Sui funnels stablecoin yield into daily SUI buybacks
DeFi & Yields ·
The Sui Foundation is converting yield earned on stablecoin float into recurring open-market purchases of SUI, with 291.2K SUI bought back year to date.
Under the mechanism, the network earns revenue from two sources: gas fees paid by users and gross yield generated on the stablecoin float held on Sui. That yield is then used by the Sui Foundation to buy SUI on the open market each day, a structure one poster compared to Tether or Circle redirecting T-bill yield on their reserves into a native token buyback, calling the design "massive for $SUI."
Total revenue year to date stands at 2.1 million dollars, including estimated month-to-date rewards, with 30-day revenue at 286.6K dollars. The stablecoin float generating that yield is 443.3 million dollars, spread across 3.6 million holder addresses. Daily buyback figures show the scale of individual purchases: on July 30, 2026, the Foundation bought 8.6K SUI for 6.1K dollars at a price of 0.70 dollars, following similar purchases on July 29 (8.7K SUI, 6.0K dollars), July 28 (8.7K SUI, 6.0K dollars) and July 26 (16.9K SUI, 12.1K dollars). On February 12, 2026, revenue included 3.0K dollars in stablecoin yield against 34.0K dollars in gas fees, for a 37.0K dollar total that day.
The bought-back SUI is not burned. Instead it is redistributed to network participants — including defi, validators and other ecosystem partners — and reinvested into the ecosystem, which the Foundation frames as growing stablecoin float further and driving more yield to fund additional repurchases. Total supply is unchanged by the process, since tokens are recirculated rather than removed.
The buyback mechanism sits alongside two protocol-level changes that lowered network costs: a roughly 5x cut to the reference gas price on April 24, 2026, and the introduction of gasless transfers for supported stablecoins in Sui v1.72 on May 20, 2026. Combined with zero fees on peer-to-peer stablecoin transactions, the changes are designed to expand stablecoin usage on Sui while directing the resulting yield back into SUI demand.
What remains unclear is how buyback volumes will scale as stablecoin float grows, and whether the reinvestment-and-redistribution loop can sustain meaningfully larger purchases than the current daily range of roughly 5K to 16K dollars. Also unresolved is how the mechanism performs during periods of stablecoin float contraction or falling SUI prices, given that buyback size is tied directly to yield revenue rather than a fixed allocation.