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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)Taiwan235.00-2.08%-5.24%-7.48%-6.00%-6.75%-3.09%TWD
2382.TWQuanta ComputerTaiwan300.00-0.83%-5.66%-9.37%-0.17%-13.42%+3.63%TWD
HPEHewlett Packard EnterpriseUS44.16-11.84%-24.99%-38.74%-17.02%+48.69%+89.78%USD
0992.HKLenovo GroupAsia-other19.41-6.86%-12.33%-45.17%-25.17%+59.75%+65.90%HKD
DELLDell TechnologiesUS316.91-14.89%-33.35%-45.26%-30.16%+37.63%+106.47%USD

FAQ · from the current data · as of 2026-11-05

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 2026-11-05: leading — Foxconn (Hon Hai) (2317.TW) -7.48%; Quanta Computer (2382.TW) -9.37%; Hewlett Packard Enterprise (HPE) -38.74%. Lagging — Dell Technologies (DELL) -45.26%; Lenovo Group (0992.HK) -45.17%; Hewlett Packard Enterprise (HPE) -38.74%. Returns are close-to-close in each name's trading currency.

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

As of 2026-11-05: Dell Technologies (DELL) +106.47%; Hewlett Packard Enterprise (HPE) +89.78%; Lenovo Group (0992.HK) +65.90%. Weakest: Foxconn (Hon Hai) (2317.TW) -3.09%; Quanta Computer (2382.TW) +3.63%; Lenovo Group (0992.HK) +65.90%.

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.