19. EARNINGS PER SHARE

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Basic income per share excludes dilution and is computed by dividing net income attributable to Huntsman Corporation by the weighted average number of shares outstanding during the period. Diluted income per share reflects all potential dilutive common shares outstanding during the period and is computed by dividing net income attributable to Huntsman Corporation by the weighted average number of shares outstanding during the period increased by the number of additional shares that would have been outstanding as potential dilutive securities. Diluted income per share is computed using the treasury stock method for all stock-based awards. In periods with reported loss from continuing operations attributable to Huntsman Corporation, all stock-based awards are generally deemed anti-dilutive and would be excluded from the calculation of diluted income per share from continuing operations, discontinued operations and net income regardless of whether there is income or loss from discontinued operations and net income.

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Basic and diluted (loss) income per share is determined using the following information (in millions):

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Additional stock-based awards of approximately 2.9 million and 1.4 million weighted average equivalent shares of stock were outstanding during the three months ended September 30, 2024 and 2023, respectively, and approximately 2.7 million and 1.8 million weighted average equivalent shares of stock were outstanding during the nine months ended September 30, 2024 and 2023, respectively. However, these stock-based awards were not included in the computation of diluted income per share for the respective periods mentioned above because the effect would be anti-dilutive. There were 0.6 million and 0.7 million weighted average equivalent shares of stock included in the total anti-dilutive weighted average equivalent shares of stock outstanding during the three and nine months ended September 30, 2024 noted above, respectively, as a result of the reported loss from continuing operations attributable to Huntsman Corporation for the nine months ended  September 30, 2024.

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