It started electronic trading in 2008 but maintains an open-outcry trading floor for its 171 members.

它在2008年开始电子交易，但为其171家会员保留了公开喊价交易大厅。

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But in recent years the colourful open-outcry trading floors have gradually ceded business to electronic transactions.

但在最近几年，有声有色、公开叫价的交易大厅已逐渐将业务拱手让给电子交易。

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OPEN-OUTCRY trading is supposed to be a quaint, outdated practice, rapidly being replaced by sleeker, cheaper electronic systems.

公开叫价交易被认为是一种奇怪而过时的做法，应该很快被更加时髦，更加廉价的电子系统所取代。

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While originally designed to protect regional exchanges from the NYSE, in practice it has protected the NYSE, with its floor-based open-outcry trading system, from new electronic exchanges.

ECONOMIST: The people’s lawyer strikes again | The

Electronic exchanges are threatening the survival of open-outcry futures trading as practiced by the CBOT and its crosstown rival, the Chicago Mercantile Exchange.

FORBES: Last one out, shut the lights

The facility is already obsolete: Electronic exchanges are threatening the survival of open-outcry futures trading as practiced by the CBOT and its crosstown rival, the Chicago Mercantile Exchange.

FORBES: Futures Luddites