Debt / Liquidity Monitor
The refinancing stress signal
Total federal debt divided by net liquidity. A rising ratio means debt is growing faster than the liquidity available to finance it — the refinancing wall becomes binding.
What makes up net liquidity
The Fed balance sheet supplies base liquidity, but money parked in the reverse repo facility or the Treasury General Account is removed from circulation. Net liquidity subtracts both.
How to read this
Falling ratio = liquidity expanding relative to debt. The system has breathing room. Risk assets typically perform well.
Net Liquidity subtracts RRP and TGA from the Fed balance sheet — money parked in these facilities is removed from circulation and doesn't count as available liquidity. This is why M2 alone is insufficient.
Why the Volcker response is mathematically impossible
During the ZIRP era (2009-2021), the Treasury locked in trillions at coupons of 0.5-2.5%. That cheap debt is now maturing and being replaced at 4%+. By 2030, the entire stock will have repriced — and $10T+ in new deficit spending will have piled on top.
Cheap debt vanishes, expensive debt stacks
Each year, maturing ZIRP-era debt is refinanced at today's rates — and $2T+ in new deficit spending piles on top. The fading teal is cheap debt disappearing. The red and gold are its expensive replacements.
$9.2 trillion matured in fiscal 2025 alone — nearly a quarter of all outstanding debt — and a further $9 trillion matures in 2026. The weighted average maturity of US Treasuries is roughly 72 months, meaning the entire debt stock effectively reprices within a single business cycle.
Yellen's Treasury compounded the problem by skewing issuance toward T-bills during 2023-24, pulling effective duration even shorter. The maturity wall isn't just large — it's front-loaded.
Blended interest rate convergence
As cheap debt rolls off, the blended average interest rate on all US debt converges upward toward the market rate. This mechanism is irreversible unless market rates fall dramatically.
The average interest rate on all US interest-bearing debt was 3.4% as of October 2025 — already up from 1.6% in late 2021. It will continue climbing even if the Fed cuts rates, because the stock of cheap debt is shrinking faster than new rates can fall.
The debt killed the Volcker option
Volcker raised rates to 20% when debt-to-GDP was 30%. The US could absorb the pain. At today's debt levels, even 8% sustained rates would trigger a sovereign funding crisis.
| 1980 | 2025 | |
|---|---|---|
| Debt-to-GDP | ~30% | ~125% |
| Total federal debt | ~$900B | ~$36T |
| Interest at 10% | ~$90B | ~$3.6T |
| Total tax revenue | ~$517B | ~$4.5T |
| Interest / revenue at 10% | ~17% | ~80% |
In 1980, you could absorb 20% rates. In 2025, you cannot sustain even 8%. Anyone still waiting for a Volcker moment is waiting for something that is now mathematically impossible.
Drag the slider to break the sovereign
See what happens to annual interest expense at different refunding rates. When the red line crosses the tax revenue threshold, the government borrows just to pay interest.
The mechanism feeds on itself
At $36T+ debt levels, a Volcker-style response wouldn't stabilise the system — it would accelerate the spiral.
Both are bullish for hard assets
Since raising rates high enough to crush inflation would simultaneously destroy the sovereign borrower, the Fed is left with two viable paths.
Hold nominal rates below inflation for an extended period. Real rates go deeply negative. The real value of the debt erodes. Savers are quietly expropriated. The post-WWII playbook.
The Fed becomes the buyer of last resort for Treasuries. QE taken to its permanent, structural conclusion. The central bank prints reserves to absorb what the market won't buy.
Both paths share a common feature: the systematic destruction of purchasing power in the currency unit. The Fed isn't choosing between inflation and deflation. It's choosing between controlled debasement and uncontrolled debasement.
Rising ratio = debt growing faster than liquidity. The refinancing wall becomes binding — the Fed must eventually expand its balance sheet or risk a funding crisis. This is Howell's core signal.