Sky, BlackRock and Circle account for 53.1% of the yield-bearing stablecoin market, according to Alea Research. The sector includes 26 products with a combined market size of $21.43 billion. The three largest products are sUSDS with a 23.8% share, BUIDL with 16.7%, and USYC with 12.7%. The remaining 23 products together make up the rest of the market.