How IPO markets work
How IPO contracts work: what counts as going public for settlement purposes, what a direct listing or SPAC merger means for a contract, and what settles them.
Updated November 10, 2026 · Lumina Markets
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An IPO market typically asks whether a named private company will go public by a stated date. It pays $1 if it does and nothing if it doesn't, and on Lumina generally trades between 2¢ and 99¢ until then.
There's no published answer to the question these contracts ask. A private company's plans aren't disclosed until it files, so nothing authoritative exists to look up, which is the gap a market fills, by producing a live price that reads as a probability. What that price can't tell you is what the contract counts as going public, and "went public" covers at least three materially different transactions.
What the contract asks
Most IPO contracts take one of three shapes:
Will the company complete a qualifying event before a stated deadline? Generally the most common form.
Will it happen within a stated period: this half, this year?
Will it happen at or above a stated valuation, or on a stated exchange? Two conditions rather than one, both of which have to be met.
Each is binary: yes or no, paying $1 or nothing at resolution if held that long. A 34¢ quote is conventionally read as an implied probability of roughly 34%.
What counts as going public
The SEC's comparison of registered-offering pathways (opens in new tab) sets out three routes to becoming a public company. They are different transactions, and the settlement wording generally decides which of them a contract accepts.
Investment banks manage and sell the offering. Per the SEC's investor bulletin on IPOs (opens in new tab), underwriters gather indications of interest from prospective investors before the registration statement becomes effective and use them to recommend a price, with the issuer setting the final IPO price. The company has comparatively more control over its initial investor base as a result.
The company lists without a firm-commitment underwriter, and trading opens at a price the market sets immediately rather than after an allocation round.
The common shorthand, "a direct listing raises no money," describes the original structure, where only existing shareholders sell. That is no longer the whole picture. Both major US exchanges now permit a primary direct listing, in which the company sells shares on its own behalf: the NYSE's Primary Direct Floor Listing was approved in December 2020 (opens in new tab), and Nasdaq's equivalent, a Direct Listing with a Capital Raise under Nasdaq Listing Rule IM-5315-2, was approved in May 2021 (opens in new tab). Nasdaq's rules were then amended in December 2022 (opens in new tab) to widen the permitted pricing range and to require the issuer to retain an underwriter for the primary sales and name it in the registration statement, so on Nasdaq, "no underwriter" is now imprecise too.
A SPAC (special purpose acquisition company) is what the SEC's rulemaking describes as a blank check company: it raises money in its own IPO with no operating business, holds substantially all of the proceeds in a trust account invested in government securities, and then looks for a private company to combine with. Exchange listing standards contemplate a combination worth at least 80% of the net assets held in trust, with up to three years to complete it. When that combination closes (the step usually called the de-SPAC), the private company ends up publicly traded without ever having run an offering of its own.
A contract naming only "an initial public offering" may or may not cover the second and third routes. One naming "a listing on a US exchange" is broader on its face, but whether it reaches a de-SPAC still depends on how the terms define the qualifying event. Neither wording is more correct than the other; they're simply different contracts, and the wording rather than the company's outcome is what settles them.
Pricing, first trade, or filing
A single route still has several candidate moments, and on a tight deadline they can fall on different sides of it:
- FilingA registration filing becomes public
Well before anything trades.
- PricingThe evening before trading opens
In an underwritten deal.
- First tradeShares actually change hands
A contract with a month-end deadline and a company that prices on the 31st and opens on the 1st settles differently depending on which of those its terms name. The resolution source and the qualifying event are the two terms to read first.
Long-dated, and what follows from that
These contracts are typically among the longest-dated on the board, and a few things tend to follow from that:
- Liquidity tends to be thin and uneven. Long horizons give participants less immediate reason to do the work, so volume is often sporadic and spreads wide. A quote from a quiet stretch generally carries less information than one following a filing. See liquidity.
- Information arrives in discrete events. Filings, exchange notices and reported fundraising rounds are steps, not a continuous feed. Between them there may be genuinely nothing new.
- Deadlines pass without resolution. A "by year-end" contract on a company that hasn't filed resolves no rather than rolling forward. The deadline is the contract, not a target.
What to pay attention to
The examples below are illustrative: hypothetical situations rather than descriptions of specific contracts or companies.
| Gap | An illustration of how it arises |
|---|---|
| Route mismatch | A company lists via SPAC merger; a contract worded around an underwritten offering doesn't treat it as qualifying. |
| Direct-listing assumption | Terms assume a direct listing raises no capital and involves no underwriter, true of the original structure and not of a primary direct listing on either exchange today. |
| Pricing vs first trade | Pricing falls inside the window and the first trade falls outside it, and which one settles is a term. |
| Filing ≠ listing | A registration statement becomes public before the deadline but no shares trade until after it. |
| Conditional not met | The company lists, but below a valuation threshold the contract also required. |
| Thin-period quote | A quote from a stretch with no filings is read as consensus when little has transacted. |
Reading the qualifying-event definition alongside the deadline is what makes these visible in advance.
A quote reflects supply and demand for the contract. Lumina states no view on whether any company intends to go public, when, or on what terms, and a market price is not information about a company's plans.
Trading event contracts involves substantial risk of loss. A contract that resolves against you pays zero. Being right that a company would list is not sufficient on its own: a position can be correct on that and still resolve against you, if the qualifying-event definition differs from the one assumed.
Lumina Markets Inc. is a CFTC-registered Introducing Broker and Member NFA (NFA ID: 0576536). Trading event contracts involves substantial risk of loss and is not appropriate for all.
FAQ
How do IPO prediction markets work?
Each is typically a binary contract on whether a named private company completes a qualifying going-public event by a stated date. It pays $1 if it does and nothing if it doesn't, and settles on the event definition and source the contract names.
What counts as an IPO for a contract?
Whatever the contract says counts. The SEC treats traditional underwritten offerings, direct listings and SPAC mergers as separate pathways, so a contract naming only an "initial public offering" may not cover a direct listing or a de-SPAC. A contract naming "a listing on a US exchange" is broader, though whether it reaches a de-SPAC still depends on how its terms define the qualifying event.
Does a direct listing raise money?
Not in the original structure, where existing shareholders sell and no new capital is raised. Both major exchanges now permit a primary version in which the company sells shares itself: NYSE's Primary Direct Floor Listing was approved in December 2020, and Nasdaq's Direct Listing with a Capital Raise in May 2021. Nasdaq's rules were amended in December 2022 to widen the pricing range and require an underwriter for the primary sales, so on Nasdaq, neither "no capital raised" nor "no underwriter" is accurate today.
What happens if the deadline passes with nothing filed?
The contract resolves according to its terms, which for a by-a-date contract generally means it resolves no. The deadline is part of the contract rather than a target the market moves toward.