What is the Dollar Milkshake Theory?

The Dollar Milkshake Theory is a macro framework developed by Brent Johnson, founder of Santiago Capital. Johnson compares global liquidity with a single milkshake blended by central banks worldwide. In his analogy, the US dollar is the straw pulling that liquidity toward American markets whenever financial stress intensifies.

Johnson introduced the idea in late 2018, then expanded on it at the MacroVoices conference in January 2019. His argument ran against the prevailing view: heavy money printing would not necessarily sink the dollar because borrowers around the world owe dollars and must continue acquiring them to service their debts.

As US yields rise and offshore funding becomes harder to obtain, weaker economies feel the pressure first. Demand for Treasuries can also pull capital toward the United States. Global financial conditions tighten, dollar liabilities become more expensive to service, and the currency appreciates. Johnson emphasizes that this strength is relative; the dollar can outperform other currencies while still losing purchasing power.

Mainstream economists do not treat the theory as formal doctrine. Even so, several of its underlying mechanisms overlap with established research into dollar shortages, reserve-currency demand and flights to safety. Interest has increased again in 2026 as the Federal Reserve raises rates and dollar stablecoins extend the currency into new markets.

Dollar Milkshake Theory Components

Five ingredients underpin the Dollar Milkshake framework. Central-bank liquidity provides the starting point, while offshore dollar debt and interest-rate gaps shape demand. Safe-haven flows add another source of support, and the currency must ultimately remain within a tolerable trading range for the system to function.

1. Global Liquidity Creation

The milkshake represents liquidity created by central banks through years of quantitative easing, near-zero interest rates and coordinated stimulus. Johnson's argument is not simply that central banks filled the same glass. His point is that currencies do not retain equal pulling power once conditions tighten and investors become more selective.

Synchronized easing can lift asset prices across markets. When stress returns, however, capital starts searching for a destination with enough depth and liquidity to absorb large flows. Johnson argues that the United States still provides the widest straw despite political uncertainty and heavy deficits because its bond and equity markets are much larger than those of most alternatives.

2. Dollar Debt and Eurodollar Plumbing

A second pillar is the world's dependence on dollars that foreign borrowers cannot create themselves. Dollar-denominated loans, bonds and derivatives issued outside the United States generate an ongoing requirement for the currency, regardless of whether governments or investors would politically prefer a different system.

Key features of the offshore dollar system include the following:

• Offshore Debt: BIS data show dollar credit to non-banks outside the United States reached $14.7 trillion by March 2026. Roughly 30% was owed by borrowers in emerging and developing economies.
• Hidden Leverage: FX swaps and forwards create tens of trillions of dollars in additional payment obligations that remain off balance sheets, according to BIS research on missing dollar debt.
• Trading Dominance: The dollar was on one side of 89% of all currency trades in the 2025 BIS Triennial Survey, which covered a market with daily turnover of $9.6 trillion.
• Refinancing Need: Borrowers continually need dollars to refinance maturing debt, satisfy margin calls and settle invoices. That requirement becomes more acute just as funding turns scarce or expensive.
• Squeeze Dynamics: Dollar appreciation raises debt-servicing costs in local-currency terms. Borrowers then need even more dollars, creating conditions in which an orderly rise can become a self-reinforcing funding squeeze.
• Eurodollar Creation: Banks outside the United States create dollar deposits and loans beyond the Federal Reserve's direct control. Offshore supply can therefore contract quickly when lenders pull back from risk.

3. Interest-Rate Differentials and Carry Trades

Differences in interest rates help explain why capital moves toward dollar assets. When yields in the United States exceed those available in Europe or Japan, holding dollars becomes more attractive. Borrowers using cheaper currencies to fund carry trades can suffer growing losses at the same time if the dollar rises.

That mechanism strengthened again in September 2026. The Federal Reserve lifted its policy rate to 3.75–4.00%, its first increase in three years, while citing inflation still above 3%. Since then, the ten-year Treasury yield has moved beyond 5.2%, the highest level since 2007, widening the yield gap with other markets.

Johnson also describes what he calls a dual carry trade. Foreign borrowers may have one position tied to their domestic currency and another tied to the dollar, so exchange-rate movements tend to make one side work against them. Washington controls only the dollar leg, giving the United States a structural advantage when monetary conditions tighten.

4. Safe-Haven Demand and Capital Flight

During crises, money often shifts toward markets considered highly liquid and broadly accepted as collateral. Johnson's framework assumes that this reflex continues to benefit the dollar. Recent episodes, though, show that safe-haven demand is not automatic under every type of shock.

The main safe-haven channels and their limits are summarised below:

• Treasury Collateral: US government debt remains central to repo and derivatives markets. Institutions facing margin pressure therefore tend to need Treasury securities and dollar cash before most other assets.
• Reserve Inertia: Central banks held 56.7% of disclosed reserves in dollars in mid-2026, according to IMF COFER data, still well ahead of the euro and renminbi.
• Funding Stress: CEPR research finds that persistent dollar rallies occur mainly during global funding shortages. That is precisely the type of squeeze on which Johnson's framework is built.
• Conditional Haven: The pattern can break when a shock originates inside the United States. After the April 2025 tariff announcement, for example, the dollar and Treasuries fell together.
• Private Buyers: Private investors have replaced foreign central banks as the marginal buyers of Treasuries. Flows are consequently more responsive to yields, hedging costs and relative returns than they once were.
• Gold Liquidation: Turkey and Russia sold gold reserves during early 2026, showing how alternative reserve assets can still be converted into dollars when liquidity is required.

5. The Band: Why the Dollar Needs a Trading Range

In June 2026, Santiago Capital published The Band, an 83-page paper arguing that the dollar index has to remain inside a tolerable range. Johnson applies a concept familiar from oil markets: prices that fall too far can bankrupt producers, while prices that climb too high eventually destroy demand.

The paper reviews sixteen emerging markets across four decades and claims sovereign distress followed roughly three-quarters of the periods in which the dollar moved outside that range. Its conclusion runs opposite to a common fear. Johnson argues that if the dollar system ultimately fails, excessive strength is more likely to cause the break than a collapse in the currency's value.

Is the Dollar Milkshake Theory Playing Out in 2026?

The past eighteen months have tested both sides of the framework. First, the dollar experienced its steepest decline in decades. It later recovered as war, persistent inflation and a more hawkish Federal Reserve tightened global funding conditions.

The key dollar events since early 2025 unfolded as follows:

1. Tariff Shock: The dollar index dropped roughly 10% in the first half of 2025, its weakest opening half in over fifty years, as tariffs unsettled foreign investors.
2. January Low: Selling extended into January 2026. The index reached a four-year low near 95.5 while gold surged to a record above $5,600 per ounce.
3. Iran War: US and Israeli strikes on Iran in late February disrupted the Strait of Hormuz for months. Even so, the dollar gained only about 2% during the first month.
4. Summer Recovery: By late June, the dollar index had risen to a thirteen-month high near 101.8 as markets abandoned rate-cut expectations and began pricing in Federal Reserve tightening.
5. Fed Hike: On 16 September, the Federal Reserve under Chair Kevin Warsh increased rates to 3.75–4.00%, and officials signalled at least one more increase before year-end.
6. Yield Surge: Ten-year Treasury yields exceeded 5.2% in late September. At the same time, the dollar index approached 102, its strongest level in well over a year.
7. Asset Fallout: Bitcoin fell by more than half between October 2025 and mid-2026, while gold retreated toward $4,100. Both moves broadly matched the squeeze phase Johnson describes.

How Do Stablecoins Fit the Dollar Milkshake Theory?

Johnson's most significant update to the theory since 2025 involves dollar stablecoins. Speaking on Bankless in January 2026, he described stablecoins as a second straw alongside the eurodollar market, allowing anyone with a smartphone to hold dollars without first opening an American bank account.

The figures so far point in that direction. Stablecoin supply rose above $320 billion at its May 2026 peak, with about 99% denominated in dollars. Tether alone stood near $183 billion. Because issuers largely back those tokens with Treasury bills, foreign savings can become a recurring source of financing for Washington.

The GENIUS Act, signed in July 2025, formalized that relationship by requiring issuers to maintain one-to-one reserves in cash and short-dated Treasuries. BIS researchers estimate that a $3.5 billion stablecoin inflow can lower three-month bill yields by as much as four basis points, while producing little effect on longer maturities.

Johnson describes the process as re-dollarization. Households in fragile economies can choose digital dollars instead of local currencies, shifting monetary influence toward Washington in a development he compares to Bretton Woods. Critics point to another side of the mechanism: large redemptions could force rapid bill sales, while not every stablecoin carries equal risk.

What is the Endgame of the Dollar Milkshake Theory?

Permanent dollar supremacy is not the endpoint of Johnson's framework. Instead, he describes a sequence in which dollar strength damages weaker currencies first. Sovereign bond markets come under strain later, eventually pushing savers toward assets that governments cannot create at will.

The endgame typically unfolds through the following stages:

• Fiat Dominoes: Weaker currencies fail first as dollar debts become increasingly difficult to repay. Their savers and institutions move toward dollars, concentrating more global liquidity in American markets.
• Sovereign Stress: Higher yields reveal the vulnerability of heavily indebted governments. Bondholders begin demanding greater compensation, signalling the early phase of a sovereign debt crisis rather than an ordinary currency move.
• Dollar Spike: A final squeeze drives the dollar sharply higher against competing currencies. Johnson considers this the real danger because tighter dollar conditions restrict credit across multiple economies simultaneously.
• Policy Response: Authorities would probably respond with swap lines, yield management or a coordinated currency agreement. An uncontrolled dollar surge would also harm American exporters and weaken demand for Treasuries.
• Gold Wins: Johnson has said gold is the ultimate winner of the milkshake. In his view, it rises against every fiat currency once confidence in sovereign debt erodes globally.
• Dollar Last: He expects fiat currencies generally to lose value over time, but the dollar to be the last one to fall. The thesis therefore ranks currencies rather than treating the dollar as a permanent winner.

How Does the Dollar Milkshake Theory Impact Bitcoin?

Bitcoin is usually not the first asset to benefit in Johnson's sequence. During periods of tightening dollar liquidity, it tends to weaken. Its more favorable stage comes later, if investors begin losing confidence in government bonds and the currencies in which those bonds are denominated.

The most relevant Bitcoin transmission channels are listed below:

• Liquidity Squeeze: Bitcoin declined from roughly $126,000 in October 2025 to around $58,000 by mid-2026 as yields increased, placing the move among the larger drawdowns in its history.
• Liquidity Proxy: Johnson treats Bitcoin as an asset rather than money and calls it the cleanest bet on expanding global liquidity. That helps explain why it struggles when dollars become scarce.
• ETF Transmission: Spot funds now transmit macro flows directly into the market. Bitcoin ETFs lost assets during the first half of 2026 before receiving $2.65 billion in September.
• Yield Competition: A ten-year Treasury yield above 5% increases the opportunity cost of holding an asset that produces no yield. Additional Federal Reserve tightening therefore remains a clear price headwind.
• Stablecoin Rails: Dollar stablecoins introduce more users to crypto infrastructure and can widen Bitcoin's potential buyer base, even though those same tokens reinforce the currency Bitcoin was designed to compete with.
• Sovereign Hedge: If concerns about government debt intensify, Bitcoin's fixed supply gives it a potential role as non-sovereign insurance. Johnson has reportedly said a seven-figure price would not surprise him over the long term.
• Gold Competition: Central banks and more conservative allocators still favor gold during sovereign crises. Bitcoin therefore competes for whatever flows remain after bullion absorbs official demand.

How Does the Dollar Milkshake Theory Impact Gold?

Gold occupies an unusual position in the framework because Johnson does not view it simply as the dollar's opposite. He has long maintained that both assets can appreciate together. The dollar may strengthen against other paper currencies while gold rises against all of them as faith in sovereign debt deteriorates.

Recent evidence fits that relationship only unevenly. Gold reached a record above $5,600 in January 2026 before falling toward $4,100 by October as the dollar and yields moved higher. Central banks nevertheless purchased 289 tonnes in the second quarter, a record for that period, according to the World Gold Council.

That decline also demonstrated Johnson's point about liquidity. Turkey and Russia stood out as sellers in early 2026, which he interprets as reserves being converted into dollars during tighter funding conditions. Investors seeking exposure without physical vault storage can compare gold-backed tokens, which follow bullion prices on-chain and trade around the clock.

Dollar Milkshake Theory vs. De-dollarization

The Dollar Milkshake Theory and the de-dollarization narrative use many of the same facts but reach different conclusions. Johnson's framework focuses on structural dollar demand that keeps the world tied to the existing system. De-dollarization instead emphasizes sanctions, fiscal deficits and geopolitics as forces gradually directing reserve managers toward gold, local currencies and alternative payment networks.

Dollar Milkshake Theory Criticism

Most serious criticisms do not dispute the dollar's current importance in global finance. The disagreement is over how durable America's structural advantages really are, whether the framework gives enough weight to US fiscal and external vulnerabilities, and whether its timing is precise enough to be useful for portfolio decisions.

The main criticisms worth weighing include the following:

• External Deficits: Lyn Alden argues that America's large trade deficit and deeply negative net international investment position make sustained dollar strength more difficult than Johnson's framework suggests.
• Fading Haven: The IMF's April 2026 stability report describes an ongoing erosion of safe-haven properties in long-term government bonds, with equities and bonds falling together.
• 2025 Slide: The dollar declined by double digits in early 2025 even as global stress increased. Critics use that episode to argue that capital can leave the United States during periods of uncertainty.
• Reserve Drift: The dollar's share of disclosed reserves has fallen from more than 70% in 2000 to below 57%. That suggests diversification may be gradual, but it remains persistent rather than imaginary.
• Stablecoin Limits: Stablecoin issuers mainly hold short-dated bills, meaning their expansion has little direct effect on long-term yields. Heavy redemptions could also increase selling pressure in Treasury markets.
• Timing Problem: Johnson has conceded his early timeline was too aggressive. Without firm dates, the framework has difficulty telling investors when squeezes, breaks or asset rotations are likely to occur.
• Narrative Risk: Academic economists generally view the theory as an investment narrative rather than a tested model because its predictions remain flexible enough to accommodate several different outcomes.

Who is Brent Johnson?

Brent Johnson is the founder and chief executive of Santiago Capital, a wealth manager serving high-net-worth families. His financial-market career spans more than twenty-five years. It includes nine years in Credit Suisse's private client group and a later stint at BakerAvenue before he started his own firm.

Johnson publishes research through Santiago Capital's Substack and hosts the Milkshakes, Markets & Madness podcast. He is also a regular guest on MacroVoices, Bankless and Real Vision, which was co-founded by Raoul Pal. In addition, Johnson sits on the advisory board of Monetary Metals and manages a private fund focused on national defence.

Key Indicators to Watch

No single market measure captures the entire Dollar Milkshake Theory. The framework becomes more useful when several signals are viewed together, especially the dollar index, Treasury yields and indicators of offshore funding stress. Stablecoin supply and central-bank gold demand add context around how liquidity is moving between dollar assets and alternative stores of value.

Johnson has specifically pointed to the dollar index, credit spreads and the VIX, while analysts also track cross-currency basis swaps, emerging-market bond spreads and use of central-bank swap lines. Taken together, these measures show whether dollar funding is becoming more expensive, whether global risk is rising and where liquidity pressure is accumulating.

Final Thoughts

The Dollar Milkshake Theory is most useful as a sequencing framework: dollar strength comes first, sovereign stress follows, and hard assets benefit later. Developments in 2026 fit the opening phase reasonably well, including higher US rates, tighter funding conditions and weaker risk assets. The dollar's earlier decline is an important reminder that the sequence is not linear.

The theory should be treated as a lens rather than a precise forecast. Dollar index moves, Treasury yields, stablecoin supply and central-bank gold purchases can provide more useful information than any single prediction. None of those indicators replaces personal research or professional advice before allocating capital to Bitcoin, gold or currencies.