Two years ago the S&P 500 fell 12% in one day. You'd need about $1,250,000 invested in it to lose $150,000 in that day. That doesn't sound like an unlikely bala

Two years ago the S&P 500 fell 12% in one day. You'd need about $1,250,000 invested in it to lose $150,000 in that day. That doesn't sound like an unlikely balance for a 401K after 20 years to me.