<div><img width="300" height="167" src="https://readwrite.com/wp-content/uploads/2026/09/kalshi-takes-92-1-share-weekly-contract-volume-14-1b-300x167.webp" class="attachment-medium size-medium wp-post-image" alt="Abstract editorial illustration of prediction market volume surging with a red market-share wedge" style="width:100%;height:55.81%;max-width:1376px;margin-bottom: 15px;" decoding="async" fetchpriority="high" srcset="https://readwrite.com/wp-content/uploads/2026/09/kalshi-takes-92-1-share-weekly-contract-volume-14-1b-300x167.webp 300w, https://readwrite.com/wp-content/uploads/2026/09/kalshi-takes-92-1-share-weekly-contract-volume-14-1b-900x502.webp 900w, https://readwrite.com/wp-content/uploads/2026/09/kalshi-takes-92-1-share-weekly-contract-volume-14-1b-260x145.webp 260w, https://readwrite.com/wp-content/uploads/2026/09/kalshi-takes-92-1-share-weekly-contract-volume-14-1b.webp 1376w" sizes="(max-width: 300px) 100vw, 300px" /></div>
<p>Prediction market volume reached $14.1 billion as NFL trading helped Kalshi widen its lead and Polymarket Global posted gains in sports activity.</p>
<p>The post <a href="https://readwrite.com/prediction-market-volume-kalshi-lead/">Kalshi Takes 92.1% Share as Weekly Contract Volume Hits $14.1B</a> appeared first on <a href="https://readwrite.com">ReadWrite</a>.</p>