Observatory · observe first

NiSource

NI · United States · Multi-Utilities · matched S&P 500 member. Follow its market-weight contribution.

Historical time machine
Historical observation
20182026
Universe weight
0.031%
12M weight contribution
-0.012 pp
3M weight contribution
-0.010 pp
12M price return
+19.1%

Share of matched S&P 500 members

Monthly observations through Feb 2026

0.00.00.1201820192020202120222023202420252026

Company price index

A separate dimension from market allocation

100173245201820192020202120222023202420252026

Historical observations

Most recent 24 observations at or before the selected month

MonthMarket capUniverse weight12M weight change12M returnAbove 6M weight average
Feb 2026$22.6bn0.031%-0.012 pp+19.1%No
Jan 2026$21.1bn0.040%+0.002 pp+22.1%Yes
Dec 2025$19.9bn0.039%+0.000 pp+16.8%No
Nov 2025$21.1bn0.041%+0.002 pp+19.1%Yes
Oct 2025$20.1bn0.039%+0.001 pp+23.2%No
Sep 2025$20.4bn0.041%+0.005 pp+28.6%No
Aug 2025$19.9bn0.041%+0.005 pp+31.6%No
Jul 2025$20.0bn0.042%+0.017 pp+39.8%No
Jun 2025$19.0bn0.041%+0.017 pp+44.4%No
May 2025$18.6bn0.042%+0.017 pp+40.3%Yes
Apr 2025$18.4bn0.044%+0.008 pp+44.7%Yes
Mar 2025$18.8bn0.045%+0.010 pp+49.8%Yes
Feb 2025$19.2bn0.043%+0.009 pp+61.9%Yes
Jan 2025$17.4bn0.039%+0.007 pp+48.8%Yes
Dec 2024$17.2bn0.039%+0.006 pp+43.5%Yes
Nov 2024$17.8bn0.039%+0.006 pp+54.0%Yes
Oct 2024$16.4bn0.039%+0.003 pp+44.8%Yes
Sep 2024$15.5bn0.036%+0.002 pp+45.8%Yes
Aug 2024$14.8bn0.036%+0.001 pp+28.3%Yes
Jul 2024$14.0bn0.025%+0.000 pp+16.6%No
Jun 2024$12.9bn0.024%-0.002 pp+9.5%No
May 2024$13.0bn0.025%-0.003 pp+12.3%No
Apr 2024$12.5bn0.036%-0.004 pp+1.7%Yes
Mar 2024$12.4bn0.034%-0.005 pp+2.8%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.