Definition (canonical)
An IPO (Initial Public Offering) is the first sale of a company's shares to the public, after which they trade on a stock exchange. It converts private equity into a liquid, publicly priced asset — buying capital, liquidity and prestige at the price of disclosure, scrutiny and quarterly gravity.
Why companies do it — the honest list
Capital at scale for expansion beyond what private markets offer comfortably; liquidity for founders, employees (options finally spendable) and VC funds that must return money; acquisition currency — listed shares buy other companies; profile — customers and talent treat listing as a trust mark. The unlisted reason that matters: discipline — some owners go public precisely to force institutional-grade governance upon themselves.
The process, compressed
Preparation (12–24 months): audited multi-year financials, governance rebuild, the equity story. Execution (~6 months): underwriters selected, prospectus drafted and approved by the regulator, roadshow to institutional investors, bookbuilding sets the price, listing day. Cost reality: underwriting fees around 3–7% of proceeds plus advisors — and then the PERMANENT bill: reporting teams, audits, investor relations, compliance; public-company running costs reach seven figures yearly even for mid-caps. Add the soft costs: strategy explained quarterly, competitors reading your filings, and a share price grading management daily.
Is public status worth it — and the alternatives
The trade fits companies with scale (predictable results survive quarterly scrutiny), a capital appetite matching public markets' depth, and equity stories institutions understand. It misfits businesses needing long dark periods of investment, or owners allergic to disclosure. Grown-up alternatives: staying private longer (late-stage funds provide liquidity), secondary sales for early holders, private debt, or a trade sale — for many mid-sized firms the honest analysis ends with "an exchange listing solves a problem we don't have". Junior markets (growth segments of exchanges) sit in between: lighter requirements, real visibility, but thinner liquidity than headlines suggest.
FAQ
How much of the company is floated? Typically 20–40% initially — enough for liquidity, not control; lock-ups keep insiders from selling for ~6 months post-IPO.
What is underpricing? The first-day "pop" — shares priced below market appetite transfer money from the company to allocated investors; some pop is marketing, a big one is a pricing error.
IPO vs direct listing vs SPAC? Direct listings skip raising new capital; SPAC mergers trade speed for dilution and reputation risk. The classic IPO remains the standard for raising while listing.
Related: Equity · Valuation · Venture Capital · Governance Reviewed: 2026-07-15 · Sources: capital markets canon