Cisco Closes Fiscal 2026 on AI Supercycle, But Margin Compression Tempts the Tape
Cisco reported fiscal fourth-quarter and full-year 2026 earnings on August 12, with non-GAAP EPS of $1.22, up 23% year over year, alongside a GAAP operating margin of 24.7% and a non-GAAP operating margin of 24.3% (Cisco Investor Relations). The stock has risen over 60% in 2026 amid what the company characterizes as an AI "supercycle," though shares pulled back on the earnings reaction (MarketWatch).
The headline results cap a fiscal year in which AI infrastructure demand became the dominant narrative for Cisco's networking business. Networking product orders rose over 50% in fiscal 2026, and the company guided to roughly $9 billion in AI infrastructure orders for the full year (Reuters). That order growth is the top-line engine; the gross-margin trajectory is the friction.
Cisco reported a 66.3% GAAP gross margin for the fourth quarter, down from 68.4% in the year-earlier period (MarketWatch). For its fiscal first-quarter 2027 outlook, the company forecast an adjusted gross margin of 65% to 66%, slightly below market estimates of 66.10% (Reuters). The guide-down, however modest, lands on top of a margin path that has been grinding lower all year. Q3 fiscal 2026 showed a GAAP total gross margin of 63.6%, with product gross margin at 61.9% and services gross margin at 69.2% (Cisco Investor Relations). Q1 fiscal 2026 product gross margin on a GAAP basis was 64.5% (Cisco Investor Relations). And in the fiscal second quarter, an adjusted gross margin of 67.5% came in below analysts' estimates, sending shares down 7% (Yahoo Finance).
The pattern is consistent: revenue and order growth powered by AI-related networking demand, but with a dilutive effect on gross margin as the product mix shifts toward lower-margin infrastructure hardware. Operating leverage at the operating-margin line (24.7% GAAP in Q4) has partially absorbed the gross-margin compression, but the first-quarter guide suggests management does not expect that dynamic to reverse immediately.
The company also guided fiscal Q1 2027 revenue to $15.0 billion to $15.2 billion, an outlook first telegraphed in its Q1 fiscal 2026 release (Cisco Investor Relations). Separately, Cisco announced plans earlier in the fiscal year to cut approximately 4,000 jobs, roughly 5% of its workforce, as part of an AI-focused restructuring (Reuters).
The margin question is the one investors should be tracking. A 60%-plus stock run prices in not just continued order growth but also operating-margin expansion as AI revenue scales. Cisco's own guidance for Q1, however, points to gross margin at or slightly below Street expectations, and the full-year trajectory shows sequential compression at the gross-margin line across multiple quarters. The restructuring, if executed, could lower the operating-cost base and support non-GAAP operating margin. But the gap between the revenue narrative (an AI supercycle driving record results) and the margin reality (gross-margin compression quarter over quarter) is where the earnings reaction lives.
For a company whose stock has already run 60% in a single year, the bar for upside surprise has moved higher. The Q4 results are strong on the top line; the market's pullback reflects the cost of getting there.
