Cisco Systems (CSCO)

Investment Review After Q3 FY2026 Earnings (2026.05.13)
TL;DR
Cisco is the dominant enterprise networking vendor pivoting into AI infrastructure via Silicon One ASICs and Acacia coherent optics. Q3 FY2026: revenue +12% YoY ($15.8B record), OM 25%, R40 37%, TTM OP $14.6B; both top and bottom line beat the high end of guidance. Hyperscaler AI orders raised to $9B for FY2026 (4.5x FY2025) with $4B in AI revenue; 5 new hyperscaler design wins including the first two P200 scale-across systems. The stock at $102 (31x P/E) is at the high end of its decade-long range; the risk is memory cost pressure and AI hyperscaler order concentration.

Summary

FindingAssessment
5-Year Stock ReturnStock currently $102, up 89% from $54 (4.5 years ago). TTM OP recovered to $15.4B (vs $13.5B trough). P/E(ttm) expanded from 17x to 31x as AI networking re-rated the stock. 2.1% dividend + 4% buyback yield supports total return.
Business ModelSTRONG. Dominant enterprise networking vendor. ~$63B FY26 revenue, $31.2B ARR, $14.6B TTM OP. Five product categories: Networking 50%, Security/Splunk 14%, Collab 7%, Observability 2% + Services 27%. 49% subscription revenue. Silicon One + Acacia for AI infrastructure.
Competitive MoatNARROW. Installed base + Silicon One verticalization create deep switching costs. Splunk + Cisco Secure add high-margin platform stickiness. But growth gated by hardware maturity and competition from Arista, Palo Alto, NVIDIA Spectrum-X, and white-box networking.
Past 5-YR DriversSoftware/subscription transition (49% of revenue), Splunk acquisition adding $3B+ security/observability ARR, campus refresh (Cat 9K, Wi-Fi 7), AI hyperscaler orders inflecting from $2B FY25 to $9B FY26 target. FCF consistently $10-13B.
Recent Stock MoveStock currently $102, up 31% from $78 (Q3 quarter-end close). Post-print AH +17%. AI order raise ($9B FY26, ≥$6B FY27 revenue), record Q3 print, and FY26 guide raise drove the move. P/E(ttm) expanded from 23x to 31x.
Revenue TrendACCELERATING Rev YoY: +12% (Q3 2026) → +15% (Q4 2026E).
Margin TrendSTABLE OM%: 25% (Q3 2026) → 24% (Q4 2026E). GM 66% (-260bps YoY) on memory + mix; offset by price + productivity.
TTM OP TrajectoryEXPANDING TTM OP QoQ: +5% (Q3 2026) → +6% (Q4 2026E). TTM OP $14.6B → $15.4B Q4E.
Key OpportunitiesHyperscaler AI orders raised to $9B FY26 (4.5x FY25) and revenue $4B; FY27 AI rev ≥$6B (+50%); Silicon One P200 first scale-across wins; Acacia >$1B/Q. Campus refresh "multi-year, multi-billion"; Wi-Fi 7 record orders. Galileo + Astrix acquisitions for agentic identity.
Key RisksMemory cost pressure (Q4 more acute); Splunk on-prem→cloud transition still drags Security; restructuring $1B pre-tax over Q4 FY26 + FY27; AI hyperscaler order concentration with non-linear timing; price-led order acceleration may not repeat; Arista/Spectrum-X competition.
CatalystsQ4 FY26 print (Aug 12) is GM trough test + AI order ramp; Cisco Live Las Vegas May 31-Jun 4; Galileo/Astrix close (security expansion); FY27 formal guide in 90 days; Universal Quantum Switch productization milestones.
P/E(ttm) ValuationEXPENSIVE at 31x (range: 14x-31x over 20 quarters). Highest in two decades, at the very top of the historical range. On FY26 EPS midpoint ($4.28), forward P/E ~24x. Sustainability hinges entirely on AI hyperscaler orders compounding into FY27 ≥$6B revenue and beyond. Reversion to FY25 trough scenario (single-digit growth, 22x P/E) implies ~$94 (-8%); bull case (AI rev $8B+ FY27 at 28x) implies ~$120 (+18%).

Q3 FY2026 Key Data

Key Takeaways from Earnings Call

Key Segments and Revenue Mix (FY2025)

CategoryRevenue% of TotalKey Details
Networking$28.3B50%Switches, routers, wireless, optics. Q3 FY26 +25% YoY. AI hyperscaler orders $9B FY26 target; Acacia >$1B/Q.
Security$8.1B14%Splunk SIEM, SASE, firewalls, XDR, Hypershield, AI Defense. Q3 FY26 flat YoY on cloud transition.
Collaboration$4.2B7%Webex, devices, contact center. Q3 FY26 -1% YoY. Stable, low-growth.
Observability$1.1B2%Splunk Observability, AppDynamics, ThousandEyes. Q3 FY26 +3% YoY.
Services$15.0B27%Maintenance, consulting, training. Q3 FY26 -1% YoY (contract timing). Recurring.

FY2025 ended July 2025. Q3 FY2026 growth rates shown for context.

Business Model

SUPPLIERS

Contract manufacturers (Foxconn, Flex)
Foundries (TSMC for Silicon One)
Memory (Nanya 3-yr deal, DDR5 ramp)
Acacia (internal coherent optics)
Silicon One ASICs (internal IP)

Components / Manufacturing
CISCO

Networking switches, routers, Wi-Fi
Splunk security & observability
Silicon One A/K/E/P/G ASICs
Acacia 100G/400G/800G coherent optics
$62.9B FY26 rev, $31B ARR, $14.6B TTM OP

Networking / Security / SaaS $ Revenue
CUSTOMERS

Hyperscalers (AI back-end + scale-across)
Enterprises (campus refresh, Cat 9K, Wi-Fi 7)
Service providers & telcos
Government & public sector
Neocloud & sovereign AI builders

Moat Assessment: NARROW

Stock vs. Earnings — 5-Year Performance

Chart 1: Stock vs TTM OP & FCF

Past 5-Year Key Drivers

Quarterly Key Metrics

USDQ3 '24Q4 '24Q1 '25Q2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26Q4 '26E
Quarter EndApr 24Jul 24Oct 24Jan 25Apr 25Jul 25Oct 25Jan 26Apr 26Jul 26
Stock Price$50$48$53$59$62$69$68$77$78$102
Stock QoQ-1%-5%+12%+11%+4%+12%-1%+13%+1%+31%
Rev YoY-13%-10%-6%+9%+11%+8%+8%+10%+12%+15%
OM%26%20%27%22%24%22%25%25%25%24%
R4013%10%21%32%35%29%32%35%37%38%
TTM OP ($M)15,67413,75712,90112,91412,92013,31713,28014,00014,62915,439
TTM OP QoQ-5%-12%-6%+0%+0%+3%-0%+5%+4%+6%
FCF/OP79%74%88%99%99%100%96%87%81%71%
Debt/EBITDA1.5x1.6x1.7x1.6x1.5x1.4x1.4x1.5x1.5x1.5x
P/E(ttm)16x17x20x23x23x25x26x27x25x31x

Recent Stock Performance & Drivers

Opportunities

Challenges

Next 12 Months

Next 12-24 Months

Core Metrics Scorecard

Six proprietary criteria. Quarters scoring ≥4 historically align with stock outperformance; ≤2 with underperformance. Q3 FY2026 scored 3/6 (Q4E: 4/6).

Quarter EndQ1 '22Q2 '22Q3 '22Q4 '22Q1 '23Q2 '23Q3 '23Q4 '23Q1 '24Q2 '24Q3 '24Q4 '24Q1 '25Q2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26Q4 '26E
R40 > 40%
R40 accelerate
TTM OP QoQ > 10%
TTM OP QoQ accelerate
TTM FCF/OP > 60%
Debt/EBITDA < 3.5
Total Passes23324455222244333434
Stock QoQ+3%+16%-12%-24%-6%+20%+9%-1%+5%-7%-1%-5%+12%+11%+4%+12%-1%+13%+1%+31%
P/E(ttm)20x22x19x15x14x17x18x16x16x15x16x17x20x23x23x25x26x27x25x31x

Chart: R40 vs Stock Price (Since 2020)

Chart 2: R40 vs Stock Price

Chart: Scorecard Total Passes vs Stock Price (Since 2020)

Chart 3: Total Passes vs Stock Price
Source: SEC EDGAR annual and quarterly filings, Cisco Q3 FY2026 earnings press release + conference call + slides (May 13, 2026), management commentary on Project Glasswing, Galileo + Astrix acquisitions, FY26/FY27 guidance.
Disclaimer: This report is for educational purposes only. NO investment advice.