Why Is F5 INC (FFIV) Stock Down Today?

F5 Inc (FFIV) shares fell 13.21% to $398.68 on Wednesday. The primary driver was a post-earnings reaction to Q4 results, where revenue rose 13% to $917 million and adjusted EPS of $4.42 beat estimates, yet the stock sold off on guidance and margin concerns.

What Happened

F5 reported fourth-quarter revenue of $917 million, up 13% year over year, with product revenue growing 23%. Adjusted earnings per share came in at $4.42, exceeding the $4.26 estimate. Despite the top-line beat, the company guided for fiscal 2027 revenue growth of 8% to 9%, a slowdown from the current trajectory. Non-GAAP operating margins contracted, and inventory surged 239%, prompting a $1.82 billion buyback announcement.

Piper Sandler downgraded the stock to Neutral from Overweight, maintaining a $461 price target. In contrast, RBC Capital raised its target to $540 from $525, and Morgan Stanley lifted its target to $448 from $415. Barclays also raised its target to $428 from $397. Evercore ISI Group maintained an Outperform rating with a $500 target. F5 and Oracle announced a collaboration to strengthen application security for customers on Oracle Cloud Infrastructure.

What The Data Shows

The stock opened at $431.00, a 6.2% gap down from the prior close of $459.36. It hit a session low of $397.80 at 9:35 AM ET. Volume was 0.3 million shares, or 0.5x the three-month daily average. The stock printed five fresh 52-week lows on October 28, 2026. Over the last eight sessions, the stock had gained 9.0% before this drop.

Fundamentals show a market cap of $26.1 billion and a P/E of 36.6. Revenue grew 9.4% TTM with a net margin of 22.0%. Insider activity shows 10 sells totaling $6.8 million in the last 90 days, with no buys. Recent sales include CTO Michael Montoya and Chief Product Marketing Officer John Maddison on September 14, 2026.

What To Watch

Investors will monitor how the market digests the fiscal 2027 guidance of 8% to 9% revenue growth. The upcoming earnings call presentation details the operational drivers behind the margin contraction and inventory levels.