Interactive Strength Inc.'s (TRNR) ability to service its loan agreements in a rising interest rate environment, as detailed in its 2025 8-K filings, appears to be primarily influenced by the fixed-rate nature of much of its identified debt.
Based on an analysis of TRNR's 2025 SEC filings, the company has primarily utilized convertible notes for financing. These include:
- January, March, July, and August 2025 Convertible Notes: These notes carry a stated interest rate of 12% per annum, often with a 10% original issue discount, and mature between January 2028 and August 2028. For example, the January 2025 notes had an aggregate principal of $3.3 million, and the July 2025 notes were for $3.0 million.1
- Amended and Restated Senior Secured Convertible Promissory Note (originated February 2024): This note accrues interest at 2.0% per month (equivalent to 24% per annum) and matures in January 2026. As of August 2025, its principal balance was $1.9 million.1
- June 2025 Senior Secured Convertible Exchangeable Notes: These notes, totaling $55.6 million in principal as of August 2025, are convertible into common stock and exchangeable into FET tokens. While complex, the direct impact of fluctuating market interest rates on their servicing cost is not explicitly tied to a variable benchmark in the provided details.1
Because these instruments generally feature fixed interest rates, a broad rise in market interest rates would not directly increase the interest expense on TRNR's existing debt obligations. The company's debt servicing costs for these notes are largely predetermined.
However, rising interest rates could present challenges in other ways:
- Refinancing Risk: As these notes mature, TRNR would likely face higher borrowing costs if they seek to refinance at prevailing market rates, especially given the already high fixed rates (12-24% per annum) on their current convertible notes, which suggest significant perceived credit risk by lenders.
- New Financing: Any new debt TRNR seeks to raise would likely come with higher interest rates, impacting future capital allocation and profitability.
- Conversion Dynamics: While less direct, sustained higher interest rates in the broader market could theoretically influence investor sentiment and the attractiveness of converting notes into equity, depending on the terms and the company's stock performance.
It's also worth noting that TRNR is a lender in at least one instance, an Amended and Restated USD 5.6 million Loan Agreement with Sportstech Brands Holding GmbH from May 2025. For this specific asset, rising rates could potentially be beneficial if the loan has a variable interest rate, though details are not provided.2
Ultimately, TRNR's ability to service its debt will depend more on its operational cash flow and overall financial performance than on the direct impact of rising interest rates on its predominantly fixed-rate debt structure. The already high interest rates on its convertible notes indicate that financing is already a significant cost for the company.
