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Rubin Build-Out 100 · Sector S11 · Layer 4 · Infrastructure

Power Semiconductors

Power-management IC, GaN, SiC. Every megawatt the AI build-out adds requires the right power semis underneath.

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
6723.TRenesas ElectronicsJapan3600.00+31590.14%+29432.40%+33990.91%+26409.57%+44126.04%+61901.62%JPY
VICRVicorUS259.40-2.51%-15.12%+31.07%-1.93%+39.30%+392.97%USD
MPWRMonolithic Power SystemsUS1319.23-4.84%-10.86%+6.87%-4.15%-3.86%+35.22%USD
TXNTexas InstrumentsUS281.74-0.70%-4.46%+4.85%-7.79%+30.01%+59.87%USD
ONonsemiUS76.00-1.97%-11.56%-0.18%-18.92%+7.01%+52.09%USD
STMSTMicroelectronicsEurope50.48-3.03%-12.48%-2.00%-28.02%+25.20%+76.99%USD
IFX.DEInfineonEurope57.22-2.79%-9.85%-2.29%-14.99%+24.38%+76.95%EUR
ALGMAllegro MicroSystemsUS33.79-5.00%-12.14%-6.94%-35.42%-11.17%+21.72%USD

FAQ · from the current data · as of 2026-10-13

Power Semiconductors — data Q&A

What is the Power Semiconductors sub-index of the Rubin Build-Out 100?

8 constituents, listed across Europe, 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 Power Semiconductors constituents lead and lag over one month?

As of 2026-10-13: leading — Renesas Electronics (6723.T) +33990.91%; Vicor (VICR) +31.07%; Monolithic Power Systems (MPWR) +6.87%. Lagging — Allegro MicroSystems (ALGM) -6.94%; Infineon (IFX.DE) -2.29%; STMicroelectronics (STM) -2.00%. Returns are close-to-close in each name's trading currency.

Which Power Semiconductors names have done best over one year?

As of 2026-10-13: Renesas Electronics (6723.T) +61901.62%; Vicor (VICR) +392.97%; STMicroelectronics (STM) +76.99%. Weakest: Allegro MicroSystems (ALGM) +21.72%; Monolithic Power Systems (MPWR) +35.22%; onsemi (ON) +52.09%.

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.