Be comfortable using them because improper execution of orders can cost you money.

FORBES: How To Place Orders With A Forex Broker

The effect in combat situations can be to complicate, if not to undermine entirely, the disciplined execution of orders that can prove to be the difference between victory and defeat.

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And this week it won a major victory when the U.S. Securities and Exchange Commission voted (albeit narrowly) to approve Regulation NMS, which includes new trade-through-rules that require execution of orders even if it means going to rival exchanges to do so.

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India's Supreme Court has put on hold "until further orders" the execution of four men convicted of being associates of notorious bandit Veerappan.

BBC: Veerappan seen in this undated file photo.

Due to a building emergency (power issues), Knight Capital Americas is asking you to seek an alternate destination for the order handling and execution of your OTC, Options and Listed orders until further notice.

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Dan Mathisson, Credit Suisse managing director and head of advanced execution services, believes these massive orders were from quant hedge funds whose algorithms suddenly decided stocks were cheap and sent out huge buy orders, all over 1 million shares each.

FORBES: Watch Out For The Quants

Like a lot of the other guerrilla marketmakers, Citron and Levine got their start through Nasdaq's Small Order Execution System, or SOES. This allows orders of 1, 000 shares or fewer to be executed automatically at marketmakers' quots.

FORBES: Guerrillas on Wall Street

Like a lot of the other guerrilla marketmakers, Citron and Levine got their start through Nasdaq's Small Order Execution System, or SOES. An early response to critics of Nasdaq's voluntary dealer market, SOES allowed orders of 1, 000 shares or fewer to be executed automatically at marketmakers' advertised quotes.

FORBES: Free enterprise comes to Wall Street