Polymarket launched 23 prediction markets tied to private company valuations on May 19, 2026, in an exclusive data partnership with Nasdaq Private Market (NPM). The contracts cover 12 companies — including SpaceX, OpenAI, Anthropic, Stripe, and Anduril — and allow retail traders to wager on wheth...
"Prediction markets are one of the most powerful tools we have for democratizing access to financial information." — Shayne Coplan, CEO, Polymarket
Polymarket launched 23 prediction markets tied to private company valuations on May 19, 2026, in an exclusive data partnership with Nasdaq Private Market (NPM). The contracts cover 12 companies — including SpaceX, OpenAI, Anthropic, Stripe, and Anduril — and allow retail traders to wager on whether specific valuation thresholds are reached by set dates. Winning contracts settle at $1 in USDC on Polygon; losing contracts expire worthless.
The move targets a $5 trillion pool of private-market value locked inside approximately 1,600 unicorns globally. Until now, price discovery for these companies occurred almost entirely through accredited-investor secondary transactions on venues like NPM, Forge Global, and EquityZen. Polymarket's new "Privates" category marks the first time an on-chain prediction market has used institutional secondary-market data as a resolution source, creating a parallel price signal layer accessible to anyone with a crypto wallet.
The partnership arrives as Polymarket negotiates a $400 million funding round at a $15 billion valuation, up from $9 billion in February 2026. Q1 2026 trading volume across the platform reached $26.2 billion, a 90% quarter-over-quarter increase. Monthly volume crossed $10 billion for the first time in March.
The contracts are structured as valuation ladders rather than simple binary outcomes. Each company carries multiple threshold levels, enabling traders to express granular views on valuation ranges.
Initial pricing as of May 19, 2026:
| Company | Deadline | Threshold | Implied Probability | |---------|----------|-----------|-------------------| | SpaceX | June 30, 2026 | $1.5T | 91% | | SpaceX | June 30, 2026 | $1.6T | 90% | | OpenAI | Dec 31, 2026 | $900B | 77% | | OpenAI | Dec 31, 2026 | $1T | 64% | | Anthropic | Dec 31, 2026 | $1T | 93% | | Anthropic | Dec 31, 2026 | $1.1T | 80% |
SpaceX's valuation ladder spans $1.3 trillion to $4 trillion. OpenAI's ladder spans $500 billion to $3 trillion. The full launch batch covers 12 companies: SpaceX, OpenAI, Anthropic, Stripe, Kraken, Anduril, Canva, Databricks, Epic Games, Lambda, Neuralink, and Perplexity.
Anduril's IPO-before-2027 contract carried 14–15% implied odds with $352,131 in volume. SpaceX's IPO-before-2027 contract showed 98% implied probability with $604,175 in volume, consistent with multiple reports of an imminent SpaceX public listing.
Nasdaq Private Market supplies the transaction and valuation data used to resolve each contract. Under the exclusive agreement, NPM will make this valuation data publicly available for free — without a subscription — a departure from its standard institutional-access model.
Polymarket's broader resolution infrastructure uses UMA's Optimistic Oracle, which assumes proposed outcomes are truthful unless challenged within a two-hour dispute window. Disputes require a $750 USDC bond. For the new private-company markets, NPM's data serves as the authoritative source, reducing reliance on the oracle mechanism for disputes over verifiable market data.
The contracts settle in USDC on Polygon. Polymarket recently transitioned from bridged USDC to native USDC issued directly by Circle, eliminating intermediary bridge risk and tying settlement directly to Circle's regulated reserves.
"The activity in those markets becomes a real-time signal that institutional investors can use," said Rodolfo Sanchez, VP of Data at Nasdaq Private Market.
Polymarket's volume expansion provides context for the private-company launch:
| Period | Volume | Note | |--------|--------|------| | Full Year 2025 | $21.5B | Largest prediction market by volume | | Q1 2026 | $26.2B | +90% quarter-over-quarter | | March 2026 | $10.57B | First $10B single month | | Peak Single Day (Feb 2026) | $425M | Exceeded Election Day 2024 record |
The platform's annualized run rate based on Q1 2026 data implies over $100 billion in annual notional volume. Polymarket and Kalshi together account for 85–90% of global prediction market volume, which totaled $44 billion in 2025.
Polymarket's corporate trajectory has accelerated in parallel. The Intercontinental Exchange — parent of the New York Stock Exchange — invested up to $2 billion in October 2025 at an $8 billion pre-money valuation. By February 2026, the valuation reached $9 billion. The company is now in discussions for a $400 million round at approximately $15 billion, according to Crypto Valley Journal. CEO Shayne Coplan, 27, appeared on the Bloomberg Billionaires Index in October 2025 with an estimated net worth of $1 billion.
The partnership addresses a structural information asymmetry in private markets. Nasdaq Private Market has executed nearly $80 billion in secondary liquidity across more than 1,000 company-sponsored programs, serving over 200,000 individual shareholders and investors. GP-led secondary volume reached $47 billion in H1 2025, up 68% year-over-year. LP-led volume hit $56 billion, up 40%.
The number of unique companies allowing direct secondary transfers on NPM grew from 12 issuers with settled trades in 2024 to 31 in 2025. Despite this growth, secondary pricing data remains fragmented, infrequent, and largely inaccessible to retail participants.
Polymarket's valuation ladders create a continuous, real-time pricing surface for companies that otherwise reprice only during quarterly tender offers or private fundraising rounds. The contracts do not convey equity ownership — they are event contracts denominated in USDC — but they produce implied valuations that update with every trade.
This creates a two-way data flow: NPM provides institutional-grade resolution data to Polymarket, while Polymarket generates crowd-sourced price discovery signals back to the institutional market. Whether the crowd signal proves informative or noisy remains to be seen.
The private-company contracts are listed on Polymarket's international platform, which is domiciled offshore and claims to restrict U.S. users. Polymarket also operates a smaller CFTC-regulated exchange available to U.S. customers, but the new private-company markets are not listed there.
This dual-exchange structure places the most novel products outside direct U.S. regulatory jurisdiction. The CFTC is currently finalizing its prediction markets rulemaking framework, with the public comment period closing in May 2026.
Enforcement activity has intensified. On April 23, 2026, the Southern District of New York and the CFTC brought parallel criminal and civil charges against Gannon Ken Van Dyke, an active-duty Army servicemember, for trading Polymarket contracts using classified intelligence about U.S. military operations in Venezuela. Van Dyke allegedly spent $33,000 on event contracts and realized approximately $409,000 in profits — the first insider trading case involving prediction markets. The CFTC has told Congress it is pursuing "hundreds, if not thousands" of insider trading tips using AI surveillance tools alongside Chainalysis and Nasdaq Smarts analytics.
In response, Polymarket announced a partnership with Chainalysis on April 30 to detect insider trading and suspicious activity. Kalshi has taken similar steps, imposing restrictions after its own enforcement actions involving political campaign staffers who bet on their own candidates.
For the private-company markets specifically, the insider trading risk is material. Employees, board members, investors, and advisors of the 12 listed companies possess material nonpublic information about forthcoming funding rounds, revenue figures, and strategic decisions that directly affect valuation. How Polymarket intends to monitor for this category of informed trading has not been publicly detailed.
The economic value distribution in this partnership flows through several layers:
Polymarket captures trading fees on every matched contract and gains a new vertical — private-company exposure — that no competing on-chain platform currently offers. The contracts run on Polygon, where transaction costs are near zero, keeping the marginal cost of market creation negligible.
Nasdaq Private Market gains a new distribution channel for its data, free public access to which may drive awareness of its institutional platform. It also receives resolution fees under the exclusive agreement, though terms were not disclosed.
Traders gain exposure to private-market price movements without accredited-investor requirements, minimum investment thresholds, or the illiquidity of actual secondary shares. The tradeoff: they hold event contracts with binary payoffs, not equity with upside participation.
The companies listed gain nothing directly. They did not consent to being listed, and the prediction markets could surface valuation signals that complicate fundraising or employee retention if implied probabilities diverge from internal expectations.
The absent party is the U.S. retail investor who cannot legally access the international platform. The economic value of these contracts accrues disproportionately to non-U.S. participants, or to U.S. users willing to circumvent geographic restrictions — a structural gap the CFTC rulemaking may or may not address.
The Polymarket-Nasdaq Private Market partnership is a test case for whether on-chain prediction markets can produce useful price signals for assets that trade infrequently in opaque, access-restricted venues. The $5 trillion private unicorn market has lacked continuous pricing. These contracts supply it — albeit in a synthetic, non-equity form, on an offshore platform, with unresolved questions about informed-trader surveillance.
The economic substance is real: for the first time, implied valuations for SpaceX, OpenAI, and Anthropic update in real time based on aggregated market views rather than quarterly fundraising marks. Whether that signal is captured by informed insiders or genuinely distributed retail participants will determine whether this experiment in blockchain-native price discovery produces economic value or regulatory liability.
The data will clarify which outcome prevails. The initial 23 markets are live.