His father is the chairman and chief executive officer of the Chicago Board Options Exchange.

The Chicago Board Options Exchange also said it would close two hours early on those days.

The first day of trading on the Chicago Board Options Exchange.

Her father was a trader at the Chicago Board Options Exchange.

Sizable amounts of money were also won and lost last week on the Chicago Board Options Exchange.

The move follows a similar decision earlier this week by the Chicago Board Options Exchange.

And now, despite strong growth over the last four years, the Chicago Board Options Exchange is feeling the heat from its sister exchanges.

The Chicago Board Options Exchange also halted trading for a few minutes.

Traders said they understood the offer had come from the Chicago Board Options Exchange.

Of the four exchanges, the Chicago Board Options Exchange has the most trading volume.

His father is the chairman and chief executive officer of the Chicago Board Options Exchange.

The Chicago Board Options Exchange also said it would close two hours early on those days.

The first day of trading on the Chicago Board Options Exchange.

Her father was a trader at the Chicago Board Options Exchange.

Sizable amounts of money were also won and lost last week on the Chicago Board Options Exchange.

The move follows a similar decision earlier this week by the Chicago Board Options Exchange.

And now, despite strong growth over the last four years, the Chicago Board Options Exchange is feeling the heat from its sister exchanges.

The Chicago Board Options Exchange also halted trading for a few minutes.

Traders said they understood the offer had come from the Chicago Board Options Exchange.

Of the four exchanges, the Chicago Board Options Exchange has the most trading volume.

His father is the chairman and chief executive officer of the Chicago Board Options Exchange.

The Chicago Board Options Exchange also said it would close two hours early on those days.

The first day of trading on the Chicago Board Options Exchange.

Her father was a trader at the Chicago Board Options Exchange.

Sizable amounts of money were also won and lost last week on the Chicago Board Options Exchange.

The move follows a similar decision earlier this week by the Chicago Board Options Exchange.

And now, despite strong growth over the last four years, the Chicago Board Options Exchange is feeling the heat from its sister exchanges.

The Chicago Board Options Exchange also halted trading for a few minutes.

Traders said they understood the offer had come from the Chicago Board Options Exchange.

Of the four exchanges, the Chicago Board Options Exchange has the most trading volume.