Basic earnings per share is calculated by dividing net income, adjusted for income allocated to participating securities, by the weighted average number of common shares outstanding during the period. Diluted earnings per share reflect the dilution that would occur if any potentially dilutive instruments were exercised or converted into common shares. DTE Energy’s participating securities are restricted shares under the stock incentive program that contain rights to receive non-forfeitable dividends. Performance shares do not receive cash dividends; as such, these awards are not considered participating securities.


	Three Months Ended June 30,				Six Months Ended June 30,
	2026		2025		2026		2025
	(In millions, except per share amounts)
Basic Earnings per Share
Net Income Attributable to DTE Energy Company	$	282	$	229	$	529	$	674

Less: Allocation of earnings to net restricted stock awards	2		1		2		2
Net income available to common shareholders — basic	$	280	$	228	$	527	$	672



Average number of common shares outstanding — basic	208		207		208		207



Basic Earnings per Common Share	$	1.35	$	1.10	$	2.54	$	3.25

Diluted Earnings per Share
Net Income Attributable to DTE Energy Company	$	282	$	229	$	529	$	674

Less: Allocation of earnings to net restricted stock awards	2		1		2		2
Net income available to common shareholders — diluted	$	280	$	228	$	527	$	672



Average number of common shares outstanding — basic	208		207		208		207


Average number of common shares outstanding — diluted	208		207		208		207



Diluted Earnings per Common Share	$	1.35	$	1.10	$	2.53	$	3.24