Why BigCommerce Holdings Plunged 29.3% in September

Shares of BigCommerce Holdings (NASDAQ: BIGC) fell 29.3% during the month of September, according to data from S&P Global Market Intelligence. Most notably, BigCommerce went public on Aug. 5 and immediately tripled on its first day of trading, only to then continue rising and finishing the month at nearly five times its IPO price. New IPO stocks can have very big stock price movements, both to the upside but also to the downside, especially once actual numbers fail to live up to high expectations.