All this is accomplished whileincreasing accuracy reliability and actionability of essential test

All this is accomplished whileincreasing accuracy, reliability and actionability of essential test results.The Company is focused on sustaining this competitive advantage by leveragingits expertise in antibody design, immunology, proteomics, bio-luminescence andother bio-reactive technologies to continue its successful customer-focusedresearch and development efforts. Recent innovations in high throughputproduction of antibodies from genetic antigens will complement the Company’sestablished leadership in commercial and custom antibody production for theResearch, Human/Animal Diagnostics, and Pharmaceutical industries, and positionthe Company for broader participation in proteomics research and discovery. This news release contains forward-looking statements reflecting SDI’s currentexpectations. When used in this press release, the words “anticipate”, “could”,”enable”, “estimate”, “intend”, “expect”, “believe”, “potential”, “will”,”should”, “project” “plan” and similar expressions as they relate to SDI areintended to identify said forward-looking statements. Investors are cautionedthat all forward-looking statements involve risks and uncertainties, which maycause actual results to differ from those anticipated by SDI at this time. Suchrisks and uncertainties include, without limitation, changes in demand forproducts, delays in product development, delays in market acceptance of newproducts, retention of customers and employees, adequate supply of rawmaterials, the successful integration and consolidation of the Maine productionfacilities, inability to obtain or delays in obtaining fourth party, includingAOAC, or required government approvals, the ability to meet increased marketdemand, competition, protection of intellectual property, non-infringement ofintellectual property, seasonality, and other factors more fully described inSDI’s public filings with the U.S.

Securities and Exchange Commission.Strategic Diagnostics Inc.Stan FronczkowskiChief Financial Officer302-456-6789 Contact:The Trout GroupBrian Copyright Business Wire 2009. Reports Income before Taxes of $167 Million on $296 Million in Net Revenues,Earnings Per Share of $0.30GREENWICH, Conn.–(Business Wire)–Interactive Brokers Group, Inc. (NASDAQ GS: IBKR) an automated global electronicmarket maker and broker, today reported diluted earnings per share of $0.30 forthe quarter ended March 31, 2009, compared to diluted earnings per share of$0.66 for the same period in 2008. Net revenues were $296 million and income before income taxes was $167 millionfor this quarter, compared to net revenues of $528 million and income beforeincome taxes of $374 million for the same period in 2008.

Business Highlights* 56% pre-tax profit margin for this quarter * $4.4 billion in equity. * 17% increase in customer accounts from the year ago quarter. * Cleared DARTs grew by 9% to 330,000 from the year ago quarter * 65% Market Making pre-tax margin for this quarter. * 42% Electronic Brokerage pre-tax margin for this quarter.”Our strict risk controls have not completely immunized us from the secondaryeffects of the financial crises as our results have been largely impacted bycompetitive pressures on spreads.

Exchange listed options are one of the fewlife rafts still afloat and more and more traders are trying to hold onto it,”said Thomas Peterffy, our CEO. “On the other hand, due to the popularity of ourbrokerage offering among professional traders, we were able to overcomedeteriorating industry trends in that segment of our business.” Segment OverviewMarket MakingMarket Making segment income before income taxes decreased 63% in the quarterended March 31, 2009 compared to the same period last year. Pre-tax margin was65% in this quarter, down from 80% in the same period last year. The firstquarter of 2008 was an exceptional period with high market volumes andvolatility. In this quarter, we continued to avoid counterparty risks andbalance sheet exposure from illiquid positions by making markets only inexchange traded products that are cleared through central clearing houses.Market Making options contract volume decreased by 14% in this quarter comparedto the same period last year.

Due to a change in the method we use for measuringour market making volume on the Brazilian exchange, our overall options contractvolume for 2008 was reduced by 17% for the 4th quarter and by 5% for the fullyear from previously reported numbers We initiated trading in Brazil in the 3rdquarter of 2008. The change in method was made to improve comparability ofBrazilian options contracts to volume in other markets. Electronic BrokerageElectronic Brokerage segment income before income taxes declined 21% in thequarter ended March 31, 2009 compared to the same period in 2008. Most of thisdecline was attributable to lower net interest income, adversely affected bylower benchmark interest rates. Customer account growth was healthy andcustomer`s trading activity remained robust Pre-tax margin was 42% for thequarter ended March 31, 2009.