—
C+
C+ The full Closelooknet — membership. Open the C+ overview
Rubin Build-Out 100 · Sector S19 · Layer 7 · AI Factory

AI Factory Systems

Server and rack OEMs that integrate GPUs into shipping AI systems. The output end of the build-out — thin-margin, high-volume, deliberately under-weighted.

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
2317.TWFoxconn (Hon Hai)Taiwan244.00+1.88%-2.01%-1.81%+0.62%+17.87%+11.42%TWD
2382.TWQuanta ComputerTaiwan322.00+1.74%-1.08%-3.16%-8.52%+1.10%+12.39%TWD
HPEHewlett Packard EnterpriseUS55.13-5.97%-24.95%-9.68%+23.72%+108.51%+122.92%USD
0992.HKLenovo GroupAsia-other28.06+8.01%-14.56%-16.98%+31.00%+152.79%+139.62%HKD
DELLDell TechnologiesUS473.39+0.00%-19.22%-19.55%+23.96%+141.59%+211.41%USD
← Back to Rubin Build-Out 100 Read the AI Chip Build-Out dossier →

FAQ · from the current data · as of 2026-10-16

AI Factory Systems — data Q&A

What is the AI Factory Systems sub-index of the Rubin Build-Out 100?

5 constituents, listed across US, Asia-other, Taiwan, 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 AI Factory Systems constituents lead and lag over one month?

As of 2026-10-16: leading — Foxconn (Hon Hai) (2317.TW) -1.81%; Quanta Computer (2382.TW) -3.16%; Hewlett Packard Enterprise (HPE) -9.68%. Lagging — Dell Technologies (DELL) -19.55%; Lenovo Group (0992.HK) -16.98%; Hewlett Packard Enterprise (HPE) -9.68%. Returns are close-to-close in each name's trading currency.

Which AI Factory Systems names have done best over one year?

As of 2026-10-16: Dell Technologies (DELL) +211.41%; Lenovo Group (0992.HK) +139.62%; Hewlett Packard Enterprise (HPE) +122.92%. Weakest: Foxconn (Hon Hai) (2317.TW) +11.42%; Quanta Computer (2382.TW) +12.39%; Hewlett Packard Enterprise (HPE) +122.92%.

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.