Key Takeaways

  • IPO (Initial Public Offering) is a company's first sale of stock to the public.
  • Registration statement (S-1) must be filed with the SEC before going public.
  • The cooling-off period (20+ days) is the SEC review period before effectiveness.
  • Firm commitment: Underwriter BUYS all shares and bears the risk of unsold shares.
  • Best efforts: Underwriter only acts as agent; ISSUER bears the risk.
  • All-or-none: Must sell ALL shares or the entire offering is cancelled.
  • SPACs are 'blank check companies' that raise money to acquire private companies.
  • Rule 144 governs the resale of restricted and control securities.
Last updated: December 2025

Public Offerings and IPOs

When companies want to raise capital by selling securities to the public, they conduct public offerings. Understanding the process and participants is essential for the Series 66 exam.

Types of Offerings

TypeDescriptionExample
IPO (Initial Public Offering)First time company sells stock to publicPrivate company going public
Secondary OfferingCurrent shareholders selling their sharesFounder selling stake
Follow-On OfferingCompany issues additional sharesDilutes existing shareholders
Shelf RegistrationPre-registered shares sold over timeSEC Rule 415

Primary vs. Secondary Offerings

FeaturePrimary OfferingSecondary Offering
SellerThe companyExisting shareholders
ProceedsGo to companyGo to selling shareholders
DilutionDilutes existing sharesNo dilution
PurposeRaise capitalProvide liquidity

The IPO Process

Step-by-Step Process

StepActionKey Details
1. Select UnderwriterHire investment bankUsually competitive process
2. Due DiligenceVerify all informationLegal, financial, business review
3. File RegistrationSubmit S-1 to SECProspectus included
4. SEC ReviewCooling-off periodMinimum 20 days
5. RoadshowMarket to investorsBuild book of demand
6. Price SettingFinal offer priceNight before trading
7. Trading BeginsStock goes liveListed on exchange

Registration Statement (S-1)

The registration statement contains:

  • Prospectus (Part I): Distributed to investors

    • Business description
    • Risk factors
    • Financial statements
    • Use of proceeds
    • Management information
  • Part II: Additional information for SEC

    • Expenses
    • Exhibits
    • Undertakings

The Cooling-Off Period

The cooling-off period is the minimum 20-day SEC review period after filing the registration statement.

What CAN Be DoneWhat CANNOT Be Done
Distribute preliminary prospectus (red herring)SELL securities
Take indications of interestAccept money
Conduct roadshowsMake binding commitments
Prepare sales materialsGuarantee allocations

Exam Tip: During the cooling-off period, the underwriter can take "indications of interest" but cannot make SALES or accept MONEY.

Underwriting Methods

Firm Commitment Underwriting

In a firm commitment, the underwriter purchases ALL shares from the issuer at a discounted price and resells them to the public.

FeatureDetails
Risk BearerUnderwriter
CommitmentBuys all shares
SpreadDifference between purchase and sale price
Best ForHigh-quality, established companies
GuaranteeIssuer guaranteed to receive proceeds

Example: Company issues 1 million shares at $20. Underwriter buys all at $19 (5% discount), resells to public at $20, earning $1 million spread.

Best Efforts Underwriting

In a best efforts arrangement, the underwriter acts as an agent and makes no guarantee of sale.

FeatureDetails
Risk BearerIssuer
CommitmentSells what it can
RoleAgent, not principal
Best ForSmaller, riskier companies
GuaranteeNone - unsold shares not purchased

All-or-None Offerings

A type of best efforts where 100% of the shares must be sold or the entire offering is cancelled.

FeatureDetails
ConditionAll shares must be sold
If Not MetOffering cancelled, money returned
ProceedsHeld in escrow until completion
RuleSEC Rule 10b-9 governs

Underwriting Comparison Summary

MethodRisk BearerGuaranteeProceeds
Firm CommitmentUnderwriterYes, all sharesImmediate
Best EffortsIssuerNo guaranteeOnly what sells
All-or-NoneIssuerMust sell allAll or nothing
Mini-MaxIssuerMinimum thresholdMinimum or nothing

Exam Tip: In FIRM commitment, the underwriter takes the risk. In BEST EFFORTS, the issuer takes the risk. Remember: Firm = underwriter Firmly commits.

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Types of Securities Underwriting

SPACs (Special Purpose Acquisition Companies)

SPACs are "blank check companies" that raise capital through an IPO with the sole purpose of acquiring a private company.

SPAC Structure

PhaseWhat Happens
FormationSponsors create shell company
IPOSPAC goes public, raises funds
Search18-24 months to find target
AnnouncementDe-SPAC merger announced
VoteShareholders approve merger
MergerTarget becomes public company

Key SPAC Features

FeatureDetails
Trust AccountIPO proceeds held in trust
Redemption RightsInvestors can redeem at ~$10/share
WarrantsOften included with units
Time LimitTypically 18-24 months
If No DealMoney returned to investors

SPAC Risks

RiskDescription
No target knownInvesting blind
Sponsor dilutionSponsors get 20% "promote"
RedemptionsMay reduce deal proceeds
Quality concernsMay acquire weaker companies

Restricted and Control Securities

Restricted Stock

Restricted stock is acquired in unregistered, private sales (e.g., private placements, employee compensation).

SourceExample
Private PlacementRegulation D offerings
CompensationEmployee stock grants
Merger ConsiderationStock received in M&A

Control Stock

Control stock is owned by affiliates (insiders) of the company - officers, directors, or 10%+ shareholders.

Rule 144: Safe Harbor for Resale

Rule 144 provides a safe harbor for selling restricted and control securities.

RequirementRestricted StockControl Stock
Holding Period6 months (reporting) / 1 year (non-reporting)None
Current InformationRequiredRequired
Volume LimitRequiredRequired
Manner of SaleRequiredRequired
Form 144Required if >5,000 shares or $50,000Required if >5,000 shares or $50,000

Rule 144 Volume Limits

CalculationFormula
Greater of:1% of outstanding shares OR
Average weekly trading volume (4 weeks)
Time PeriodRolling 90-day period

Exam Tip: Rule 144 has a 6-month holding period for RESTRICTED stock of REPORTING companies. Control securities have no holding period but are subject to volume limits.

Test Your Knowledge

In a firm commitment underwriting, who bears the risk if all shares are not sold?

A
B
C
D
Test Your Knowledge

During the cooling-off period, an underwriter may:

A
B
C
D
Test Your Knowledge

A SPAC (Special Purpose Acquisition Company) is best described as:

A
B
C
D
Test Your Knowledge

Under Rule 144, the holding period for restricted securities of a reporting company is:

A
B
C
D