Item 7A. Quantitative and Qualitative Disclosures About Market Risk Effect of Currency Exchange Rates and Exchange Rate Risk Management We conduct business operations outside of the United States through our foreign operations. Some of our foreign operations maintain their accounting records in their local currencies. Consequently, period to period comparability of results of operations is affected by fluctuations in exchange rates. The primary currencies to which we have exposure are the Japanese yen and the New Taiwan dollar. As noted in Item 7 of our Annual Report on Form 10-K for the fiscal year ended September 30, 2011, the negative effects of foreign exchange rate changes, primarily related to the Japanese yen, accounted for a decrease in our full fiscal year 2011 gross profit percentage compared to full fiscal year 2010. From time to time we enter into forward contracts in an effort to manage foreign currency exchange exposure. However, we are unlikely to be able to hedge these exposures completely. During fiscal 2012, we recorded $6.9 million in currency translation gains, net of tax, that are included in other comprehensive income on our Consolidated Balance Sheet. These gains primarily relate to changes in the U.S. dollar value of assets and liabilities transacted in foreign currencies based on the general fluctuations of the U.S. dollar relative to the Japanese yen and the New Taiwan dollar. Approximately 13% of our revenue is transacted in currencies other than the U.S. dollar. However, we also incur expenses in foreign countries that are transacted in currencies other than the U.S. dollar, so the net exposure on the Consolidated Statement of Income is reduced. We do not currently enter into forward exchange contracts or other derivative instruments for speculative or trading purposes. Market Risk and Sensitivity Analysis Related to Foreign Exchange Rate Risk There was a significant weakening of the U.S. dollar against the Japanese yen during our fiscal years 2010 and 2011, which had some negative impact on our results of operations. We have performed a sensitivity analysis assuming a hypothetical additional 10% adverse movement in foreign exchange rates. As of September 30, 2012, the analysis demonstrated that such market movements would not have a material adverse effect on our consolidated financial position, results of operations or cash flows over a one-year period. Actual gains and losses in the future may differ materially from this analysis based on changes in the timing and amount of foreign currency rate movements and our actual exposures. Interest Rate Risk At September 30, 2012, we have $172.8 million in longterm debt at variable interest rates. Assuming a hypothetical 100 basis point increase in our current variable interest rate, our interest expense would increase by approximately $0.4 million per quarter. Market Risk Related to Investments in Auction Rate Securities At September 30, 2012, we owned two auction rate securities (ARS) with a total estimated fair value of $8.0 million ($8.2 million par value) which were classified as other long-term assets on our Consolidated Balance Sheet. Beginning in 2008, general uncertainties in the global credit markets significantly reduced liquidity in the ARS market, and this illiquidity continues. For more information on our ARS, see “Risk Factors” set forth in Part I, Item 1A, “Critical Accounting Policies and Estimates” in MD&A in Part II, Item 7, and Notes 3 and 7 of the Notes to the Consolidated Financial Statements in Part II, Item 8 of this Annual Report on Form 10-K. 32