It Started: The US Debt Bomb Just Imploded

TL;DR

US 30-year bond yields have surpassed 5% for the first time since 2007, threatening stocks, housing, and a government debt spiral.

Key Points

• 1.Bond yields above 5% signal investors are demanding higher returns to hold US debt. When bond prices fall, yields rise — and the 30-year Treasury hitting 5% means the government, companies, and homeowners all face higher borrowing costs across the board.
• 2.Three forces are driving the yield spike simultaneously. CPI jumped 3.8% year-over-year (highest since May 2023), PPI rose 6% year-over-year (fastest since 2022), oil prices surged past $100/barrel, and the US is running ~$2 trillion annual deficits requiring constant new debt issuance.
• 3.Japan's historic yield rise removes a critical buyer of US debt. Japan holds $1.2 trillion in US Treasuries — the largest foreign holder — but with Japanese yields at all-time highs, Japan has less incentive to buy US bonds, reducing demand and pushing US yields even higher.
• 4.The government debt spiral is the most dangerous long-term risk. The US already pays over $1 trillion/year in interest; every 1% yield increase adds tens of billions more, widening the deficit, requiring more borrowing, and pushing yields higher still — a self-reinforcing loop.
• 5.Historical precedent shows 5% was a ceiling, but markets fear it becomes the floor. In 1994, the 30-year spiked from under 6% to above 8% causing $1 trillion in losses; in 2023, banking stocks fell 50%. Each time, yields stabilized — but today's structural deficits make a sustained high-rate environment more plausible.
• 6.The recommended response is to stay flexible rather than panic or overreact. Short-term Treasuries are viable for retirees or those preserving capital, but long-duration bonds carry significant price risk. Avoid excess leverage, don't sell equities in panic, and recognize that historically market bottoms form when fear peaks.