Quick Answer
A syndicate runs on two documents: the Agreement Among Underwriters (AAU), signed by members with several-not-joint liability, and the Selected Dealers' Agreement, signed by selling-group dealers who earn only the concession and bear no risk. Commitment type sets who eats unsold shares. A contingency label triggers the prohibited-representations rule and switches the broader investor-payment rule onto its stricter escrow path. Lock-ups are typically 180-day contracts, not SEC mandates. Regulation M sets the restricted period.
The whole unit on one sheet: the syndicate documents, the commitment types, the contingency rules, lock-ups, Regulation M filings, and the price-and-concession disclosure the exam loves.
The One-Liners That Win Points
- The Agreement Among Underwriters (AAU) is signed by every syndicate member and sets liability as several, NOT joint: each underwriter is liable only for its own share.
- The Selected Dealers' Agreement is signed by selling-group dealers, who bear NO inventory risk and earn only the concession (no underwriting fee, no management fee).
- The lead manager is also a syndicate member; lead status adds fees and duties but does not exempt it from underwriting liability.
- Firm commitment: underwriter is a principal (buys the entire issue, resells at the public offering price); the underwriter bears unsold-share risk.
- Best efforts: underwriter is an agent (distributes only, never takes title); the issuer bears the risk.
- All-or-none (AON) and mini-max are contingency variants of best efforts; standby is a firm commitment on unsubscribed shares in a rights offering.
- Prohibited-representations rule: triggered specifically by an AON, part-or-none, or mini-max representation (prompt refund required if the represented amount is not sold); a genuine firm commitment is outside it entirely. Investor-payment rule: triggered more broadly by ANY non-firm-commitment distribution (promptly transmit funds to those entitled); a contingency (AON, part-or-none, mini-max) only decides whether the stricter segregated-account/escrow path applies instead.
- Lock-ups are private contracts, NOT SEC mandates; the SEC only requires that lock-up terms be disclosed in the prospectus. Typical initial-public-offering (IPO) lock-up is 180 days, but the agreement sets the actual term.
- The underwriter typically holds the right to grant an early lock-up waiver, not the issuer or the holders, but it is an agreement term, not a fixed rule; confirm against the fact pattern.
- Regulation M restricts distribution participants (underwriters, prospective underwriters, broker-dealers, selling group) and, in a parallel restriction, issuers and selling shareholders; only distribution participants get the actively-traded exception.
- The FINRA selling-agreement disclosure rule requires every AAU and Selected Dealers' Agreement to state the public offering price (POP) (or a formula) and the concession terms, in writing, between dealers (NOT to the public investor).
Numbers to Lock In
| Item | Value |
|---|---|
| Typical IPO shareholder lock-up | 180 days |
| Shareholder lock-up range | 90 to 365 days |
| Actively-traded securities exception | average daily trading volume (ADTV) $1 million or more AND public float $150 million or more (no restricted period) |
| Regulation M Tier 1 (large/liquid) | ADTV $100,000 or more AND public float $25 million or more: 1 business day before pricing |
| Regulation M Tier 2 (smaller/less liquid) | below either Tier 1 threshold: 5 business days before pricing |
| Selling-group concession example | POP $20, concession $0.40, dealer buys at $19.60 per share |
| Firm-commitment issuer-to-syndicate settlement | closing date (typically T+1 or T+2 after pricing) |
Top Gotchas
- Selling group members are NOT syndicate members. If a dealer had unsold shares revert to the lead manager, that dealer is in the selling group; it signed the Selected Dealers' Agreement, not the AAU.
- AAU liability is several, NOT joint. One underwriter's failure does not automatically put the others on the hook; "stepping up" is a contractual AAU term, not a rule of law.
- Firm commitment does NOT mean the underwriter warehouses securities pre-offering. The risk window is between pricing and closing; the shares are usually pre-sold to investors by then.
- A standby commitment is NOT best efforts. The standby underwriter has a firm obligation to take unsubscribed shares, and it backstops a rights offering, not a general public offering.
- AON is binary (fully placed or cancelled). Mini-max has a sliding success range above the minimum; a partial-success AON scenario is a trap answer.
- Plain best efforts (no contingency) uses the simpler "promptly transmit" path, not the escrow/segregation path. The contingency label (AON, part-or-none, mini-max), not the agent structure, is what triggers the segregated-account or escrow mechanic.
- The current rule text does not fix a "noon of the next business day" deadline or an "unaffiliated bank" requirement for the investor-payment rule; "promptly" is the operative, undefined standard.
- 180 days is convention, not a regulatory minimum. The lock-up cliff is the EXPIRATION date (when insiders can first sell), and a waiver is a discretionary early release, not the cliff.
- The actively-traded exception on the distributed security is a distribution-participant carve-out only, and it needs BOTH thresholds (AND, not OR). Issuers and selling shareholders are restricted on that security regardless of liquidity, subject only to a narrow reference-security exception.
- The selling-agreement disclosure is INSIDE the dealer agreements, not to the public investor; a dealer cannot rely on the prospectus to learn its own concession.
Syndicate Agreement Architecture
- AAU: master contract among syndicate members; appoints the lead manager as agent to allocate the issue, set price, sign the underwriting agreement, run stabilization, and submit FINRA notifications; addresses default and termination; liability several, not joint.
- SIFMA's standardized template is the Master Agreement Among Underwriters (MAAU).
- Selected Dealers' Agreement: signed with non-syndicate distributors; they take title only at the moment of sale and earn only the concession.
- Deal wires: electronic notifications (registration effectiveness, pricing, restricted period, penalty bid/syndicate covering, closing) threaded by a Deal ID the lead manager establishes; only specific events (restricted-period determination, pricing, cancellation/postponement, OTC penalty-bid/syndicate-covering) are actual mandatory FINRA filings.
Types of Underwriting Commitments
- Firm commitment: principal; underwriter bears all inventory risk; proceeds known at signing; used for the largest, most stable issuers.
- Best efforts: agent; issuer bears the risk; compensation lower (no inventory-risk premium).
- All-or-none (AON): 100% must sell by the deadline or the deal is cancelled and funds refunded.
- Mini-max: a minimum must clear, then the deal can scale to a maximum.
- Standby: principal backstop on a rights offering; buys unsubscribed shares.
- Competitive bid: describes selection by auction (common in municipal general obligation bonds, agency debt), typically paired with a firm-commitment purchase obligation, but confirm the actual purchase obligation rather than assuming principal status; lowest cost or highest price wins.
- Negotiated: describes selection by negotiation, typically paired with a firm-commitment purchase obligation; price and structure set through book-building; IPOs are essentially always negotiated.
Contingency Offering Mechanics
- Prohibited-representations rule: makes it deceptive to label an offering AON, part-or-none, or minimum-maximum unless a prompt refund is made if the represented amount is not sold, and the seller (usually the issuer) receives the total due by a specified date. Does NOT apply to a genuine firm commitment. The refund obligation is unconditional once the contingency fails.
- Investor-payment rule: broader trigger than the prohibited-representations rule, applies to ANY distribution other than a firm commitment. Must promptly transmit payments to those entitled to them; if payment is contingent (AON, part-or-none, mini-max), it must instead promptly deposit funds in a separate bank account as agent or trustee for investors OR transmit them to a bank that has agreed in writing to hold them in escrow.
- Funds are transmitted or returned once the contingency resolves; the current rule text does not specify an unaffiliated-bank requirement or a fixed "noon" deadline. "Promptly" is the undefined operative standard.
Lock-Up Agreements
- Issuer lock-up: no new share issuance (primary, follow-on, employee stock, registered exchange) for the period; start date, duration, and terms are set by the agreement (typically the prospectus or pricing date).
- Shareholder lock-up: officers, directors, founders, employees, venture-capital and private-equity backers, and pre-IPO holders cannot sell existing shares; typical IPO standard 180 days (range 90 to 365 days).
- Terms disclosed in the S-1 (or F-1) under "Shares Eligible for Future Sale" and "Underwriting."
- The underwriter typically holds the early-release waiver right (a negotiated agreement term, not a fixed rule); an early release of a covered new-issue lock-up generally requires public notice, subject to exceptions.
- The lock-up cliff is the expiration date; bankers manage it with staggered releases, secondary offerings timed to the cliff, or lock-up extensions.
Regulation M Filings
- Distribution-participant restriction: no bids or purchases of the covered security during the restricted period; the actively-traded exception removes the restricted period.
- Issuer and selling-shareholder restriction: same prohibition, plus their affiliated purchasers; NO actively-traded carve-out on the security being distributed (a narrow, separate exception exists for an actively-traded reference security not issued by the issuer or its affiliate).
- Three tiers by ADTV and public float: actively-traded (no restricted period), Tier 1 (1 business day), Tier 2 (5 business days); each clock begins on the LATER of the stated days before pricing or when the person becomes a distribution participant, and ends when the person completes participation (for an underwriter: fully distributed AND stabilization/trading restrictions terminated, not just settled). A merger, acquisition, or exchange-offer distribution uses a separate clock: starts when proxy/offering materials are first disseminated to security holders, ends on completion.
- FINRA notices the manager typically files: restricted-period determination (business day before the period starts), pricing (close of business the next business day after pricing), cancellation/postponement (immediately), actively-traded determination and pricing (next business day after pricing). If no manager, each participant/affiliated purchaser is responsible unless another member assumes the duty in writing. For OTC Equity Securities, the member conducting the activity (not necessarily the manager) files penalty-bid/syndicate-covering intent (before) and confirmation (within one business day after). There is no separate "stabilizing bid wire" or blanket "Trading Notification."
Disclosure of Price and Concessions
- The FINRA selling-agreement disclosure rule requires every AAU and Selected Dealers' Agreement to set forth in writing the price (or a formula to ascertain it) and to whom and under what circumstances concessions may be allowed.
- Fixed price OR formula: variable book-built deals satisfy the rule with a pricing methodology.
- This is disclosure inside the dealer agreements, distinct from prospectus disclosure (POP, underwriting discount, use of proceeds, risk factors, lock-up terms) delivered to public investors.
- The rule's "if any" wording means it does not force a concession to exist; an agreement is not deficient merely for offering no concession, as long as the who/circumstances disclosure requirement is otherwise met.
One-Breath Recap
A syndicate is held together by the Agreement Among Underwriters, signed by members with several-not-joint liability, and the Selected Dealers' Agreement, signed by selling-group dealers who bear no inventory risk and earn only the concession.
Commitment type decides who eats unsold shares: firm commitment (principal, underwriter's risk), best efforts (agent, issuer's risk), with all-or-none and mini-max as contingency variants that trigger the prohibited-representations rule and switch the investor-payment rule onto its escrow path, and standby as a firm commitment on a rights offering.
Lock-ups are private, typically 180-day contracts, not SEC mandates, with the underwriter typically holding the waiver right and the SEC only requiring prospectus disclosure.
Regulation M restricts distribution participants (with an actively-traded exception) and, in parallel, issuers and selling shareholders (no such exception), across a no-day, 1-day, or 5-day restricted period. Not every deal wire is a mandatory FINRA filing; the manager (or, absent one, each participant) documents restricted-period and pricing notices with FINRA on that filing rule's specific triggers and deadlines.
Lock in the several-not-joint liability, the firm-commitment exception on the contingency rules, and the price-and-concession disclosure that lives inside the dealer agreements, and this unit answers itself.
Need more than the recap? Read the full Underwriting Syndicate Activities unit.