The Guardian: Polymarket, the online prediction platform that hosts bets on events such as the Iran war, is in talks to raise $400m (£296m) at a valuation of up to $15bn.
The company has gained notoriety in recent months over wagers placed on the Middle East conflict, including on the timing of US-Israel strikes against Iran, and on a US-Iran ceasefire, some of which appeared to bear signs of insider trading…