earnings Published Nov 01, 2026, 1:36 PM UTCUpdated Nov 01, 2026, 1:36 PM UTC

F5's 20% Drop Put Slower 2027 Growth Ahead of a Strong Quarter

F5 beat quarterly expectations and grew product revenue 23%, yet investors focused on slower fiscal 2027 revenue growth, lower margins and inventory commitments made to secure components.

F5's fiscal fourth quarter was stronger than the stock reaction suggested. Revenue rose 13% to $917 million, product revenue climbed 23%, and non-GAAP earnings reached $4.42 per diluted share. The shares nevertheless fell about 20% after the report because the outlook reset expectations for fiscal 2027.

Management guided to 8% to 9% revenue growth for the new fiscal year, below the 11% achieved in fiscal 2026. The mix also matters. Systems revenue grew 31% for the full year, helped by a hardware refresh, while software revenue rose 8% and services revenue increased 3%. F5 expects systems growth to be stronger in the first half of fiscal 2027, so the comparison could become harder later in the year.

Margins provide a second reason for caution. Fiscal fourth-quarter non-GAAP operating margin fell to 33.7% from 37.0% a year earlier even though revenue grew. F5 said its fiscal 2027 gross-margin outlook reflects higher component costs. The company also built inventory and prepaid suppliers to secure parts, contributing to fourth-quarter operating cash flow of $118 million, down from $208 million a year earlier.

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Those working-capital moves are not automatically a sign of weak demand. They can protect shipments when supply is tight. The risk is that F5 commits cash and inventory for demand that arrives later than expected, especially after the strongest part of the systems refresh passes.

There are still meaningful offsets. Software is expected to return to solid double-digit growth, and the board added $1.5 billion to the repurchase authorization on top of $322 million remaining. F5 also forecast fiscal 2027 non-GAAP EPS of $18.00 to $18.30, above the $17.49 earned in fiscal 2026.

The selloff therefore reflects a valuation reset more than a failed quarter. Investors had rewarded F5 for accelerating product growth, but the company is now asking them to accept slower overall expansion, modest margin pressure and more cash tied up in supply. The next useful check will be fiscal first-quarter results, when revenue guidance of $875 million to $895 million should show whether software growth can offset the expected cooling in systems.