Item 3. Quantitative and Qualitative Disclosures About Market Risk
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
We are exposed to market risks in the ordinary course of our business. Market risk represents the risk of loss that may impact our financial position due to adverse changes in financial market prices and rates. Our market risk exposure is primarily the result of fluctuations in foreign currency exchange and interest rates.
Interest Rate Risk
As of October 31, 2021, we had cash, cash equivalents and investments totaling $907.9 million, which consisted primarily of bank deposits, money market funds, commercial paper, corporate notes and bonds and U.S. Treasury and government agency securities. Interest-earning instruments carry a degree of interest rate risk. Our investment portfolio is comprised of highly rated securities and limits the amount of credit exposure to any one issuer. A hypothetical 100 basis point increase in interest rates would result in an approximately $2.4 million decrease of the fair value of our investment portfolio as of October 31, 2021 . Such losses would only be realized if we sold the investments prior to maturity. We do not enter into investments for trading or speculative purposes and have not used any derivative financial instruments to manage our interest rate risk exposure.
We had no exposure to changes in interest rates from debt obligations at October 31, 2021 as our 2023 Notes and 2024 Notes were issued at fixed rates of 0.5% and 0%. The fair value of the Notes changes when the market price of our stock fluctuates or interest rates change. However, we carry the Notes at face value less unamortized discount on our balance sheet and present the fair value for required disclosure purposes only.
Foreign Currency Exchange Risk
Our reporting currency is the U.S. dollar, and the functional currency of each of our subsidiaries is either its local currency or the U.S. dollar, depending on the circumstances. The assets and liabilities of each of our subsidiaries are translated into U.S. dollars at exchange rates in effect at each balance sheet date. Operations accounts are translated using the average exchange rate for the relevant period. A strengthening or weakening of the U.S. dollar against the other currencies may negatively or positively affect our operating results as expressed in U.S. dollars. Foreign currency translation adjustments are accounted for as a component of “Accumulated other comprehensive income (loss)” within “Stockholders’ equity.” Gains or losses due to remeasurements of transactions denominated in foreign currencies are included in “ Interest income and other income (expense), net ” in our consolidated statements of operations and comprehensive loss. We have not engaged in the hedging of foreign currency transactions to date, although we may choose to do so in the future. We do not believe that an immediate 10% increase or decrease in the relative value of the U.S. dollar to other currencies would have a material effect on our operating results.
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