Item 7A. Quantitative and Qualitative Disclosures About Market Risk
ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
The effects of potential changes in interest rates are discussed below. Our market risk discussion includes “forward-looking statements” and represents an estimate of possible changes in fair value or future earnings that would occur assuming hypothetical future movements in interest rates. Actual future results may differ materially from those presented. See “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations - Liquidity and Capital Resources” and the Notes to Consolidated Financial Statements for a description of our accounting policies and other information related to these financial instruments.
We borrow funds at a combination of fixed and variable rates. Borrowings under our revolving credit facility and bank term loans bear interest at variable rates. Our long-term debt, which consists of secured and unsecured long-term financings, typically bears interest at fixed rates. Our interest rate risk management objectives are to limit generally the impact of interest rate changes on earnings and cash flows and lower our overall borrowing costs. To achieve these objectives, from time to time we enter into interest rate hedge contracts such as collars, swaps, caps and treasury lock agreements in order to mitigate our interest rate risk with respect to existing and prospective debt instruments. We generally do not hold or issue these derivative contracts for trading or speculative purposes.
As of December 31, 2022, we had $2,277.6 million principal amount of fixed rate debt outstanding, a $256.5 million decrease as compared to December 31, 2021 (excluding $50.0 million of variable rate debt outstanding as of December 31, 2021 that had been effectively fixed by related interest rate hedge contracts). The estimated aggregate fair market value of this debt was $1,913.4 million. If interest rates had been 100 basis points higher, the aggregate fair market value of our fixed rate debt would have been $106.7 million lower. If interest rates had been 100 basis points lower, the aggregate fair market value of our fixed rate debt would have been $114.7 million higher.
As of December 31, 2022, we had $936.0 million of variable rate debt outstanding not protected by interest rate hedge contracts, a $716.0 million increase as compared to December 31, 2021. If the weighted average interest rate on this variable rate debt had been 100 basis points higher or lower, the annual interest expense as of December 31, 2022 would increase or decrease by $9.4 million.
As of December 31, 2021, we had $50.0 million of variable rate debt outstanding with $50.0 million of related floating-to-fixed interest rate swaps. These swaps effectively fixed the underlying one-month LIBOR rate at a weighted average rate of 1.693%. We had no outstanding interest rate hedge contracts as of December 31, 2022.
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
See page 52 for Index to Consolidated Financial Statements of Highwoods Properties, Inc. and Highwoods Realty Limited Partnership.
ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE
None.
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