risk
Risk is the chance of permanent loss
The rule
Risk is not how much a price wobbles. It is the chance of losing money you never get back. A wobble and a real loss are not the same thing.
Where it flips
Treating every wobble as harmless is the opposite mistake. For someone who will be forced to sell soon, a short drop becomes a real loss the moment they are made to sell into it.
Marks says the textbook habit of treating risk as wobble misses the point. A jumpy price you can hold through is only discomfort, not damage. Real risk is the chance of losing your money for good, the money that never comes back. That is what sets apart a bond default, a fraud, or a dead tiny company from a broad index that merely fell and then recovered. For a beginner the shift is vital. Crypto or a wild small-cap can go to zero and stay there. That is a real loss. A broad fund's 30% drop is usually short-lived if you can wait.
A worked example
A blue-chip index falls 35% in a crash and fully recovers over three years. Painful wobble, but no real loss. A borrowed-up tiny company falls 90% and gets delisted. That is a loss for good, and no patience undoes it. [illustrative]
How to spot it
- ·a loss-for-good and a short drop told apart
- ·the question 'can this go to zero and stay there?' asked
- ·things that can default or get delisted handled with extra care
Howard Marks · The Most Important Thing; Oaktree memos