Andrew Neitlich is the last person you'd expect to be rattled by the stock market.

He once worked as a financial analyst picking stocks for a mutual fund. He has huddled with dozens of CEOs in his current career as an executive coach. During the dot-com crash 12 years ago, he kept his wits and did not sell.

But he's selling now.

"You have to trust your government. You have to trust other governments. You have to trust Wall Street," says Neitlich, 47. "And I don't trust any of these."

Defying decades of investment history, ordinary Americans are selling stocks for a fifth year in a row. The selling has not let up despite unprecedented measures by the Federal Reserve to persuade people to buy and the come-hither allure of a levitating market. Stock prices have doubled from March 2009, their low point in the Great Recession.