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Person

Shayne Coplan

Founder and CEO of Polymarket, a prediction market platform where users bet on real-world event outcomes.

Known aliases

  • Coplan
  • Shaney Coplan

Current stories

investOne report1 publisher

Polymarket recruits Goldman's former ETF-accelerator head to bring Wall Street desks onto its US exchange

Polymarket, valued at about $21 billion, hired ex-Goldman partner Lisa Mantil to bring big traders onto its US exchange. She starts selling while federal investigators, House members and New York officials still dispute how its contracts should be policed.

Reality

Evidence35
Adoption20
Hype gap+35
Incentives60
Confidence40
investConfirmed4 publishers

Polymarket's $6bn markup is six times the cash the round brings in

Polymarket has hired Warren Jenson, formerly finance chief at Amazon, Delta Air Lines and Nielsen, to set capital strategy for a business now marked at about $21bn with no revenue figure attached to it.

Perspective Coverage

4 publishers
Builder
Builder 8%
Operator
Operator 41%
Investor
Investor 51%

Reality

Evidence62
Adoption55
Hype gap+35
Incentives65
Confidence60
investConfirmed5 publishers

Polymarket's February deposit rejections ran at eighty times the industry rate

The Wall Street Journal reported that Checkout.com blocked most Polymarket US card deposits at February's peak, and the controls that pulled fraud back to normal by May were a cap on cards per account and an outside vendor.

Perspective Coverage

5 publishers
Builder
Builder 19%
Operator
Operator 48%
Investor
Investor 33%

Reality

Evidence55
Adoption
Not scored
Hype gap+30
Incentives60
Confidence55
productOne report1 publisher

Polymarket's signup flow treated a stolen SSN as a password

According to the Wall Street Journal, nearly 500 Polymarket US accounts were entered by people who typed in someone else's Social Security number. The flow's duplicate-identity check opened the account it matched instead of blocking the attempt.

Publishers:gizmodo.com

Reality

Evidence55
Adoption72
Hype gap−15
Incentives70
Confidence55
productOne report1 publisher

Kalshi says three out of four of its users don't trade

A Kalshi spokesperson gave WIRED that figure while arguing the informational use of its odds is the popular one. Both exchanges are now licensing those odds to large media companies with the legal fight over what they are unresolved.

Publishers:wired.com

Reality

Evidence42
Adoption58
Hype gap+33
Incentives80
Confidence52
productOne report1 publisher

Polymarket mails a daily news roundup that links each story to a market on it

Polymarket's daily dispatch summarises the day's news and links out to its own yes/no markets, part of a broader push by prediction markets into publishing. Kalshi says three out of four of its users never trade.

Publishers:wired.com

Reality

Evidence57
Adoption46
Hype gap+26
Incentives78
Confidence61
investOne report1 publisher

Polymarket puts a former Amazon CFO in charge of capital strategy for its $112m US exchange

Warren Jenson, who has been finance chief at Amazon, Delta Air Lines and Electronic Arts, takes over capital strategy at a company that has published no audited numbers and paid $112m for its way back into the United States.

Publishers:crypto.news

Reality

Evidence55
Adoption30
Hype gap+20
Incentives62
Confidence58