SERIES 65 • INVESTMENT VEHICLE CHARACTERISTICS

Differentiate Public Offerings — Differentiate IPOs, secondary offerings, and SPAC structures.

Understand how companies access public capital markets through distinct offering mechanisms and their regulatory implications.

Historical Context & Motivation

The mechanism by which private companies transition to public ownership has evolved substantially over the past century, shaped by regulatory reform, market innovation, and investor demand for new capital-raising structures. Understanding the historical trajectory of public offerings is essential for any investment adviser representative, as these vehicles constitute a foundational element of securities markets. The earliest public offerings in the United States operated with minimal oversight, leading to rampant speculation and fraud that culminated in the market crash of 1929. In response, Congress enacted landmark legislation that still governs how securities reach public investors today. Each subsequent decade brought new structures—from traditional initial public offerings (IPOs) to secondary offerings and, more recently, Special Purpose Acquisition Companies (SPACs)—each designed to solve specific capital-market challenges.

1933
Securities Act of 1933
Congress enacted the Securities Act, requiring full disclosure through registration statements and prospectuses before securities could be offered to the public. This act established the foundation for all modern public offerings, including IPOs.
1934
Securities Exchange Act & SEC Creation
The Securities Exchange Act created the SEC to enforce federal securities laws and regulate secondary market trading, providing oversight for follow-on offerings and ongoing disclosure obligations of public companies.
1993
Modern SPAC Structure Emerges
David Nussbaum and GKN Securities introduced the blank-check company concept in a regulated format, creating the modern SPAC structure as an alternative path to public markets. Early SPACs were small and often viewed with skepticism.
2012
JOBS Act Expansion
The Jumpstart Our Business Startups Act eased regulatory burdens on emerging growth companies pursuing IPOs, allowing confidential filings and reduced disclosure requirements for companies with less than $1.07 billion in annual revenue.
2020–2021
SPAC Boom and Regulatory Response
SPACs raised over $160 billion in 2021 alone, surpassing traditional IPO volume. The SEC subsequently proposed enhanced disclosure rules and accounting guidance for SPACs, signaling a maturing regulatory framework for these vehicles.

The central question for Series 65 candidates is straightforward yet critical: how do IPOs, secondary offerings, and SPACs differ in structure, regulatory treatment, risk profile, and the flow of capital—and why does each distinction matter to an investment adviser representative advising clients on participation in these offerings?

Core Principles & Definitions

Before dissecting each offering type, it is important to grasp several foundational concepts that underpin all public offerings. Every time a company sells securities to the investing public, it must comply with federal and state securities laws designed to protect investors through mandatory disclosure. The nature of the offering—who receives the proceeds, whether shares are newly created or already outstanding, and how the company reaches public status—determines which regulatory requirements apply and what risks investors face.

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Initial Public Offering (IPO)

A company's first sale of stock to the general public. The issuer registers new shares with the SEC, and proceeds flow directly to the company (in a primary offering) or to selling shareholders (in a secondary component). Investment banks underwrite the deal, setting the offer price through bookbuilding.
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Secondary Offering

Any offering of securities after the IPO. A follow-on offering issues new shares (dilutive), while a secondary sale involves existing shareholders selling their holdings (non-dilutive). Both require SEC registration or an applicable exemption.
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SPAC (Blank-Check Company)

A shell company with no commercial operations that raises capital through its own IPO, then uses those funds to acquire a private company within a specified timeframe (typically 18–24 months). The acquisition—called a de-SPAC transaction—effectively takes the target company public.
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Primary vs. Secondary Market

In the primary market, securities are sold for the first time (IPOs and follow-on offerings). In the secondary market, previously issued securities trade between investors on exchanges. Confusingly, a 'secondary offering' occurs in the primary market because it is a new issuance from the company.
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Underwriting & Due Diligence

Investment banks serve as intermediaries, performing due diligence on the issuer, structuring the offering, marketing it to institutional investors, and often guaranteeing sale of the securities through firm commitment underwriting. The underwriting process is central to traditional IPOs but plays a different role in SPACs.
KEY TAKEAWAY
Think of public offerings like different doors into the same building—the public market. An IPO is the front entrance: formal, well-lit, and heavily scrutinized by security (regulators). A secondary offering is a side entrance for tenants already inside who want to expand their space. A SPAC is more like sending a well-funded scout into the building first, who then opens a back entrance to let a specific company walk in. Each path has different costs, timelines, and levels of investor protection.

Visual Explanation — How Capital Flows in Each Structure

This diagram illustrates the three distinct capital-flow pathways. In a traditional IPO, the private company issues new shares through an underwriter; proceeds flow to the issuer. In a secondary offering, proceeds may go to the company (follow-on) or existing shareholders (non-dilutive sale). In a SPAC, capital is raised first into a trust, a target is then identified, and a reverse merger takes the target company public.

The diagram above reveals the fundamental structural distinction among the three offering types. Notice that in the IPO column, the company itself is the issuer and direct beneficiary of the capital raised—new equity is created, and the firm's balance sheet grows. In the secondary offering column, the already-public company can raise additional capital (a follow-on offering that creates dilution) or existing shareholders such as founders, venture capitalists, or private equity sponsors can liquidate their positions (a non-dilutive sale where the company receives nothing). The SPAC column illustrates a fundamentally different sequence: capital is raised before a target is even identified, held in a trust account, and deployed only after a shareholder vote approves a specific acquisition target. This reverse-merger mechanism allows the target company to bypass the traditional IPO process entirely, though it introduces unique risks around sponsor incentives, dilution from founder shares, and regulatory scrutiny of forward-looking financial projections.

How Each Offering Works — Structural Deep Dive

IPO Mechanics

A traditional IPO follows a well-defined lifecycle. The issuing company selects one or more underwriting investment banks to manage the process. The lead underwriter performs extensive due diligence, helps prepare the S-1 registration statement filed with the SEC, and conducts a roadshow to gauge institutional investor demand. During bookbuilding, the underwriter collects indications of interest and ultimately sets the offer price. On the pricing date, shares are allocated to institutional and retail investors; the next morning, shares begin trading on a public exchange. The underwriter typically charges a gross spread of approximately 7% of the gross proceeds for deals under $1 billion, though larger offerings often negotiate lower fees.

IPO GROSS SPREAD
Underwriter Compensation = Offer Price × Shares Sold × Spread %
For example, if 10 million shares are sold at $20 per share with a 7% spread, the underwriter earns $20 × 10,000,000 × 0.07 = $14,000,000. The issuer receives the remaining $186 million in net proceeds.

Secondary Offering Mechanics

Secondary offerings come in two principal forms. A follow-on public offering (FPO) involves the company issuing additional shares after its IPO, increasing the total share count and diluting existing shareholders' ownership. Companies pursue FPOs to fund acquisitions, repay debt, or finance growth. Alternatively, a non-dilutive secondary offering involves existing shareholders—often insiders or institutional holders whose lock-up period has expired—selling their shares to the public. The company itself receives no proceeds in a non-dilutive offering. Qualified issuers with at least $75 million in public float may use a shorter Form S-3 registration statement, which incorporates ongoing SEC filings by reference, making the process faster and less expensive than an S-1.

DILUTION IMPACT
Post-Offering Ownership % = (Shares Owned) ÷ (Pre-Offering Shares + New Shares Issued) × 100
If an investor holds 100,000 shares out of 10 million outstanding (1.0% ownership) and the company issues 2 million new shares in a follow-on offering, the investor's ownership drops to 100,000 ÷ 12,000,000 = 0.833%—a 16.7% dilution of their proportional stake.

SPAC Mechanics

A SPAC—sometimes called a blank-check company—is formed by a sponsor (typically an experienced management team or private equity firm) with no commercial operations. The SPAC raises capital through its own IPO, selling units consisting of one share of common stock and a fraction of a warrant (commonly one-half or one-third of a warrant). Virtually all IPO proceeds are placed in a trust account invested in short-term Treasuries. The sponsor retains a founder share allocation—typically 20% of post-IPO shares, called the promote—purchased for nominal consideration. Within the specified acquisition window (usually 18–24 months), the SPAC must identify and complete a de-SPAC transaction. Shareholders vote on the proposed merger and may choose to redeem their shares for a pro-rata portion of the trust instead of participating. If no deal closes within the deadline, the SPAC liquidates and returns trust funds to shareholders.

SPAC TRUST VALUE PER SHARE
Trust Value Per Share = (IPO Proceeds + Trust Interest Earned) ÷ Public Shares Outstanding
If a SPAC raises $300 million and earns $4.5 million in interest over 18 months, with 30 million public shares outstanding, the trust value per share is ($300M + $4.5M) ÷ 30M = $10.15 per share. This creates a floor price for public shareholders who elect redemption.

Detailed Classification & Structural Comparison

This timeline comparison shows how the traditional IPO compresses the entire process into approximately 4–7 months, whereas the SPAC path extends over 18–24 months but separates the capital-raising event from the target selection. The key differences box below highlights how price discovery, investor protection mechanisms, and timing certainty diverge between the two approaches.
Comprehensive comparison of IPO, secondary offering, and SPAC structural features
FeatureIPOSecondary OfferingSPAC
Issuer StatusPrivate company going public for the first timeAlready-public company issuing additional shares or existing shareholders sellingShell company with no operations; target is private
SEC FilingForm S-1 registration statementForm S-1 or S-3 (shelf registration for qualified issuers)S-1 for SPAC IPO; S-4/proxy for de-SPAC merger
Price DiscoveryBookbuilding and roadshow with institutional investorsMarketed at a discount to current market price (typically 2–5%)Negotiated enterprise value between SPAC and target
Proceeds RecipientCompany (primary) and/or selling shareholders (secondary)Company (follow-on) or selling shareholdersTrust account, then used to acquire target
DilutionYes—new shares createdFollow-on: yes; non-dilutive: noSignificant—sponsor promote (≈20%) plus warrants
Lock-Up PeriodTypically 90–180 days for insidersOften occurs after lock-up expiration from IPOSponsor shares typically locked 6–12 months post-merger
Investor Redemption RightNoneNoneYes—shareholders may redeem for pro-rata trust value before merger

Worked Example — Analyzing a SPAC Transaction

Consider a hypothetical SPAC called Apex Acquisition Corp. that raises $500 million in its IPO at $10.00 per unit (each unit consists of one common share and one-half warrant). Apex's sponsor team received 12.5 million founder shares (the promote) for a nominal $25,000 investment. Apex identifies GreenTech Inc. as an acquisition target valued at $2 billion enterprise value. We will walk through the economics of this de-SPAC transaction to understand dilution, effective cost, and shareholder outcomes.

De-SPAC Transaction Analysis: Apex Acquisition Corp. × GreenTech Inc.
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Step 1 — Identify the SPAC Capital StructureApex raised $500 million at $10.00 per share, issuing 50 million public shares and 25 million public warrants (at ½ warrant per unit). The sponsor holds 12.5 million founder shares, representing 20% of post-IPO equity (12.5M ÷ 62.5M total shares). Trust holds $500 million in short-term Treasuries. After 15 months, accumulated interest adds $7.5 million to the trust.
Trust value per public share = ($500M + $7.5M) ÷ 50M = $10.15
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Step 2 — Evaluate the Target ValuationGreenTech is being acquired at a $2 billion pro-forma enterprise value. Apex will issue new shares to GreenTech's existing owners at $10.00 per share. Number of shares to GreenTech owners = $2,000M ÷ $10.00 = 200 million shares.
Total post-merger shares (before warrants) = 50M (public) + 12.5M (sponsor) + 200M (target) = 262.5 million shares
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Step 3 — Calculate Sponsor Dilution ImpactThe sponsor paid $25,000 for 12.5 million shares—an effective price of $0.002 per share versus the $10.00 paid by public investors. The sponsor's 12.5M shares represent 12.5M ÷ 262.5M = 4.76% of the post-merger entity. At a $10.00 implied share price, those shares are worth $125 million, representing a 5,000× return on the sponsor's $25,000 investment. This cost is borne by public shareholders and the target's former owners.
Sponsor promote cost = $125M, reducing effective value to public shareholders by $125M ÷ 50M public shares = $2.50 per share
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Step 4 — Assess Redemption ScenarioSuppose 30% of public shareholders (15 million shares) elect to redeem at $10.15 per share before the merger vote, withdrawing $152.25 million from the trust. Remaining trust cash = $507.5M − $152.25M = $355.25 million available for the combined entity. Remaining public shares = 35 million. Total post-merger shares = 35M + 12.5M + 200M = 247.5 million.
High redemption rates reduce available cash while leaving sponsor dilution intact, concentrating the promote cost on fewer public shares: $125M ÷ 35M = $3.57 per share
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Step 5 — Compare Effective Cost to IPO AlternativeIf GreenTech had pursued a traditional IPO with a 7% gross spread on $500 million raised, the underwriting cost would have been $35 million—or $0.175 per share on the 200 million shares issued to the target's owners. In the SPAC transaction, the combined dilution from the sponsor promote ($125M) plus warrant exercise dilution creates a significantly higher effective cost. This illustrates why SPAC sponsors argue that certainty of execution and speed justify the premium, while critics point to the hidden cost structure.
Traditional IPO cost: $35M (7% spread). SPAC promote cost: $125M. The SPAC path costs roughly 3.6× more than a traditional IPO in this scenario.

Strengths, Limitations, and Risk Factors

Comparative analysis of strengths and limitations across offering types
Offering TypeStrengthsLimitations & Risks
IPORigorous due diligence; market-based price discovery through bookbuilding; strong regulatory framework protects investors; access to deep institutional capital pools; established process with centuries of precedentLengthy and expensive process (4–7 months, $5M+ in fees); IPO window can close during market volatility; significant management time diverted; potential for underpricing ('money left on the table'); lock-up restrictions on insiders
Secondary OfferingFaster execution than IPO (especially with shelf registration S-3); provides liquidity for existing holders; established market reference price reduces uncertainty; allows companies to raise capital flexibly as needs ariseFollow-on offerings dilute existing shareholders; typically priced at a discount to market (2–5%); negative signaling risk ('why does the company need more money?'); can pressure stock price; insider selling may erode confidence
SPACFaster path to public markets for target company; more certain deal terms than traditional IPO; target can share forward projections (not permitted in IPOs); redemption rights and trust protect initial capital; attractive for companies with complex stories or limited operating historySignificant sponsor dilution (≈20% promote); warrant dilution adds to cost; potential misalignment between sponsor and public shareholder interests; high redemption rates can leave entity undercapitalized; regulatory scrutiny increasing; post-merger performance historically underperforms traditional IPOs
KEY TAKEAWAY — Adviser Perspective
From a Series 65 perspective, the critical insight is that not all public offerings carry the same risk profile. An investment adviser representative must understand that recommending participation in a SPAC investment is fundamentally different from recommending shares of a company with an established operating history pursuing a follow-on offering. The adviser has a fiduciary or quasi-fiduciary obligation to ensure the client understands the specific structure, dilution mechanics, and redemption options associated with any public offering. Think of it like prescribing medication: the same drug (capital markets access) can be administered in different forms (IPO, secondary, SPAC), each with distinct side effects the patient (investor) must understand.

Regulatory Framework & Advanced Considerations

The regulatory treatment of public offerings continues to evolve, particularly regarding SPACs. Understanding current and proposed regulations is essential for Series 65 candidates, as investment adviser representatives must stay current on the legal landscape governing the securities they recommend. The SEC has been especially active in addressing gaps in SPAC disclosure, liability, and accounting standards that emerged during the 2020–2021 SPAC boom.

Regulatory comparison: traditional offerings vs. SPACs
Regulatory AspectTraditional IPO / SecondarySPAC
Forward-Looking ProjectionsGenerally prohibited under PSLRA safe harbor limitations; companies rely on historical financial data in the prospectusHistorically permitted under PSLRA safe harbor, allowing target companies to market future revenue projections; SEC has proposed removing this safe harbor for de-SPAC transactions
Underwriter LiabilitySection 11 liability attaches to underwriters for material misstatements in the registration statement; strong incentive for rigorous due diligenceSEC has proposed treating SPAC IPO underwriters as underwriters of the de-SPAC transaction, extending Section 11 liability to the merger phase
Disclosure RequirementsFull S-1 disclosure with audited financials, risk factors, management discussion; ongoing reporting under the Exchange ActSPAC IPO S-1 has limited disclosure (no operations); de-SPAC proxy/S-4 must include target's audited financials; SEC proposes enhanced dilution and conflict-of-interest disclosures
State Blue Sky LawsCovered securities under NSMIA (National Securities Markets Improvement Act) are exempt from state registration if listed on a national exchangeSame exemption applies post-listing; however, state regulators have scrutinized SPAC promotional practices and insider conflicts
⚠️ Evolving Regulation — SEC SPAC Proposals
In March 2022, the SEC proposed rules that would significantly reshape the SPAC landscape. Key proposals include: requiring enhanced disclosure of sponsor compensation, conflicts of interest, and dilution; deeming the de-SPAC transaction a sale of securities for Securities Act purposes; eliminating the PSLRA safe harbor for forward-looking statements in de-SPAC transactions; and requiring a minimum dissemination period for disclosure documents. While not yet finalized, these proposals signal the SEC's intent to bring SPAC investor protections closer to those of traditional IPOs. Investment adviser representatives should monitor these developments closely, as final rules may materially change the risk-return calculus of SPAC investments.

Looking ahead, the convergence of regulatory frameworks for traditional IPOs and SPACs is likely to narrow the structural advantages that made SPACs attractive. Students preparing for the Series 65 should understand that the Uniform Securities Act (USA), which forms the basis for many state securities laws tested on the exam, grants state administrators broad authority to investigate and take enforcement actions against fraudulent or manipulative practices in any type of offering. The intersection of federal securities law (Securities Act of 1933, Securities Exchange Act of 1934) with state-level regulation under the USA creates a dual-layer compliance framework that applies regardless of whether a company goes public via IPO, secondary offering, or SPAC.

Practice Problems

PROBLEM 1CONCEPTUAL
A client asks you to explain the fundamental difference between an IPO and a secondary offering. In your answer, address both who receives the proceeds and the impact on the total number of shares outstanding. How does the distinction between a 'follow-on offering' and a 'non-dilutive secondary offering' add nuance to the term 'secondary offering'?
PROBLEM 2BASIC CALCULATION
A company has 20 million shares outstanding trading at $50 per share. It announces a follow-on offering of 5 million new shares at a 4% discount to market price. Calculate: (a) the offer price per new share, (b) gross proceeds raised, (c) the post-offering ownership percentage of an investor who holds 200,000 shares and does not participate in the offering.
PROBLEM 3INTERMEDIATE
A SPAC raises $400 million at $10.00 per share, issuing 40 million public shares and 20 million public warrants (each warrant exercisable at $11.50 per share). The sponsor holds 10 million founder shares. After identifying a target, 25% of public shareholders redeem their shares at $10.12 (trust value per share). Calculate: (a) the number of remaining public shares post-redemption, (b) the cash remaining in trust after redemptions, (c) the sponsor's ownership percentage of the post-merger entity if the target is valued at $1.5 billion and receives 150 million shares.
PROBLEM 4APPLIED
You are advising a client who is considering investing in either (a) a traditional IPO of a profitable SaaS company or (b) a pre-merger SPAC that has announced a deal to acquire a pre-revenue electric vehicle startup at a $3 billion valuation. The client has a moderate risk tolerance and a 5-year investment horizon. Analyze the key risk factors associated with each option and explain which regulatory protections apply differently to each. What questions should you ask the client before making a recommendation?
PROBLEM 5CRITICAL THINKING
The SEC has proposed rules that would extend underwriter liability to the de-SPAC merger phase and eliminate the PSLRA safe harbor for forward-looking statements in SPAC transactions. Analyze how these regulatory changes, if adopted, would affect: (a) the incentive structure for SPAC sponsors, (b) the willingness of investment banks to underwrite SPAC IPOs, (c) the types of companies that would still find the SPAC path attractive versus a traditional IPO, and (d) the implications for investor protection and market efficiency. Consider whether these changes could effectively eliminate the structural advantages of SPACs.

Lesson Summary

Public offerings represent the primary mechanism through which companies access equity capital markets, and each structure serves distinct strategic purposes. An initial public offering (IPO) marks a company's first sale of stock to the public through a regulated process involving underwriter-led bookbuilding, SEC registration via Form S-1, and a roadshow that establishes market-based price discovery. Secondary offerings occur after the IPO and include follow-on offerings (dilutive, with proceeds to the company) and non-dilutive sales by existing shareholders. Qualified issuers may use shelf registration (Form S-3) for faster execution.

SPACs (Special Purpose Acquisition Companies) offer an alternative path to public markets through a blank-check structure where capital is raised first, held in trust, and deployed through a de-SPAC reverse merger. Key SPAC features include the sponsor promote (≈20% founder shares), warrants that create additional dilution, shareholder redemption rights that provide downside protection, and the ability to share forward-looking financial projections (currently under regulatory review). For Series 65 purposes, investment adviser representatives must recognize that each offering structure carries distinct regulatory requirements, dilution mechanics, and risk profiles that directly affect suitability analysis and the duty to act in clients' best interests.

Varsity Tutors • Series 65 • Differentiate Public Offerings — Differentiate IPOs, secondary offerings, and SPAC structures.