Observatory · observe first

State Street Corporation

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

Historical time machine
Historical observation
20182026
Universe weight
0.049%
12M weight contribution
-0.015 pp
3M weight contribution
-0.016 pp
12M price return
+33.5%

Share of matched S&P 500 members

Monthly observations through Feb 2026

0.00.10.2201820192020202120222023202420252026

Company price index

A separate dimension from market allocation

52100148201820192020202120222023202420252026

Historical observations

Most recent 24 observations at or before the selected month

MonthMarket capUniverse weight12M weight change12M returnAbove 6M weight average
Feb 2026$35.9bn0.049%-0.015 pp+33.5%No
Jan 2026$36.6bn0.070%+0.004 pp+32.6%Yes
Dec 2025$36.0bn0.071%+0.005 pp+35.5%Yes
Nov 2025$33.2bn0.065%+0.002 pp+24.6%No
Oct 2025$32.3bn0.063%-0.001 pp+28.5%No
Sep 2025$32.9bn0.066%+0.004 pp+35.4%Yes
Aug 2025$32.6bn0.068%+0.005 pp+36.3%Yes
Jul 2025$31.7bn0.067%+0.021 pp+35.8%Yes
Jun 2025$30.3bn0.065%+0.024 pp+48.7%Yes
May 2025$27.5bn0.062%+0.019 pp+31.8%No
Apr 2025$25.4bn0.061%-0.002 pp+25.8%No
Mar 2025$25.8bn0.061%-0.003 pp+18.8%No
Feb 2025$28.6bn0.064%+0.000 pp+39.3%No
Jan 2025$29.8bn0.066%-0.002 pp+42.4%Yes
Dec 2024$28.8bn0.065%-0.006 pp+30.2%Yes
Nov 2024$28.9bn0.064%-0.006 pp+40.2%Yes
Oct 2024$27.2bn0.064%-0.004 pp+48.8%Yes
Sep 2024$26.4bn0.062%-0.010 pp+35.8%Yes
Aug 2024$26.0bn0.063%-0.007 pp+31.5%Yes
Jul 2024$25.6bn0.046%-0.004 pp+21.8%No
Jun 2024$22.3bn0.042%-0.015 pp+4.0%No
May 2024$22.8bn0.044%-0.013 pp+15.3%No
Apr 2024$21.9bn0.063%-0.018 pp+4.1%No
Mar 2024$23.3bn0.065%-0.024 pp+6.0%No

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.