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Ahmed Barakat
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For a few hours, earlier this week, the Tether USDT stablecoin held a higher market capitalization than Ethereum, the first time that had happened in eight years. Data across multiple trackers placed both assets in the $183-188 billion range during the crossover window, with one snapshot showing USDT at $187 billion versus ETH at $186 billion, a difference of less than $1 billion.
The reversal continued for hours, and ETH regained second place once the price stabilized. The mechanism that produced the crossover, the continued expansion of USDT supply meeting ongoing weakness in ETH prices, did not disappear when the order was reversed.
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Cryptocurrency Market Structure: Tether USDT Flippening
This was not a supply shock from Ethereum. What compresses the market cap of ETH is the price, and what increases the value of USDT is the issuance. Tether’s Q4 2025 certification showed that USDT’s price reached $187.3 billion, having added $12.4 billion in one quarter even as the cryptocurrency market was faltering.
By early 2026, USDT’s market capitalization had risen from $144.2 billion to $184 billion in twelve months, a growth of 28%, while ETH’s dollar valuation moved in the opposite direction.
In the three weeks leading up to the crossover, more than $7 billion exited the stablecoin sector while $400 billion was wiped out of the total cryptocurrency market capitalization. Ethereum’s DeFi TVL has fallen to around $36 billion. Traders weren’t abandoning stablecoins; They were hoarding liquidity while getting rid of volatile assets.
USDT’s share of the total stablecoin sector is 59%, with USDT and USDC together accounting for 82%, meaning Tether is not a marginal player in this dynamic.
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Mike McGlone’s warning: It doesn’t stop at Ethereum
Mike McGlone, chief commodities strategist at Bloomberg Intelligence, has been tracking this path longer than most. In October 2020, McGlone wrote that USDT, then priced at $16 billion versus Ethereum’s $43 billion, was… “On track to match Ethereum’s market cap in just under a year” Describe it as part of ‘Relentless trend’ Towards stablecoins gaining a major foothold.
McGlone’s updated thesis goes further. expected “”””””””””””””””””””””””” With the market cap of Tether surpassing Ethereum in 2026 and “Ultimately Bitcoin.” The extreme scenario he outlines is this: If Bitcoin falls towards $10,000, USDT, which would need to grow 7x from current levels, could eventually challenge BTC for first place.
We are not advocating the $10,000 BTC scenario here. But dismissing it outright because it seems extreme is the reason why people can’t call USDT-flips-ETH in the first place.
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ETH and USDT now: the gap, the recovery and what comes next
As of today, Ethereum has regained second place in the market cap rankings, but the margin is not comfortable. ETH will need to sustain a significant price recovery, or Tether USDT issuance will need to stabilize for the second position to feel safe again.
Nothing is guaranteed. Structural improvements in Ethereum’s technology stackincluding resistance measurement developments for ZK, offer a longer-term bullish counterpoint, but those catalysts operate on a different time frame than the near-term price weakness that enabled June. We stand.
USDT supply path shows no sign of reversal. Tether added $12.4 billion in one quarter during a bear market. In a neutral or risky environment, this pace can accelerate. When pegged to $1, the market cap and circulating supply are essentially the same number, so every new USDT minted is a direct increase in market cap, without the price fluctuations that govern ETH’s rating.
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