The Prediction Markets

2nd largest private company end of October?

Closes
Nov 1, 2026, in 8 days
Traded
$4K
Venues
Polymarket
Prices updated
1 min ago
Share

What the markets expect

OpenAI 88.2%

Next is Databricks at 2.2%. Only Polymarket lists this market, so there is no second price to compare.

OpenAI 88.2%Databricks 2.2%Anduril 2%Canva 2%Anthropic 1.8%5 others 3.8%

Odds by venue

Fair chance strips out each venue’s built-in margin (its prices add up to more than 100%), then blends the venues by how much has traded there, so the outcomes add up to 100%. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.

Prices come from our regular polls of each venue, the oldest 1 min ago. Ages are as of when this page was built.

  • Polymarket
OpenAI
88.2%
Polymarket 96.8%(88.2% fair)polled, 1 min agoBest Yes 98.5¢ on Polymarket, $100 pays $102 (1.02x)
Polymarket
Contract
OpenAI
Last price
96.8%
Fair, margin removed
88.2%
As of
Polled 1 min ago
Buy Yes
98.5¢
Sell Yes
95¢
$100 on Yes pays
$102 (1.02x)
Volume
$2K
Trade this on Polymarket
Databricks
2.2%
Polymarket 2.5%polled, 1 min agoBest Yes 4.5¢ on Polymarket, $100 pays $2,222 (22.2x)
Polymarket
Contract
Databricks
Last price
2.5%
As of
Polled 1 min ago
Buy Yes
4.5¢
Sell Yes
0.4¢
$100 on Yes pays
$2,222 (22.2x)
Volume
$331
Trade this on Polymarket
Anduril
2%
Polymarket 2.2%polled, 1 min agoBest Yes 4.2¢ on Polymarket, $100 pays $2,381 (23.8x)
Polymarket
Contract
Anduril
Last price
2.2%
As of
Polled 1 min ago
Buy Yes
4.2¢
Sell Yes
0.2¢
$100 on Yes pays
$2,381 (23.8x)
Volume
$207
Trade this on Polymarket
Canva
2%
Polymarket 2.2%polled, 1 min agoBest Yes 4.1¢ on Polymarket, $100 pays $2,439 (24.4x)
Polymarket
Contract
Canva
Last price
2.2%
As of
Polled 1 min ago
Buy Yes
4.1¢
Sell Yes
0.2¢
$100 on Yes pays
$2,439 (24.4x)
Volume
$201
Trade this on Polymarket
Anthropic
1.8%
Polymarket 2%polled, 1 min agoBest Yes 3.9¢ on Polymarket, $100 pays $2,564 (25.6x)
Polymarket
Contract
Anthropic
Last price
2%
As of
Polled 1 min ago
Buy Yes
3.9¢
Sell Yes
0.1¢
$100 on Yes pays
$2,564 (25.6x)
Volume
$169
Trade this on Polymarket
ByteDance
1.8%
Polymarket 2%polled, 1 min agoBest Yes 3.8¢ on Polymarket, $100 pays $2,632 (26.3x)
Polymarket
Contract
ByteDance
Last price
2%
As of
Polled 1 min ago
Buy Yes
3.8¢
Sell Yes
0.2¢
$100 on Yes pays
$2,632 (26.3x)
Volume
$164
Trade this on Polymarket
Perplexity
1.5%
Polymarket 1.7%polled, 1 min agoBest Yes 3.1¢ on Polymarket, $100 pays $3,226 (32.3x)
Polymarket
Contract
Perplexity
Last price
1.7%
As of
Polled 1 min ago
Buy Yes
3.1¢
Sell Yes
0.2¢
$100 on Yes pays
$3,226 (32.3x)
Volume
$176
Trade this on Polymarket
Neuralink
0.2%
Polymarket 0.2%polled, 1 min agoBest Yes 0.2¢ on Polymarket, $100 pays $50,000 (500x)
Polymarket
Contract
Neuralink
Last price
0.2%
As of
Polled 1 min ago
Buy Yes
0.2¢
Sell Yes
0.1¢
$100 on Yes pays
$50,000 (500x)
Volume
$169
Trade this on Polymarket
Revolut
0.2%
Polymarket 0.2%polled, 1 min agoBest Yes 0.2¢ on Polymarket, $100 pays $50,000 (500x)
Polymarket
Contract
Revolut
Last price
0.2%
As of
Polled 1 min ago
Buy Yes
0.2¢
Sell Yes
0.1¢
$100 on Yes pays
$50,000 (500x)
Volume
$169
Trade this on Polymarket
Stripe
0.1%
Polymarket 0.2%polled, 1 min agoBest Yes 0.2¢ on Polymarket, $100 pays $50,000 (500x)
Polymarket
Contract
Stripe
Last price
0.2%
As of
Polled 1 min ago
Buy Yes
0.2¢
Sell Yes
0.1¢
$100 on Yes pays
$50,000 (500x)
Volume
$169
Trade this on Polymarket

Who resolves this market

Polymarket
Polymarket resolves via:
UMA optimistic oracle

How the odds have moved

The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.

  • OpenAI
  • Databricks
  • Anduril

Order books

Each venue’s resting orders for the selected outcome’s Yes contract, side by side. Top of book streams live; depth refreshes every 15 seconds.

Top of book

Connecting
Best bid
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Spread
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Best ask
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Waiting for the first live quote…

Depth · top 8 levels

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Recent trades

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What your stake buys

Enter a stake to see where it buys the most after fees, using each venue’s live order book.

$
Buy

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Buys at the asks resting now (taker orders), cheapest after fees first, from order-book snapshots up to 15 seconds old. Fees: Kalshi 0.07 × price × (1 − price) per share, rounded up to the cent; Polymarket 0.05 × price × (1 − price) per share (other / general rate). Fee calculator. Estimates only, not advice.

About this market

Live prediction market odds for "2nd largest private company end of October?". OpenAI leads at 88.2%. Next is Databricks at 2.2%. $4K has traded across 10 outcomes on Polymarket. The market is expected to resolve by Nov 1, 2026.

This market will resolve to the listed company with the second largest private market valuation on the last trading day of October 2026. NPM Prices are published for trading days only and are updated once daily at 1:00 PM ET on the following calendar day. If NPM has not published relevant data for all business dates in the specified period by 1:00 PM ET on the calendar date following the specified date, this market may remain open until 11:59 PM ET on the third business day following the specified date. If no further data is released by that time, the market will resolve according to the data available. If NPM ceases publishing relevant data prior to the specified date, this market will resolve based on the NPM data published prior to the cessation of coverage, as well as applicable public market capitalization data following an IPO or direct listing. If a company completes an IPO or direct listing before the specified date, this market will resolve based on its final NPM valuation published between market creation and the IPO or direct listing date, as this market is based on private market valuations only. If a listed company merges with or acquires another entity and remains the parent company, no change to resolution methodology applies. If a listed company is acquired, merges into another entity and is no longer the surviving parent company, or otherwise ceases to exist as an independent entity prior to the end of the period, only the NPM valuation achieved prior to completion of the transaction will be considered for resolution. No transaction, acquisition, or merger consideration will be considered for resolution. If two or more companies are tied for the second highest valuation, the market will resolve in favor of the company whose listed name comes first alphabetically. Revisions to previously published NPM data made after their initial release will not be considered, unless made to correct clearly erroneous data. The resolution sources for this market are: https://fe.secondmarket.com/companies/data?start_date=2025-12-31&view=valuation&companies=company-c62b8140-fdeb-428d-a9a6-d04eb3b24b49 https://fe.secondmarket.com/companies/data?start_date=2025-12-31&view=valuation&companies=company-3e197763-4ff8-4d8c-bd1f-cc2792937757 https://fe.secondmarket.com/companies/data?start_date=2025-12-31&view=valuation&companies=company-f364d2ab-34b7-48c9-a2b7-af62da804953 https://fe.secondmarket.com/companies/data?start_date=2025-12-31&view=valuation&companies=company-5e0e75a3-96d6-4893-8f23-9d9bac0ec1db https://fe.secondmarket.com/companies/data?start_date=2025-12-31&view=valuation&companies=company-53787f17-a704-47a9-895a-cb54833bdb1f https://fe.secondmarket.com/companies/data?start_date=2025-12-31&view=valuation&companies=company-782c0a32-4727-4097-a40b-9a2602f243e7 https://fe.secondmarket.com/companies/data?start_date=2025-12-31&view=valuation&companies=company-30839e0b-2730-4495-839f-1bf638fa9cca https://fe.secondmarket.com/companies/data?start_date=2025-12-31&view=valuation&companies=company-802a7f97-3625-4614-a13d-d999cf139330 https://fe.secondmarket.com/companies/data?start_date=2025-12-31&view=valuation&companies=company-70f3c3d1-565b-491a-83df-54d0c8b08186 https://fe.secondmarket.com/companies/data?start_date=2025-12-31&view=valuation&companies=company-6edded11-6786-4392-9695-3cce6fda0de0

Questions

What does the consensus price mean?

It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.

How is the payout worked out?

A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.

Why do the venues show different prices?

Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.

Is a price gap an arbitrage?

Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.

How fresh are these prices?

Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.

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