield also declined 6 basis points to 4.647%.

Moderna (MRNA) emerged as the session's biggest winner. The company, alongside partner Merck, released encouraging late-stage clinical data for its experimental cancer vaccine, sending shares up more than 80%. Merck's stock also climbed over 7%, providing a significant lift to the Dow.

Marvell Technology opened more than 12% higher after announcing a collaboration with Google related to tensor processing units. As part of the deal, Google received a warrant to purchase up to nearly 59 million shares of Marvell common stock.

Tuesday's session had seen U.S. stocks close lower, with the S&P 500 logging a third consecutive day of losses, as sovereign bond yields across multiple global markets hit multi-year highs. Beyond the 30-year Treasury reaching a 19-year peak, Japan's 10-year yield touched a 30-year high, France's 30-year yield reached levels not seen since 2008, and Germany's 30-year yield climbed to its highest point since 2011.

Despite these pressures, Adam Parker, founder and CEO of Trivariate Research, remained optimistic: "The economic fundamentals remain strong. The earnings power and cash flow of large corporations are robust enough to weather this bout of market anxiety."

Investors were also closely watching the release of the Federal Reserve's latest Federal Open Market Committee (FOMC) meeting minutes, scheduled for Wednesday afternoon. With clear divisions emerging within the central bank, market participants were eager for details—particularly regarding the three dissenting votes in favor of a rate hike at the July meeting.

Meanwhile, legendary investor Leon Cooperman, CEO of Omega Advisors and former head of Goldman Sachs, issued another warning about the U.S. economy and stock market. He predicts the economy could slip into recession within the next year, potentially dragging equities down with it. Cooperman drew parallels between today's market and historical boom-bust cycles, including the "Nifty Fifty" collapse of the early 1970s. He also suggested that optimism surrounding AI investments may be cooling, stating, "I think we're going to have a recession sometime next year, and it could cause the market to decline." He further cautioned that investors are overlooking the risk of resurgent inflation, which could also weigh on stock valuations.

Cooperman's views place him notably at odds with mainstream Wall Street sentiment. Most market forecasters remain bullish on AI demand and the returns on related investments. The Nasdaq 100 has risen 19% year-to-date, positioning it for a second consecutive year of double-digit gains.

In a separate note, BTIG technical strategist Jonathan Krinsky highlighted an unprecedented structural divergence in the U.S. equity market. Price action and market breadth continue to move in opposite directions, with capital rotating unpredictably across factors. Once this "game of musical chairs" comes to an end, Krinsky warns, investors could face a broad, synchronized sell-off not seen in nearly a decade—a scenario of unusually high correlation.

Market breadth, a key indicator of market health, has been flashing warning signs. Krinsky noted that 2026 has already seen 57 trading days where price action and breadth diverged, tying with the past two years for the most in nearly three decades—and with only mid-August on the calendar, that record is all but certain to be broken. He cautioned, "We are closer to that day than many people think," referring to the moment when investors, finding no remaining "chairs," may rush to cash, triggering the kind of broad, correlated selling that has been absent for ten months.