Market cap
$19.432 B
$40.52 -0.15%
Close of 21 Sept 2026
Revenue
$6.52B
#561 by revenue
Earnings
$929.5M
#413 by earnings
Shares outstanding
479,560,100
Latest filing cover page
P/E ratio
20.9
Cap ÷ net income
Power Generation, ranked by market cap
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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 22 Sept 2026. Read the methodology.