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Resonac (4004.T) — chart, structure and Closelooknet read

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Signals for this name

Every Closelooknet reading that exists for 4004.T, from the same nightly bakes the boards use. Research diary readings, not advice.

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

Versus its index

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

Rubin Build-Out 100 · as of 2026-09-25

DayWeekMonth3 months
4004.T+0.7%+9.1%−5.2%−18.5%
Advanced Materials+0.6%+1.5%+1.5%—
Rubin Build-Out 100+1.7%+5.0%+4.1%—

Against the index: 4.1 pts ahead on the week, 9.3 pts behind on the month; against its Advanced Materials sleeve 6.7 pts behind on the month.

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

Mentioned on Closelooknet 3 pieces · newest: Morning 10, “Asian Chips — Korea’s chip exports more than tripled and the Kospi touched 7,000, with Tokyo shut” (2026-09-21)

Mentioned on Closelooknet

Where 4004.T appears in the diary — 3 pieces, newest first. Every link is our own writing.

Dailies

Weather around the name 3 macro readings: Money Temperature, Factor regime, Sovereign pressure

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 62/100 · S&P 500 fund at 67, bullish alignedEight instruments scored on position, momentum, volume, volatility and fragility — the regime every name trades inside. Temperature lab → 2026-09-25
  • Factor regime Momentum leading — risk appetite buildingMomentum against low volatility (SPMO / SPLV): above its 50-day trend, 99th percentile of the window, +8.4% over 20 sessions. Factor regime → 2026-09-25
  • Sovereign pressure Index 0.61 · up 0.29 over 21 sessionsG7 long-end yields, 10s30s and the slope — the funding weather for every balance sheet on this site. Sovereign pressure → 2026-09-25
Who it is priced against Rubin Build-Out 100 · Advanced Materials · 6 names with week and year-to-date

Peer group

Rubin Build-Out 100 · Advanced Materials

Specialty chemicals, photoresists, and high-purity materials. Quietly indispensable; never the headline.

Compared against 4004.T on the nightly bakes; the Peers tab ranks the cohort on the Closelooknet scores where it exists.

Company snapshot — Resonac

4004.T in five paragraphs: what it makes and sells, where it sits in the Closelooknet stack, who it is priced against, why we track it, what we watch. Research diary, not advice.

What it does
Resonac is a Japanese chemicals company formed from the merger of Showa Denko and Hitachi Chemical, making specialty chemicals and high-purity materials for electronics. Among its products are photoresists and other chemicals used in semiconductor manufacturing. It is based in Tokyo.
Where it sits in the stack
In Rubin, our index of the AI build-out supply chain, Resonac sits in Layer 5, Connectivity & Materials, within the Advanced Materials sleeve — specialty chemicals, photoresists and high-purity materials that foundries consume before a wafer can be processed. It acts as a supply constraint on the fabrication step: without these inputs chip production halts, even though the sleeve rarely draws attention.
Who it is priced against
Its Closelooknet peer group is the Advanced Materials sleeve of our Rubin index — Soitec, Entegris, Murata, Shin-Etsu Chemical, Siltronic and Sumco — chemical and materials suppliers to chipmakers, grouped for their shared position feeding the fabrication step. The market also names JSR as a comparable photoresist maker.
Why Closelooknet tracks it
It is a constituent of the Rubin Build-Out 100. Only one module of its Closelooknet score has been built so far, so the overall read is still in progress. It has appeared once in the Morning 10, in a note on Asian markets trading a broader AI demand pullback.
What the diary watches
The diary watches whether demand for advanced materials keeps pace with new fab and packaging capacity, given how far its price has recently pulled back from its 52-week high.

Resonac (4004.T) trades on the TSE exchange in Japan, and sits in Layer 5 of the build-out stack. Constituent of Rubin Build-Out 100.

Written from the company’s public profile and Closelooknet’s own readings, 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: index compare · sector dispersion · scanner.

FAQ · from the current data · as of 2026-09-26

Quick answers

What is Resonac (4004.T)?

Resonac trades as 4004.T on the TSE exchange (Japan) in the Closelooknet research universe, as of the registry build of 2026-09-26.

Is 4004.T in a Closelooknet index?

Yes — Resonac is a constituent of Rubin Build-Out 100, as of 2026-09-26.

Where does 4004.T trade against its moving averages?

Resizing — 27% off its high: 27% below its 52-week high — a deeper resizing of the trend, not a shallow dip. As of 2026-09-25 — a technical state from the nightly Closelooknet bake, not advice. The Technical tab carries the full row.

How is 4004.T doing against its Closelooknet index?

Over the past month Resonac is −5.2% against +4.1% for the Rubin Build-Out 100 — 9.3 points behind its index, as of 2026-09-25. Its Advanced Materials sleeve is +1.5% 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.

Where has Closelooknet written about Resonac?

Resonac appears in 3 Closelooknet pieces, most recently Morning 10: Asian Chips — Korea’s chip exports more than tripled and the Kospi touched 7,000, with Tokyo shut (2026-09-21); 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); Morning 10: AI trade — the labs ask for a slowdown: Kospi −3.3%, SoftBank −11%, Nasdaq futures −1.2%, oil back above $106 (2026-09-14). What Closelooknet said most recently: Rubin closed +1.5% at 1,904.95 on its Foundry and Architects layers while its Japanese constituents fell 0.9% — Sumco −3.7%, Resonac −4.0% — which makes Tokyo Electron’s +4.2% this morning the first equipment name on either continent to… (Morning 10, 2026-09-18). The "Mentioned on Closelooknet" block on this page lists the long reads, the reference entries and the dailies that name it.

What does Resonac do?

Resonac is a Japanese chemicals company formed from the merger of Showa Denko and Hitachi Chemical, making specialty chemicals and high-purity materials for electronics. Among its products are photoresists and other chemicals used in semiconductor manufacturing. It is based in Tokyo. Its Closelooknet peer group is the Advanced Materials sleeve of our Rubin index — Soitec, Entegris, Murata, Shin-Etsu Chemical, Siltronic and Sumco — chemical and materials suppliers to chipmakers, grouped for their shared position feeding the fabrication step. The market also names JSR as a comparable photoresist maker.

Where does Resonac sit in the AI build-out?

In Rubin, our index of the AI build-out supply chain, Resonac sits in Layer 5, Connectivity & Materials, within the Advanced Materials sleeve — specialty chemicals, photoresists and high-purity materials that foundries consume before a wafer can be processed. It acts as a supply constraint on the fabrication step: without these inputs chip production halts, even though the sleeve rarely draws attention. It is a constituent of the Rubin Build-Out 100. Only one module of its Closelooknet score has been built so far, so the overall read is still in progress. It has appeared once in the Morning 10, in a note on Asian markets trading a broader AI demand pullback.

What does this page show?

A live price chart with SMA overlays and drawing tools for 4004.T, performance metrics, index-membership context and the Closelooknet structure read — an investment research diary view, not investment advice.

Related in the Closelooknet universe

same Closelooknet index seat first. Scored names rank on their Closelooknet score; names without one rank on trend state — above or below their 50- and 200-day averages — never on a score they do not carry.