Photomasks & Mask Infrastructure

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
7911.T	Toppan Holdings	Japan	5019.00	+0.36%	-2.03%	+17.24%	+10.02%	+3.55%	+32.53%	JPY
PLAB	Photronics	US	27.73	-8.36%	-9.11%	-6.25%	-14.28%	-25.92%	+15.69%	USD

Photomasks & Mask Infrastructure — data Q&A

What is the Photomasks & Mask Infrastructure sub-index of the Rubin Build-Out 100?

2 constituents, listed across 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 Photomasks & Mask Infrastructure constituents lead and lag over one month?

As of 2026-08-28: leading — Toppan Holdings (7911.T) +17.24%; Photronics (PLAB) -6.25%. Lagging — Photronics (PLAB) -6.25%; Toppan Holdings (7911.T) +17.24%. Returns are close-to-close in each name's trading currency.

Which Photomasks & Mask Infrastructure names have done best over one year?

As of 2026-08-28: Toppan Holdings (7911.T) +32.53%; Photronics (PLAB) +15.69%. Weakest: Photronics (PLAB) +15.69%; Toppan Holdings (7911.T) +32.53%.

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.