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Siltronic AG (WAF.XETRA) — chart, structure and Closelook read

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Company snapshot — Siltronic AG

WAF.XETRA 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
Siltronic makes hyperpure silicon wafers, the polished and epitaxial discs that chipmakers build transistors on. It supplies wafers for memory chips such as DRAM and NAND, and specialised types for discrete and radio-frequency devices. Its wafers end up in computers, smartphones, industrial equipment, wind turbines and cars. The company is headquartered in Munich and sells across Europe, the United States and Asia.
Where it sits in the stack
In Rubin, our index of the AI build-out supply chain, Siltronic sits in Layer 5, Connectivity & Materials, within the Advanced Materials sleeve alongside specialty chemicals and photoresist makers. It supplies the raw wafer that every chip starts from, so it is a constraint on foundry output rather than a customer of it — no wafer, no chip, however advanced the design.
Who it is priced against
Closelook's peer group places it with Soitec, Entegris, Murata, Resonac, Shin-Etsu Chemical and Sumco, all makers of the specialty materials the diary calls quietly indispensable. The market also compares it with GlobalWafers, another large wafer supplier outside this group.
Why Closelook tracks it
Siltronic holds a seat in the Rubin Build-Out 100. It does not currently carry a Closelook score, and the diary has not yet quoted it in an edition.
What the diary watches
Whether wafer demand tracks the wider rise in chip output, since Siltronic's volumes move with foundry capacity rather than with any single product cycle.

Siltronic AG (WAF.XETRA) trades on the XETRA exchange in Germany, and sits in Layer 5 of the build-out stack. Constituent of Rubin Build-Out 100.

Written from the company’s public profile and Closelook’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.

Signals for this name

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

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.

  • SOI.PASoitec SA
    day
    +1.6%
    vs 50d
    +22.8%
    off high
    −29.3%
    score
    43

    flow: losing force

  • ENTGEntegris Inc
    day
    +3.4%
    vs 50d
    −2.8%
    off high
    −28.0%
    score
    —

    flow: losing force

  • 6981.TMurata Manufacturing
    day
    −2.6%
    vs 50d
    −3.1%
    off high
    −42.4%
    score
    —

    flow: losing force

  • 4004.TResonac
    day
    −4.0%
    vs 50d
    −11.4%
    off high
    −33.8%
    score
    —

    flow: losing force

  • 4063.TShin-Etsu Chemical
    day
    −1.0%
    vs 50d
    −8.1%
    off high
    −27.3%
    score
    —

    flow: losing force

  • 3436.TSumco
    day
    −3.7%
    vs 50d
    −20.8%
    off high
    −51.7%
    score
    —

    flow: losing force

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

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 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
  • 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 Siltronic AG (WAF.XETRA)?

Siltronic AG trades as WAF.XETRA on the XETRA exchange (Germany) in the Closelook research universe, as of the registry build of 2026-09-18.

Is WAF.XETRA in a Closelook index?

Yes — Siltronic AG is a constituent of Rubin Build-Out 100, as of 2026-09-18.

Where does WAF.XETRA trade against its moving averages?

Mixed moving-average stack: Trades -13.2% vs the 50-day and -0.7% vs the 200-day average, 36% below the 52-week high and +67.8% off the 52-week low. Computed from daily closes. As of 2026-09-17 — a technical state from the nightly Closelook bake, not advice. The Technical tab carries the full row.

What does Siltronic AG do?

Siltronic makes hyperpure silicon wafers, the polished and epitaxial discs that chipmakers build transistors on. It supplies wafers for memory chips such as DRAM and NAND, and specialised types for discrete and radio-frequency devices. Its wafers end up in computers, smartphones, industrial equipment, wind turbines and cars. Closelook's peer group places it with Soitec, Entegris, Murata, Resonac, Shin-Etsu Chemical and Sumco, all makers of the specialty materials the diary calls quietly indispensable. The market also compares it with GlobalWafers, another large wafer supplier outside this group.

Where does Siltronic AG sit in the AI build-out?

In Rubin, our index of the AI build-out supply chain, Siltronic sits in Layer 5, Connectivity & Materials, within the Advanced Materials sleeve alongside specialty chemicals and photoresist makers. It supplies the raw wafer that every chip starts from, so it is a constraint on foundry output rather than a customer of it — no wafer, no chip, however advanced the design. Siltronic holds a seat in the Rubin Build-Out 100. It does not currently carry a Closelook score, and the diary has not yet quoted it in an edition.

What does this page show?

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

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