A SPAC, or Special Purpose Acquisition Company, is defined as a shell company formed specifically to raise capital through an IPO with the sole purpose of acquiring an existing private company. The SPAC has no operations, no revenue, and no business plan beyond finding and merging with a target. It is sometimes called a blank check company.
How SPACs Work
The SPAC lifecycle has four stages:
Formation. A sponsor (typically an experienced investor, former executive, or private equity team) creates the SPAC entity. The sponsor invests seed capital, usually 2-3% of the intended IPO size, to cover formation costs and working capital.
IPO. The SPAC goes public, selling units (typically one share plus a fraction of a warrant) at $10 per unit. IPO proceeds go into a trust account invested in U.S. Treasury securities or money market funds. The trust protects investor capital until a deal closes or the SPAC liquidates.
Target search and de-SPAC. The sponsor team identifies a private company to acquire. Once a target is selected, the SPAC negotiates a merger agreement. Public shareholders vote on the proposed transaction. If approved, the private company merges with the SPAC and becomes publicly listed. This process is called “de-SPACing.”
Post-merger. The combined entity trades as a regular public company. The former private company has achieved a public listing without going through a traditional IPO process.
SPAC Economics and the Promote
The sponsor’s compensation structure is the most distinctive (and controversial) feature of SPACs.
The sponsor receives “founder shares,” typically 20% of the SPAC’s post-IPO equity, for its nominal seed investment. On a $200 million SPAC, the sponsor puts in roughly $5 million and receives shares worth approximately $40 million if the deal closes at NAV. This 20% promote comes directly from the value available to public shareholders.
Sponsors also often receive warrants, which provide additional upside if the stock appreciates post-merger. The combined effect of the promote and warrants means public shareholders experience meaningful dilution.
This structure has been criticized because it incentivizes deal completion over deal quality. The sponsor profits as long as a merger happens, even if the acquired company’s stock declines post-merger. Public shareholders bear the downside.
Shareholder Protections
SPAC shareholders have a critical protection: the right to redeem their shares for their pro-rata share of the trust (roughly $10 per share plus accrued interest) if they vote against the merger or simply choose not to participate. This makes a SPAC investment functionally equivalent to holding Treasuries with a free option on a potential deal.
High redemption rates became a defining feature of the SPAC market in 2022-2023, with some SPACs seeing 80-95% of shares redeemed. This left the merged company with far less cash than expected and created significant challenges for post-merger operations.
The SPAC Boom and Correction
SPACs experienced explosive growth in 2020-2021. According to SPAC Research, over 600 SPACs went public in 2021 alone, raising more than $160 billion. The surge was driven by low interest rates, abundant liquidity, and SPAC mergers as an alternative path to public markets for high-growth companies, particularly in technology and healthcare.
The correction was equally dramatic. Regulatory scrutiny from the SEC increased, particularly around forward-looking projections in de-SPAC marketing materials. Many post-merger companies underperformed their projections, and SPAC stock performance lagged the broader market. New SPAC issuance fell sharply in 2022 and remained subdued through 2024.
SPACs vs. Other Exit Paths
For private companies and their investors, a SPAC merger is one of several exit strategies:
- Traditional IPO - More rigorous process, higher credibility, no promote dilution, but longer timeline and market-dependent pricing.
- Take-private - Sale to a PE fund. Cash certainty but no public market access.
- Direct listing - Public listing without new capital raise. No underwriting fees but also no capital infusion.
- SPAC merger - Faster than traditional IPO, negotiated price, ability to use projections. But significant dilution from the promote structure.
For fund managers evaluating portfolio company exits, a SPAC merger can provide liquidity and public market access, but the dilution from sponsor economics and the risk of high shareholder redemptions require careful analysis of the net proceeds the portfolio company and its investors will actually receive.
Frequently Asked Questions
How does a SPAC differ from a traditional IPO?
In a traditional IPO, an operating company hires underwriters and goes through a months-long SEC registration process. In a SPAC merger (de-SPAC), a private company merges with an already-public shell company, bypassing the traditional IPO process. This can be faster, provides price certainty (the deal is negotiated rather than subject to book-building), and allows forward-looking projections in marketing materials, which traditional IPOs cannot include.
What happens if a SPAC does not find a target?
SPACs typically have 18 to 24 months to identify and complete an acquisition. If the SPAC fails to close a deal within that window, it must return the trust funds to shareholders plus accrued interest. The sponsor loses its initial investment (typically 2-3% of the trust) and the founder shares become worthless. Extensions are sometimes possible with shareholder approval.
What is SPAC sponsor economics?
SPAC sponsors typically receive 20% of the post-IPO shares (called 'founder shares' or the 'promote') for a nominal investment of roughly 2-3% of the trust value. If the SPAC completes a deal, this represents significant dilution to public shareholders. Sponsors may also receive warrants. The promote structure has drawn criticism because it rewards deal completion regardless of the quality of the acquisition.
