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) 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 ElectronicsJapan3417.00+1.09%-0.47%+7.79%-24.07%+20.36%+87.75%JPY
IFX.DEInfineonEurope57.08-0.16%+1.98%-4.02%-35.14%+28.52%+64.53%EUR
MPWRMonolithic Power SystemsUS1256.26-4.18%-4.56%-4.55%-19.79%+10.15%+45.80%USD
STMSTMicroelectronicsEurope49.38-3.82%-2.33%-6.94%-28.75%+47.34%+83.53%USD
TXNTexas InstrumentsUS258.64-2.96%-2.16%-7.22%-15.39%+21.94%+27.83%USD
ONonsemiUS72.61-2.93%-2.16%-13.29%-39.80%+9.22%+41.68%USD
ALGMAllegro MicroSystemsUS35.77-4.84%-3.74%-13.70%-25.28%-1.92%+13.70%USD

FAQ · from the current data · as of 2026-08-28

Power Semiconductors — data Q&A

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

7 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 2026-08-28: leading — Renesas Electronics (6723.T) +7.79%; Infineon (IFX.DE) -4.02%; Monolithic Power Systems (MPWR) -4.55%. Lagging — Allegro MicroSystems (ALGM) -13.70%; onsemi (ON) -13.29%; Texas Instruments (TXN) -7.22%. Returns are close-to-close in each name's trading currency.

Which Power Semiconductors names have done best over one year?

As of 2026-08-28: Renesas Electronics (6723.T) +87.75%; STMicroelectronics (STM) +83.53%; Infineon (IFX.DE) +64.53%. Weakest: Allegro MicroSystems (ALGM) +13.70%; Texas Instruments (TXN) +27.83%; onsemi (ON) +41.68%.

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.