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Arm Holdings plc American Depositary Shares (ARM) — chart, structure and Closelook read

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Company snapshot — Arm Holdings plc American Depositary Shares

ARM in five paragraphs: what it makes and sells, where it sits in the Closelook stack, who it is priced against, why we track it, what we watch. Research diary, not advice.

What it does
Arm designs and licenses the processor architecture and CPU designs that other companies build into their chips; it makes no chips itself. Licensees pay a fee for the design and a royalty on every chip shipped, which is why nearly every smartphone processor carries an Arm royalty. The company has been extending the same model from phones into data-centre processors with its Neoverse designs, into automotive and PCs, and into complete compute subsystems that licensees can take to a foundry with less design work of their own. It is headquartered in Cambridge, England, majority-owned by SoftBank Group and listed in New York through American Depositary Shares.
Where it sits in the stack
In Rubin, Arm sits in Layer 1, EDA & Chip IP — the software and intellectual-property layer that precedes the chip. It earns from the design phase and from every unit shipped, so it is exposed to volume across the whole stack without owning a fab, a tool or a wafer.
Who it is priced against
The comparison the market draws is with the other design-phase names — Synopsys and Cadence on the tools side, Nvidia, AMD and Qualcomm as the architects that licence it — and with the open RISC-V architecture as the alternative its licensees keep in reserve.
Why Closelook tracks it
It is a Rubin constituent, a Nasdaq-100 name and a member of our Euro-AI 50; the dailies return to it as the design-side name in the chip sort.
What the diary watches
Whether royalty rates per chip keep rising with the newer architectures and whether the data-centre licensees convert designs into volume.

Arm Holdings plc American Depositary Shares (ARM) trades on US exchanges in UK, classified under Technology, and sits in Layer 1 of the build-out stack. Constituent of Rubin Build-Out 100 and Euro-AI 50.

The Closelook company score reads 55/100 composite (momentum 51, quality 67, valuation 9) across 7 modules — the full breakdown, chart structure and analog history load live above.

Written by the Closelook desk, 2026-09-17. Descriptive, refreshed with the registry; corrections welcome via the imprint. closelook.net is an investment research diary — market structure, index membership and scores are our own readings, not investment advice. Related: ARM news on the tape · index compare · sector dispersion · scanner.

Signals for this name

Every Closelook reading that exists for ARM, from the same nightly bakes the boards use. Research diary readings, not advice.

The Street on this name 2 analyst actions on the wire · latest: price target by Piper Sandler, 2026-09-09

The Street on this name

Analyst actions and the latest print for ARM from the Closelook wires — third-party opinions on the record, not our readings.

  • Price target Piper Sandler — target 320 Target set to $320 (+21.1% to spot) 2026-09-09
  • Price target Raymond JamesMember Login — target 641 Target set to $641 (+168.4% to spot) 2026-08-25

2 actions on the analyst wire since 2026-08-13: 2 target changes. Analyst wire → · Earnings wire →

Who it is priced against Chip IP and architecture · 5 names with week and year-to-date

Peer group

Chip IP and architecture

Curated competitor set — who the market prices this name against, not just who shares its sector.

Compared against ARM on the nightly bakes; the Peers tab ranks the cohort on the Closelook scores where it exists.

Versus its index Rubin Build-Out 100 · Euro-AI 50 — the name, its sleeve and the index over day, week and month

Versus its index

The name against its Closelook index and its own sleeve — equal-weight, nightly closes.

Rubin Build-Out 100 · as of 2026-09-17

DayWeekMonth3 months
ARM+8.6%+4.2%+4.6%−36.8%
EDA & Chip IP+3.0%−0.7%−4.7%—
Rubin Build-Out 100+1.5%−2.2%−2.9%—

Against the index: 6.4 pts ahead on the week, 7.5 pts ahead on the month; against its EDA & Chip IP sleeve 9.3 pts ahead on the month.

Euro-AI 50 · as of 2026-09-17

DayWeekMonth3 months
ARM+8.6%+4.2%+4.6%−36.8%
Euro-AI 50+1.7%+0.9%−4.1%—

Against the index: 3.3 pts ahead on the week, 8.7 pts ahead on the month.

Returns from the index workers’ nightly closes; equal-weight sleeves. A relative reading from the research diary, not advice.

Weather around the name 4 macro readings: Money Temperature, Factor regime, Sector × region …

The weather around this name

Macro readings that apply by membership — the regime, the factor tape, the sector cell, the funding backdrop.

  • Money Temperature Composite 55/100 · S&P 500 fund at 58, above its 50- and 200-day averagesEight instruments scored on position, momentum, volume, volatility and fragility — the regime every name trades inside. Temperature lab → 2026-09-17
  • Factor regime Momentum leading — risk appetite buildingMomentum against low volatility (SPMO / SPLV): above its 50-day trend, 94th percentile of the window, +2.7% over 20 sessions. Factor regime → 2026-09-17
  • Sector × region Technology in Europe: +0.3% week · +2.1% month · +10.9% quarter · +14.5% yearThe Sector Engine cell this name lives in, from EXH1.XETRA; the 11 × 4 matrix shows where its sector is being bought and where it is being sold. Sector Engine → 2026-09-16
  • Sovereign pressure Index 0.00 · down 0.41 over 21 sessionsG7 long-end yields, 10s30s and the slope — the funding weather for every balance sheet on this site. Sovereign pressure → 2026-09-17

FAQ · from the current data · as of 2026-09-18

Quick answers

What is Arm Holdings plc American Depositary Shares (ARM)?

Arm Holdings plc American Depositary Shares trades as ARM on the US exchange (UK) and is classified under Technology in the Closelook research universe, as of the registry build of 2026-09-18.

Is ARM in a Closelook index?

Yes — Arm Holdings plc American Depositary Shares is a constituent of Rubin Build-Out 100 and Euro-AI 50, as of 2026-09-18.

What is Arm Holdings plc American Depositary Shares's Closelook composite score?

55 out of 100, with momentum 51, quality 67 and valuation 9 sub-scores, as of 2026-09-18. Scores are Closelook's own research readings, not ratings or investment advice.

Where does ARM trade against its moving averages?

Widest analyst gap: 41.5% off its high — yet the $363 consensus implies +37.1%. As of 2026-09-17 — a technical state from the nightly Closelook bake, not advice. The Technical tab carries the full row.

How is ARM doing against its Closelook index?

Over the past month Arm Holdings plc American Depositary Shares is +4.6% against −2.9% for the Rubin Build-Out 100 — 7.5 points ahead of its index, as of 2026-09-17. Its EDA & Chip IP sleeve is −4.7% over the same month. The “Versus its index” table on this page carries the day, the week and the month for the name, its sleeve and the index.

What does Arm Holdings plc American Depositary Shares do?

Arm designs and licenses the processor architecture and CPU designs that other companies build into their chips; it makes no chips itself. Licensees pay a fee for the design and a royalty on every chip shipped, which is why nearly every smartphone processor carries an Arm royalty. The company has been extending the same model from phones into data-centre processors with its Neoverse designs, into automotive and PCs, and into complete compute subsystems that licensees can take to a foundry with less design work of their own. The comparison the market draws is with the other design-phase names — Synopsys and Cadence on the tools side, Nvidia, AMD and Qualcomm as the architects that licence it — and with the open RISC-V architecture as the alternative its licensees keep in reserve.

Where does Arm Holdings plc American Depositary Shares sit in the AI build-out?

In Rubin, Arm sits in Layer 1, EDA & Chip IP — the software and intellectual-property layer that precedes the chip. It earns from the design phase and from every unit shipped, so it is exposed to volume across the whole stack without owning a fab, a tool or a wafer. It is a Rubin constituent, a Nasdaq-100 name and a member of our Euro-AI 50; the dailies return to it as the design-side name in the chip sort.

What has Wall Street done on Arm Holdings plc American Depositary Shares recently?

The most recent analyst action on Arm Holdings plc American Depositary Shares on the Closelook wire is a price target by Piper Sandler on 2026-09-09 (target 320). 2 actions on the analyst wire since 2026-08-13: 2 target changes. Analyst actions are third-party opinions recorded by the wire, not Closelook readings. The “The Street on this name” block on this page lists the moves; the full feeds are the analyst wire and the earnings wire.

Where has Closelook written about Arm Holdings plc American Depositary Shares?

Arm Holdings plc American Depositary Shares appears in 24 Closelook pieces, most recently Morning 10: Yen — the Bank of Japan hikes and the dollar holds 157: the carry trade pays, the lines held, chips +3.4% over $505 (2026-09-18); Midday 10: Fed day — relief before the decision: 10-year 4.96%, Brent under $107.63, chips reclaim $505, Nasdaq-100 above $708.69 (2026-09-16); Morning 10: Rates — Fed day at a 5% 10-year: the hike is priced, the cycle is not; Yardeni cuts the S&P target to 7,900 (2026-09-16). What Closelook said most recently: And one detail from the same session deserves rescuing from the wreckage, because almost nobody mentioned it: ARM — the third listed name whose entire business is chip-design IP — closed the day up two percent. (Report, 2026-07-18). The "Mentioned on Closelook" block on this page lists the long reads, the reference entries and the dailies that name it.

What does this page show?

A live price chart with SMA overlays and drawing tools for ARM, performance metrics, index-membership context and the Closelook structure read — an investment research diary view, not investment advice.

Mentioned on Closelook 24 pieces · newest: Morning 10, “Yen — the Bank of Japan hikes and the dollar holds 157: the carry trade pays, the lines held, chips +3.4% over $505” (2026-09-18)

Mentioned on Closelook

Where ARM appears in the diary — 24 pieces, newest first. Every link is our own writing.

Go deeper

Long reads

  • Where to Invest in the AI Chip Constraint ChainDossier · $29 · 3 Mar 2026P/E HBM6 Next Gen ARM Holdings ARM · ~$185 Watch Not a constraint — but the IP architecture behind 99% of edge AI chips ARM licenses the processor architecture used in virtually every smartphone, IoT device, and increasingly AI edge chips.
  • Agentic Infrastructure Software: The Orchestration LayerDossier · $39 · 24 Feb 2026Cloudflare (NET) · Qualcomm (QCOM) · Arm Holdings (ARM) · Fastly · Akamai · Vercel · Lenovo Foundation Model Providers Layer 0 — The Upstream Dependency The upstream dependency for the entire stack.
  • Who Owns the AI Chip Buildout?Dossier · $39 · 12 Feb 2026Europe's real power is chokepoint leverage via ASML export controls, plus critical R&D (IMEC) and IP (ARM).
  • The DeepSeek Moment Moves Into Chip Design — Part IReport · 18 Jul 2026And one detail from the same session deserves rescuing from the wreckage, because almost nobody mentioned it: ARM — the third listed name whose entire business is chip-design IP — closed the day up two percent.
  • The Index Was Built for This — Kimi K3, Part IIIReport · 18 Jul 2026ARM — the third name in our EDA & Chip IP sector — closed up two percent.
  • Pattern 03 — NVIDIA Strategic Authority InvestmentReport · 12 May 2026The 16-Event Timeline (2023-07-12 → 2026-05-12) 2024 2025 2026 RXRX 23-07 ARM 23-09 APLD 24-09 NBIS 24-12 MRVL 25-03 CRWV 25-03 INTC 25-09 NOK 25-10 SNPS 25-12 LITE COHR 26-03 IREN 26-05 GLW 26-05 exit RXRX exit APLD exit ARM Tier 1 …
  • Nvidia Ecosystem — Wave 1: The ‘Stacking’ PeakReport · 20 Feb 2026ARM Holdings ARM 0.90 Correlation Tier I Classification 2026/27 Peak Role Architecture Royalty Why The Vera CPU inside every NVIDIA Superchip is ARM-based.

Dailies

Related in the Closelook universe