Observatory · observe first

MSCI

MSCI · United States · Financial Exchanges & Data · matched S&P 500 member. Follow its market-weight contribution.

Historical time machine
Historical observation
20182026
Universe weight
0.084%
12M weight contribution
-0.022 pp
3M weight contribution
-0.003 pp
12M price return
-3.2%

Share of matched S&P 500 members

Monthly observations through Dec 2025

0.00.10.22019202020212022202320242025

Company price index

A separate dimension from market allocation

1213014822019202020212022202320242025

Historical observations

Most recent 24 observations at or before the selected month

MonthMarket capUniverse weight12M weight change12M returnAbove 6M weight average
Dec 2025$43.1bn0.084%-0.022 pp-3.2%No
Nov 2025$42.4bn0.083%-0.022 pp-6.4%No
Oct 2025$44.2bn0.087%-0.019 pp+4.3%No
Sep 2025$43.9bn0.088%-0.019 pp-1.5%No
Aug 2025$43.9bn0.091%-0.019 pp-1.0%No
Jul 2025$43.4bn0.092%+0.015 pp+5.0%No
Jun 2025$44.6bn0.096%+0.025 pp+21.1%No
May 2025$43.6bn0.099%+0.024 pp+15.3%No
Apr 2025$42.2bn0.101%-0.006 pp+18.4%No
Mar 2025$43.9bn0.104%-0.019 pp+2.1%No
Feb 2025$45.9bn0.103%-0.025 pp+6.5%No
Jan 2025$46.8bn0.104%-0.037 pp+0.8%No
Dec 2024$47.0bn0.107%-0.027 pp+7.3%Yes
Nov 2024$47.8bn0.105%-0.023 pp+18.4%Yes
Oct 2024$44.8bn0.105%-0.022 pp+22.6%Yes
Sep 2024$45.8bn0.107%-0.029 pp+14.9%Yes
Aug 2024$45.7bn0.110%-0.027 pp+8.1%Yes
Jul 2024$42.5bn0.076%-0.018 pp-0.2%No
Jun 2024$38.2bn0.072%-0.015 pp+3.8%No
May 2024$39.2bn0.075%-0.018 pp+6.4%No
Apr 2024$36.9bn0.107%-0.024 pp-2.4%No
Mar 2024$44.3bn0.123%-0.030 pp+1.2%No
Feb 2024$44.4bn0.127%-0.020 pp+8.6%No
Jan 2024$47.3bn0.141%-0.005 pp+13.8%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.