Risk is the permanent loss of capital.
It is not volatility, nor is it uncertainty. It is the realization of a loss. Therefore, risk is hard to understand because it is only clear with hindsight that a loss has occurred. Understanding how risk works can avoid this permanent loss by avoiding the mistakes that cause the permanent loss of capital.
Risk can also be used advantageously. Knowing that there is the prospect of loss, planning, and investment strategies that profit from these losses put you on the right side of the equation. Risk can be used to an investor’s advantage.
Essentially, anti-fragile (to coin Naseem Taleb’s term) strategies can benefit from volatility, uncertainty, and loss. Randomness permeates all markets, which means risk is always present. Knowing that, investment strategies need to be able to withstand unpredictable or unforeseen stresses. Not all risk factors can be known, or even if potential risks are identified, the magnitude and timing are unknown. What can be certain is that they will occur, and a portfolio that is “fragile” can be devastated