Hi, when I calculate the market cap of a company before IPO, I just go to the latest S-1 form and find "Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted". Then, I multiply the IPO stock price by the number of shares I found. For an after IPO company, I just go to the latest 10-Q form and find "Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted". Then, I multiply the current stock price by the number of shares I found. Is my method correct? However, I always find out that the market cap calculated by myself is a little bit less than the market cap provided by the trading platform. Is this because new shares have been issued since the S-1/10-Q report? Thanks
