TOTAL VOLUME:

$134.2b

24H VOL:

$134,145,987

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,441,166,947

406,422

Markets across

30,383

events

MATCHED EVENTS:

2,688

PLATFORM COVERAGE:

5

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Anthropic lab leak by...?
polymarket

Will a lab leak occur by July 1, 2027?

Sep 18, 2026, 8:27 PM EST - Jun 30, 2027, 11:59 PM EST
Total volume:
$142,298
Volume 24h:
$36,661
1,235%
Liquidity:
$207,839
33%
Open interest:
$12,751N/A

June 30, 2027

 - Polymarket

June 30, 2027 - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolves Jul 1, 2027

Anthropic lab leak by June 30, 2027?

9%chance
Amount

$

Trade on
polymarket

Trade on Polymarket

At 9¢ buys you 1,111 shares | Odds: 9% Total Payout: $1,111 | Net Profit: $1,011 Multiplier: 11.11x | ROI: 1,011% High Projected APY: 2,343% 274 days to resolution
You will be redirected to the platform to complete this trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

June 30, 2027

Trade
9%
2%
Yes 9¢No 92¢
1¢
$91,221
$120,472
42%
49%
N/A
9mo 4d
active
polymarket

December 31, 2026

3%
Yes 3.5¢No 96.6¢
0.1¢
$116,618
$21,826
4%
29%
N/A
3mo 3d
active
Total markets: 2

Description

This market will resolve to “Yes” if a pathogen developed, modified, or handled at a wet lab operated by Anthropic is confirmed to have escaped that facility between market creation and the specified date, 11:59 PM ET. Otherwise, this market will resolve to “No.” Confirmation that the pathogen escaped the laboratory, research facility, diagnostic facility, or other controlled laboratory setting in which it was contained is required. Investigations, speculation, statements that an escape is possible or has not been ruled out, or statements unverified by a consensus of credible reporting will not suffice. The primary resolution source for this market will be a consensus of credible reporting.

Polymarket

This market will resolve to “Yes” if a pathogen developed, modified, or handled at a wet lab operated by Anthropic is confirmed to have escaped that facility between market creation and the specified date, 11:59 PM ET. Otherwise, this market will resolve to “No.” Confirmation that the pathogen escaped the laboratory, research facility, diagnostic facility, or other controlled laboratory setting in which it was contained is required. Investigations, speculation, statements that an escape is possible or has not been ruled out, or statements unverified by a consensus of credible reporting will not suffice. The primary resolution source for this market will be a consensus of credible reporting.

Frequently asked questions

On Polymarket, the dashboard for the Anthropic lab leak market tracks the current odds that a lab leak originating from Anthropic is identified as the source of a significant pandemic event before Jul 1, 2027. You’ll find a price history chart showing how the probability has changed over time, as well as the 24-hour trading volume, currently at $36,661. Total volume for this market is $142,298, indicating the level of interest and trading activity surrounding this question. The top outcome currently has a chance of 8.5%.

Currently, the prevailing sentiment in this market suggests a relatively low probability of an Anthropic lab leak causing a pandemic. This contrasts with some expert opinions, which vary widely depending on their assessment of biosecurity protocols and the potential for accidental release. While analyst forecasts are often based on qualitative assessments and modeling, this market reflects a collective, quantitative judgment made by traders willing to put capital behind their beliefs. It's important to remember that prediction markets aren't necessarily *better* than expert forecasts, but they offer a different perspective based on incentivized prediction.

On Polymarket, this market is priced through a continuous double auction, meaning traders can buy and sell shares representing their belief in the likelihood of an Anthropic lab leak. The price of a share directly corresponds to the implied probability of the event occurring. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders buy shares, the price increases, reflecting a growing belief in the outcome. Conversely, selling pressure lowers the price. This dynamic pricing mechanism ensures that the market reflects the most up-to-date collective intelligence of participants.

This market resolves around Jul 1, 2027, with the outcome determined by whether credible public reporting verifies a lab leak originating from Anthropic as the source of a significant pandemic event. The determination will be based on information from reputable sources, such as scientific publications, government investigations, and major news organizations. The focus is on establishing a clear link between a pandemic event and a confirmed lab leak at Anthropic facilities, as reported by widely trusted sources. The outcome will be verified against credible public sources.

Several events could significantly impact the price of shares in this market. A confirmed breach of biosecurity protocols at an Anthropic facility, even without a resulting pandemic, would likely cause a price increase. Conversely, positive reports on Anthropic's safety measures and independent audits could lower the price. Major developments in pandemic preparedness and the emergence of new, naturally occurring pathogens could also influence trader sentiment. Any official investigation into lab safety practices, or public statements from key figures in the field, are likely to move this market.