The life cycle, in the SEC's account. A sponsor forms the SPAC and takes it public. The SEC's investor bulletin describes the pieces. The IPO is "typically priced at $10 per unit," each unit "consisting of common stock and warrants," and the units later split so the shares and warrants trade separately with their own ticker symbols. The proceeds, less amounts used for certain taxes, "are typically held in a trust account or an escrow account," which the SEC likens to the escrow in a house purchase, "held by a third party until the transaction is consummated," and generally invested "in relatively safe, interest-bearing instruments," though the bulletin notes there is no rule requiring that. The SPAC "will typically provide for a two-year period to identify and complete a de-SPAC transaction, but it can be as long as three years," may extend with shareholder approval, and if listed on an exchange "is generally required to complete a de-SPAC transaction within three years of its IPO or face delisting." If it finds no target, it liquidates and each shareholder receives a pro rata share of the trust.
The redemption right, and the trap in buying above trust value. When a target is found, the SPAC's shareholders "will typically have the opportunity to redeem their shares and, in many cases, vote on the de-SPAC transaction." A holder who does not like the deal takes cash, roughly the original $10 plus accumulated interest; a holder who does becomes a shareholder of the combined company. The SEC's warning concerns the open market: "if you purchased your shares on the open market, you are only entitled to your pro rata share of the trust or escrow account and not the price at which you bought the SPAC shares on the market." Its example is a SPAC that sold units at $10 and whose shares an investor later bought at $12: 100 shares are backed by about $1,000 of trust, "not the $1,200 you paid." Between the IPO and the deal, then, a SPAC share is a cash claim with an option attached, and any premium over the trust value is a bet on the sponsor finding a deal the market will like.
The sponsor's economics, and where the dilution comes from. The bulletin states the structural fact plainly: sponsors "generally purchase equity in the SPAC at more favorable terms than investors in the IPO or subsequent investors on the open market," and their shares "may have been obtained for nominal consideration." So although "most of the SPAC's capital has been provided by IPO investors, the sponsors and potentially other initial investors will benefit more than investors from the SPAC's completion of a de-SPAC transaction and may have an incentive to complete a transaction on terms that may be less favorable to you." Two mechanisms compound it. Heavy redemptions shrink the trust while the sponsor's block stays the same size, so the sponsor's percentage of the surviving SPAC rises as public money leaves. And the deal often needs additional financing, frequently from the sponsor, which "may dilute your interest in the combined company or may be provided in the form of a loan or security that has different rights from your investments." Warrants add a third layer: a SPAC "can redeem warrants pursuant to their terms," often once the stock trades above a stated price such as $18 for a period, and a holder who misses the redemption notice and fails to exercise can find the warrants "essentially worthless."
The 2024 rules. In January 2024 the SEC adopted Subpart 1600 of Regulation S-K and related rules, effective July 1, 2024, with a later compliance date of June 30, 2025 for one item. The adopting release summarizes what they do: disclosure requirements covering "compensation paid to sponsors, conflicts of interest, dilution, and the determination, if any, of the board of directors ... regarding whether a de-SPAC transaction is advisable and in the best interests of the SPAC and its security holders"; a minimum dissemination period for the documents sent to shareholders before a de-SPAC vote; a rule deeming a business combination involving a reporting shell company to be a sale of securities to that shell company's shareholders, so that the target's disclosure comes with Securities Act liability; a re-determination of smaller reporting company status after the deal; amendments on the use of projections; and guidance on when a SPAC might be an investment company. The bulletin's list of what a SPAC prospectus must now highlight follows from those rules: material conflicts between public shareholders and the sponsor, the sponsor's compensation and the securities issued to it, "material dilution to public shareholders," any agreements bearing on whether to proceed, and the sponsor's experience. Separately, the safe harbor for forward-looking statements under the Private Securities Litigation Reform Act has never been available to a blank check company, a point the earnings guidance page covers, and the 2024 release addressed its scope for de-SPAC transactions.
Reading one before investing. The SEC's advice reduces to documents. The IPO prospectus discloses the trust terms, the redemption rights, the deadline, the sponsor's holdings and the warrant terms. When a deal is announced, the proxy statement/prospectus, information statement/prospectus or tender offer statement discloses the target's business and financial statements, the parties' interests, the background of the negotiation and the board's determination. All of it is on EDGAR. What none of it discloses is whether the target is worth what the deal implies, and the SEC notes that a SPAC "is not obligated to pursue a target in the identified industry" it named in its prospectus.