Initial Public Offering (IPO)

Companies pursue an IPO to (1) raise primary capital to fund growth, pay down debt, or invest in the business; (2) provide liquidity so founders, employees, and early investors (VC/PE) can eventually sell shares; (3) create a publicly traded currency (stock) useful for acquisitions and equity compensation; and (4) gain prestige, visibility, and credibility with customers and partners. The trade-offs are significant: public companies face heavy SEC reporting requirements, quarterly earnings pressure, disclosure of competitive information, dilution of ownership and control, and substantial cost (underwriting fees plus ongoing compliance). For PE/VC backers, an IPO is one of the primary exit routes alongside a strategic sale.

A typical IPO runs 4–6 months. The company selects underwriters in a 'bake-off' and the lead bank becomes the bookrunner. Due diligence and drafting produce the S-1 registration statement filed with the SEC, including the prospectus and financials. After SEC review and comments, the bank sets a preliminary price range and the management team conducts a roadshow marketing to institutional investors. The bank runs book-building — collecting indications of demand at various prices — and on pricing night sets the final offer price, usually at a slight discount to expected trading value to ensure a successful debut. Shares are allocated to investors, trading opens the next morning, and a lock-up period (commonly 90–180 days) restricts insiders from selling immediately after.

Underwriters deliberately price an IPO slightly below the level they expect it to trade, leaving a first-day 'pop' that rewards investors and builds momentum — but too large a pop means the company 'left money on the table.' Underpricing is the classic tension between issuer and bank. To stabilize the aftermarket, deals include a greenshoe (over-allotment option), allowing underwriters to sell up to 15% more shares than originally offered; they cover the extra shorts by either exercising the option (if the stock rises) or buying in the market (if it falls), which supports the price. Alternatives to a traditional bookbuilt IPO include the direct listing (no new shares, no underwriter-set price — used by companies that don't need capital) and the SPAC (merging with a public shell company).