SpacDeskSPAC Glossary
Plain-language definitions of SPAC terminology, each linked to real SEC filing examples
SPAC Structure
Trust Account
An escrow account, typically held at a major bank, where the proceeds from a SPAC's IPO are deposited and held in U.S. Treasury securities or money-market funds until a business combination is completed or the SPAC liquidates.
Redemption
The right of public SPAC shareholders to tender their shares back to the trust account at a per-share price equal to the pro-rata trust value, typically exercised around the time of a business combination or extension vote.
Blank-Check CompanyDraft
A development-stage company with no specific business plan or operating history, formed solely to raise capital through an IPO for the purpose of acquiring or merging with an unidentified target — the legal classification that underlies every SPAC.
SPAC IPODraft
The initial public offering of a blank-check company, in which units (typically consisting of one share and a fraction of a warrant) are sold to public investors at $10.00 per unit, with substantially all proceeds deposited into a trust account.
UnitsDraft
The composite security sold in a SPAC IPO, typically consisting of one share of common stock and a fraction of a warrant (often one-half or one-third), which trade together initially and later separate into their component parts.
WarrantsDraft
Long-dated call options issued as part of SPAC units, giving the holder the right to purchase one share of common stock at $11.50 per share, typically exercisable after the later of 30 days post-business-combination or 12 months post-IPO.
RightsDraft
Securities included in some SPAC units that automatically convert into a fraction of a share of common stock (typically one-tenth) upon completion of the business combination, providing additional equity to IPO investors without requiring exercise.
Founder SharesDraft
Class B common stock purchased by the SPAC sponsor for a nominal amount prior to the IPO, typically representing 20% of the total post-IPO shares outstanding and converting to Class A shares upon closing of the business combination.
Public SharesDraft
Class A common shares sold to public investors through the SPAC IPO (or acquired on the secondary market), carrying full redemption rights and representing approximately 80% of the post-IPO equity before any additional issuances.
SPAC SponsorDraft
The entity — typically a private-equity firm, hedge fund, or group of experienced dealmakers — that forms the SPAC, funds its pre-IPO expenses, purchases founder shares, and leads the search for an acquisition target.
Transaction Process
De-SPAC
The process by which a SPAC completes its business combination with a target company, resulting in the target becoming a publicly traded entity — effectively a reverse merger facilitated by the SPAC's existing exchange listing.
Business Combination
The merger, acquisition, or other transaction through which a SPAC combines with a target operating company, fulfilling the SPAC's stated purpose and resulting in the target becoming publicly traded.
Letter of IntentDraft
A non-binding preliminary agreement between a SPAC and a potential target company outlining the key terms of a proposed business combination, typically signed before detailed due diligence and definitive documentation.
Definitive AgreementDraft
The binding merger agreement between a SPAC and its target company, specifying the exact terms of the business combination — valuation, share exchange ratios, earnout structures, closing conditions, and representations and warranties.
Proxy VoteDraft
The shareholder vote — solicited via a proxy statement (DEFM14A) or registration statement (S-4) — in which SPAC public shareholders approve or reject the proposed business combination and decide whether to exercise their redemption rights.
Extension VoteDraft
A shareholder vote to extend the SPAC's deadline for completing a business combination beyond its original charter term, typically in 3-, 6-, or 12-month increments, often requiring the sponsor to deposit additional funds into the trust.
LiquidationDraft
The dissolution of a SPAC that fails to complete a business combination within its charter deadline, resulting in the pro-rata distribution of the trust account (plus accrued interest, minus taxes and dissolution costs) to public shareholders.
Tender OfferDraft
An alternative to the proxy vote in which the SPAC offers to repurchase shares directly from public shareholders, used in some business combinations and extension transactions to streamline the approval process and reduce timeline.
Minimum Cash ConditionDraft
A closing condition in the merger agreement specifying the minimum amount of cash the SPAC must have available at closing — from trust proceeds net of redemptions, plus PIPE and other committed capital — for the business combination to proceed.
Fairness OpinionDraft
An independent assessment by a financial advisor stating that the terms of the proposed business combination are fair, from a financial point of view, to the SPAC's public shareholders — a standard governance safeguard but not a mandatory requirement.
Shareholder ApprovalDraft
The formal vote by SPAC shareholders to authorize the proposed business combination, charter amendments, or other significant corporate actions — typically requiring a simple majority of votes cast at a meeting where a quorum is present.
Closing ConditionsDraft
The set of requirements that must be satisfied (or waived) before a SPAC business combination can close — including shareholder approval, minimum cash thresholds, regulatory clearances, absence of material adverse changes, and accuracy of representations and warranties.
Financing
PIPE Financing
A Private Investment in Public Equity — a committed capital raise from institutional investors that closes simultaneously with the SPAC's business combination, providing additional cash to fund the deal and offset redemptions.
Forward Purchase Agreement
A pre-arranged contract, typically between the SPAC sponsor (or an affiliated fund) and the SPAC, to purchase a specified number of shares at a set price upon completion of the business combination, providing committed capital independent of the IPO trust.
Convertible NoteDraft
A debt instrument used in SPAC transactions that converts into equity — typically common stock or warrants — at or after the business combination, often issued by the sponsor as a working-capital bridge or by the combined company as post-closing financing.
Private PlacementDraft
The simultaneous private sale of warrants (or shares) to the SPAC sponsor at the time of the IPO, generating proceeds that are deposited into the trust or used to fund the SPAC's working capital and operating expenses during its search period.
Non-Redemption AgreementDraft
A contract in which certain shareholders agree not to redeem their shares at the upcoming vote in exchange for consideration — typically additional shares, warrants, or cash payments — helping the SPAC meet minimum cash conditions and avoid deal failure.
Backstop AgreementDraft
An arrangement in which a third party (often a hedge fund or the sponsor) commits to purchase shares from redeeming SPAC shareholders, effectively absorbing redemptions to ensure the trust retains sufficient cash for the business combination to close.
Equity Line of CreditDraft
A committed facility allowing the post-de-SPAC company to sell newly issued shares to a counterparty (typically a specialized fund) at a discount to market price over time, providing a flexible source of dilutive capital when traditional financing is unavailable.
Working Capital LoanDraft
A loan from the SPAC sponsor (or its affiliates) to the SPAC to fund operating expenses during the target search period, typically convertible into warrants or repaid from trust proceeds at closing — not drawn from the trust itself.
Deferred Underwriting FeeDraft
The portion of the IPO underwriter's commission — typically 3.5% of gross IPO proceeds — that is held in the trust account and paid only upon successful completion of the business combination, forfeited entirely if the SPAC liquidates.
Regulatory
S-4 Registration Statement
The SEC registration statement filed when a SPAC issues new securities to the target company's shareholders as part of the business combination, serving as both a prospectus for the new shares and a proxy statement for the shareholder vote.
DEFM14A (Proxy Statement)Draft
The definitive proxy statement filed with the SEC to solicit shareholder votes for a SPAC merger, containing detailed disclosure about the target company, deal terms, financial projections, risk factors, and the sponsor's conflicts of interest.
Super 8-KDraft
The comprehensive current report filed within four business days after a SPAC business combination closes, containing the combined company's full financial statements, pro forma financials, management details, and other information equivalent to a Form 10 registration — effectively the new public company's debut regulatory filing.
Form 8-K (Current Report)Draft
The SEC filing used by public companies to disclose material events on a timely basis — in the SPAC context, 8-Ks announce deal agreements, PIPE commitments, extension votes, redemption results, trust deposits, and other significant developments.
Form 10-K (Annual Report)Draft
The comprehensive annual report filed with the SEC by SPACs and post-merger companies, containing audited financial statements, MD&A, risk factors, and — for searching SPACs — critical trust account balances and working capital disclosures.
Form 10-Q (Quarterly Report)Draft
The quarterly financial report filed with the SEC, providing unaudited financial statements and management discussion — for SPACs, the primary source of updated trust account balances and working capital positions between annual reports.
Form S-1 (Registration Statement)Draft
The initial registration statement filed by a SPAC for its IPO — and later by the post-merger company to register the resale of PIPE shares, founder shares, and other restricted securities — providing comprehensive disclosure to public investors.
Form EFFECTDraft
The SEC's notice declaring a registration statement (S-1, S-4, or F-4) effective, permitting the registered securities to be sold to the public — a critical milestone that enables the SPAC IPO, the de-SPAC shareholder vote, or the resale of restricted post-merger shares.
SEC Comment LetterDraft
Written feedback from the SEC's Division of Corporation Finance requesting additional disclosure, clarification, or revision in a SPAC's registration statement or proxy filing — a routine part of the review process that can significantly affect deal timelines.
iXBRL (Inline XBRL)Draft
The structured data format embedded in SEC financial filings that tags individual financial values with standardized identifiers, enabling automated extraction of trust balances, share counts, and other quantitative data from SPAC filings.
Economics & Incentives
Lockup
A contractual restriction preventing insiders — typically the sponsor, directors, officers, and PIPE investors — from selling their shares for a specified period after the de-SPAC closing, usually 6 to 12 months or until a stock-price threshold is met.
Earnout
Contingent shares issued to the target company's selling shareholders (and sometimes the SPAC sponsor) that vest only if the combined company's stock price reaches specified thresholds within a defined period after the de-SPAC closing.
Sponsor Promote
The founder shares — typically 20% of the post-IPO equity — received by the SPAC sponsor for a nominal investment, representing the primary economic incentive for organizing and managing the SPAC through its business combination.
DilutionDraft
The reduction in existing shareholders' ownership percentage caused by the issuance of additional shares — in SPACs, driven by founder shares, warrant exercise, PIPE issuance, earnout vesting, and other equity instruments that expand the post-merger share count.
NAV Per ShareDraft
The net asset value per share of a SPAC, calculated as the trust account balance divided by the number of public shares outstanding — representing the floor price at which shareholders can redeem and the benchmark against which SPAC shares trade in the market.
SPAC ArbitrageDraft
An investment strategy that exploits the gap between a SPAC's market price and its per-share trust value, buying shares at or below trust and redeeming at the guaranteed NAV — generating a near-riskless return from the spread plus accrued trust interest.
OverfundingDraft
The practice of depositing more than $10.00 per public share into the SPAC trust at IPO — typically through a larger sponsor private placement — so the trust starts above par and the per-share redemption value exceeds the $10.00 IPO price from day one.
Dead SPACDraft
A SPAC that has failed to complete a business combination and has entered or completed the liquidation process, returning the trust account proceeds to public shareholders and rendering the sponsor's founder shares and at-risk capital worthless.
At-Risk CapitalDraft
The total capital invested by the SPAC sponsor that is lost entirely if the SPAC fails to complete a business combination — including the private placement purchase price, working capital loans, extension deposits, and the nominal cost of founder shares.
Share ForfeitureDraft
The voluntary cancellation of a portion of the sponsor's founder shares, typically offered to sweeten a deal for remaining shareholders when high redemptions have concentrated dilution, or as part of negotiated promote reductions with the target.
Anchor InvestorDraft
A large institutional investor that commits to a significant allocation in the SPAC IPO — often 5–15% of the offering — providing deal certainty for the underwriter and signaling quality to other investors, sometimes in exchange for favorable economic terms.
Implied ValuationDraft
The enterprise value or equity value implied by the terms of the SPAC merger agreement — calculated from the share exchange ratios, PIPE pricing, and other deal mechanics — representing the market's initial valuation of the target company via the SPAC transaction.
Trust YieldDraft
The annualized return earned by the SPAC trust account on its invested assets — primarily short-term U.S. Treasury securities — which accrues to public shareholders and increases the per-share redemption value over time.
Definitions are written for institutional and retail SPAC investors. Each term page includes real-world examples drawn from SEC filings tracked by SpacDesk. Data is sourced directly from EDGAR and updated as new filings are processed.