According to reports, MakerDAO transferred $250 million from Coinbase to the anchored stable module (PSM) of DAI to maintain anchoring, as the USDC reserve in DAI (which needs to exceed $200 million to be considered safe) approached nearly $60 million on Tuesday morning local time. PSM is a collateral pool that allows users to mint DAI by exchanging USDC at a 1:1 ratio and arbitrage back to the US dollar anchor. If the PSM reserve is depleted, the price of DAI may be higher or lower than $1. Before the Coinbase Custody transfer arrived, over $100 million left the PSM from Sunday to Tuesday. A source said that large PSM transfers seemed to flow to centralized exchanges. On the Maker forum, Allan Pedersen, CEO of DeFi lending company Monetalis, wrote that the team is working to automate PSM using smart contracts, "but for now, instruction-based automation using trustees, administrators, legal structures, and banks/centralized exchanges is secure and stable."