open outcry

Go to Balogun market on a Saturday morning and stand near the fabric sellers for two minutes. Someone is shouting a price for lace, another buyer shouts back a lower one, hands wave, a third person cuts in with an offer, and somehow, in all that noise, a deal gets struck and money changes hands. That, more or less, is Open Outcry, except instead of lace, the traders are shouting prices for shares, bonds, or contracts.

Before computers took over, this was how big stock exchanges worked. Traders stood on a physical floor, sometimes in a pit shaped like a bowl, and called out the price at which they wanted to buy or sell. They used hand signals too, palms facing certain ways, fingers counting numbers, because the noise could get so loud that shouting alone was not enough. It looked chaotic to an outsider, but the traders understood it perfectly. It was their own language, built for speed.

The Nigerian Stock Exchange, now called the Nigerian Exchange, actually used Open Outcry for years before it moved to an electronic trading system. Older stockbrokers in Lagos still tell stories of the trading floor on Customs Street, the shouting, the sweat, the small dramas of a price moving before your eyes. Today almost every exchange in the world, including Nigeria's, has replaced this with electronic trading, where orders are matched by computers in fractions of a second, no shouting required.

The London Stock Exchange also grew out of this same tradition, and its old trading floor once buzzed with the same kind of noise before screens took over there too. A few markets, like some commodity futures pits in Chicago, kept Open Outcry alive much longer because traders felt the human element helped them read the mood of the market, something a screen cannot always show.

It sounds old fashioned now, almost like a museum piece, but it explains a lot about how modern trading language came to be. Terms like bid, offer, and even the energy of a market rally all trace back to those noisy floors.