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Net Income Per Common Share | 9 Months Ended
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Sep. 29, 2024
Net Income per Common Share | O. NET INCOME PER COMMON SHARE The following table sets forth the computation of basic and diluted net income per common share:
|  | For the Three Months Ended |  |  | For the Nine Months Ended |
|  | September 29, 2024 |  |  | October 1, 2023 |  |  | September 29, 2024 |  |  | October 1, 2023 |
|  | (in thousands, except per share amounts) |  |  | (in thousands, except per share amounts) |
Net income for basic and diluted net income per share |  | $ | 145,649 |  |  | $ | 128,116 |  |  | $ | 396,119 |  |  | $ | 331,698 |
Weighted average common shares-basic |  |  | 163,002 |  |  |  | 153,762 |  |  |  | 157,951 |  |  |  | 154,809 |
Effect of dilutive potential common shares: |  |  |  |  |  |  |  |  |  |  |  |
Restricted stock units |  |  | 768 |  |  |  | 455 |  |  |  | 637 |  |  |  | 410 |
Convertible note hedge warrant shares (1) |  |  | 460 |  |  |  | 9,168 |  |  |  | 4,751 |  |  |  | 9,009 |
Stock options |  |  | 13 |  |  |  | 26 |  |  |  | 13 |  |  |  | 39 |
Employee stock purchase plan |  |  | 10 |  |  |  | 10 |  |  |  | 5 |  |  |  | 8 |
Incremental shares from assumed conversion of convertible notes (2) |  |  | — |  |  |  | 629 |  |  |  | — |  |  |  | 762 |
Dilutive potential common shares |  |  | 1,251 |  |  |  | 10,288 |  |  |  | 5,406 |  |  |  | 10,228 |
Weighted average common shares-diluted |  |  | 164,253 |  |  |  | 164,050 |  |  |  | 163,357 |  |  |  | 165,037 |
Net income per common share-basic |  | $ | 0.89 |  |  | $ | 0.83 |  |  | $ | 2.51 |  |  | $ | 2.14 |
Net income per common share-diluted |  | $ | 0.89 |  |  | $ | 0.78 |  |  | $ | 2.42 |  |  | $ | 2.01 |
(1) Convertible notes hedge warrant shares were calculated using the difference between the average Teradyne stock price for the period and the warrant price, multiplied by the number of warrant shares. The result of this calculation, representing the total intrinsic value of the warrant, was divided by the average Teradyne stock price for the period. (2) Incremental shares from assumed conversion of the convertible notes were calculated using the difference between the average Teradyne stock price for the period and the conversion price, multiplied by the number of convertible notes shares. The result of this calculation, representing the total intrinsic value of the convertible notes, was divided by the average Teradyne stock price for the period. The computation of diluted net income per common share for the three and nine months ended September 29, 2024, excludes the effect of the potential vesting of 0.1 million and 0.5 million, respectively, of restricted stock units because the effect would have been anti-dilutive. The computation of diluted net income per common share for the three and nine months ended October 1, 2023, excludes the effect of the potential vesting of 0.1 million and 0.4 million, respectively, of restricted stock units because the effect would have been anti-dilutive.

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