Stocks Went Up and Borrowing Costs Went Down — Here's Why

On August 25, 2026, two things happened at once in the financial markets. U.S. stocks went up, and the interest rate the government pays to borrow money — called the Treasury yield — went down. The 10-year Treasury yield fell by about 0.056 percentage points, ending the day at 4.649%, down from 4.704% the day before, Reuters reported.

Think of a Treasury yield like a thermostat for borrowing costs across the economy. When it goes down, it means the government is paying less to borrow, and that often pulls down interest rates on mortgages, car loans, and credit cards too.

The yield moved around a lot during the day. It started at 4.704%, went as high as 4.716%, dropped as low as 4.637%, and settled at 4.649%, according to CNBC. That low point matters because it dipped below the yearly high of 4.668% set on May 29, as recorded by Dow Jones Market Data and reported by WSJ. The last time the yield was this low was back on May 20, when it fell to 4.576%, per CNBC.

What caused the drop? It appears to be oil. AP reported that a drop in oil prices helped calm both stock and bond markets. The link is simple: when oil gets cheaper, gasoline and other costs tend to fall, which means less inflation. Inflation is the rate at which prices rise over time. When investors expect less inflation, they are willing to accept lower yields on bonds — because the fixed payments those bonds promise will lose less of their value to rising prices.

On the stock side, the biggest winners were Nvidia (+1.65%), Cisco Systems (+1.64%), and Merck (+1.25%), according to Trading Economics. Nvidia's gain drew attention because the company was about to release its earnings report, which Reuters called a key event for the day. Cisco's gain was nearly identical to Nvidia's. Merck, a healthcare company, added a steadier type of stock to the rally.

The biggest losers were Nike (-3.24%), Walmart (-1.42%), and Chevron (-1.12%), per Trading Economics. Chevron's drop makes sense next to the oil-price decline — energy companies tend to fall when crude gets cheaper. Nike's 3.24% slide was the day's largest single-stock loss by a wide margin. Walmart's decline suggests that companies selling to everyday consumers faced pressure, even as tech and healthcare stocks rose.

The picture was mixed overall. The winners came from three sectors, but the losers were spread across consumer goods (Nike and Walmart) and energy (Chevron). That spread points to a market reacting to two specific things — oil prices and Nvidia's upcoming results — rather than a broad wave of confidence.

The Treasury yield's path during the day deserves attention. It started at its previous closing level of 4.704%, crept up to 4.716% early on, then swung down to 4.637% before closing at 4.649%.

The broader context here is worth understanding. A yield that closes near its lowest point of the day usually means investors kept buying bonds right through to the end of the session, rather than briefly dipping in and out. The 0.056-percentage-point drop from the previous close confirms that the buying held.

For context, the 10-year yield's high point for 2026 was 4.668% on May 29. Today's close of 4.649% is below that, meaning the yield has not reached a new yearly high despite the inflation worries that pushed it up all summer. The May 20 level of 4.576% is the lower end. The yield has been bouncing between 4.576% and 4.668% since late spring, and today brought it back toward the middle of that range.

Having stocks and bonds both rise on the same day is not common. Usually, cheaper oil hurts energy stocks while helping bonds. Chevron's drop alongside the Treasury rally fits that pattern. The tech rebound, though, looks like it was driven by investors positioning before Nvidia's earnings — a separate cause. Two different forces moved the market on the same day.