Unlike traditional IPOs where issuers raise capital by selling new common shares of stock to investors, SPAC IPOs are issued in units. Units typically consist of 1 Class A common share and a fraction of a unit (often in ½, ⅓ or ¼ increments). 52 days post-IPO, the unit undergoes either a mandatory or voluntary split, resulting in the decoupling of the common shares and warrants. In order to ensure that SoFi Invest Members hold whole warrants post-split, SoFi has decided to require that orders are placed in 4-unit increments.