CALIX, INC 10-Q

ITEM 3. Quantitative and Qualitative Disclosures About Market Risk Interest Rate Risk The primary objectives of our investment activity are to preserve principal, provide liquidity and maximize income without significantly increasing risk. By policy, we do not enter into investments for trading or speculative purposes. As of September 27, 2025, we had cash, cash equivalents and marketable securities of $339.6 million, which was held primarily in cash, money market funds and highly liquid marketable securities such as U.S. government agency securities and commercial paper. Due to the nature of these money market funds and highly liquid marketable securities, we believe that we do not have any material exposure to changes in the fair value of our cash equivalents and marketable securities because of changes in interest rates. Foreign Currency Exchange Risk Our primary foreign currency exposures are described below. Economic Exposure The direct effect of foreign currency fluctuations on our sales and expenses has not been material because our sales and expenses are primarily denominated in U.S. dollars, or USD. However, we are indirectly exposed to changes in foreign currency exchange rates to the extent of our use of foreign CMs whom we pay in USD. Increases in the local currency rates of these vendors in relation to USD could cause an increase in the price of products that we purchase. Additionally, if the USD strengthens relative to other currencies, such strengthening could have an indirect effect on our sales to the extent it raises the cost of our products to non-U.S. customers and thereby reduces demand. A weaker USD could have the opposite effect. The precise indirect effect of currency fluctuations is difficult to measure or predict because our sales are influenced by many factors in addition to the impact of such currency fluctuations. Translation Exposure Our sales contracts are primarily denominated in USD and, therefore, most of our revenue is not subject to foreign currency risk. We are directly exposed to changes in foreign exchange rates to the extent such changes affect our expenses related to our foreign assets and liabilities with our subsidiaries in China, India, the United Kingdom and Ireland, whose functional currencies are Chinese Renminbi, or RMB, Indian Rupee, or INR, British Pounds Sterling, or GBP, and Euro, or EUR. Our operating expenses are incurred primarily in the United States and Canada (Canadian Dollar, or CAD), in China associated with our research and development operations that are maintained there, in India for our center of excellence and in the United Kingdom for our international sales and marketing activities. Our operating expenses are generally denominated in the functional currencies of our subsidiaries in which the operations are located. The percentages of our operating expenses denominated in the following currencies for the indicated periods were as follows: 25 Table of Contents Nine Months Ended September 27, 2025 September 28, 2024 USD 84 % 86 % RMB 6 % 6 % CAD 4 % 3 % INR 4 % 4 % GBP 1 % 1 % EUR 1 % — % 100 % 100 % If USD had appreciated or depreciated by 10%, relative to RMB, INR, CAD, GBP and EUR, our operating expenses for the first nine months of 2025 would have decreased or increased by approximately $6.4 million, or approximately 2%. Foreign exchange rate fluctuations may also adversely impact our financial position as the assets and liabilities of our foreign operations are translated into USD in preparing our Condensed Consolidated Balance Sheets. The effect of foreign exchange rate fluctuations on our consolidated financial position for the nine months ended September 27, 2025 was a net translation gain of $0.1 million. This gain is recognized as an adjustment to stockholders’ equity through “Accumulated other comprehensive loss.” Transaction Exposure We have certain assets and liabilities, primarily accounts receivable and accounts payable (including inter-company transactions) that are denominated in currencies other than the relevant entity’s functional currency. In certain circumstances, changes in the functional currency value of these assets and liabilities create fluctuations in our reported consolidated financial position, cash flows and results of operations. Periodically, we use derivatives to hedge against fluctuations in foreign exchange rates. We do not enter into derivatives for speculative or trading purposes. We use foreign currency forward contracts to mitigate variability in gains and losses generated from the re-measurement of certain assets denominated in foreign currencies. These foreign exchange forward contracts typically have maturities of approximately one to two months. As of September 27, 2025, we had no forward contracts outstanding. Transaction gains and losses on these foreign currency denominated assets and liabilities are recognized each period within “Other expense, net” in our Condensed Consolidated Statements of Comprehensive Income (Loss). During the nine months ended September 27, 2025, the net loss we recognized related to these foreign currency denominated assets and liabilities was approximately $0.5 million.