SDI Productions / Getty Images Indeed, while more than 80% of Americans in their 60s are invested in retirement plans, only about 35% have brokerage accounts. Key Takeaways For people in their 60s, retirement accounts typically hold more than $300,000 in stocks on average—but the median balance is closer to about$100,000. Taxable brokerage accounts vary widely, but industry data show engaged near-retirees often hold low- to mid-six-figure balances. As retirement nears, many wonder if their investme ...