Item 3. Quantitative and Qualitative Disclosures About Market Risk
ITEM 3 — QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
Market risk is the risk of loss arising from adverse changes in market rates and prices, such as interest rates, foreign currency exchange rates and commodity prices. Our primary exposures to market risk are interest rate risk associated with our long-term debt and foreign currency exchange rate risk associated with our operations outside the United States, which we may manage through the use of futures, options, caps, forward contracts and similar instruments. We do not hold or issue financial instruments for trading purposes and do not enter into derivative transactions that would be considered speculative positions.
As of June 30, 2023, the estimated fair value of our long-term debt was approximately $13.92 billion, compared to its contractual value of $14.79 billion. The estimated fair value of our long-term debt is based on recent trades, if available, and indicative pricing from market information (level 2 inputs). A hypothetical 100 basis point change in market rates would cause the fair value of our long-term debt to change by $336 million. A hypothetical 100 basis point change in Secured Overnight Financing Rate (“SOFR”), Hong Kong Inter-Bank Offered Rate (“HIBOR”) and Swap Offer Rate (“SOR”) would cause our annual interest cost on our long-term debt to change by approximately $46 million.
Foreign currency transaction losses were $24 million for the six months ended June 30, 2023, primarily due to U.S. dollar denominated debt issued by SCL. We may be vulnerable to changes in the U.S. dollar/SGD and U.S. dollar/pataca exchange rates. Based on balances as of June 30, 2023, a hypothetical 10% weakening of the U.S. dollar/SGD exchange rate would cause a foreign currency transaction loss of approximately $23 million , and a hypothetical 1% weakening of the U.S. dollar/pataca exchange rate would cause a foreign currency transaction loss of approximately $61 million (net of the impact from the foreign currency swap agreements). The pataca is pegged to the Hong Kong dollar and the Hong Kong dollar is pegged to the U.S. dollar (within a narrow range). We maintain a significant amount of our operating funds in the same currencies in which we have obligations thereby reducing our exposure to currency fluctuations.
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