Earnings (Loss) and Dividends per Share

3 Months Ended

Mar. 31, 2025

Earnings and Dividends Per Share [Abstract]

Earnings (Loss) per Share

The Company has unvested restricted stock units outstanding that are considered participating securities and, therefore, computes basic and diluted earnings (loss) per share under the two-class method. Basic earnings (loss) per share for the periods are based upon the weighted average number of shares of common stock outstanding during each period. Diluted earnings per share include the effects of certain stock options and performance stock units. Diluted loss per share exclude the effects of certain stock options and performance stock units because the effect of including them would have been antidilutive.


	Three Months Ended March 31,
	2025		2024
Net income (loss) attributable to Westlake Corporation	$	(40)	$	174
Less:
Net income attributable to participating securities	—		(1)
Net income (loss) attributable to common stockholders	$	(40)	$	173

The following table reconciles the denominator for the basic and diluted earnings per share computations shown in the consolidated statements of operations:


	Three Months Ended March 31,
	2025		2024
Weighted average common shares—basic	128,308,537		128,359,983
Plus incremental shares from:
Assumed exercise of options and vesting of performance stock units	—		660,387
Weighted average common shares—diluted	128,308,537		129,020,370

Earnings (loss) per common share attributable to Westlake Corporation:
Basic	$	(0.31)	$	1.35
Diluted	$	(0.31)	$	1.34

Excluded from the computation of diluted earnings per share are options to purchase 646,412 shares of common stock, and assumed vesting of 214,412 performance stock units for three months ended March 31, 2025, and options to purchase 260,722 shares of common stock for the three months ended March 31, 2024. These options and performance stock units were outstanding during the periods reported but were excluded because the effect of including them would have been antidilutive.

Dividends per Share

Dividends declared per common share for the three months ended March 31, 2025 and 2024 were as follows:


	Three Months Ended March 31,
	2025		2024
Dividends per common share	$	0.5250	$	0.5000