Stock Exchange Hand Signals
Op-Chart: Making Money Hand Over Fist (New York Times) is another in a long line of really slick, interactive, infographic presentations. Because of the extreme noise on the trading floor, traders use hand signals to indicate buy/sell interest, prices, amounts and status information.
“An oil trader demonstrates the hand signals used on the floor of the New York Mercantile Exchange. Text and graphics by Ben Schott, a contributing columnist.”