The conventional wisdom about investing in midlife — reduce risk, shift to bonds — was developed in an era when 'midlife' meant something it no longer means. The woman who retires at sixty-five and lives to eighty-eight has a twenty-three-year investment horizon. These are not short timeframes.
The risk that is most underappreciated in midlife financial planning is not market risk but longevity risk: the risk of outliving your money. This risk is particularly acute for women, who live longer than men on average.
The foundational principle of investing — diversification across asset classes, geographies, and sectors — applies at every age. The specific mix depends on individual circumstances, not on age alone.
The most important investment decision most midlife women will make is not which asset to buy but whether to stay invested when everything in them is telling them to sell.
Low-cost index funds — broadly diversified, tax-efficient, requiring minimal active management — remain the most evidence-based approach to long-term investing for most people.
This article is written for educational purposes and does not constitute financial, legal, or tax advice. Consult a licensed financial advisor, attorney, or tax professional for guidance specific to your situation. Sources available below.
References
On Longevity Risk & Women's Retirement Horizons
- Arias E, Xu J. "United States Life Tables, 2021." National Vital Statistics Reports. 2023;72(12). cdc.gov
- "Retirement Security: Older Women Report Facing a Financially Uncertain Future." U.S. Government Accountability Office (GAO-20-435). 2020. gao.gov
- "Women's Retirement Income." Social Security Administration. ssa.gov
On Diversification & Asset Allocation
- Markowitz HM. "Portfolio Selection." The Journal of Finance. 1952;7(1):77–91. jstor.org
- Brinson GP, Hood LR, Beebower GL. "Determinants of Portfolio Performance." Financial Analysts Journal. 1986;42(4):39–44. cfainstitute.org
On Low-Cost Index Investing & Behavior
- Fama EF, French KR. "Luck versus Skill in the Cross-Section of Mutual Fund Returns." The Journal of Finance. 2010;65(5):1915–1947. onlinelibrary.wiley.com
- "SPIVA U.S. Scorecard." S&P Dow Jones Indices. spglobal.com
- Barber BM, Odean T. "Trading Is Hazardous to Your Wealth." The Journal of Finance. 2000;55(2):773–806. faculty.haas.berkeley.edu
- "Mind the Gap 2023." Morningstar. morningstar.com
On Women Investors
- Barber BM, Odean T. "Boys Will Be Boys: Gender, Overconfidence, and Common Stock Investment." Quarterly Journal of Economics. 2001;116(1):261–292. faculty.haas.berkeley.edu
- "Women and Investing Study." Fidelity Investments. 2021. fidelity.com