Tether and Circle have collectively minted $1.5 billion in stablecoins over the past 10 hours. Tether issued $1 billion in USDT on the Tron network, while Circle minted $500 million in USDC on the Solana blockchain. Since the market crash on October 11, the two companies have minted a combined total of $20.5 billion in USDT and USDC.