Microsoft rose 4.1% and helped lift the Dow as investors weighed its business-focused Copilot pivot against Meta's device plans. Oil fell 3.2% after Iran floated a conditional reopening of the Strait of Hormuz. U.S. gasoline averaged $4.49 a gallon.
The Dow added 120 points on Friday, with Microsoft accounting for the biggest named move in the source data. Its shares rose 4.1%, and the index gained 0.8%. The Nasdaq Composite rose 0.5%. The S&P 500 advanced 0.4%.
Oil prices moved lower after Iran's foreign minister said the Strait of Hormuz could reopen within seven days if certain conditions were met. The possibility lifted market hopes, but it was not a confirmation. The day's stock gains did not settle questions about energy costs.
Microsoft said early access to Copilot Code would begin near the end of September, while Autopilot was also slated for a private preview at the end of the month. Microsoft 365 Premium and Pro subscribers were expected to get access later in 2026.
AI strategies split the market
Microsoft is bringing Copilot's consumer and workplace features together, with a stronger focus on businesses. It is stepping back from the personal chatbot market and leaving that contest to OpenAI, Alphabet and Meta. The new experience combines Chat/Home, Code and Autopilot. Code can create apps and dashboards from natural-language instructions. Autopilot is an agent designed to handle multi-step tasks. Word, Excel and PowerPoint are also built into Copilot, according to Reuters' Copilot launch report.
Investors responded quickly. Microsoft gained 4.1% and contributed 120 points to the Dow, making it the index's most consequential named mover in the source data.
That was the split.
Meta fell 3.6% after it unveiled plans to put its Muse AI agent in glasses and other gadgets. The drop does not show why investors sold the shares. It does show that a major AI announcement alone did not guarantee a positive market response. Bloomberg described Microsoft's shift as a retreat from the personal chatbot race. It also reported that the Copilot overhaul followed roughly six months of engineering work, as detailed in Bloomberg's rebuild account. Indexes have also moved in different directions in recent trading, as discussed in this earlier market report.
Microsoft is also introducing Copilot Credits to aggregate AI operations for workplace use. The company says administrators can set spending limits before charges are incurred.
Oil falls but costs persist
The prospect of a Hormuz reopening helped push the United States Oil Fund down 3.2%. Iran's foreign minister described a possible reopening within seven days, subject to certain conditions. That is a scenario, not confirmation that the strait will reopen on that timetable. The fund's drop does not prove that energy supply risks have disappeared.
Gasoline was still costly for U.S. drivers. Regular gas averaged $4.49 per gallon. The source gives no further timing or price comparison, so it does not show how quickly pump prices might respond. A daily move in an oil fund and the price at the pump are different measures.
The risks remain.
Hardware and cyclicals diverge
Chip stocks brought separate company news. SK Hynix rose 3% amid reports of possible memory orders for the next PlayStation console. Those orders were a possibility, not a confirmed sale. Micron Technology was unchanged ahead of its earnings report. Investors had no new earnings result to trade on that day.
Caterpillar and Sherwin-Williams also rose. The source cited no specific company news for either stock. Both are cyclical companies, with businesses tied to economic activity. Their gains added breadth to Friday's advance, but one session does not establish a lasting view of economic growth.
One session only.
What Friday's moves show
Friday's numbers were positive but uneven. The Dow gained 0.8%, the Nasdaq 0.5% and the S&P 500 0.4%. Microsoft rose 4.1%, while Meta fell 3.6% and the United States Oil Fund dropped 3.2%. Index gains can hide sharp differences among companies and sectors. Investors were weighing separate developments in corporate AI strategy, hardware demand prospects and the chance of lower oil prices.
The clearest reading is that investors welcomed Microsoft's defined enterprise direction and took a more cautious view of Meta's device plans. They also welcomed the possibility of lower oil prices, but there is no evidence that the risk has passed. A one-day stock move cannot settle what comes next for investors or households. Nor can a conditional diplomatic statement. Friday's gains were real. The assumptions behind them still depend on company execution and whether the Strait of Hormuz can reopen under the stated conditions.
