Interest Rate Fluctuation Risk Our exposure to interest rate risk relates to the interest income generated by cash, cash equivalents and short-term investments. The primary objective of our investment policy is to preserve principal while maximizing income without significantly increasing risk. We believe that an increase or decrease in interest rates of 100 basis points on our cash and cash equivalents balance would increase or decrease our interest income by approximately $20.0 million. 34 Table of Contents Foreign Currency Exchange Rate Risk Most of our revenue is generated within the United States and as such we have minimal foreign currency risk related to our revenue. Our foreign currency risk primarily relates to operating expenses, cash balances, and lease liabilities denominated in currencies other than U.S. dollars, primarily British pounds and Euros. Our results of current and future operations and cash flows are, therefore, subject to fluctuations due to changes in foreign currency exchange rates. We have experienced and will continue to experience fluctuations in our net income (loss) as a result of transaction gains or losses related to revaluing monetary asset and liability balances that are denominated in currencies other than the functional currency of the entities in which they are recorded. We have not entered into any derivatives or other financial instruments in an attempt to hedge our foreign currency exchange risk, but we may do so in the future.