Union Pacific stock rises 0.61 percent at the close

At the close on September 22, 2026, Union Pacific stock was reported at USD 272.10 on the NYSE, while the S&P 500 rose 1.49 percent. The merger review remained an active company event.

Union Pacific stock was reported at USD 272.10 on the NYSE on September 22, 2026, up 0.61 percent from the prior close. The reported midday move was supported by a company merger update, while the broader S&P 500 rose 1.49 percent to 7,764.70.

September 22, 2026 market figures

Union Pacific Corporation (ISIN US9078181081, NYSE: UNP) traded at USD 272.10 during Tuesday trading, according to MarketBeat. The source reported 1,302,171 shares exchanged against an average volume of 3,035,196 shares, or 42.9 percent of that average. The stock therefore lagged the S&P 500 by 0.88 percentage points on the session based on the reported figures.

Business Wire reported that the Surface Transportation Board denied requests to dismiss the Union Pacific and Norfolk Southern merger application. The decision allows the regulatory review to continue, but it does not approve the transaction.

Regulatory review remains after the bell

The merger review remains the relevant company event for the next trading session on September 23, 2026. Investing.com said the transaction remains subject to Surface Transportation Board review and approval, with completion expected in the second half of 2027 if approval is obtained.