Justin Sun has deposited a total of $174 million in assets into the Spark platform, significantly impacting its USDC pool. According to on-chain analyst Aunt Ai, Sun's deposits include 105 million USDC added recently and 53,665 ETH previously deposited. This contribution accounts for approximately 22.5% of Spark's USDC pool, which currently has a total value locked (TVL) of $467 million.