Anthropic's Claude AI has mapped out a scenario in which Ethereum could overtake Bitcoin to become the leading digital asset in the coming months — the long-awaited “Flippening,” in which ETH's market capitalization surpasses BTC's. The debate has run since Ethereum's early years, coming closest to reality in mid-2017 when ETH's market capitalization reached roughly 80% of Bitcoin's before the gap widened again.

According to an analysis published by 99Bitcoins, the AI model identified a specific catalyst that could send Ethereum on a parabolic run at Bitcoin's expense. Ahead of the day's Federal Open Market Committee (FOMC) meeting — the Federal Reserve's rate-setting body — ETH was trading around $2,350 with a market capitalization of $287 billion, while BTC stood at $80,800 for a total valuation of $1.62 trillion.

(Source: Claude)

The Hypothetical Catalyst: Tokenized Treasuries Settling on Ethereum

The scenario asks readers to imagine the Treasury Department working with the Depository Trust & Clearing Corporation (DTCC) — the entity that settles the bulk of US securities transactions — and a coalition of the biggest banks announcing a pilot that grows into something much larger. New Treasury issuance — a market north of $28 trillion — would settle on the Ethereum mainnet through tokenized securities.

Under that arrangement, every settlement, collateral transfer, and repo trade would burn ETH for fees — the same fee-burn mechanism Ethereum activated with its EIP-1559 upgrade in August 2021 — and primary dealers would need ETH on hand and staked to run validators for institutional-grade finality. ETH would stop being a speculative tech token and become the fuel for the world's most important bond market.

The report itself flags the scenario as unlikely but not impossible, noting that tokenization pilots already exist and that this projection is simply the maximalist version of that trend. Those pilots are tangible: tokenized US Treasury products — BlackRock's BUIDL fund, launched on Ethereum in March 2024, among them — already hold billions of dollars on public blockchains, a real but sliver-sized footprint next to the $28-trillion market this scenario imagines moving on-chain. How fast that footprint grows is the observable thread to follow while the scenario's timeline plays out.

What the Chart Says

Ethereum is trading around $2,340, sitting almost exactly on its realized price of $2,310 — the average on-chain cost basis — and the 200-day EMA at $2,315, a combination the analysis describes as a classic washed-out floor.

That is a long way down from the all-time high of $4,946.05, and sentiment is poor: October has seen $1.26 billion in spot ETH ETF outflows, near a monthly record — a notable swing for products that only debuted in the U.S. in July 2024.

Momentum, however, is stalling. The price is hugging the lower Bollinger Band (the outer edge of a volatility channel) near $2,302, well below the 20-day SMA midline at $2,420 — the kind of territory where bases form. Supply is tightening as well, with exchange balances down 169,770 ETH on October 23 alone.

The analysis then measures the swing from the $2,310 floor to the $4,946 high — a range of roughly $2,636 — and projects Fibonacci extensions from it, ratio-based targets derived from the size of a prior swing. The 1.618 extension lands at about $6,575, the 2.618 at about $9,211, and the 3.618 at about $11,847. The 4.236 extension, the traditional “mania” level, comes in at about $13,477. With a circulating supply of 122.17 million ETH, that final level implies a market capitalization of roughly $1.65 trillion — about where Bitcoin's market cap sits today. The Flippening trigger, in other words, is also a Fibonacci level.

(Source: TradingView)

How the Flippening Plays Out

The Flippening — the moment Ethereum's market cap passes Bitcoin's — is a game of ratios. With about 20.1 million BTC and 122.17 million ETH in circulation, ETH needs to trade at roughly 16.5% of Bitcoin's price to pull even. Bitcoin is near $80,840 and ETH around $2,350, so the ETH/BTC ratio stands at only about 0.029. Under the scenario, it would have to rise roughly 5.7x, to 0.165 or higher.

That sounds absurd, the analysis concedes, but the hypothetical catalyst attacks the ratio from several angles at once:

• Bitcoin has no equivalent demand driver. People hold BTC as a store of value. ETH, by contrast, becomes a consumable input to the bond market: every settlement burns some of it through the fee-burn mechanism, and every dealer desk has to source it.
• The float shrinks while demand surges. Validators lock up ETH, exchange balances are already falling, and institutions buying for operational use are not the kind of holders that sell into a rally.
• ETH is productive collateral. Staked ETH earns yield while BTC does not, so a bond desk choosing a reserve asset for on-chain settlement would pick the one that pays.
• Capital rotation feeds on itself. ETH's market cap today is only about $288 billion versus Bitcoin's roughly $1.6 trillion, and pricing in that $1.3 trillion gap does not require $1.3 trillion of net buying. On a thin float, a fraction of that capital reprices the entire supply. As ETH/BTC climbs, ratio traders pile in, and within a few weeks the ratio can travel from 0.029 to 0.165.

There is one catch: the math works only if Bitcoin holds roughly steady while ETH runs. If BTC rallies alongside it, Ethereum has to run even further to catch up.

The Projected Endgame

In the scenario's conclusion, Ethereum trades at $13,500 on January 1, 2027 — a gain of more than 475% from today's price — putting ETH's market cap at roughly $1.65 trillion, just edging past Bitcoin's approximately $1.6 trillion. The bond-market announcement lands in the fourth quarter and breaks the base at $2,310, after which ETH moves through the $4,946 high as institutions scramble for the fuel their new settlement rails run on. Staked and locked supply shrinks the float everyone else fights over, and a year-end close at the 4.236 extension would be the moment the Flippening stops being a meme and becomes the headline: ETH, not BTC, as the world's biggest digital asset.

The projection is an AI-generated scenario as reported by 99Bitcoins.