Although mainly review from previous videos, Sal goes further into depth on IPOs and explores reasons companies raise equity and others purchase it. As he describes the assets and equity of a business, note there is an error in his calculations around 2:30 of pre-money and post-money valuation; address this before moving on. Sal reviews investment liquidity and purposes for an IPO, explaining ticker symbols and trading. Like the last video, he details the role of investment banks. Learners investigate reasons people purchase shares in a company, introducing dividends and corporate buyouts.