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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
TXNTexas InstrumentsUS311.49-0.32%+0.54%+4.80%+11.89%+7.62%+94.18%USD
MPWRMonolithic Power SystemsUS1261.08-5.06%+4.12%-14.43%-7.21%-23.68%+26.08%USD
ONonsemiUS71.24-1.87%-5.80%-17.46%-9.05%-32.65%+41.18%USD
ALGMAllegro MicroSystemsUS31.25-7.16%-11.65%-19.38%-26.39%-39.17%+7.98%USD
6723.TRenesas ElectronicsJapan2818.00-1.47%-2.31%-21.17%-11.83%-9.80%+46.96%JPY
IFX.DEInfineonEurope50.24-4.12%-5.99%-22.33%-19.07%-13.59%+47.81%EUR
VICRVicorUS159.07-11.14%-26.58%-46.85%-27.27%-43.26%+70.41%USD
STMSTMicroelectronicsEurope45.60——————USD

FAQ · from the current data · as of 2026-11-04

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 2026-11-04: leading — Texas Instruments (TXN) +4.80%; Monolithic Power Systems (MPWR) -14.43%; onsemi (ON) -17.46%. Lagging — Vicor (VICR) -46.85%; Infineon (IFX.DE) -22.33%; Renesas Electronics (6723.T) -21.17%. Returns are close-to-close in each name's trading currency.

Which Power Semiconductors names have done best over one year?

As of 2026-11-04: Texas Instruments (TXN) +94.18%; Vicor (VICR) +70.41%; Infineon (IFX.DE) +47.81%. Weakest: Allegro MicroSystems (ALGM) +7.98%; Monolithic Power Systems (MPWR) +26.08%; onsemi (ON) +41.18%.

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.