EPAM Systems shares plunged 20% in one of the steepest single-day declines in the S&P 500 after the company’s latest earnings report failed to reassure investors. While fourth-quarter results exceeded management’s own outlook, the company’s guidance for 2026 weighed heavily on sentiment.
The sharp drop made EPAM the worst-performing stock in the S&P 500 for the session. The selloff compounded earlier weakness, with shares already down 18% year-to-date before the earnings release.
Strong quarter overshadowed by cautious outlook
EPAM reported fourth-quarter and full-year 2025 results that management said surpassed expectations. Revenue and margins came in ahead of prior guidance, reflecting continued demand for digital transformation and artificial intelligence-related services.
However, investors focused on the company’s 2026 forecast, which signaled a more challenging operating environment. Management cited shifting client spending patterns toward AI initiatives and a modest headwind tied to a major NEORIS customer. Analysts said the tone of the outlook suggested limited near-term acceleration in growth.
As previously covered, software and IT services stocks have faced heightened scrutiny in 2026 as investors reassess valuations amid AI-driven disruption. In such an environment, even minor signs of weakness in guidance can trigger outsized reactions.
AI opportunity meets market skepticism
Like many of its software and services peers, EPAM has been integrating artificial intelligence into its offerings and helping clients implement AI-driven projects. While management emphasized long-term opportunity, markets appear increasingly impatient for tangible revenue acceleration.
Barron’s noted that in a sector under intense pressure, investors are unforgiving when earnings guidance falls short of elevated expectations. The market’s reaction reflects a broader repricing across software names, where optimism around AI is being tempered by concerns about execution and margin stability.
The 20% slide underscores how quickly sentiment can turn in the current environment. Despite beating quarterly expectations, EPAM’s cautious outlook proved decisive in shaping investor response.
Looking ahead, analysts say the company’s ability to convert AI-related demand into sustained growth will be critical in stabilizing the stock. Until clearer signs of reacceleration emerge, volatility in the shares may remain elevated.