Market cap
$20.434 B
$42.61 -1.77%
Close of 7 Aug 2026
Revenue
$6.52B
#560 by revenue
Earnings
$929.5M
#414 by earnings
Shares outstanding
479,560,100
Latest filing cover page
P/E ratio
22.0
Cap ÷ net income
Power Generation — ranked by market cap
All 19 →Where these numbers come from
Share counts and financials for Nisource are taken from its own SEC filings via EDGAR — public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Last updated 9 Aug 2026. Read the methodology.