—
C+
C+ The full Closelook — membership. Open the C+ overview
Rubin Build-Out 100 · Sector S17 · Layer 6 · Manufacturing Support

Fab Subsystems & Process Infra

Vacuum, gas-delivery, and ultra-high-purity fluids. The fab plumbing without which the headline tools are paperweights.

Equal-weight — 1d —
Cap-weighted — 1d —
Momentum (drift) — 1d —
Constituents — in this sector

Composite Index — since inception (Dec 30, 2025)

Three weighting variants of the same constituent basket, rebased to 1,000 at inception. EW = ticker-equal-weight with quarterly drift. CW = cap-weighted (10% cap; below ten names the cap is infeasible, so the sub-index is equal weight by construction) with semi-annual rebalance. MW = drift-only (1/N at inception, market does the tilting between rebalances). Click a legend entry to toggle its line.

Constituents

Every Rubin constituent tagged into this sector. Click a row to open the stock detail page with full chart + Money-Temperature scoring.

Ticker Company Region Last 1d 1w 1m 3m 6m 1y CCY
6856.THoribaJapan23530.00+2.82%+9.19%+1.01%-18.11%+20.51%+100.60%JPY
AEISAdvanced EnergyUS278.03-0.50%+9.28%+0.94%-25.89%-18.91%+57.57%USD
MKSIMKS InstrumentsUS257.98-1.80%+7.39%-4.62%-37.13%+5.87%+101.23%USD
ACLSAxcelis TechnologiesUS116.14-1.93%+11.03%-7.38%-35.73%+15.16%+17.94%USD
← Back to Rubin Build-Out 100 Read the AI Chip Build-Out dossier →

FAQ · from the current data · as of 2026-09-24

Fab Subsystems & Process Infra — data Q&A

What is the Fab Subsystems & Process Infra sub-index of the Rubin Build-Out 100?

4 constituents, listed across US, Japan, computed equal-weight, cap-weight and momentum-weight from the same basket and rebased to 1,000 at the index base date. Part of the Rubin Build-Out 100 — /indices/rubin/.

Which Fab Subsystems & Process Infra constituents lead and lag over one month?

As of 2026-09-24: leading — Horiba (6856.T) +1.01%; Advanced Energy (AEIS) +0.94%; MKS Instruments (MKSI) -4.62%. Lagging — Axcelis Technologies (ACLS) -7.38%; MKS Instruments (MKSI) -4.62%; Advanced Energy (AEIS) +0.94%. Returns are close-to-close in each name's trading currency.

Which Fab Subsystems & Process Infra names have done best over one year?

As of 2026-09-24: MKS Instruments (MKSI) +101.23%; Horiba (6856.T) +100.60%; Advanced Energy (AEIS) +57.57%. Weakest: Axcelis Technologies (ACLS) +17.94%; Advanced Energy (AEIS) +57.57%; Horiba (6856.T) +100.60%.

How often does this sub-index update, and is it advice?

The worker recomputes the sub-index and every constituent's returns after each US close (prices converted to USD for the index level; per-name returns stay in local currency). This page is a data surface in an investment research diary — it describes constituents and returns, it recommends nothing.