Women trail men in retirement savings: Survey
When it comes to retirement, American women save far less than men and invest too conservatively, according to a new survey from BlackRock. · CNBC

American women save far less for retirement than their male peers, and they invest too conservatively to close the gap, according to a new survey asset management firm BlackRock will release March 5. CNBC was granted exclusive early access to the survey results.

The firm's Global Investor Pulse Survey of 27,000 investors worldwide, including 4,000 Americans, found 53 percent of working-age American women have started saving for retirement, compared with 65 percent of men.

The firm also found that the women who do set money aside fail to invest for growth, which further erodes their future returns.

According to the results, the average female investor keeps 68 percent of her portfolio in cash and cash equivalents, such as money market funds, Treasury bills and certificates of deposit, which have a low-risk, low-return profile. By comparison, men allocate 59 percent of their portfolios to cash.

Indeed, risk-aversion among female investors runs disproportionately high. Some 28 percent of those surveyed indicated they are willing to assume higher risks to achieve higher returns, compared with 45 percent of men.

Much of the gender savings gap is attributed to women's role as the primary caregiver. Women spend fewer years in the workforce on average, putting their careers on hold or taking part-time jobs to take care of young children or aging parents.

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During those years, they are generally ineligible for company retirement plans and miss out on matching contributions.

The BlackRock survey found that women tend to close the savings gap in their later years when they return to work, but by then the benefit of compounded growth is largely lost.

American women age 55 to 64 with retirement savings have accumulated an average of $81,300 compared with $118,400 for their male counterparts, the survey reveals.

A 2015 analysis of retirement readiness by the Employee Benefit Research Institute also found that single females on the verge of retirement (early baby boomers) have a savings shortfall of nearly $63,000, while single males of the same age group have a deficit of $34,000.

The lower savings rate bodes poorly for a gender that tends to win the life-expectancy lottery.

"Blessed with longer lives, it's all too likely women will come to find that the retirement years last longer than they had planned," said Heather Pelant, personal investor strategist for BlackRock. "With lower savings rates and less willingness to take risks, many women are faced with greater financial obstacles in retirement than men."