If you’ve ever flipped on CNBC on one of those gloomy days when the stock markets are tanking, you’ve seen Peter Tuchman. He’s the fellow with the navy-blue jacket, Hermès tie, silver goatee, and the wild-ass protrusions of white hair on either side of his bald pate that give him more than a passing resemblance to a cross between Albert Einstein and what Larry Fine would look like if the Three Stooges were still in circulation.

He’s the one the cable-TV cameras like to focus on, the number 588 pinned to his lapel, looking particularly concerned, standing on the well-trodden floor of the New York Stock Exchange, even though in his 35 years as a floor broker he’s never owned a share of stock. He has been called the “most photographed man on Wall Street.”