SentinelOne shares fell by 32.4% over the course of 2025, underperforming the S&P 500’s 16.4% gain and the Nasdaq Composite’s 20.4% advance. This followed a roughly 19% drop in 2024, marking three consecutive years of negative returns. In early 2026 the slide accelerated, with an additional 7.3% loss year-to-date, even as broader market indexes posted modest gains of around 1.3%.

Despite the share-price weakness, SentinelOne reported consistent revenue growth. Fiscal Q4 2025 sales rose 29.5% year-over-year to $225.5 million, beating consensus by $3.2 million. In Q1 2026, sales aligned with Wall Street targets. Q2 revenue reached $242.2 million, matching forecasts, while adjusted EPS of $0.04 topped estimates by $0.02. Fiscal Q3 2026 sales climbed to $258.9 million, beating expectations by $2.7 million, and non-GAAP EPS of $0.07 outperformed by $0.02.

Investors reacted negatively to signs of decelerating year-over-year growth rates and persistent margin compression. In Q4 2025, the company reported a loss of $0.22 per share, $0.01 worse than the consensus forecast. Management’s guidance issued in May for the 2026 fiscal year fell below market hopes, triggering outsized sell-offs around the Q1 report. Additional concern arose in December when CFO Barbara Larson announced her retirement, spurring further volatility.

SentinelOne currently trades at approximately 72.5 times projected earnings and 7.7 times expected sales, a premium relative to many cybersecurity peers. Investors question whether sustained market share gains and margin expansion can justify that premium in a crowded landscape featuring legacy incumbents and fast-growing rivals. Analyst commentary highlights potential headwinds from pricing pressure, product bundling by larger competitors, and an uncertain macroeconomic backdrop.