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
0.073%
12M weight contribution
-0.019 pp
3M weight contribution
+0.014 pp
12M price return
+3.4%

Share of matched S&P 500 members

Monthly observations through Jul 2026

0.00.10.220192020202120222023202420252026

Company price index

A separate dimension from market allocation

12130248320192020202120222023202420252026

Historical observations

Most recent 24 observations at or before the selected month

MonthMarket capUniverse weight12M weight change12M returnAbove 6M weight average
Jul 2026$41.6bn0.073%-0.019 pp+3.4%Yes
Jun 2026$40.8bn0.071%-0.025 pp-1.5%Yes
May 2026$46.0bn0.080%-0.019 pp+13.5%Yes
Apr 2026$43.1bn0.058%-0.043 pp+10.0%No
Mar 2026$39.6bn0.058%-0.047 pp-3.4%No
Feb 2026$42.0bn0.058%-0.045 pp-1.9%No
Jan 2026$45.8bn0.088%-0.016 pp+3.4%Yes
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

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.