Summary
Two figures that appear to contradict each other. Total stablecoin supply barely moved in the first half of 2026, ending Q1 at $309.9 billion and Q2 at $305.1 billion — a decline under 2%.
Meanwhile Visa's Allium-powered dashboard recorded $1.79 trillion in adjusted transfer volume in June, an all-time high and 125% above the same month a year earlier.
Michelle DG uses transaction-level data from the H1 2026 Swap Report by SimpleSwap, a self-custodial multi-source swap aggregator, to explain the gap — the report measures the moment a user moves from one asset to another.
The striking part is not the size of the stablecoin share but its refusal to move.
Across the half, the share of volume flowing into stablecoins on simpleswap.io never left a band between 53.90% and 60.10%, a total range of 6.2 points.
A number that will not swing, the article argues, is not measuring sentiment — it is describing a floor.
The composition supports the reading. USDT on TRON was the largest net gainer at 6.0 points, well ahead of USDT on Ethereum at 2.4.
If stablecoins were mainly a defensive position, the cheapest rail would hold no particular advantage; it does. Two of the half's four fastest-growing routes ended in a stablecoin on a low-cost chain.
The control group is inside the same report.
Across 26 weeks only two produced a net outflow from stablecoins, and one was the first week of June — which contained the deepest Bitcoin drawdown of the half.
That drawdown produced no inflow spike, where a comparable February episode had.
The practical conclusion is about which release deserves attention. Supply says how much capital sits parked in dollars; it says nothing about how hard those dollars are working.
On this evidence, settlement volume is the more informative number.
“A number that refuses to swing is not measuring sentiment. It is describing a floor.”
Key Takeaways
- Stablecoin supply fell under 2% across the half while June settlement volume hit an all-time high.
- The stablecoin share of swap volume stayed inside a 6.2-point band all half — a floor, not a sentiment signal.
- USDT on TRON was the largest net gainer at 6.0 points, ahead of USDT on Ethereum at 2.4.
- Two of the four fastest-growing routes ended in a stablecoin on a low-cost chain.
- Only two of 26 weeks saw net outflow, one of them containing the half's deepest Bitcoin drawdown.
- Settlement volume is more informative than supply for judging stablecoin activity.






