The volatile nature of cryptocurrency trading has once again been starkly illuminated by the significant losses incurred by a prominent trader on the Hyperliquid decentralized exchange. Within a compressed timeframe of just six days, a trader operating under the pseudonym “Machi Big Brother” experienced a substantial drawdown, erasing approximately $30 million from their previously accumulated gains. This dramatic shift underscores the inherent risks associated with leveraged trading in the digital asset space.
Machi Big Brother initially entered the Hyperliquid platform in May, demonstrating a remarkable ability to generate substantial profits. Over a four-month period, the trader successfully grew their portfolio from inception to over $42.6 million. This rapid ascent highlights both skillful execution and favorable market conditions during that initial period.
However, the market’s inherent unpredictability swiftly altered the trajectory of Machi Big Brother’s trading performance. The aforementioned six-day period saw a dramatic reversal, with total profits plummeting from a peak of $42.6 million down to $11.6 million. This substantial reduction represents a loss of roughly 70% of their peak gains in a very short interval.
At the time of analysis, Machi Big Brother maintained two significant open positions, both carrying substantial unrealized losses. A long position in Ethereum, leveraged at 15x, currently reflects over $10 million in deficits. Concurrently, a long position in PUMP, leveraged at 5x, also shows approximately $10 million in losses. These leveraged positions, while amplifying potential gains, concurrently magnify the impact of adverse price movements.
This recent trading episode is not the first instance of Machi Big Brother experiencing significant financial setbacks. In August, reports indicated that the trader had lost nearly $7 million due to liquidations stemming from the price fluctuations of Ethereum. Such recurrent large-scale losses serve as a potent reminder of the extreme volatility that characterizes the cryptocurrency markets and the critical importance of robust risk management strategies for participants.

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