Since it’s not possible to buy TikTok stock from the stock market, there might be other possibilities for investors to invest in ByteDance pre-IPO. Some platforms like EquityZen provide a secondary market for pre-IPO equity. Another possibility is to invest in a private equity fund that in turn invest in companies like ByteDance in venture capital rounds. Both EquityZen and AngelList provide such funds. That said, waiting for ByteDance to become public seems to be the simplest route to invest in TikTok.