Volatility rule
Do the emotional work before the market asks for it.
A portfolio should define what happens in a drawdown before the drawdown arrives. That includes which assets fund spending, what triggers rebalancing, what would justify selling, and what should be ignored as noise.
Risk
Warning sign
Useful response
Forced selling
Short-term cash needs are funded by long-term volatile assets.
Increase cash buffers and separate spending assets from growth assets.
Behavior drift
Decisions are being made because prices moved, not because facts changed.
Return to the investment memo and review original assumptions.
Hidden concentration
Different assets respond to the same risk factor at the same time.
Map exposure by rates, credit, geography, customer type, and liquidity.