NYSE:NI | Historical Stock Price | NISOURCE INC.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1973-02-21 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$1.59$4.57$13.14$37.83$108.88$313.391973-02-212026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 1980

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1980-12-31$2.26$2.26211,235——
1980-12-30$2.23$2.23174,587——
1980-12-29$2.23$2.23274,860——
1980-12-26$2.33$2.3365,661——
1980-12-24$2.36$2.361,221,091——
1980-12-23$2.31$2.31246,356——
1980-12-22$2.26$2.26287,585——
1980-12-19$2.19$2.19270,279——
1980-12-18$2.16$2.16535,977——
1980-12-17$2.06$2.06427,051——
1980-12-16$1.96$1.96292,675——
1980-12-15$2.01$2.01295,729——
1980-12-12$2.04$2.04830,179——
1980-12-11$2.01$2.01213,780——
1980-12-10$2.04$2.04216,834——
1980-12-09$2.04$2.04246,865——
1980-12-08$2.06$2.06212,762——
1980-12-05$2.06$2.06158,299——
1980-12-04$2.06$2.06198,001——
1980-12-03$2.09$2.09121,142——
1980-12-02$2.09$2.09183,240——
1980-12-01$2.09$2.09455,046——
1980-11-28$2.09$2.09199,528——
1980-11-26$2.11$2.11580,260——
1980-11-25$2.11$2.11528,851——
1980-11-24$2.14$2.14296,747——
1980-11-21$2.16$2.16219,888——
1980-11-20$2.23$2.23147,101——
1980-11-19$2.26$2.26340,012——
1980-11-18$2.21$2.21180,695——
1980-11-17$2.23$2.23167,461——
1980-11-14$2.19$2.19141,502——
1980-11-13$2.19$2.19147,610——
1980-11-12$2.21$2.21132,849——
1980-11-11$2.19$2.19279,950——
1980-11-10$2.14$2.14207,163——
1980-11-07$2.14$2.14680,024——
1980-11-06$2.19$2.19116,052——
1980-11-05$2.21$2.21112,489——
1980-11-03$2.19$2.19122,160——
1980-10-31$2.23$2.23193,420——
1980-10-30$2.21$2.2182,458——
1980-10-29$2.21$2.21105,363——
1980-10-28$2.23$2.23185,276——
1980-10-27$2.28$2.28526,306——
1980-10-24$2.41$2.41358,845——
1980-10-23$2.41$2.4176,859——
1980-10-22$2.43$2.43137,430——
1980-10-21$2.41$2.41260,099——
1980-10-20$2.43$2.4376,859——
1980-10-17$2.43$2.4396,710——
1980-10-16$2.43$2.43119,106——
1980-10-15$2.41$2.41103,327——
1980-10-14$2.38$2.38494,748——
1980-10-13$2.38$2.3858,535——
1980-10-10$2.38$2.38288,094——
1980-10-09$2.38$2.3897,219——
1980-10-08$2.38$2.3875,841——
1980-10-07$2.36$2.36295,729——
1980-10-06$2.33$2.33230,068——
1980-10-03$2.31$2.31184,767——
1980-10-02$2.31$2.31155,754——
1980-10-01$2.31$2.31746,703——
1980-09-30$2.28$2.2880,422——
1980-09-29$2.26$2.2690,602——
1980-09-26$2.31$2.3186,530——
1980-09-25$2.28$2.28248,392——
1980-09-24$2.31$2.3171,260——
1980-09-23$2.33$2.33153,718——
1980-09-22$2.36$2.3686,530——
1980-09-19$2.36$2.3674,314——
1980-09-18$2.36$2.3693,147——
1980-09-17$2.36$2.36111,980——
1980-09-16$2.36$2.3682,458——
1980-09-15$2.33$2.33377,169——
1980-09-12$2.36$2.3673,805——
1980-09-11$2.36$2.3671,260——
1980-09-10$2.36$2.3690,602——
1980-09-09$2.36$2.36132,849——
1980-09-08$2.36$2.36182,222——
1980-09-05$2.43$2.43137,430——
1980-09-04$2.46$2.46117,579——
1980-09-03$2.43$2.43106,890——
1980-09-02$2.38$2.3870,242——
1980-08-29$2.36$2.36368,516——
1980-08-28$2.33$2.33541,067——
1980-08-27$2.36$2.36109,435——
1980-08-26$2.36$2.3658,026——
1980-08-25$2.36$2.36146,592——
1980-08-22$2.36$2.36123,687——
1980-08-21$2.36$2.3693,147——
1980-08-20$2.36$2.36142,011——
1980-08-19$2.36$2.3689,584——
1980-08-18$2.38$2.38510,527——
1980-08-15$2.43$2.43107,908——
1980-08-14$2.43$2.4392,129——
1980-08-13$2.36$2.36293,693——
1980-08-12$2.38$2.38146,083——
1980-08-11$2.36$2.36104,854——
1980-08-08$2.41$2.41249,410——
1980-08-07$2.43$2.43127,759——
1980-08-06$2.43$2.43115,543——
1980-08-05$2.46$2.46123,178——
1980-08-04$2.48$2.4889,075——
1980-08-01$2.48$2.48190,366——
1980-07-31$2.50$2.5093,656——
1980-07-30$2.55$2.5552,427——
1980-07-29$2.55$2.55162,880——
1980-07-28$2.58$2.58332,886——
1980-07-25$2.60$2.60548,702——
1980-07-24$2.75$2.75271,297——
1980-07-23$2.73$2.731,087,733——
1980-07-22$2.70$2.70164,916——
1980-07-21$2.68$2.68292,675——
1980-07-18$2.70$2.70185,276——
1980-07-17$2.70$2.7081,949——
1980-07-16$2.70$2.70858,683——
1980-07-15$2.70$2.70196,474——
1980-07-14$2.70$2.70139,975——
1980-07-11$2.73$2.7368,206——
1980-07-10$2.70$2.70183,749——
1980-07-09$2.70$2.70710,564——
1980-07-08$2.68$2.6884,494——
1980-07-07$2.68$2.6869,224——
1980-07-03$2.70$2.7055,990——
1980-07-02$2.68$2.6874,314——
1980-07-01$2.68$2.6871,260——
1980-06-30$2.68$2.68327,287——
1980-06-27$2.70$2.70198,510——
1980-06-26$2.70$2.701,648,142——
1980-06-25$2.65$2.65296,238——
1980-06-24$2.65$2.6586,021——
1980-06-23$2.70$2.70111,471——
1980-06-20$2.60$2.60105,363——
1980-06-19$2.60$2.601,123,363——
1980-06-18$2.65$2.65184,767——
1980-06-17$2.70$2.70124,705——
1980-06-16$2.73$2.73102,309——
1980-06-13$2.70$2.70187,312——
1980-06-12$2.68$2.68258,572——
1980-06-11$2.63$2.63103,327——
1980-06-10$2.63$2.63144,047——
1980-06-09$2.63$2.63305,400——
1980-06-06$2.63$2.63279,950——
1980-06-05$2.60$2.60370,552——
1980-06-04$2.55$2.5548,864——
1980-06-03$2.53$2.5356,499——
1980-06-02$2.53$2.5385,003——
1980-05-30$2.53$2.53170,006——
1980-05-29$2.55$2.55107,908——
1980-05-28$2.55$2.5570,751——
1980-05-27$2.55$2.55256,027——
1980-05-23$2.55$2.5580,931——
1980-05-22$2.48$2.4860,571——
1980-05-21$2.50$2.5047,846——
1980-05-20$2.48$2.4888,057——
1980-05-19$2.48$2.48139,975——
1980-05-16$2.55$2.5589,584——
1980-05-15$2.63$2.63249,919——
1980-05-14$2.68$2.6870,242——
1980-05-13$2.63$2.6343,265——
1980-05-12$2.58$2.5854,972——
1980-05-09$2.58$2.5852,427——
1980-05-08$2.58$2.58134,885——
1980-05-07$2.68$2.6882,967——
1980-05-06$2.65$2.6550,391——
1980-05-05$2.63$2.6374,823——
1980-05-02$2.63$2.6342,756——
1980-05-01$2.58$2.5859,553——
1980-04-30$2.58$2.5857,517——
1980-04-29$2.60$2.6045,810——
1980-04-28$2.58$2.5836,139——
1980-04-25$2.58$2.58310,490——
1980-04-24$2.63$2.63334,413——
1980-04-23$2.78$2.7880,422——
1980-04-22$2.75$2.7561,589——
1980-04-21$2.75$2.7579,913——
1980-04-18$2.78$2.78102,818——
1980-04-17$2.75$2.7558,535——
1980-04-16$2.73$2.7387,039——
1980-04-15$2.73$2.73122,160——
1980-04-14$2.73$2.73116,052——
1980-04-11$2.75$2.75228,032——
1980-04-10$2.68$2.68105,872——
1980-04-09$2.46$2.4656,499——
1980-04-08$2.48$2.48208,690——
1980-04-07$2.48$2.4864,134——
1980-04-03$2.43$2.4399,255——
1980-04-02$2.41$2.41366,480——
1980-04-01$2.36$2.3677,368——
1980-03-31$2.28$2.2853,445——
1980-03-28$2.28$2.28135,903——
1980-03-27$2.23$2.2351,409——
1980-03-26$2.31$2.3183,476——
1980-03-25$2.26$2.2675,841——
1980-03-24$2.28$2.2857,008——
1980-03-21$2.31$2.3170,751——
1980-03-20$2.36$2.36215,307——
1980-03-19$2.36$2.36123,178——
1980-03-18$2.33$2.33101,800——
1980-03-17$2.31$2.3179,404——
1980-03-14$2.33$2.33145,574——
1980-03-13$2.33$2.3349,882——
1980-03-12$2.33$2.3390,093——
1980-03-11$2.33$2.33222,433——
1980-03-10$2.26$2.2669,224——
1980-03-07$2.23$2.23108,417——
1980-03-06$2.19$2.19235,158——
1980-03-05$2.23$2.2391,111——
1980-03-04$2.26$2.26118,597——
1980-03-03$2.26$2.26146,592——
1980-02-29$2.28$2.28224,469——
1980-02-28$2.26$2.2698,746——
1980-02-27$2.26$2.26347,138——
1980-02-26$2.33$2.33572,116——
1980-02-25$2.31$2.31197,492——
1980-02-22$2.31$2.31115,543——
1980-02-21$2.33$2.3394,165——
1980-02-20$2.33$2.33170,006——
1980-02-19$2.38$2.38148,119——
1980-02-15$2.48$2.48104,854——
1980-02-14$2.50$2.5080,931——
1980-02-13$2.46$2.461,000,694——
1980-02-12$2.53$2.53106,381——
1980-02-11$2.50$2.50308,454——
1980-02-08$2.53$2.53356,300——
1980-02-07$2.53$2.5380,422——
1980-02-06$2.53$2.5390,093——
1980-02-05$2.55$2.55173,060——
1980-02-04$2.58$2.5875,841——
1980-02-01$2.55$2.55324,233——
1980-01-31$2.50$2.50135,903——
1980-01-30$2.55$2.5560,571——
1980-01-29$2.55$2.55253,482——
1980-01-28$2.58$2.5886,530——
1980-01-25$2.55$2.55305,400——
1980-01-24$2.65$2.65127,250——
1980-01-23$2.65$2.65275,878——
1980-01-22$2.65$2.65104,854——
1980-01-21$2.68$2.68205,636——
1980-01-18$2.73$2.7382,967——
1980-01-17$2.75$2.7567,697——
1980-01-16$2.82$2.82425,524——
1980-01-15$2.82$2.8280,931——
1980-01-14$2.85$2.85347,138——
1980-01-11$2.80$2.8094,165——
1980-01-10$2.80$2.8066,170——
1980-01-09$2.78$2.7850,391——
1980-01-08$2.75$2.7589,075——
1980-01-07$2.75$2.7564,134——
1980-01-04$2.73$2.7355,990——
1980-01-03$2.73$2.7349,882——
1980-01-02$2.70$2.7074,823——