What Is a SPAC? Blank Check Companies Explained

A Special Purpose Acquisition Company (SPAC) is a shell company with no operations — created solely to raise money through an IPO and then use that money to acquire a private company, effectively taking the target public without a traditional IPO. SPACs exploded in popularity during 2020-2021, raising over $250 billion, before a wave of poor performance, regulatory scrutiny, and investor disillusionment sharply curtailed issuance. Understanding SPACs — including why most have failed — provides valuable lessons about speculation, incentive misalignment, and the importance of quality analysis.

How SPACs Work

A SPAC sponsor (typically a private equity professional, hedge fund manager, or celebrity) creates a shell company and takes it public through an IPO, raising money from investors. The SPAC IPO typically sells units at $10 each. The proceeds are held in a trust account while the sponsor searches for a private company to acquire — usually within 18-24 months.

When the sponsor identifies a target, they announce a "de-SPAC" merger. Shareholders vote on the deal; if approved, the SPAC merges with the target company, and the target becomes publicly traded. Shareholders who don't like the proposed acquisition can redeem their shares for the original $10 plus interest — a feature that provides downside protection before the merger closes.

The sponsor receives a "promote" — typically 20% of the post-merger company's shares — as compensation for finding and executing the deal. This promote means the sponsor profits handsomely even if the acquired company performs poorly, creating a fundamental incentive misalignment: the sponsor is rewarded for completing a deal, not for completing a good deal.

Why Most SPACs Have Underperformed

The SPAC structure has produced consistently poor returns for investors. Research by Stanford Law School professors Klausner and Ohlrogge found that the average SPAC has underperformed the market significantly after the de-SPAC merger, with many declining 50-80% from their merger-date prices. Several factors explain this underperformance.

The 20% sponsor promote dilutes existing shareholders — before the acquired company earns a single dollar, 20% of the value has been transferred to the sponsor. The time pressure to complete a deal within 18-24 months incentivizes sponsors to acquire whatever's available rather than wait for an excellent opportunity. And the companies acquired via SPAC tend to be earlier-stage, less proven businesses that couldn't meet the disclosure and scrutiny requirements of a traditional IPO.

The SPAC boom of 2020-2021 amplified these problems. With hundreds of SPACs competing for a limited number of attractive private companies, acquisition prices were inflated, due diligence was rushed, and many deals were based on projections that never materialized. The subsequent crash in SPAC stock prices was a predictable consequence of paying too much for too-early businesses with misaligned sponsor incentives.

SPACs and Quality Investing

SPACs violate virtually every principle of quality investing. No operating history to analyze (the SPAC itself has no business). No proven moat (the target company is typically pre-profit or early-stage). Misaligned management incentives (the sponsor profits regardless of outcome). And often aggressive valuations based on speculative projections rather than demonstrated earnings.

The SPAC era serves as a cautionary tale about the importance of quality discipline. When capital is abundant and enthusiasm is high, the market creates new vehicles for channeling money into speculative investments. Quality investors who avoided SPACs — because they couldn't analyze a business with no operations, no moat, and misaligned incentives — preserved capital that speculative SPAC investors lost.