Microsoft Shares Surge to Lift Wall Street and S&P 500 After Upbeat Forecast

Microsoft Leads Wall Street Rebound With Historic Single-Day Gain

Wall Street ended sharply higher on Thursday, driven by soaring Microsoft shares that injected much-needed confidence into a skittish technology sector. The company’s market value surged by $450 billion, marking the greatest-ever single-day increase for a company on Wall Street, according to market data.

The broader market responded immediately to the tech bellwether’s performance. The S&P 500 rallied 1.7% to finish at 7,437.63 points, more than erasing its steep losses from the previous session. The Dow Jones Industrial Average climbed 613 points, or 1.2%, to close at 52,208.06 points, while the technology-heavy Nasdaq composite jumped 2.8% to 25,122.18 points.

Azure Growth and Controlled Capex Ease AI Spending Fears

For months, investors have grown increasingly uneasy over the staggering capital outlays required to build out artificial intelligence infrastructure. Recent negative cash-flow reports from Alphabet and Tesla had triggered a broad sell-off across AI-linked equities, leaving Wall Street deeply divided over whether the enormous investments would yield worthwhile returns.

Stocks Rebound As Microsoft Surge And Chip Recovery Lift Wall Street

“These are true battleground stocks. Investors can’t make up their minds whether the ROI on the massive capex spending is going to be worthwhile or not.”

Jed Ellerbroek, portfolio manager at Argent Capital Management, via Reuters

Microsoft fundamentally altered that narrative. The company reported strong growth for its Azure cloud business, and Satya Nadella emphasized that the results reflect how customers are using Microsoft to move into AI. Crucially, Microsoft did not announce a big increase in how much it plans to spend on its artificial intelligence investments, allaying fears that runaway spending would permanently damage cash flows.

S&P 500 hits 6-year quarterly high as AI-driven tech surge lifts Wall Street

Contrasting Fortunes: Meta Plunges While Chipmakers Rally

The divergence in big tech strategies became starkly apparent as social media giant Meta Platforms moved in the opposite direction. Meta tumbled after reporting a 91% drop in second-quarter free cash flow, a steep decline that laid bare the immediate financial strain of its aggressive infrastructure buildout. While Meta posted slightly higher revenue than expected, its weaker-than-anticipated profit and raised capital expenditure forecast alarmed investors.

The contrast reinforced an emerging market dynamic.

Meanwhile, semiconductor and hardware suppliers clawed back a meaningful share of their recent steep losses. The PHLX chip index surged 8.2%, propelled by massive gains across the supply chain. Micron Technology jumped 18.4%, Lam Research soared 18%, and Advanced Micro Devices rallied 13% as investors rushed back into the processors and memory components driving the AI revolution.

Citadel Hedge Funds Post Strong First-Half Gains

Federal Reserve Policy and Persistent Bond Market Pressures

While equity markets celebrated tech earnings, fixed-income investors remained cautious following the Federal Reserve’s decision to leave interest rates unchanged. Bond yields held steady after sharp accelerations earlier in the week, with the 10-year Treasury yield resting at 4.67% and the 30-year Treasury yield ticking up to 5.22%.

Fed Chair Kevin Warsh offered few definitive clues regarding future rate cuts during his address, emphasizing the central bank’s commitment to returning inflation to its 2% target. Warsh suggested that the bond market itself might already be performing some of the central bank’s tightening work through higher long-term yields.

Arguably, it already is.

CME FedWatch data indicated that traders have trimmed expectations for a rate hike at the Federal Reserve’s September meeting, pricing in a 59% probability, down sharply from 82% just one week prior.