Circle's USDC Dominates Stablecoin Market With 79% Share of Transaction Volume

Circle's USDC tightened its grip on the stablecoin market in the third quarter of 2026, accounting for a staggering 79% of total transaction volume as on-chain activity surged to style="font-size:1rem;color:var(--t1);line-height:1.75;margin-bottom:20px;font-weight:300;padding:14px 18px;border-left:2px solid var(--blue);background:rgba(33,136,255,.06);border-radius:0 8px 8px 0"3.9 trillion.