"As the "world's most bearish hedge fund manager", Horseman Global's Russell Clark explained in January 2019, autocallables, which are fundmentally structured products that are extremely popular with South Korean traders, are best thought of as a service. A bank will offer to sell insurance on the stock market on your behalf, so that you can generate an income from the premiums received. So rather than buying an autocallable, it’s better to think of an investor as posting collateral for a bank to sell puts on their behalf. Typically, the bank will tell the investor what sort of yield they can generate, for a certain level of insurance. For example, a 5% return as long as the S&P 500 does not fall to 2000, from roughly 2900 today.
Typically, when markets fall, the price of insurance rises, and the bank does not need to sell that much insurance to meet a 5% yield target for an investor. Conversely, when markets rise, insurance prices fall, and banks would need to sell more insurance to meet the target yield. ...
However, when there are times when this process goes haywire: i) either when a negative gamma feedback loop emerges, similar to what happened in February 2018 with the VIX complex in the US that liquidated 3x levered inverse vol ETNs, or ii) when the market drop is so precipitous that there is a step function lower in the value of the collateral, and local banks flood clients with margin calls, which in turn prompt a forced liquidation of more risk assets, triggering a feedback loop cascade where selling begets more selling, and not just of South Korean assets, but global, as most of the risk assets collateralizing the autocallables universe are not domestic to South Korea...."
www.zerohedge.com/markets/...bomb-across-global-stock-markets von Tyler Durdan persönlich