---
title: "World Cup boom sends Polymarket volume up 300% while Kalshi sets open interest records"
url: https://thecoingazette.com/world-cup-boom-sends-polymarket-volume-up-300-while-kalshi-sets-open-interest-records/
date: 2026-06-24
modified: 2026-06-24
author: "Coin Gazette Editorial"
description: "Kalshi's aggregated OI reached a record $1.16 billion last week, the first time the platform's OI surpassed the trillion-dollar mark."
categories:
  - "Crypto News"
tags:
  - "Kalshi"
  - "Markets"
  - "OI"
  - "Open interest"
  - "polymarket"
  - "The Block"
  - "World Cup"
word_count: 20
---

# World Cup boom sends Polymarket volume up 300% while Kalshi sets open interest records

Kalshi's aggregated OI reached a record $1.16 billion last week, the first time the platform's OI surpassed the trillion-dollar mark.