DECLARATION OF ARTHUR PARKER
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`1, Arthur Parker. declare that:
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`I am personally familiar with the facts set forth herein, and. if called as a witness.
`1.
`Iconld and would testify thereto of my own personal knowledge.
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`I started my career of trading professionally by clerking on the floor of the
`2.
`Chicago Board of Trade (“CBOT”) in early 1990. I started uading in the ten year pit at
`the CBOT in November of 1990. In early 2000, I started trading electronically on Project
`A, the CBO'l“s first elecronic trading system. In around the fall of 2000, I began trading
`electronically using software provide by Trading Technologies (“'I'I‘"). At that time, I
`was aware of various trading screens that were available. including the Project A
`interface. the Eurex platform and products offered by YesTrader and Patsystems. In
`2001, I formed a proprietary trading firm called Parker Trading. Parker Trading currently
`has around 20 traders and is located in Charleston, South Carolina.
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`I started using 'l'l"s software shortly after Tl‘ released a new trading tool called
`3.
`MD Trader. MD Trader was much different than the trading tools available at the time.
`For example, MD Trader displayed the market data relative to a static column of prices so
`that when the market changed, the data being displayed moved up and down the screen.
`This was different than the screens that were available at the time which displayed the
`best bid and best ask prices in designated cells such that when the market changed, the
`numbers in these cells changed. MD Trader also provided the ability to do very fast and
`accurate order entry by allowing the trader to preset quantities and enter orders with just
`one click at a location aligned with a static price. This was much different than the
`existing systems at the time which, to the extent they allowed a trader to enter an order
`with one click, put the trader at risk of sending an order in at an unintended price if the
`price on screen changed at the moment the trader clicked. MD Trader also had a unique
`one—clicl< centering feature that allowed a trader to quickly bring the market to the center
`of the trading window.
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`Because of the differences discussed above, MD Trader was a major improvement
`4.
`over the preexisting systems. This improvement was so significant that I cannot put a
`price on its value. MD Trader enables a trader to engage the market the same way that he
`does in the pit. It has made it simple to execute in the market. The improved display
`reduces the amount of thinking required by the trader so that the trader can react quicker.
`The older style display required the trader to read numbers and perform mental
`calculations to figure out movements in the market. Also, the improved order entry
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`Page 1 of 2
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`TRADING TECH EXHIBIT 2042
`TD Ameritrade v. Trading Technologies
`CBM2014-00133
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`allows a trader to enter orders without hesitation. In addition, the one-click centering
`feature allows a trader to center multiple products at the same time so the trader can see
`relative movements between the multiple products very easily.
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`I declare under penalty of perjury that the foregoing is true and c
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`.
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`August 10... 2004.
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`ted on
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`Arthur Parker
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