The ECM Product Set: A Map of What Bankers Sell

Introduction

Before the rest of this guide goes deep on individual ECM products, it helps to see the whole map at once. Equity capital markets is not a single product; it is a portfolio of related instruments, each tuned to a specific issuer situation and a specific piece of the public-equity ecosystem. This article gives a brief, navigational overview of the four product families an ECM banker covers, so that the deep dives in later sections sit on a clear mental scaffold.

Almost every ECM transaction belongs to one of four families: common stock offerings, equity-linked products, private formats, and IPO alternatives. The boundaries between families are real (each has different documentation, different investor base, different execution mechanics) but the underlying logic is consistent: the issuer needs equity capital, equity-related capital, or a path to public equity, and the banker recommends the format that matches the situation.

Common Stock Offerings

Common stock offerings are the vanilla equity products. The IPO is the first sale of stock to the public; everything else in this family is post-IPO. Marketed follow-on offerings raise additional equity from a public issuer through a compressed two- to four-day marketing process. Overnight bought deals trade certainty for a wider discount, with the bank pricing the offering at a fixed level after market close. ATM programs sell stock continuously through a sales agent at prevailing prices. Block trades execute large insider or sponsor positions overnight using the bank's risk capital. Accelerated share repurchases (ASRs) are the buyback equivalent: the issuer purchases its own stock through a structured forward contract with the bank.

Equity-Linked Products

Equity-linked combines equity with option mechanics. The vanilla convertible bond is a debt instrument convertible into stock at a premium to the current price. Mandatory convertibles and convertible preferred stock convert automatically at maturity and are treated more like equity for credit purposes. Exchangeables are converts where the underlying stock is a different company that the issuer owns. Capped calls and call spread overlays are companion derivative structures that issuers use to push out the effective conversion premium and reduce dilution. The full equity-linked toolkit is the equity-linked desk's core product set.

Private Formats

Private formats sell equity outside the public offering process. PIPE transactions place common stock, convertible preferred, or other equity-linked securities to a small group of accredited investors in a public company. Registered directs are a public-company variant where the securities are registered for sale but placed with pre-identified investors rather than marketed broadly. Rule 144A convertibles are private convertible offerings to qualified institutional buyers, which represent the bulk of US convertible issuance because they execute faster than registered deals. Pre-IPO crossover rounds bring late-stage growth investors into the cap table at a stepped-up valuation before the IPO.

IPO Alternatives

When a traditional IPO is not the right fit, several alternatives exist. SPACs raise blank-check capital first and merge with a private target through a de-SPAC transaction. Direct listings skip the underwriter altogether and trade existing shares without raising new capital. Reverse mergers take a private company public by merging with a publicly-listed shell. Dual-track processes run an IPO and an M&A sale in parallel to maximize sponsor exit optionality. Each alternative trades off different combinations of speed, cost, capital raised, and certainty.

Selecting the right instrument is the practical art of ECM advisory. The decision depends on the issuer's capital need, the time available, the bank's willingness to commit risk capital, the discount the market will demand, and the signal each product sends to existing shareholders. A high-quality issuer with a clean stock and time on the calendar might prefer a marketed follow-on for tighter pricing; an issuer with a binary catalyst might prefer an overnight bought deal for execution certainty; a serial issuer might layer in an ATM program to harvest equity over time.

Shelf Registration

An SEC registration statement (Form S-3 for seasoned US issuers) that allows a public company to register a large amount of securities upfront and "take down" portions of the registration over time through follow-on offerings, ATM programs, block trades, or convertibles. Shelf registrations are the foundation of fast-execution post-IPO ECM products: an issuer with an effective shelf can launch a deal within hours rather than the weeks required to register the offering from scratch.

The four product families above are the structural map of the rest of this guide. Section 2 deep-dives the IPO process. Section 3 covers the IPO alternatives. Section 4 walks through follow-ons and the post-IPO toolkit. Section 5 covers convertibles and the equity-linked desk. Each subsequent article pulls from this map and goes deeper on the specific product it covers.