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NET LOSS PER SHARE (Tables) | 5 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2020 | Jun. 30, 2021 | Dec. 31, 2020
Summary of Basic and Diluted net Loss Per Share Attributable to Common Stockholders | The following table reflects the calculation of basic and diluted net loss per ordinary share (in dollars, except per share amounts):
|  | For the Period from July 28, 2020 (inception) Through December 31, 2020 |
Redeemable Class A Ordinary Shares |  |  |  |
Numerator: Earnings allocable to Redeemable Class A Ordinary Shares |  |  |  |
Interest Income |  | $ | 4,846 |
Net Earnings |  | $ | 4,846 |
Denominator: Weighted Average Redeemable Class A Ordinary Shares |  |  |  |
Redeemable Class A Ordinary Shares, Basic and Diluted |  |  | 31,553,191 |
Earnings/Basic and Diluted Redeemable Class A Ordinary Shares |  | $ | 0.00 |
|  | For the Period from July 28, 2020 (inception) Through December 31, 2020 |
Non-Redeemable Class B Ordinary Shares |  |  |  |
Numerator: Net Loss minus Redeemable Net Earnings |  |  |  |
Net Loss |  | $ | (12,341,951 | )
Redeemable Net Earnings |  | $ | (4,846 | )
Non-Redeemable Net Loss |  | $ | (12,346,797 | )
Denominator: Weighted Average Non-Redeemable Class B Ordinary Shares |  |  |  |
Non-Redeemable Class B Ordinary Shares, Basic and Diluted(1) |  |  | 7,732,484 |
Loss/Basic and Diluted Non-Redeemable Class B Ordinary Shares |  | $ | (1.60 | )
(1) | As of December 31, 2020, basic and diluted shares are the same as there are no non-redeemable securities that are dilutive to the shareholders.
| The following table reflects the calculation of basic and diluted net loss per ordinary share (in dollars, except per share amounts):
|  | Three Months Ended June 30, 2021 |  |  | Six Months Ended June 30, 2021 |
Redeemable Class A Ordinary Shares |  |  |  |  |  |  |  |
Numerator: Earnings allocable to Redeemable Class A Ordinary Shares |  |  |  |  |  |  |  |
Interest Income |  | $ | 4,863 |  |  | $ | 9,673 |
Redeemable Net Earnings |  | $ | 4,863 |  |  | $ | 9,673 |
Denominator: Weighted Average Redeemable Class A Ordinary Shares |  |  |  |  |  |  |  |
Redeemable Class A Ordinary Shares, Basic and Diluted |  |  | 32,000,000 |  |  |  | 32,000,000 |
Earnings/Basic and Diluted Redeemable Class A Ordinary Shares |  | $ | 0.00 |  |  | $ | 0.00 |
Non-Redeemable Class B Ordinary Shares |  |  |  |  |  |  |  |
Numerator: Net Loss minus Redeemable Net Earnings |  |  |  |  |  |  |  |
Net Loss |  | $ | (1,059,094 | ) |  | $ | (24,619,357 | )
Less: Redeemable Net Earnings |  |  | (4,863 | ) |  |  | (9,673 | )
Non-Redeemable Net Loss |  | $ | (1,063,957 | ) |  | $ | (24,629,030 | )
Denominator: Weighted Average Non-Redeemable Class B Ordinary Shares |  |  |  |  |  |  |  |
Non-Redeemable Class B Ordinary Shares, Basic and Diluted |  |  | 8,000,000 |  |  |  | 8,000,000 |
Loss/Basic and Diluted Non-Redeemable Class B Ordinary Shares |  | $ | (0.13 | ) |  | $ | (3.08 | )
Rocket Lab USA, Inc. |  |  |
Summary of Basic and Diluted net Loss Per Share Attributable to Common Stockholders |  | The following table summarizes the computation of basic and diluted net loss per share attributable to common stockholders of the Company for the six months ended June 30, 2021 and 2020:
|  | Six-Months Ended June 30, |
|  | 2021 |  |  | 2020 |
Numerator |  |  |  |  |  |  |  |
Net loss attributable to common shareholders-basic and diluted |  | $ | 32,547 |  |  | $ | 23,453 |
Denominator |  |  |  |  |  |  |  |
Weighted average common shares outstanding-basic and diluted |  |  | 8,708,271 |  |  |  | 8,178,946 |
Net loss per share attributable to common stockholders-basic and diluted |  | $ | 3.74 |  |  | $ | 2.87 |
| The following table summarizes the computation of basic and diluted net loss per share attributable to common stockholders of the Company for the years ended December 31:
|  | 2020 |  |  | 2019 |
Numerator |  |  |  |  |  |  |  |
Net loss attributable to common shareholders-basic and diluted |  | $ | 55,005 |  |  | $ | 30,360 |
Denominator |  |  |  |  |  |  |  |
Weighted average common shares outstanding-basic and diluted |  |  | 8,324,252 |  |  |  | 8,016,507 |
Net loss per share attributable to common stockholders-basic and diluted |  | $ | 6.61 |  |  | $ | 3.79 |
Summary of Diluted Net Loss Per Share Attributable to Common Stockholders |  | The following equity shares were excluded from the calculation of diluted net loss per share attributable to common stockholders because their effect would have been anti-dilutive for the six months ended June 30, 2021 and 2020:​​​​​​​
|  | Six-Months Ended June 30, |
|  | 2021 |  |  | 2020 |
Preferred stock |  |  | 31,330,513 |  |  |  | 31,330,513 |
Preferred stock warrants |  |  | 124,062 |  |  |  | 124,062 |
Common stock warrants |  |  | 64,616 |  |  |  | 51,184 |
Stock options |  |  | 2,357,382 |  |  |  | 2,945,022 |
| The following equity shares were excluded from the calculation of diluted net loss per share attributable to common stockholders because their effect would have been anti-dilutive for the years ended December 31, 2020 and 2019:​​​​​​​
|  | 2020 |  |  | 2019 |
Preferred stock |  |  | 31,330,513 |  |  |  | 30,680,373 |
Preferred stock warrants |  |  | 124,062 |  |  |  | 124,062 |
Common stock warrants |  |  | 64,616 |  |  |  | 51,184 |
Stock options |  |  | 2,438,141 |  |  |  | 3,009,360 |

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