Risk is the other side of return
No investment gives you something for nothing. Assets that offer higher long-run returns, like stocks, have historically also had larger and more frequent drops than cash or short-term Treasuries.
Common types of risk
- Market risk: the whole market falls. See bull vs bear markets.
- Concentration risk: too much money in one stock, sector or country. Diversification reduces it.
- Interest-rate risk: bond prices move opposite to rates.
- Credit risk: a borrower fails to pay.
- Inflation risk: your money buys less over time. Cash is exposed to this most.
- Liquidity risk: you cannot sell quickly at a fair price. See liquidity.
- Sequence risk: a big drop right when you start withdrawing hurts more than the same drop later.
- Behavior risk: selling in a panic or chasing hot trends. For many people this one costs the most.
Measuring risk
Volatility measures how much prices swing. Beta measures sensitivity to the market. A drawdown measures the drop from a peak. None predicts the future; they describe the past.
The math of losses
Losses are harder to recover than gains are to make. A 50% fall needs a 100% gain to get back to even, because you are climbing from a smaller base. That is one reason investors avoid large single-stock bets.
Managing risk
- Diversify across companies, sectors and asset types.
- Match asset allocation to your time horizon and temperament.
- Keep an emergency fund so you are never forced to sell in a downturn.
- Invest regularly, as in dollar-cost averaging.
Quick answers
Is keeping everything in cash risk free?
It avoids price swings, but inflation can erode its buying power over time, and balances above insurance limits carry bank risk.