What it means
A SPAC starts life as an empty corporate box created by a sponsor, often an experienced investor or industry executive. It sells units to the public, usually at $10 each, and places nearly all of that money in a trust holding short dated government securities.
The shell then hunts for a private business willing to merge with it and inherit its stock market listing. For the target company, the appeal is a faster and more certain route to being publicly traded than a conventional flotation, with a valuation negotiated privately rather than set by a book of institutional orders.
For the sponsor, the appeal is the founder stake, commonly around 20% of the post-listing shares, bought for a token amount. The crucial feature for investors is the redemption right.
Before a merger completes, every public shareholder can choose to take back their share of the trust with interest instead of holding shares in the combined business, which makes the investment behave a little like a short term bond with a free option attached. That right is also the mechanism that most often breaks a deal.
If a large proportion of investors redeem, the cash actually delivered to the target can end up far below the headline figure, which is why sponsors line up private investment in public equity, known as a PIPE, to plug the gap. Dilution is the recurring criticism.
Founder shares, warrants and advisory fees all take a slice, so the cash backing each surviving share is usually well below the $10 that was originally paid in, and the effect falls hardest on shareholders who stay in rather than redeem.
In practice
Real-world examples.
Example
An electric bus manufacturer with $30 million of revenue merges with a SPAC at a $1.6 billion valuation, a multiple no conventional flotation would have supported. Redemptions run at 85%, the promised $250 million of funding arrives as $61 million, and the company has to raise expensive convertible debt within nine months.
Example
A private equity firm sponsors a SPAC targeting mid sized specialty chemicals businesses, raising $400 million. It finds a family owned coatings maker whose owners want liquidity but not the scrutiny of an eighteen month flotation process, and the deal closes in five months with only 20% of investors redeeming.
Example
A hedge fund buys SPAC units at $10 purely for the redemption right, planning to take its money back with interest whatever the deal turns out to be. It keeps the free warrants attached to the units, so its downside is close to zero and its upside depends entirely on whether the merged company trades above $11.50.
Think of it
“SPAC is formed just to buy another company-a shortcut to going public.
Formula
Calculation
Cash delivered to the target = trust value - redemptions + PIPE proceeds
Cash backing per share after the deal = cash delivered / total shares held by non-target investors
Meridian Crossing Acquisition Corp, an invented SPAC, sells 30 million units at $10, placing $300 million in trust, and the sponsor takes 7.5 million founder shares, which is 20% of the 37.5 million shares then in issue. By the time a merger is put to a vote, the trust has earned interest and stands at $306 million, or $10.20 per public share.
Investors holding 18 million shares, 60% of the public total, choose to redeem, taking 18,000,000 x $10.20 = $183.6 million out of the trust. That leaves 12,000,000 x $10.20 = $122.4 million, and the sponsor adds a PIPE of $75 million at $10 a share, so the target receives $122.4 million + $75 million = $197.4 million.
The non-target investors now hold 12 million public shares, 7.5 million founder shares and 7.5 million PIPE shares, a total of 27 million shares supported by $197.4 million of cash. That is $197.4 million / 27,000,000 = $7.31 per share, so anyone who paid $10 and stayed in is left with cash backing of $7.31 and must rely on the target's growth to make up the difference.Case study
Seen in the real world.
The following is an illustrative and entirely fictional example. Northgate Frontier Acquisition Corp, an invented shell led by two former logistics executives, raised $250 million and spent eighteen of its twenty four months reviewing targets without agreeing terms. With three months left, the sponsors faced a choice between returning the money and losing their $6 million of at risk capital, or accepting a target they had earlier ranked third.
They chose the third ranked target, a warehouse robotics business, and negotiated a valuation that public market investors quickly judged generous. Redemptions reached 78%, the PIPE was only half filled, and the merged company listed with $71 million rather than the $310 million originally discussed in the investor presentation.
In this fictional case the lesson was structural rather than personal: a fixed deadline plus sponsor economics that reward almost any completed deal will push even careful people towards a marginal transaction. Later SPACs in the illustrative example addressed it by tying part of the founder stake to the share price two years after completion.
Watch out
Common mistakes.
- Treating the announced deal size as the money the target will actually receive, when redemptions routinely cut it by half or more.
- Assuming the $10 unit price means the shares are worth $10, when founder shares and warrants dilute the cash backing well below that level.
- Believing that a SPAC merger involves lighter scrutiny of the target's numbers, when regulators and lawyers apply substantially the same disclosure standards as a flotation.
Questions
People also ask.
What happens if the SPAC never finds a target?
The trust is wound up and public shareholders get their money back with interest, while the sponsor loses the capital it put at risk to fund the search.
Why do sponsors get 20% of the company for almost nothing?
It is payment for creating the vehicle, funding the search costs and taking the risk that no deal completes, though investors increasingly negotiate that percentage down.
Is a SPAC merger cheaper than a normal flotation?
Rarely once dilution is counted; the underwriting fee is lower but the founder stake and warrants usually cost existing owners far more.
From the founder's library

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