Don’t Let a Hot Market Freeze Your Retirement Plan
After a decade of outsized equity gains, it’s tempting to assume big returns will keep doing the heavy lifting. History says otherwise. Future returns could be average—or worse—and most retirees spend closer to their working budgets than rules of thumb suggest. Your best hedge: save more, plan realistically, and let markets be a bonus, not the plan.
What’s really risky right now
- Complacency from big gains: The S&P 500’s strong year and decade-long run make retirement look effortless. But elevated valuations often precede lower future returns. Counting on repeat double-digit gains is a recipe for a gap later.
- Spending myths: Popular rules say you’ll need just 70%–80% of your working-years budget. Research by Edward McQuarrie and William Bernstein shows retirees typically spend ~93%–97% of prior levels. People who spend less usually do it because they must, not because life gets cheaper.
- Long-run return reality: Looking across overlapping 30-year windows since 1793, stocks delivered <3% real in 160 cases and <4% real in 302—an eighth of all periods. The long-term average is ~6.1% real, but “miserable” decades happen.
What that means for saving rates
If you work ~30 years and retire for ~30 years, the required saving rate (as a share of pretax income) rises sharply when real returns fall:
| Assumed Real Return | Save This Much (≈ 30/30 plan) | Notes |
|---|---|---|
| 5% real | ≈ 12% of pretax income | Baseline if markets cooperate |
| 4% real | > 15% | More realistic if valuations compress |
| 3% real | ≈ 21% | Hedge against “miserable” decades |
Even with a longer career (40 years) and a shorter retirement (20 years), a 3% real return still implies saving about 10% of income.
Required saving rate at different real returns
What to do now
- Make saving the default win: Target 15%–21% if you want resilience against low-return decades; anything above 12% is upside insurance.
- Budget for reality: Plan on spending ~93%–97% of your working budget in retirement unless you choose to downshift.
- Sequence matters: Keep a cash/bond buffer for the “miserable” phase so you aren’t forced to sell stocks low.
- Flex your three levers: Save more, work a bit longer, or take measured risk—saving more is the safest lever.
Educational only, not investment advice.
