Direct listings and SPACs: the mechanics

The question behind the question

Direct listings and SPAC mergers both get a private company to public markets without running the traditional IPO process described in the IPO process, end to end, and interviewers ask about them to check whether you understand the mechanical differences, not to hear an opinion about whether either structure is currently in fashion. Both are legitimate, structurally distinct paths that solve for different things a company might want, and a candidate who can explain the actual mechanics tends to stand out from one who only knows the two exist as alternatives to a traditional IPO.

What a direct listing actually is

In a direct listing, a company's existing shares begin trading on a stock exchange without the company (or its underwriters) selling any new shares to the public in a marketed, underwritten offering. There is no firm commitment underwriting, meaning no bank buys the shares from the company and resells them to investors the way it would in a traditional IPO; instead, existing shareholders, employees, early investors, founders, simply become free to sell their shares directly into the public market once the listing goes effective, subject to whatever lockup arrangements are in place.

Because there is no new offering being marketed, a direct listing does not run a traditional roadshow either, though the company may still hold investor presentations to build awareness ahead of the listing. Price discovery happens differently too: rather than a deal team setting an offer price the night before trading begins, the opening trade in a direct listing is set through a special opening auction process run by the exchange, matching buy and sell orders directly to determine an opening price, informed by a reference price the exchange publishes ahead of time based on recent private-market transactions and guidance from the company's financial advisors. Some direct listing structures also allow the company to sell newly issued primary shares alongside the existing shares becoming tradable, letting the company raise capital through the same mechanism rather than requiring a purely secondary sale of existing shares.

Why a company might choose a direct listing over a traditional IPO

The mechanical differences map to specific reasons a company might prefer this path. Without underwriters buying and reselling shares, there is no traditional underwriting discount taken out of the proceeds the way there would be in an IPO, though the company still pays advisory and listing fees. A direct listing also avoids the lockup structure being applied uniformly the way an IPO's typically is, since there was never a fixed group of underwriters allocating shares to a specific set of investors in the first place, which can matter to a company whose existing shareholder base wants more immediate liquidity. It tends to suit a company that is already well known to public-market investors, has ample existing capital, and primarily wants to give existing holders liquidity rather than raise a large amount of new primary capital, since a direct listing with no primary component raises no new money for the company at all.

The tradeoff is real, though: without a roadshow building a book of committed demand ahead of time and without underwriters providing aftermarket stabilization tools like a greenshoe, a direct listing's opening trade and early aftermarket performance can be more volatile than a traditional IPO's, since price discovery happens live, in public, through the opening auction rather than through a privately built book the night before.

Who plays the underwriter's role in a direct listing

Even without a firm commitment underwriting, a company pursuing a direct listing still engages financial advisors, typically the same banks that would otherwise lead an IPO, to guide the process. These advisors help the company navigate the listing requirements, help the exchange set the reference price used to inform the opening auction, and often facilitate investor education sessions in place of a traditional roadshow, even though they are not contractually buying and reselling shares the way an IPO's syndicate does. This is a meaningfully different role than the one described in how the syndicate desk works, since there is no order book of committed, priced demand being built in the same way, only guidance and an informed reference point going into a live, public opening auction.

What a SPAC is, how the merger mechanic works, and sponsor economics

A special purpose acquisition company, or SPAC, is a shell company with no operating business that itself completes a traditional IPO, raising cash from public investors that it holds in a trust account, with the explicit purpose of using that cash to acquire a private operating company within a set time limit, commonly a couple of years. The SPAC's IPO investors are effectively betting on the SPAC's sponsors, the team that formed the shell company, to find and negotiate a good acquisition, since at the time of the SPAC's own IPO there is no target company identified yet.

Once the SPAC's sponsors identify a private company to acquire, the two sides negotiate a merger, commonly called a de-SPAC transaction, in which the private target effectively becomes public by merging into the already-listed shell company, rather than filing its own IPO registration statement and running its own roadshow. This merger is typically negotiated more like an M&A transaction, price and terms agreed directly between the SPAC and the target, than like a marketed securities offering, though extensive disclosure is still required and shareholders of the SPAC vote on whether to approve the merger. SPAC mergers are also frequently accompanied by a separate PIPE (private investment in public equity) financing, additional capital raised from institutional investors at the same time as the merger closes, often needed because SPAC investors have the right to redeem their shares for cash instead of remaining invested through the merger, which can leave the deal short of the capital the target was expecting unless a PIPE fills the gap.

A structural feature of the standard SPAC worth knowing precisely: sponsors typically receive founder shares, commonly structured as roughly 20% of the SPAC's post-IPO share count, in exchange for a nominal payment, as compensation for forming the shell company and doing the work of finding and negotiating a merger. This "promote," combined with warrants often given to the SPAC's original IPO investors as an added sweetener for tying up capital in a blind pool with no identified target, means the economics of a completed de-SPAC merger are split among several groups, the sponsor, the original SPAC investors, the target company's existing shareholders, and any PIPE investors brought in at the time of the merger, each with different entry points and different incentives. Understanding that a SPAC's sponsor economics are built into the structure regardless of which specific target eventually gets acquired is a useful, mechanics-only fact that comes up whenever an interviewer asks why SPAC merger negotiations can be more complex than they first appear.

Structural comparison

What each structure does not solve

It is worth being precise about the limits of each path, since interviewers sometimes ask a candidate to identify why a company would not choose the alternative structure. A direct listing does not help a company that needs to raise a large amount of new primary capital with certainty, since without underwriters committing to buy shares, there is real execution uncertainty around a large capital raise structured this way, which is why direct listings have historically suited companies with less urgent capital needs. A SPAC merger does not give a target the same kind of extended due diligence and marketing period a traditional IPO roadshow provides, and the redemption feature built into SPAC structures means the actual capital available at closing can be less certain and less predictable than a traditional underwritten deal, a mechanical feature of the structure rather than a comment on any particular deal's outcome. Neither structure replaces the book-built, demand-tested price discovery described in how an IPO actually gets valued and priced; a direct listing substitutes a live public auction for that process, and a SPAC merger substitutes a negotiated exchange ratio, which is exactly why interviewers expect you to name the tradeoff rather than treat either path as a strictly easier substitute for a traditional IPO.

Practice question

How does a direct listing differ mechanically from a traditional IPO?

The core difference is that a direct listing has no underwritten offering of new shares. In a traditional IPO, underwriters sign a firm commitment agreement to buy the company's shares and resell them to investors, built through a roadshow and a bookbuilding process that sets a price the evening before trading starts. In a direct listing, existing shares simply become tradable on the exchange, with no bank buying and reselling anything, and the opening price gets discovered live through a special opening auction on the first trading day rather than being set in advance. That means there's typically no formal multi-day roadshow building a committed order book ahead of time, and no greenshoe or other underwriter-provided stabilization tool available once trading starts, since there were never underwriters positioned to provide it. A direct listing tends to suit a company that's already well capitalized and mainly wants to give existing shareholders liquidity rather than raise a large amount of new money, since a direct listing without a primary component raises no new capital for the company at all. The tradeoff is that price discovery happening live, in public, can make the opening trade and early days of trading more volatile than a traditional IPO's more controlled process.

What the interviewer is listening for: Whether you understand the absence of firm commitment underwriting as the mechanical root of every other difference, rather than describing a direct listing as simply "an IPO without a roadshow." Precision on the opening auction mechanism signals real familiarity with the structure.