It depends on your field. If you specialize in stock analysis/picking, etc., of course. But if you're in a support function such as finance or IT, there are more avenues open to you. In my IT career, I worked for a state university, a manufacturing/retail company, a consultancy, two retailers, one of the nation's largest brokerages, an S&P 500 tech company, and two utilities. The only layoff was at one of the utilities, ironically enough. Skills readily transferred and it was always enlightening to learn a new line of business.