A trader made a profit of $150000 by buying the bottom of DOT on the chain at a cost of $600 According to a report by Golden Finance, on April 13th, according to on chain analyst Ai Yi's monitoring, a trader spent 0.2 ETH to buy 77000 DOTs at the bottom after the Hyperbridge attacker added 1 billion DOTs on the Ethereum mainnet and smashed the market. The trader then sold them on the OKX platform and exchanged them for $10042. Afterwards, using the same method, we gradually spent 1.1 ETH to buy DOT, found different liquidity pools to buy low and sell high, and crossed the chain to the Base network through Hyperbridge. We sold 503000 DOT coins to 68.72 ETH, earning a profit of 150000 USD at just over 400 USD, achieving a return of over 200 times.