How Much of Your Money Should Go Into Stocks
The amount you invest in stocks depends on your age, how long until you need the money, and how much loss you can tolerate without changing your plan
There is no single correct answer because your situation is different from everyone else's. A 25-year-old with 40 years until retirement can weather a stock market drop that would force a 65-year-old to sell at a loss. Someone saving for a house down payment in three years should hold far less in stocks than someone funding retirement 30 years away. The goal is to build a mix—called an asset allocation—that lets you stay invested through market swings without panic-selling when prices fall.
The most practical starting point is your time horizon: how many years until you need to spend this money. Money you will need within five years should rarely be in stocks at all. Money you will not touch for 20 years can afford to be mostly stocks. Between those points, the percentage rises gradually.
Key Takeaways
- Your stock allocation should match how long you can leave the money invested—typically higher percentages for longer time horizons and lower percentages for money you need soon.
- A common rule of thumb subtracts your age from 110 or 120 to estimate a starting stock percentage, though this is a rough guide, not a prescription.
- Your comfort with seeing your account drop 20 or 30 percent in a bad market year matters as much as the math, because a plan you abandon is worse than a conservative plan you stick with.
- Most people benefit from holding some bonds or stable-value funds alongside stocks to reduce the size of losses and the temptation to sell at the wrong time.
- Your allocation should shift gradually as you age or as your goal date approaches, not stay the same forever.
Time horizon is the strongest signal for how much stock to hold
If you need the money in one to three years, stocks are the wrong tool. A market downturn could force you to sell at a loss right when you need the cash. For this money, use a savings account, money market fund, or short-term bond fund instead.
If your time horizon is three to seven years, you might hold 20 to 40 percent in stocks and the rest in bonds or stable investments. This gives you some growth potential but limits the damage if the market drops before you need the money.
If you will not touch the money for seven to 15 years, a 50 to 70 percent stock allocation is common. You have enough time to recover from a downturn, and the higher stock exposure gives you better long-term growth odds.
If your horizon is 15 years or longer—typical for retirement savings when you are in your 30s or 40s—many people hold 80 to 100 percent stocks. The decades ahead give you time to ride out multiple market cycles. Even a severe drop has years to recover before you need the money.
The age-based rule of thumb and why it is just a starting point
A common shortcut is the "110 minus your age" or "120 minus your age" rule. If you are 40, you would subtract 40 from 110 to get 70—meaning 70 percent stocks and 30 percent bonds. At 60, that formula gives 50 percent stocks. At 70, it gives 40 percent stocks.
This rule works because it roughly aligns with time horizon: younger people have longer until retirement, so they can hold more stocks. As you age, the formula automatically shifts you toward more conservative holdings. Some financial institutions use this as a default for target-date funds, which automatically rebalance your mix as you approach retirement.
But the rule is not precise. It assumes you retire at a standard age and live a standard lifespan. It does not account for whether you have a pension, whether you are still working, or whether you have other sources of income. A 55-year-old planning to work until 75 might hold 80 percent stocks, while a 55-year-old retiring next year might hold 40 percent. Use the formula as a starting point, not a final answer.
How much loss you can stomach without abandoning your plan
The math says you should hold 80 percent stocks if you have 20 years until retirement. But if a 30 percent market drop would panic you into selling everything, the math is useless—because you will lock in losses at the worst time. Your actual allocation should be one you can live with during a bad year.
Market downturns happen regularly. Since 1950, the stock market has fallen 10 percent or more roughly once every two years. A 20 percent drop (called a "bear market") occurs several times per decade. A 50 percent drop happens roughly once per generation. If you hold 80 percent stocks, you should expect your account to drop 40 percent in a severe downturn. If that number makes you want to sell, you are holding too much stock.
One way to test your tolerance: imagine your $100,000 account drops to $70,000 in a market crash. Can you leave it alone and wait for recovery? Or would you sell to stop the pain? If you would sell, reduce your stock percentage. A plan you stick with beats a plan that looks good on paper but breaks under pressure.
Why most people benefit from holding both stocks and bonds
A portfolio of only stocks maximizes growth but creates large swings. A portfolio of only bonds minimizes swings but may not grow fast enough to meet long-term goals. A mix of both typically offers a better trade-off: bonds cushion the fall when stocks drop, and stocks provide growth when bonds are flat.
In a typical year when stocks rise 10 percent and bonds rise 3 percent, a 70/30 portfolio (70 percent stocks, 30 percent bonds) rises about 8 percent. In a bad year when stocks fall 20 percent and bonds rise 5 percent, that same 70/30 portfolio falls only about 11 percent instead of 20 percent. The bonds do not prevent losses, but they reduce them—and that smaller loss is often enough to keep you from panic-selling.
Bonds also provide something to rebalance into when stocks are cheap. If you hold 70 percent stocks and 30 percent bonds, and a market crash drops stocks to 50 percent of your portfolio, you can sell some bonds and buy stocks at depressed prices. This forces you to buy low and sell high, the opposite of panic-selling.
How your allocation should change as you age or approach your goal
Your allocation is not a set-it-and-forget-it decision. As you age or as your goal date approaches, your time horizon shrinks, and your allocation should shift toward more conservative holdings. This happens automatically in target-date funds, which gradually reduce stock exposure as the target retirement year approaches.
If you manage your own allocation, you can rebalance once or twice per year. If your target is 70 percent stocks and 30 percent bonds, but market gains have pushed you to 75 percent stocks, you sell some stocks and buy bonds to return to your target. This keeps you from drifting into a riskier mix than you intended.
As you enter the final five years before you need the money, most people shift significantly toward bonds and stable investments. If you are retiring in five years, holding 80 percent stocks exposes you to the risk that a market crash in year four will force you to sell stocks at a loss to fund year five's expenses. A more conservative mix—perhaps 40 to 50 percent stocks—reduces that risk.
Common allocations for different life stages
| Life Stage | Time Horizon | Typical Stock Allocation | Typical Bond Allocation |
|---|---|---|---|
| Early career (20s–30s) | 30+ years | 80–100% | 0–20% |
| Mid-career (40s–50s) | 15–25 years | 60–80% | 20–40% |
| Pre-retirement (55–65) | 5–15 years | 40–60% | 40–60% |
| Early retirement (65+) | Variable | 30–50% | 50–70% |
These ranges are guidelines, not rules. Your actual allocation depends on your specific situation: whether you have a pension, how much you have saved, whether you are still earning income, and how much risk you can tolerate. Someone with a secure pension and substantial savings might hold less stock than someone relying entirely on investment returns.
The table shows typical patterns, but your allocation may differ. A 35-year-old with significant savings and a stable job might hold 60 percent stocks instead of 80 percent and still reach retirement goals. A 50-year-old still catching up on savings might hold 75 percent stocks to maximize growth. Use the table as a reference point, then adjust based on your circumstances.
Frequently Asked Questions
Should I put all my money in stocks if I am young?
Not necessarily. While you have time to recover from losses, holding some bonds or stable investments can reduce the emotional difficulty of staying invested during a crash. Many people in their 20s and 30s hold 80 to 90 percent stocks rather than 100 percent for this reason. The extra stability is worth slightly lower expected returns.
What if I do not know when I will need the money?
If you are saving for retirement and do not have a specific target date, use your expected retirement age as your time horizon. If you are saving for multiple goals with different timelines—a house down payment in five years and retirement in 30 years—keep the money separate and use different allocations for each goal.
How often should I rebalance my portfolio?
Once or twice per year is typical. Some people rebalance when their actual allocation drifts more than 5 percent from their target—for example, selling stocks if they have grown to 75 percent of a 70 percent target. Others rebalance on a fixed schedule, like January 1 each year. Either approach works; the key is doing it consistently.
Does my allocation need to change if the market crashes?
No. A market crash is exactly when you should stick to your allocation. If you planned to hold 70 percent stocks and a crash drops you to 60 percent, that is the time to buy stocks at low prices, not sell them. Changing your allocation because of market movements usually locks in losses and derails your long-term plan.
What if I have a 401(k) at work—does this apply to me?
Yes. Your 401(k) allocation should follow the same principles: match your stock and bond mix to your time horizon and risk tolerance. Many 401(k) plans offer target-date funds that automatically adjust your allocation as you age, which simplifies the decision. If your plan does not offer target-date funds, you can build your own allocation using the stock and bond funds available in your plan.