Teradata's stock experienced a significant post-market decline of 5.72% following the release of its first-quarter 2026 financial results.

The company reported strong Q1 performance, with adjusted earnings per share of $0.88, surpassing the IBES estimate of $0.74, and revenue of $444 million, beating the estimate of $428.4 million.

However, the stock plunged due to the company's outlook for the second quarter, which projects total revenue to decline in a range of -4% to -2% year-over-year. This weak forward guidance overshadowed the positive Q1 results, leading to the after-hours sell-off.