Two Paths to the Same Destination
For private companies seeking to become publicly traded, there are two primary routes: the traditional IPO and the Special Purpose Acquisition Company (SPAC). Both result in a publicly listed company, but the process, economics, and implications for investors differ significantly.
What Is a Traditional IPO?
A traditional IPO is the time-tested process of hiring investment banks (underwriters) to manage a company's first public offering. The company files an S-1 with the SEC, conducts a roadshow to market shares to institutional investors, and begins trading on a major exchange.
Timeline: 6–12 months from engagement with underwriters to first day of trading.
Key advantages:
Key disadvantages:
What Is a SPAC?
A SPAC — Special Purpose Acquisition Company — is a publicly traded shell company with no operations. It raises capital through its own IPO, then uses that capital to acquire a private company within a set timeframe (usually 18–24 months). When the acquisition (called a "de-SPAC") closes, the target company becomes publicly listed.
Timeline: 3–5 months from target identification to completion, assuming the SPAC is already public and funded.
Key advantages:
Key disadvantages:
The Numbers: How They Compare
Cost Structure
| Factor | Traditional IPO | SPAC |
|---|---|---|
| Underwriting fees | 5–7% of proceeds | 5.5% (deferred) |
| Sponsor promote | None | 20% dilution |
| Legal/accounting | $2–5M | $5–10M |
| Total effective cost | 7–10% | 15–25% |
The SPAC path is significantly more expensive when you factor in sponsor dilution and the various transaction fees. The "quick and easy" narrative often obscures the true cost.
Valuation Accuracy
Traditional IPOs benefit from institutional bookbuilding, where dozens of sophisticated investors submit orders at various prices. This creates genuine price discovery.
SPAC valuations are negotiated between the SPAC sponsor and the target company's board. While both sides have advisors, the lack of broad market input means valuations can be disconnected from reality — either too high (wishful thinking) or too low (sponsor leverage).
Research shows that de-SPAC companies underperform traditional IPOs by an average of 15–30% in the first year of trading, suggesting that SPAC valuations are systematically too high.
Regulatory Environment
The SEC significantly tightened SPAC regulations in 2024–2025:
These changes have removed many of the regulatory advantages that made SPACs attractive.
When Does Each Path Make Sense?
Choose a Traditional IPO When:
Choose a SPAC When:
The Third Option: Direct Listings
Worth mentioning is the direct listing, pioneered by Spotify (2018) and Palantir (2020). In a direct listing, existing shares are listed directly on an exchange without new capital being raised or underwriters being hired.
Advantages: Zero underwriting fees, no lock-up period, no dilution, market-based price discovery.
Disadvantages: No new capital raised (unless using a "primary direct listing"), no underwriter stabilization on first day, limited to companies that don't need fresh capital.
Direct listings work best for well-known brands with strong balance sheets that want to provide liquidity to insiders without the costs and constraints of a traditional IPO.
The Verdict for 2026
The data is clear: traditional IPOs have reasserted their dominance.
SPAC issuance has fallen over 80% from its 2021 peak. Increased regulation, poor post-merger performance, and the return of a healthy IPO market have marginalized the SPAC model. It hasn't disappeared entirely — quality SPACs with experienced sponsors still find targets — but the era of SPACs as the default path to public markets is over.
For most companies going public in 2026, the traditional IPO remains the gold standard. It's more expensive in direct fees than some alternatives, but the benefits of institutional support, analyst coverage, and genuine price discovery outweigh the costs.
Conclusion
There's no one-size-fits-all answer to "How should a company go public?" The right path depends on the company's financials, timeline, capital needs, and market conditions. But understanding the trade-offs between SPACs, traditional IPOs, and direct listings is essential for both companies and investors navigating public markets.