The first trading day of October ended the way most of the last three weeks have: with the bond market and the stock market in an arm wrestle, and neither side quite winning. The S&P 500 finished up 0.2 percent on Thursday, while the Nasdaq Composite and the Dow Jones Industrial Average ended fractionally higher, all three climbing out of the red in the early afternoon as the 10-year Treasury yield pulled back from its highest level in 24 years (Investopedia).
That sounds calm. It was not. Underneath the quiet close was one of the most violent single days in the bond market this year, a fresh surge in oil prices toward levels not seen in years, and earnings-driven fireworks in both directions.
The yield that would not stop
The day’s real main character was the 10-year Treasury yield. Early Thursday it touched nearly 5.35 percent, a fresh 24-year high, before retreating to 5.25 percent in late-afternoon trading, down four basis points from Wednesday’s close (Investopedia). The pullback from the highs is what gave stocks room to recover; the level itself is what should worry anyone with a mortgage quote or a credit card balance. As the benchmark for everything from home loans to corporate borrowing, a 10-year above 5.2 percent is rewriting the math of American borrowing in real time.
Stocks had opened higher on the back of Wednesday’s cooler-than-expected August inflation report, then faded as yields climbed, a pattern that has now repeated through much of the week. Traders keep rallying with one eye on the Treasury screen and keep giving back gains whenever that screen turns red (TradingNews).
Oil’s two-punch afternoon
Energy provided the day’s other jolt. U.S. benchmark crude rose 2.9 percent to above $93 a barrel, while Brent, the international benchmark, climbed 4.4 percent to $102.35 (Investopedia). Two headlines did the pushing: Reuters reported that Chinese refiners suspended October fuel exports to prioritize domestic supplies, and the Wall Street Journal reported the U.S. was sending a third aircraft carrier to the Middle East, raising the risk premium around supply routes.
Refiners were the day’s stealth winners. Marathon Petroleum rose 5.7 percent, Valero Energy gained 5 percent, and the S&P 500’s energy sector advanced 1.9 percent (Investopedia).
Earnings season’s early verdicts
Accenture was the star of the session, soaring 16 percent to pace the S&P 500 after fiscal fourth-quarter earnings of $3.29 per share on revenue up 6 percent to $18.68 billion, both ahead of consensus, with new bookings of $22.17 billion topping the $19.90 billion expected (Investopedia). The stock had lost nearly a third of its value this year on fears that AI would hollow out consulting; Thursday’s bookings number was the market’s loudest rebuttal.
Micron Technology erased early losses to rise 3 percent a day after posting a near-400 percent revenue jump and a revenue outlook of $60 billion to $63 billion, well above consensus (Investopedia). The memory-chip trade caught fire in the afternoon: the Roundhill Memory ETF advanced almost 3 percent, SK Hynix rose 5 percent, Sandisk gained 3 percent, and the iShares Semiconductor ETF added nearly 1.5 percent (Investopedia).
Synopsys jumped 10 percent after announcing artificial intelligence deals with OpenAI and Amazon, including a multi-year custom chip agreement with Amazon worth more than $1 billion, alongside fiscal 2027 revenue guidance of $11.1 billion to $11.2 billion (Investopedia).
On the losing side, McCormick dropped 5 percent, and MSG Sports fell nearly 5 percent after its board approved splitting the Knicks and the Rangers, with completion expected October 26 (Investopedia). Alphabet slipped less than 1 percent after Google unveiled Gemini 4 Argon (Investopedia).
Mattel surged 19 percent after the Journal reported takeover interest from Authentic Brands Group (Investopedia), and Nike ended down almost 1 percent ahead of its quarterly report after the closing bell (Investopedia).
The wider tape
Beyond stocks, the dollar index rose 0.6 percent to 102.03, gold futures advanced 0.5 percent to $4,205 an ounce, and bitcoin traded around $84,600, up from overnight lows near $83,100 (Investopedia).
For September, the scorecard is now final: the Dow and S&P 500 finished lower while the Nasdaq finished higher, and for the third quarter the Dow fell while the Nasdaq and S&P 500 rose (Investopedia). Thursday was a small green step into October. Friday’s jobs report will decide whether it holds.
