Source: Kalshi's annualized revenue topped $4B in July, up from $2B+ two months earlier, and its operating expenses totaled $300M in June (Yueqi Yang/The Information)

Yueqi Yang / The Information: Source: Kalshi's annualized revenue topped $4B in July, up from $2B+ two months earlier, and its operating expenses totaled $300M in June — World Cup wagers helped double Kalshi's revenue to a more than $4 billion annualized rate in July, from a pace of over $2 billion two months earlier, a person familiar with the matter said.