Observatory · observe first

Equifax

EFX · United States · Research & Consulting Services · matched S&P 500 member. Follow its market-weight contribution.

Historical time machine
Historical observation
20182026
Universe weight
0.037%
12M weight contribution
-0.026 pp
3M weight contribution
+0.003 pp
12M price return
-22.2%

Share of matched S&P 500 members

Monthly observations through Aug 2026

0.00.10.1201820192020202120222023202420252026

Company price index

A separate dimension from market allocation

82168255201820192020202120222023202420252026

Historical observations

Most recent 24 observations at or before the selected month

MonthMarket capUniverse weight12M weight change12M returnAbove 6M weight average
Aug 2026$22.2bn0.037%-0.026 pp-22.2%Yes
Jul 2026$20.3bn0.035%-0.027 pp-27.4%Yes
Jun 2026$18.9bn0.033%-0.037 pp-38.2%No
May 2026$19.7bn0.034%-0.040 pp-36.6%No
Apr 2026$20.7bn0.028%-0.049 pp-32.5%No
Mar 2026$21.7bn0.032%-0.040 pp-25.4%No
Feb 2026$25.1bn0.034%-0.034 pp-14.2%No
Jan 2026$24.7bn0.047%-0.029 pp-26.1%No
Dec 2025$26.6bn0.052%-0.020 pp-14.2%No
Nov 2025$26.0bn0.051%-0.020 pp-18.2%No
Oct 2025$25.8bn0.051%-0.027 pp-19.8%No
Sep 2025$31.8bn0.064%-0.021 pp-12.1%No
Aug 2025$30.5bn0.063%-0.029 pp-19.3%No
Jul 2025$29.7bn0.063%+0.001 pp-13.5%No
Jun 2025$32.2bn0.069%+0.013 pp+7.7%No
May 2025$32.8bn0.074%+0.020 pp+14.9%Yes
Apr 2025$32.3bn0.078%-0.001 pp+18.9%Yes
Mar 2025$30.2bn0.072%-0.020 pp-8.4%No
Feb 2025$30.4bn0.068%-0.029 pp-9.8%No
Jan 2025$34.1bn0.076%-0.014 pp+13.1%No
Dec 2024$31.6bn0.072%-0.019 pp+3.7%No
Nov 2024$32.4bn0.072%-0.012 pp+20.9%No
Oct 2024$32.8bn0.077%+0.006 pp+57.3%Yes
Sep 2024$36.4bn0.085%+0.010 pp+61.4%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.