"article":"July delivered a sector-wide drawdown to China's quantitative hedge funds. Headline version: momentum strategies bled out across the board. Subtext version: DMA products — the leveraged equity-swap vehicles that powered the industry's 2023-2024 growth — are sitting on forced-liquidation thresholds. When a market-neutral book loses money in a falling market, I check the basis first. When it loses money this uniformly, I check the leverage.\n\nI have spent five years dissecting collapsed trading systems. Luna. FTX. The February 2024 micro-cap crash. The mechanism differs every time; the architecture of failure does not. This was not a black swan. It was a structural feature of how the industry scaled: strategy technology running far ahead of risk infrastructure, leverage running far ahead of capacity.\n\nDue diligence is just paranoia with a spreadsheet. The spreadsheet had a cell marked \"stress test\" that nobody at scale bothered to populate.\n\nContext: The 1.5 Trillion RMB Machine\n\nChina's quant industry is not a boutique sector. As of early 2024, it manages somewhere between 1.5 and 1.8 trillion RMB — roughly a quarter of all private securities funds — with the head table occupied by a familiar roster: High-Flyer, Jiukun, Minghong, Lingjun. Their product lines span index enhancement, market-neutral, CTA, and the leveraged product of the hour: DMA.\n\nDMA is an over-the-counter long-short equity swap structure brokered through investment banks. A client posts margin, the broker underwrites the swap counterparty risk, and the quant manager runs a strategy with two to four times effective exposure. In a rising market, this is a money printer. In a falling one, it is a chain reaction waiting for a trigger. The counterparty ledger is what most retail observers miss: when DMA products lose money, the losses do not evaporate into \"the market.\" They crystallize against specific broker balance sheets, which is precisely why brokers are fast to force liquidation before a dispute over who owes what begins.\n\nTo understand how the sector got here, trace the money. The asset-shortage era — a
