The supply of Tether’s USDT and Circle’s USDC – the two largest stablecoins – expanded by nearly $10 billion combined over the past 30 days, 10x Research pointed out. Meanwhile, the supply of MakerDAO’s DAI and Hong Kong-based First Digital’s FDUSD, the third and fourth largest stablecoins, also expanded by 5%-10% in this period, CoinGecko data shows.