A look at the onchain receipts and how those resources are already at work across the Stacks ecosystem.

Last year, the Stacks community ratified SIP-031, which included a formal donation of 25,000,000 STX (or the equivalent value in other currencies) by core ecosystem entities to the Stacks Endowment. That transfer has now been completed. This post shares the onchain receipts, explains how the donation was structured, and gives a brief accounting of how those resources are already being put to work.

What SIP-031 Did

SIP-031 included a framework for voluntary contributions from existing STX holders to the Endowment's treasury. The contributors included Hiro, the Stacks Asia Foundation, Bitcoin L2 Labs, and others. The Endowment received assets from these organizations that were already in circulation and were voluntarily redirected toward ecosystem development.

The intent was to contribute to the Endowment's durable, diversified resources to fund grants, ecosystem programs, and long-term protocol stewardship, independent of any single organization or market cycle. 

The Transfer: Multiple Contributors, Multiple Assets

Contributions came from multiple organizations and were structured across several asset types to give the Endowment a more functional and diversified treasury from day one. For pricing, the Stacks Endowment used a 90-day rolling average from March 15 to May 15, 2026, averaging $0.2341 per STX, targeting $5,852,500 in total donations.

• 30 sBTC ($2,313,840) - View Transaction
• 9 sBTC ($1,063,380) - View Transaction
• 2,974,968 STX ($676,508) - View Transaction
• 4,776,990 STX ($1,295,367) - View Transaction
• 1,982,207 STX ( $529,249) - View Transaction

Each transaction is publicly verifiable on the Stacks explorer. Every asset was in circulation prior to this transfer, and was not minted as a part of the emissions change related to SIP-031.

How the Endowment Is Obligated to Spend It

The community voted on how these funds can be allocated. Per SIP-031, approved uses include: a community grants program, protocol bug bounties, DeFi liquidity programs, brand campaigns and KOL engagement, exchange listings and capital markets activities, marketing and user acquisition, and business development. The Treasury Committee provides oversight across all categories and provides regular updates. 

Already at Work

The Endowment has begun deploying capital across several mandate categories. Here's where things stand:

Stacks Grants: The flagship grants program is funding builders across AI, payments, and DeFi on Stacks. Cycle 1 is complete; Cycle 2 opens at the end of the month.

DeFi Liquidity: The Endowment has deployed liquidity directly into Stacks DeFi applications: lending protocols, stacking platforms, vaults, and decentralized exchanges, to deepen market depth for users and builders and make Stacks DeFi more functional and competitive.

TGE Support: The Endowment has provided liquidity support to select application teams working toward a token generation event, structured to help teams hit meaningful growth metrics before going public, so that TGEs are backed by real traction.

Early-Stage Investments: The Endowment has made SAFE investments into early-stage ecosystem projects, backing teams building on Stacks before they're ready for a public raise. We'll share more details on these as teams are ready to announce.

Stacks Foundry Validate: As part of the Endowment's Stacks Foundry program, Validate is the first initiative to kick off. It's aimed at early-stage builders looking to test a project with real users, priming them for the Foundry's larger startup program launching later this year.

SIP-031 was publicly committed and ratified by STX holders. The Endowment will continue to publish quarterly reports on how these resources are deployed, and we welcome questions at our Office Hours on X Spaces.