The true destructive power of high interest rates lies in their duration. A significant volume of debt issued at 2%-3% during 2020-2021 is now facing pressure to refinance at costs of 6%-8%, with the impact expected to concentrate and erupt within 12 to 18 months. The U.S. housing market will bear the brunt, while commercial real estate, highly leveraged corporations, and private equity-backed companies are also in precarious positions. If high rates persist for more than six months, the market's margin for error will be completely exhausted.
The yield on the U.S. 10-year Treasury note has reached its highest level since 2007, intensifying market anxiety. However, several industry veterans point out that the real risk is not the yield breaking through 5% on any given day, but rather that the longer high interest rates persist, the more difficult it becomes to resolve the accumulated systemic pressures.
On September 16, CNBC reported that Jack Ablin, Chief Investment Officer at Cresset Capital, described this risk mechanism straightforwardly: "5% itself will not knock anything down on the day it arrives; it will cause real damage 12 to 18 months later, when refinancing must occur at new rates." He emphasized that the danger lies not in the yield levels seen today, but in the fact that the longer we remain at these levels, the more difficult the situation may become.
The report noted that Billy Leung, Investment Strategist at Global X ETFs, attributed the core of the problem to refinancing pressure: a large amount of debt issued at 2%-3% interest rates between 2020 and 2021 now needs to be rolled over at costs of 6%-8%, which will directly impact cash flows, asset valuations, and credit quality. Currently, the housing market is expected to bear the brunt, while highly leveraged firms, commercial real estate borrowers, and private equity-backed companies also face significant pressure.
Housing Market: The First to Feel the Impact
The housing market is listed by several strategists as one of the most vulnerable sectors. As long-term Treasury yields surge, 30-year mortgage rates are approaching 8%. Ablin pointed out that existing homeowners holding mortgages at around 3% have little incentive to sell, meaning the market faces not a wave of mass defaults, but a deep freeze in transaction volumes—homebuilders, mortgage originators, title insurance companies, real estate agents, and home furnishings retailers will all be affected.
Molly Brooks, U.S. Rates Strategist at TD Securities, also identifies housing as the sector most sensitive to rising long-end yields, as long-term Treasury yields transmit directly to mortgage rates.
In comparison, the impact on the banking sector may be lagged. Brooks noted that in the early stages of a steepening yield curve, the bank model of funding at short-term rates and lending at long-term rates actually helps support net interest margins. However, Leung warned that if high borrowing costs persist long enough to deteriorate the credit quality of real estate or corporate borrowers, banks will face greater pressure in the later stages.
Refinancing Pressure: The Maturity Wall Has Been Pushed Back, But Not Eliminated
The deeper risk in the credit market stems from the wave of debt maturities left over from the zero-interest-rate era. Many corporations extended their debt maturities in 2020 and 2021, or further deferred repayments thereafter, temporarily avoiding the impact of high interest rates. However, Ablin explicitly stated: "The maturity wall has been moved, not removed."
Ablin stated that he is closely monitoring the interest coverage ratio of leveraged loans, as well as stress signals in the private credit market—particularly whether the proportion of borrowers paying interest with new debt rather than cash is rising.
Leung highlighted several particularly vulnerable groups: leveraged loan borrowers, issuers of speculative-grade credit bonds, private equity-backed companies, and commercial real estate borrowers.
The pressure on commercial real estate is particularly pronounced. Ablin pointed out that office properties were already a vulnerable segment, and rising interest rates will further exacerbate their difficulties. He specifically mentioned that multifamily housing projects financed with floating-rate bridge loans in 2021 and 2022—when borrowing costs were extremely low and rent growth expectations were optimistic—are now facing a double squeeze.
Duration is more critical than absolute levels
Strategists generally believe that the key question for the market is not whether the 10-year yield breaks through 5%, but how long it will remain at that level. Leung said:
"I believe duration is more important than specific yield levels. The market can typically digest a brief breach of 5%, but if it persists for six to twelve months or longer, it becomes difficult to ignore."
Ablin also noted that if yields remain at 5% for two to three quarters, refinancing pressures will become increasingly unavoidable; meanwhile, a rapid surge in yields poses another risk—disrupting hedging positions and forcing investors to hastily adjust their portfolios.
Brooks further pointed out that the composition of rising yields is equally crucial. If the term premium climbs significantly while economic growth expectations do not improve correspondingly, it implies that borrowing costs are rising unilaterally without stronger economic activity to support them, thereby sharply narrowing the buffer space.
Leung's assessment is:
"At present, I still tend to view 5% primarily as a valuation adjustment rather than an immediate systemic threat. However, the margin for error is narrowing."