Banks Use "Crash Put Options" to Hedge Leveraged ETF Tail Risk
Claire Weston
As single-stock leveraged ETFs balloon in size, the swap-dealing banks behind them are buying crash puts at unprecedented scale — because if the underlying stock drops past a critical threshold in one day, the ETF's assets won't cover the loss and the bank eats the gap.
What exactly are banks afraid of?
Leveraged ETFs achieve their daily 2× or 3× target through total-return swaps with banks, posting cash and Treasuries as collateral and settling mark-to-market every day.
The danger lives in the tail: if the underlying stock falls roughly 50% in a single day (for a 2× fund) or 33% (for a 3× fund), the ETF's net assets can't cover the loss.
This means → the shortfall lands directly on the bank, with no recourse to the fund issuer — that is "gap risk."
How do crash puts actually work?
A crash put is a chain of daily-resetting, deep out-of-the-money put options designed to pay out only if an extreme single-day drop occurs within a set window.
In plain terms = the bank buys an insurance policy that sits dormant unless the stock craters on a given day — it never triggers on ordinary volatility.
Kairos Investment Advisors founder Ramon Verastegui notes the product isn't new, but surging demand from ballooning leveraged funds is "driving the market to develop rapidly."
How big is the demand?
Janus Henderson portfolio manager Natasha Sibley: "I have never seen demand for these products at this level."
Goldman Sachs emailed clients in May, flagging crash hedges on SK Hynix and Samsung Electronics as a trade opportunity — a 50%+ single-day close would push linked 2× ETFs toward zero.
Goldman's pitch: investors willing to bear up to one year of tail risk with leverage can earn 14.2%–20% annualized — essentially "acting as insurer, selling overpriced crash protection for a fat premium."
Can a 50% single-day drop actually happen?
SK Hynix's largest-ever single-day decline hit 15.4% on July 13 this year — far from 50%, but not unimaginable at scale.
In the US, EV maker Lucid Group fell as much as 57% intraday on July 14, closing down 16%; linked leveraged ETFs were subsequently shut down.
This reflects a practical reality: extreme drops are not theoretical — real cases have already come close to or triggered gap risk.
Don't Korea's price limits contain the risk?
Korea imposes a 30% daily price limit and has circuit breakers, but crash puts settle on the official closing price.
This means → if a stock hits limit-down and stays halted through the close, that day's loss rolls into the next session. Multiple consecutive limit-down days can still accumulate enough to trigger gap risk.
In plain terms = price limits don't eliminate the risk — they just convert a one-day blowup into a slow-motion multi-day blowup.
Can this risk-transfer chain keep running?
Barclays, Citigroup, Goldman Sachs, and Bank of America are the most active swap counterparties for US-listed leveraged ETFs, each holding more than 10% of total swap notional.
The critical question: whether the crash-put market's absorption capacity can keep pace with banks' ever-growing hedging demand.
This reflects a deeper tension: the bigger leveraged ETFs get, the more banks depend on the crash-put market to offload risk — but if not enough "insurers" step up, the entire chain stalls.
Content is for reference only, not financial advice.