Union Pacific stock rises 0.3 percent ahead of the open

At the close on September 23, 2026, Union Pacific stock reached USD 275.28 after adding 0.3 percent. Volume was 1,890,477 shares, while the S&P 500 fell 0.8 percent to 7,706.03.

Union Pacific stock closed at USD 275.28 on the NYSE on September 23, 2026, up 0.3 percent. The shares outperformed the S&P 500, which fell 0.8 percent to 7,706.03 in the same session.

September 23, 2026 in numbers

Union Pacific Corporation (ISIN US9078181081, NYSE: UNP) traded up USD 0.87 during the session, with 1,890,477 shares changing hands. The volume was below the reported average of 3,042,144 shares, while the one-year range stood at USD 215.53 to USD 315.99.

As Union Pacific reported on September 23, 2026, the railroad introduced two battery-electric locomotives in Southern California. The company said two additional units are scheduled to arrive in October.

Merger review advances today

Union Pacific and Norfolk Southern acknowledged further progress in their proposed combination on September 23, 2026, according to Business Wire. The development is relevant to Union Pacific because the proposed transaction remains subject to regulatory review.