Stocks across multiple sectors moved sharply in after-hours trading as corporate reports and a clinical study update altered near-term investor expectations.
Akamai Technologies (AKAM) fell 9% in after-hours trade. The company matched consensus estimates for quarterly EPS and revenue, but its fiscal 2026 guidance came in below market expectations. Management projected FY2026 EPS of $6.20 to $7.20, compared with a consensus forecast of $7.34, prompting the share price decline.
Diagnostic developer GRAIL, Inc. (GRAL) dropped 30% after announcing mixed results from its cancer screening test study. The company reported that the trial did not meet its primary endpoint - a statistically significant reduction in Stage III-IV cancers. However, GRAIL disclosed a favorable trend toward fewer Stage III-IV cancers in a pre-specified subgroup of 12 deadly cancers in the intervention arm following the prevalent screening round. The mixed nature of the readout coincided with the steep sell-off.
Opendoor (OPEN) rallied 12% after reporting quarterly revenue of $736 million, well above the consensus estimate of $576.94 million. The stronger-than-expected top line drove the after-hours gain for the real estate technology company.
Workiva (WK) climbed 8% after releasing fourth-quarter results that beat expectations on both the bottom and top lines. Q4 EPS came in at $0.78, $0.09 above the consensus estimate of $0.69. Revenue for the quarter was $239 million versus a consensus estimate of $235.17 million, supporting the stock's positive move.
Alarm.com (ALRM) rose 6% after the company beat consensus on revenue and earnings and issued optimistic guidance for the coming fiscal year. Alarm.com sees FY2026 EPS of $2.78 to $2.79, compared with a consensus estimate of $2.68, a guidance range that underpinned investor confidence.
This set of after-hours moves underscores how guidance and clinical trial results can dominate near-term stock performance even when current-quarter figures meet or beat expectations. The reactions spanned cybersecurity and internet infrastructure, diagnostics, real estate technology, enterprise software, and connected security services.