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BlackRock

BLK · United States · Asset Management & Custody Banks · matched S&P 500 member. Follow its market-weight contribution.

Historical time machine
Historical observation
20182026
Universe weight
0.370%
12M weight contribution
+0.370 pp
3M weight contribution
+0.370 pp
12M price return
+42.2%

Share of matched S&P 500 members

Monthly observations through Jan 2025

0.40.40.42025

Company price index

A separate dimension from market allocation

2172232292025

Historical observations

Most recent 24 observations at or before the selected month

MonthMarket capUniverse weight12M weight change12M returnAbove 6M weight average
Jan 2025$166.6bn0.370%+0.370 pp+42.2%Yes
Dec 2024$158.8bn0.360%+0.360 pp+29.3%Yes
Nov 2024$158.4bn0.350%+0.350 pp+39.6%Yes

Its weight is estimated market cap divided by the total estimated market cap of matched S&P 500 members for the month. This is not an official float-adjusted S&P index weight.