Arm Holdings (ARM)

Investment Review After Q4 FY2026 Earnings (2026.05.06)

TL;DR

Arm is the world's IP/architecture monopoly: 99% of smartphones, 50%+ hyperscaler CPUs, now expanding into AI data-center silicon via the new Arm AGI CPU product family. Just reported: Q4 FY26 revenue $1.49B record (+20% YoY), Adj OM 49%, EPS $0.60 record; data-center royalties doubled YoY; AGI CPU demand $1B → $2B (FY27+28) — strong. Q1 FY27 guide $1.26B (+20% YoY), EPS $0.40 ±$0.04; FY27 royalty + license both ~20%; FY31 target $25B revenue / $9 EPS — strong. Stock at $237 with 270x P/E(ttm), +57% post last quarter end from $151 close — extreme on AI-CPU TAM expansion to $100B+ by 2030.

Summary

Finding	Assessment
5-Year Stock Return	Stock $237 today, up >360% from $51 IPO (Sep 2023) in 2.5 years. TTM OP grew $78M → $900M (12x) as post-IPO SBC normalized; OM% 3% → 29%. Stock journey $51 IPO → $165 peak → $111 trough → $151 (Q4 FY26) → $237 (+57% post last quarter end on AGI CPU demand 2x).
Business Model	Pure-play semiconductor IP/architecture monopoly: ~99% smartphone, 50%+ hyperscaler CPU. Royalties (~54%, per-chip toll) + Licensing (~46%, upfront IP fees). Adding NEW silicon products from FY27 (Arm AGI CPU). 350+ billion cumulative chips shipped; 22M+ developers.
Competitive Moat	WIDE ISA near-monopoly + 22M+ developer ecosystem + CSS pricing power + new AGI CPU silicon platform. RISC-V the only structural long-term threat. 50+ partners endorsed AGI CPU strategy within 6 weeks.
Past Drivers (Since IPO)	CSS pricing leverage (21+ licenses, all top-4 Android OEMs); data-center royalties doubling YoY (AWS Graviton, Google Axion, MSFT Cobalt, NVIDIA Vera); Armv9 mobile mix; SoftBank R&D funding; Apple Silicon validation. AGI CPU launches a new product category.
Recent Stock Move	Stock $237, +57% post last quarter end vs $151 (Q4 FY26 close); above $165 (Jun 2025 prior peak). AGI CPU demand 2x ($1B → $2B+) + record FY26 results triggered the rip. After-hours -5.9% on May 6 = early profit-taking on extreme P/E.
Revenue Trend	FLAT (high) Rev YoY: 20% (Q4 FY26) → 20% (Q1 FY27E). Third consecutive 20%+ year. Data-center royalties doubling YoY again.
Margin Trend	CONTRACTING OM%: 29% (Q4 FY26) → 13% (Q1 FY27E) on R&D ramp + lower guide; Adj OM 49% Q4 → ~30% Q1 FY27E.
TTM OP Trajectory	FLAT TTM OP QoQ: 3% (Q4 FY26) → 6% (Q1 FY27E). TTM OP $900M; recovery from $78M trough continues.
Key Opportunities	Arm AGI CPU (silicon-product step-function: $1B→$2B+ demand → $15B FY31); data-center royalties doubling YoY (AWS, Google, MSFT, NVIDIA); CSS rate escalator; Meta multi-gen anchor partnership; SAP/Cloudflare/F5/SK Telecom/OpenAI design wins.
Key Risks	P/E 270x extreme — most expensive in our coverage by 2x. AGI CPU GM dilutive (chip ~30-35% vs IP ~95%); customer tension w/ licensees; OpEx +30% YoY; Qualcomm/Nuvia litigation; RISC-V long-term structural threat in China/IoT (Arm China ~17% rev); mobile units flipping negative.
Catalysts	Q1 FY27 print (~Aug 2026, guide $1.26B); AGI CPU first production-ship revenue (Q4 FY27 ~$90M); CSS V3+ + Armv9 mobile mix progression; data-center royalty share crossing 20%+; Qualcomm/Nuvia litigation rulings; AGI CPU supply-chain milestones.
P/E(ttm) Valuation	EXTREME at 270x (range: 123x–431x post-IPO). Most expensive in our coverage by 2x. AGI CPU + data-center growth + WIDE moat justify a premium, but 270x requires flawless ramp + 20%+ growth + margin expansion for 5+ years. Q1 FY27E P/E 270x leaves no room for execution misses.

Q4 FY2026 Key Data

Record Q4: Rev $1.49B (+20% YoY), Licensing $819M (+29%), Royalty $671M (+11%); Adj OM 49%, Adj EPS $0.60. FY26 rev $4.92B (+23%) — third consecutive 20%+ year. ACV +22%.
AGI CPU demand $1B → $2B+ across FY27+28 in 6 weeks since launch. 2x perf/rack vs x86; $10B capex savings/GW. Meta lead partner / co-developer. 50+ partners endorsed.
DC royalties more than doubled YoY again; ~50% hyperscaler share. Google TPU 8t/8i replaced x86 w/ Axion (80% perf gain); AWS Graviton, MSFT Cobalt, NVIDIA Vera all on Arm.

Key Takeaways from Earnings Call

AGI CPU = new silicon-product biz on top of IP/CSS — second growth vector. Demand 2x in 6 weeks ($1B → $2B+ FY27+28). $1B target maintained while securing supply. First revenue Q4 FY27 (~$90M). FY31 $25B / $9 EPS.
DC royalties doubled YoY again — projected to double in FY27. Soon Arm's largest biz. AGI CPU 136 cores; core counts going to 256/512. DC CPU TAM >$100B by 2030 on agentic AI (4x CPU capacity).
FY27 outlook: 20% royalty + 20% license; license ~60% H2. Q1 FY27 $1.26B ±$50M (+20% YoY), OpEx $760M, EPS $0.40 ±$0.04. OpEx +30% on AGI R&D. Mobile units negative; offset by Armv9/CSS + cloud AI.

Key Segments and Revenue Mix (FY2025)

Revenue Stream	Revenue	% of Total	Key Details
Royalty	$2,168M	54%	Per-chip tolls on 7.9B chips/quarter. +20% YoY. v9/CSS driving rate increases. Data center royalties growing >100% YoY.
License & Other	$1,839M	46%	Upfront IP access fees, CSS, TLA, ATA. +29% YoY. Includes ~$200M/Q from SoftBank NRE. ACV +28% YoY.

Business Model

R&D / IP CREATION

~7,000 engineers designing
CPU, GPU, NPU, ISP cores
CSS (Compute Sub-Systems)
$2.1B R&D spend (52% of rev)
SoftBank-funded NRE ($200M/Q)

IP Designs / Architecture →

ARM HOLDINGS

License IP designs to chipmakers
Collect per-chip royalties
CSS = pre-integrated platforms
97% gross margin (pure IP)
$4B revenue, 310B+ cumulative chips

Licenses / Royalties → $ Revenue

LICENSEES

Apple (custom cores)
Qualcomm (Snapdragon/Oryon)
AWS (Graviton), Google (Axion)
Microsoft (Cobalt), NVIDIA (Vera)
Arm China (17% of rev), Samsung, MediaTek

Moat Assessment: WIDE

Arm ISA = de facto standard mobile + increasingly cloud/AI — near-monopoly. 99% smartphones, 50%+ hyperscaler CPUs. 350B+ chips, 22M+ devs = massive lock-in. Migration cost prohibitive.
Network effects strengthen w/ each chip + each AI workload. More chips → more dev tools → more apps → more demand. Arm devs 10x RISC-V. AGI CPU adds silicon-product moat (50+ partners endorsed).
RISC-V = primary long-term threat but not yet credible in perf markets. Free, open-source. Lacks mature ecosystem + high-perf cores. 5-10 yr gap. Arm China (~17%) most exposed to policy shift.

Stock vs. Earnings — 5-Year Performance

Arm IPO’d Sep 2023 at $51; up >360% to $237 in 2.5 yrs. Journey: $51 IPO → $165 → $111 → $151 (Q4 FY26) → $237 (+57% post last quarter end). FY26 rev $4.92B record (+23%), EPS $1.77.
Arm = world’s most important semi IP co. ~99% smartphones, 50%+ hyperscaler CPUs. 350B+ chips shipped, 22M+ devs. Revenue: royalties (~54%) + licensing (~46%) — adding silicon from FY27.
R40 >40% in 11 of 13 qtrs since IPO, on 20%+ rev + recovering OM (3% → 29%). R40 49% Q4 FY26. Scorecard 6/6 to 2/3 by qtr; averaging 5/6 last 4.

Key Drivers of Operating Profit Growth (Since IPO)

CSS (Compute Sub-Systems) = primary royalty-rate escalator + AGI CPU foundation. CSS pre-integrated platforms cut chip design time ~50%, command higher royalty rates than traditional core licenses. 21+ CSS licenses across 12+ companies; all top-4 Android OEMs shipping CSS. CSS V3 powers Microsoft Cobalt 200 (132 cores). Mgmt: CSS could be 50%+ of royalties within a few years. AGI CPU is a "compute die" extension of CSS — same engineering leverage.
Data-center CPU adoption — now Arm’s second growth vector via the AGI CPU product line. Royalties doubled YoY in Q4 FY26 + projected to double again in FY27. AWS Graviton, Google Axion (TPU 8t/8i 80% perf gain), Microsoft Cobalt, NVIDIA Vera (256-CPU rack) — all Arm. AGI CPU production silicon = 2x perf/rack vs x86; $10B capex savings per gigawatt. CEO: by end of decade, largest CPU share will be Arm.
Agentic AI = structural CPU demand multiplier; DC CPU TAM >$100B by 2030. Each agent runs jobs on independent cores; Arm AGI CPU has 136 cores (2x x86); CEO sees 256/512 cores over time. AI requires >4x today's CPU capacity. NVIDIA, AWS, Google all on Arm. SAP migrating core DB to Arm; Cloudflare, F5, SK Telecom, OpenAI, Cerebras, Rebellions — all designed in. Architecture license = recurring royalty per chip.

Quarterly Key Metrics

	Q1 2024	Q2 2024	Q3 2024	Q4 2024	Q1 2025	Q2 2025	Q3 2025	Q4 2025	Q1 2026	Q2 2026E
Quarter End	Mar 2024	Jun 2024	Sep 2024	Dec 2024	Mar 2025	Jun 2025	Sep 2025	Dec 2025	Mar 2026	Jun 2026
Stock Price	$125	$164	$146	$126	$108	$165	$140	$111	$151	$237
Stock QoQ	+66%	+31%	-11%	-14%	-14%	+53%	-16%	-21%	+36%	+57%
Rev YoY	47%	39%	5%	19%	34%	12%	34%	26%	20%	20%
OM%	2%	19%	8%	18%	33%	11%	14%	15%	29%	13%
R40 (Rev YoY + OM%)	49%	58%	12%	37%	67%	23%	49%	41%	49%	33%
TTM OP ($M)	$78	$148	$408	$444	$831	$763	$862	$872	$900	$950
TTM OP QoQ	+70%	+92%	+175%	+9%	+87%	-8%	+13%	+1%	+3%	+6%
FCF/OP ttm	1288%	552%	142%	147%	21%	88%	134%	112%	109%	106%
Debt/EBITDA	0.2x	0.2x	0.2x	0.2x	0.2x	0.2x	0.2x	0.2x	0.2x	0.2x
P/E ttm	431x	409x	241x	166x	145x	252x	180x	148x	178x	270x

Recent Stock Performance & Drivers

Stock $237, +57% post last quarter end from $151 — massive AGI CPU re-rate. Journey $51 IPO → $165 → $111 → $151 → $237. Quarterly swings -21% to +66% on licensing + AI narrative.
TTM OP $900M Q4 FY26, +12x from $78M trough as SBC normalized. FY24 OM 3% → 29% Q4 FY26. Run-rate $5.9B at 49% Adj OM. R&D ramp +30% YoY reflects AGI CPU.
P/E(ttm) re-expanded 178x → 270x post last quarter end — most expensive in our coverage. Monopoly + new silicon-product upside. R40 49% Q4. 270x requires flawless 5+ yr ramp.

Opportunities

Arm AGI CPU = step-function expansion. $1B → $2B+ FY27+28; $15B FY31 target. 2x perf/rack vs x86, $10B capex savings/GW. Meta lead partner; SAP, Cloudflare, OpenAI, Cerebras designed in. First rev Q4 FY27 (~$90M).
DC royalties more than doubled YoY again Q4 FY26; doubling in FY27. Every GPU/TPU host on Arm: Graviton, Axion, Cobalt, Vera. DC CPU TAM >$100B by 2030 on agentic AI. Higher core counts drive ASP.
CSS rate escalator + Armv9 mix = pricing leverage w/o unit growth. CSS preferred by non-Apple/Qualcomm; cuts design time ~50%. All top-4 Android OEMs shipping CSS. CSS V3 → AGI CPU = same leverage.

Challenges

P/E 270x is most expensive in our coverage by 2x — extreme. Prices flawless AGI ramp + 20%+ growth for 5+ yrs. Licensing miss / AGI supply / RISC-V scare → -20%+ drawdowns historically. AH -5.9% May 6 = profit-taking.
AGI CPU mix shift dilutive to GM (chip ~30-35% vs IP ~95%). Chip biz 35% OM FY31 vs IP 65%. OpEx +30% YoY on R&D + supply-chain. Customer tension: competes with own licensees (AWS, NVIDIA).
Qualcomm/Nuvia litigation + RISC-V long-term risks remain. Qualcomm ~10% rev; adverse ruling weakens enforcement. RISC-V 5-10 yr maturation could erode IoT/embedded. Arm China ~17% most exposed.

Next 12 Months

Q1 FY27 guide $1.26B ±$50M (+20% YoY); royalty/license both +20%; EPS $0.40 ±$0.04. Beat >$1.31B confirms FY27 trajectory. License back-end weighted (~60% H2).
FY27: 20% royalty + 20% license growth. AGI CPU first rev Q4 FY27 (~$90M) → ~$910M FY28. Margin expansion exiting yr. FY31 $25B / $9 EPS reaffirmed. Mobile units negative; Armv9/CSS + cloud AI offset.
AGI CPU supply-chain progress = highest-impact near-term variable. $1B target maintained while securing supply for $2B demand. Q3 FY27 firmer Q4 estimate + early FY28 indications.

Next 12-24 Months

AGI CPU → $15B by FY31 = most material long-term variable. $2B+ FY27+28 already; core counts to 256/512. Chip biz OP+ in FY28; OM ~35% FY31. Meta concentration risk; supply gates velocity.
DC royalty share could exceed mobile by FY28. Already doubling annually; ~50% top hyperscalers. NVIDIA Vera + Axion + Graviton + Cobalt all multi-gen. Higher core counts drive ASP.
Windows on Arm + auto + IoT = three additional volume markets. Snapdragon X + MSFT push could open PC. Auto double-digit on ADAS. CSS v3+ + DreamBig (Ethernet/RDMA IP) extends platform offering.

Core Metrics Scorecard

	Q3'21	Q4'21	Q1'22	Q2'22	Q3'22	Q4'22	Q1'23	Q2'23	Q3'23	Q4'23	Q1'24	Q2'24	Q3'24	Q4'24	Q1'25	Q2'25	Q3'25	Q4'25	Q1'26	Q2'26E
Quarter End	Sep21	Dec21	Mar22	Jun22	Sep22	Dec22	Mar23	Jun23	Sep23	Dec23	Mar24	Jun24	Sep24	Dec24	Mar25	Jun25	Sep25	Dec25	Mar26	Jun26
R40 > 40%											✅	✅			✅		✅	✅	✅
R40 accelerate										✅	✅	✅		✅	✅		✅		✅
TTM OP QoQ > 10%					✅	✅					✅	✅	✅		✅		✅
TTM OP QoQ accelerate										✅	✅	✅	✅		✅		✅		✅	✅
TTM FCF/OP > 60%				❌	❌	❌	✅	✅	✅	✅	✅	✅	✅	✅	❌	✅	✅	✅	✅	✅
Debt/EBITDA < 3.5				✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
Total passes	—	—	—	—	—	—	—	—	2	4	6	6	4	3	5	2	6	3	5	3
Stock QoQ	—	—	—	—	—	—	—	—	—	+40%	+66%	+31%	-11%	-14%	-14%	+53%	-16%	-21%	+36%	+57%
P/E ttm	—	—	—	N/M	N/M	N/M	N/M	N/M	296x	871x	431x	409x	241x	166x	145x	252x	180x	148x	178x	270x

ARM hit 6/6 passes in 4 of 13 qtrs since IPO — strong fundamentals when licensing + royalties align. 6-pass qtrs show R40 >40% + TTM OP >10% QoQ on 97% GM. Stock +66% / +31% on first two 6-pass; later 6-pass saw -14% / -16% on valuation compression.
Scorecard oscillates 2-3 to 5-6 passes on licensing lumpiness, not underlying deterioration. Large licensing deal = TTM OP jumps + R40 spikes; next qtr normalizes. Q2 2025 hit 2 passes on -8% TTM OP QoQ + R40 dipping to 23%.
FCF/OP + Debt/EBITDA pass every qtr (13/13) — hallmark of pure IP biz. 97% GM, minimal CapEx, 0.2x Debt/EBITDA. FCF/OP >100% because SBC is the only material non-cash cost. Permanent quality floor.

Chart: R40 vs Stock Price (Since 2020)

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

Source: SEC EDGAR 20-F annual filings, 6-K quarterly filings, company earnings conference calls.

Disclaimer: This report is for educational purposes only. NO investment advice.