With the recent news coverage of bubbles/ comparisons to 1987/ VIX-shorting etc, it seems like ppl are expecting a reversal of the strongly trending markets
It seems like in the past, whenever there's a report of rogue traders who lost billions, usually it's some guy who bet on mean reversion using leverage:
Kerviel - going long European stock index futures when mkt was tanking
Leeson - going long Japanese stock index futures when mkt was tanking
Adoboli - (reportedly) long EuroStoxx, DAX, S&P index futures when mkt was tanking
Hamanaka (Mr 5 percent) - long copper futures then mkt tanked
Liu (Chinese govt trader) - short copper futures when mkt short squeezed
The story generally seems to have a few elements:
a) Mean reversion trading
b) Leverage
c) Averaging down repeatedly
d) Strong trending markets with little retracement
& then there's a point where the unrealized drawdown becomes so big the margin is called, story gets into press/bank risk mgrs step in, drawdown gets locked in, etc
How come we haven't heard of "rogue" (cowboy) traders who made billions within 3-6 months by averaging up along trends?
If the rogue trader who averaged down lost 1 billion, then his counterpart who averaged up would have made 1 billion in the same timeframe.
Even with ppl who took the opposite side of the London whale, it looks like the profits were split by a dozen or more funds, not a single entity.
Any stories of guys who did the opposite of the rogue traders who averaged down, by instead averaging up betting on sustained momentum, and made billions?
It seems like in the past, whenever there's a report of rogue traders who lost billions, usually it's some guy who bet on mean reversion using leverage:
Kerviel - going long European stock index futures when mkt was tanking
Leeson - going long Japanese stock index futures when mkt was tanking
Adoboli - (reportedly) long EuroStoxx, DAX, S&P index futures when mkt was tanking
Hamanaka (Mr 5 percent) - long copper futures then mkt tanked
Liu (Chinese govt trader) - short copper futures when mkt short squeezed
The story generally seems to have a few elements:
a) Mean reversion trading
b) Leverage
c) Averaging down repeatedly
d) Strong trending markets with little retracement
& then there's a point where the unrealized drawdown becomes so big the margin is called, story gets into press/bank risk mgrs step in, drawdown gets locked in, etc
How come we haven't heard of "rogue" (cowboy) traders who made billions within 3-6 months by averaging up along trends?
If the rogue trader who averaged down lost 1 billion, then his counterpart who averaged up would have made 1 billion in the same timeframe.
Even with ppl who took the opposite side of the London whale, it looks like the profits were split by a dozen or more funds, not a single entity.
Any stories of guys who did the opposite of the rogue traders who averaged down, by instead averaging up betting on sustained momentum, and made billions?
