WhichIndex

Which indexes is Lam Research in?

Lam Research is in 3 of the 57 indexes we track. Its largest weight is 1.27% in the Nasdaq-100, where it ranks #18 of 100.

Ticker
LRCX (Nasdaq)
Country
United States
Sector
Information Technology
Size
Mega cap (market cap over $200 billion; exact figure in the ranking)
Data as of
24 Oct 2026

Member of 3 indexes

Lam Research's index memberships
IndexWeight %RankIndex size
Nasdaq-1001.2718100
Nasdaq Composite0.58 (est.)213377
S&P 5000.4435501

Source: each index's own source, listed on its page. How we source this. Weights are estimates where marked. This page is refreshed when a membership changes or a weight moves by more than 10%; each index page has the daily figures.

Lam Research across every index we track

Lit tiles are the indexes Lam Research belongs to; the shade is its weight there.

Fewermore

Neighbours by weight

The members ranked just above and just below Lam Research in each index
IndexRanked aboveRanked below
Nasdaq-100Applied Materials (1.31%)Palo Alto Networks (1.27%)
Nasdaq CompositeApplied Materials (0.60%)Netflix (0.55%)
S&P 500Applied Materials (0.45%)Palo Alto Networks (0.44%)

Not in

Among the indexes we track for United States.