WhichIndex

Which indexes is Interactive Brokers in?

Interactive Brokers is in 2 of the 57 indexes we track. Its largest weight is 0.29% (estimated from market cap) in the Nasdaq Composite, where it ranks #39 of 3373.

Ticker
IBKR (Nasdaq)
Country
United States
Sector
Financials
Size
Large cap (market cap $10–200 billion; exact figure in the ranking)
Data as of
15 Oct 2026

Member of 2 indexes

Interactive Brokers's index memberships
IndexWeight %RankIndex size
Nasdaq Composite0.29 (est.)393373
S&P 5000.06264502

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.

Interactive Brokers across every index we track

Lit tiles are the indexes Interactive Brokers belongs to; the shade is its weight there.

Fewermore

Neighbours by weight

The members ranked just above and just below Interactive Brokers in each index
IndexRanked aboveRanked below
Nasdaq CompositeSeagate Technology (0.31%)Intuitive Surgical (0.29%)
S&P 500Illumina, Inc. (0.06%)MSCI (0.06%)

Not in

Among the indexes we track for United States.