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Introduction Institutional yield strategies usually come with institutional minimums. Solstice starts at $1. What Is Solstice Solstice is the yield layer of Solana. We do for yield what AWS did for compute: abstract the complexity. Everything routes through two primitives: USX - the largest Solana-native settlement asset. Overcollateralized, verified continuously through attestations , and the single entry and exit point for every strategy. YieldVault - the framework that brings each strategy onchain. Mint a yield token with USX - redeem back to USX plus accrued yield. The Yield Shelf Each vault token is a different yield driver, deliberately uncorrelated with the others: eUSX - delta-neutral strategies. Funding-driven yield with a multi-year track record and zero negative months. aiUSX - AI infrastructure financing through institutional partners: compute, inference, and training capacity credit - coming soon. strcUSX - live. Income linked to Strategy’s Nasdaq-listed STRC preferred stock, the first STRC product on Solana. Two tokens, so you pick your risk. tbUSX - programmable exposure to sovereign rates and treasury infrastructure - coming soon. Hold one, or pair them: the drivers move independently, so the tokens work as diversifiers, not substitutes. Yields are variable and not guaranteed. See Risk Disclosures for more information. The Protocol Layer SLX - the protocol's alignment & governance token stSLX - staked SLX with a dynamic, cycle-based yield Where Next New here? Get Started . Each token has its own page under Solstice for Users , and builders can go straight to the Integration Guide . Next Get Started with USX and YieldVault ## /overview/readme/get-started Get Started with USX and YieldVault Two ways in: permissionless through the app, or direct minting for institutions. Permissioned Access Direct minting and redemption of USX is available to KYC’d institutional partners who deposit approved collateral into Solstice. See Contact & Links for more information. Permissionless Access No KYC, no minimums. Swap into USX On Solana, swap USDC, USDG, or USDT to USX in the Solstice app. USX is overcollateralized and designed to track the U.S. dollar. Coming from another chain? The cross-chain swap moves assets from any supported chain to Solana in one flow: pick the source chain and token, pick USX on Solana, and send it straight to your wallet. Lock USX into YieldVault Pick a YieldVault strategy and receive its yield token. You can swap and lock in one transaction. Put your tokens to work Lend on money markets, provide liquidity, or trade yield on Solana's top protocols. Previous Introduction Next Get Started with SLX and stSLX ## /overview/readme/get-started-with-slx-and-stslx Get Started with SLX and stSLX SLX is the protocol's alignment & governance token. Stake it to receive stSLX and participate in the protocol's access layer. Get SLX SLX trades on major centralized exchanges and DEXs. Live markets and venues are listed on CoinGecko and CoinMarketCap . Only use contract addresses published through official Solstice channels. Verify the contract address on docs.solstice.finance before any transaction. Stake SLX Lock SLX in the app and receive stSLX. The yield is dynamic, set by a per-cycle formula; the current formula, cycle dates, and estimated APY are shown in the app. Rewards accrue into the stSLX exchange rate, so there's nothing to claim. Unlock stSLX Select the amount of stSLX to unlock back to SLX. Unlocking starts a 7-day cooldown. Withdraw SLX When the cooldown completes, your SLX is available to withdraw. Use stSLX stSLX is composable while it accrues: trade fixed or variable staking yield through its PT and YT markets on Exponent . Previous Get Started with USX and YieldVault Next strcUSX - Just Launched ## /overview/strcusx-just-launched strcUSX - Just Launched strcUSX is live. Put in USX (or USDC, which converts in the app) and pick senior or junior. Both sit on income linked to Strategy’s preferred stock, STRC. You don’t own the shares. You hold a Solana token that pays back in USX. This is optional. Holding USX is not the same thing. Senior or junior Senior (SR-strcUSX) is STRC yield without sitting in the daily price. Target 7% . You get the coupon path. You do not mark the share up and down every day. Junior (JR-strcUSX) is closer to leveraged STRC. Target about 20% when the vault is about twice senior. Higher yield, no funding fee, and no personal liquidation price like a perp. Junior can still lose value if senior leaves and the vault sells STRC below what it paid. If STRC’s price drops and senior stays, the price you see on junior does not fall. If STRC’s price goes up, that extra value stays as a cushion for later. It does not bump junior’s price. If everyone stays, both sides keep earning. The product is built to sit through STRC swings and still pay people. Most of the vault is STRC. A smaller slice sits in short-term US Treasuries so there is cash for people who want out, without always selling STRC. Start here Open strcUSX in the app . Live balances are on the Proof of Solvency dashboard . How it works Senior and junior Deposits and exits Yield Risks FAQ Those rates are targets, not promises. You can lose money, especially on junior, if senior leaves and the vault sells STRC below its average buy. Read the risks before you mint. Previous Get Started with SLX and stSLX Next Yield Sources ## /overview/yield-sources Yield Sources Solstice yield comes from strategies that capture market structure, not price speculation. Every yield-bearing token sits inside the same YieldVault framework: a licensed manager runs the off-chain portfolio, and Solstice standardizes the onchain token, the reserve transparency, and the distribution path. Each vault is chosen so its yield driver moves independently of the others. Funding rates, corporate dividends, AI infrastructure credit, and sovereign rates don't rise and fall together. Live performance, reserves, and attestations are on the transparency dashboard . Delta-Neutral ( eUSX ) - LIVE The flagship strategy, live since January 2023: private and institutional at first, managing $200m+, permissionless through YieldVault since September 2025, with 100% positive months since inception. Four engines fill one price-neutral book. Allocation shifts between them with market conditions. Engine Description Funding Rate Arbitrage Capturing basis spreads across perpetual futures markets Hedged Staking Generating staking yields while hedging price exposure Tokenized T-Bills Earning yield from short-term treasury bills Institutional Yield Diversified institutional yield generated through trusted counterparties A portion of backing assets is allocated to select institutional yield opportunities, generating stable, diversified returns. All allocations operate within a strict counterparty and risk management framework. strcUSX - LIVE Income linked to Strategy’s Nasdaq-listed preferred stock (STRC), split into SR-strcUSX (senior: STRC yield without the daily price, 7% target) and JR-strcUSX (junior: closer to leveraged STRC, about 20% when the vault is about twice senior). No funding fee and no personal liquidation price on junior. Junior’s price can fall if senior leaves and the vault sells STRC below what it paid. This yield comes from preferred dividends, not crypto funding, so it pairs with eUSX. It does not sit in USX reserves. Start at strcUSX - Just Launched . Full write-up: strcUSX and Risks . AI Infrastructure Financing (aiUSX) - coming soon Exposure to AI infrastructure credit through institutional partners: compute, inference, and training capacity financing. The demand behind it is compute that has to get built, designed to hold when crypto funding compresses. Sovereign Rates (tbUSX) - coming soon Exposure to sovereign-rate and treasury infrastructure strategies through institutional partners, engineered to live inside DeFi venues from day one: composable as collateral, as a quote asset, and as a base layer for structured products. Past performance does not guarantee future results. Yields are variable and not guaranteed. See Risk Disclosures for more information. Previous strcUSX - Just Launched Next Ambassador Program ## /overview/ambassador-program Ambassador Program Solstice grows through the people who explain it. The Ambassador Program rewards that work in SLX : education, content, events, and onboarding. Each cycle allocates a share of total SLX supply across three tiers with rising rewards and responsibilities. Tiers Explorer (Entry) Requirement Detail Holdings 250+ USX or eUSX (PT, YT, and LP positions count) Application Google Form submission Explorers share content, answer community questions, use referral codes to bring in new users, and participate in ambassador calls. Explorers get access to private Telegram channels, a personal referral code, early announcements, and SLX rewards at the 1x base allocation. Navigator (Mid-Tier) Requirement Detail Holdings 1,000+ USX or eUSX (PT, YT, and LP positions count) Contribution 10+ verified new users or 5 quality educational pieces Promotion Application reviewed by team Navigators create original content (threads, videos, tutorials, translations), host or co-host community calls and Spaces, provide product feedback, and mentor Explorers. Navigators get everything from Explorer, plus a Flares multiplier, ambassador merchandise, recognition on official channels, priority feature access, and SLX rewards at 4x the base allocation. See Flares for multiplier details. Captain (Top-Tier) Requirement Detail Holdings 5,000+ USX or eUSX, or significant contribution (PT, YT, and LP positions count) Contribution 50+ users onboarded or community events hosted Promotion Application reviewed by team Captains lead regional or topic-specific communities, organize meetups, hackathons, or Spaces, support protocol integrations, provide strategic feedback, and represent Solstice at events. Captains get everything from Navigator, plus an enhanced Flares multiplier, USX or eUSX stipends for events and content production, direct team access, early product access, personalized gear, consideration for paid roles, and SLX rewards at 18x the base allocation. Stipends are discretionary and subject to change. Rewards Overview Reward Explorer Navigator Captain Private channels Yes Yes Yes Referral code Yes Yes Yes Flares multiplier -- Yes Enhanced SLX rewards 1x 4x 18x Merchandise -- Yes Yes USX/eUSX stipends -- -- Yes Direct team access -- -- Yes Paid role consideration -- -- Yes Program KPIs Cycle SLX allocation is a ceiling, not a guarantee. How much of the pool pays out depends on program performance against these KPIs: KPI What counts New user deposits First-time deposits attributed to an ambassador referral code Referred TVL Net TVL brought in through ambassador referrals Content quality still matters for tier promotion and recognition. The two KPIs above are what gate how much of the cycle pool is approved. There are no fixed individual payout formulas tied to these KPIs. They set the program-level allocation. Tier requirements still govern promotion between Explorer, Navigator, and Captain. SLX Allocation Cycle 2 (current) runs across May, June, and July 2026 and allocates up to 0.25% of total SLX supply, dependent on the Program KPIs above. The allocation is split evenly across the three months and weighted toward higher tiers. Tier Weight Pool Share Max % of Supply Explorer 1x ~24% 0.06% Navigator 4x ~32% 0.08% Captain 18x ~44% 0.11% Cycle 1 ran across February, March, and April 2026 and allocated 0.5% of total SLX supply, back-loaded across the three months (20% / 30% / 50%). No Captains qualified in Cycle 1, so those rewards weren't distributed. Rewards are discretionary and subject to change based on program performance and participation. Flares are reward points only. No cash value, non-transferable. All rewards are subject to the Terms & Conditions and the applicable Campaign Terms. Solstice reserves the right to modify campaign mechanics at any time. Previous Yield Sources Next Resources ## /overview/resources Resources Two documents cover the protocol end to end: the whitepaper for architecture, the litepaper for SLX. Whitepaper updated September 2026 Solstice Whitepaper 2.1.pdf Download Full protocol architecture and technical specification. Entity structure, the YieldVault primitive, proof of solvency , audit cadence, product stack across USX, eUSX, strcUSX, future tokens, Solstice Nexus, Yield-as-a-Service, and the governance model. Litepaper updated September 2026 SLX Litepaper 1.1.pdf Download The SLX product and tokenomics summary: executive narrative, product stack, governance framework, and FAQ. The shortest path to SLX's role inside the protocol. For protocol mechanics, browse Solstice for Users . For integration specs, see Solstice for Builders . These documents reflect the protocol as of May 2026, with the September 2026 release schedule update included. Roadmap items, governance phases, and product timelines are forward-looking and subject to the disclosures inside each document. Previous Ambassador Program Next USX ## /solstice-for-users/usx USX Everything in Solstice starts and ends in USX: the overcollateralized settlement asset at the base of the protocol, the single entry point into every YieldVault strategy , and the single exit back out. It's Solana-native and designed to track the U.S. dollar. The reserve backing it is verified through Proof of Solvency , independent third-party verification by Accountable. Minting & Redemption KYC'd institutional partners mint USX by depositing USDC, USDG, or USDT into the USX Program, and redeem USX for USDG as the primary redemption asset. Everyone else swaps into USX through the Solstice app , or on Solana DEXs including Raydium & Orca . Minting and redemption carry no spread; Solstice doesn't profit from issuance or redemption. Collateral Flow & Custody Collateral lands in Solana-based vaults managed by Solstice A portion moves to the custodians Copper and Ceffu for off-exchange settlement On redemption, collateral moves back onchain Token Design Property Description Type Overcollateralized settlement asset, designed to track the U.S. dollar Contract Address 6FrrzDk5mQARGc1TDYoyVnSyRdds1t4PbtohCD6p3tgG Backing Audited cash, tokenized Treasuries, and delta-neutral hedged positions in major digital assets, verified by Accountable Minting Deterministic via Solstice interface Burning Upon redemption or vault withdrawal Supply Model Demand-driven, no emissions or inflation Utility Capital unit for strategies, liquidity, and routing Transferable Yes Governance No Previous Resources Next YieldVault ## /solstice-for-users/yieldvault YieldVault Lock USX , receive the strategy's yield token, redeem back to USX plus accrued yield. YieldVault is the framework that gives every strategy the same shape: one contract surface for minting, accounting, risk controls, and reporting. How It Works Lock USX in a strategy's vault Receive its yield token: your proportional claim on the underlying portfolio The Harvester program periodically distributes rewards, increasing the token's value relative to USX Vault tokens are non-rebasing: your balance stays the same while the exchange rate accrues, so there's nothing to claim. Redeem through the app for the full redemption value, or swap out instantly on Solana DEXs at market price. One Contract Surface Surface Specification Mint & Redeem Denominated in USX both ways; single entry and single exit per vault token Strategy Accounting NAV, performance attribution, and fee routing handled at the vault level Risk Segmentation Capacity caps, capital controls, and pause triggers per vault Reporting Reserve and performance dashboards published continuously per vault The Shelf Token Yield Driver Status eUSX Delta-neutral funding capture Live aiUSX AI infrastructure credit Coming soon strcUSX STRC preferred-share dividends Live tbUSX Sovereign rates and treasury infrastructure Coming soon Each driver moves independently of the others, so vault tokens pair as diversifiers rather than substitutes. Strategy detail and live performance are in Yield Sources . Previous USX Next eUSX ## /solstice-for-users/yieldvault/eusx eUSX eUSX is the yield token of the delta-neutral strategy - the flagship of the shelf. Lock USX in YieldVault , receive eUSX, and rewards accrue into its exchange rate. Strategy detail, engines, and track record are in Yield Sources . Token Design Property Description Type Yield-bearing token Contract Address 3ThdFZQKM6kRyVGLG48kaPg5TRMhYMKY1iCRa9xop1WC Backing Proportional share of USX in the YieldVault Minting Issued when USX is locked into YieldVault Burning Burned when eUSX is unlocked for USX Yield Source Delta-neutral strategies Cooldown 7 days standard; 24 hours for $1,000 or less Transferable Yes, fully composable across Solana DeFi Governance No Exit Paths Unlock through the app for the full redemption value; cooldown terms are in the table above. Or swap out instantly - eUSX is a fully composable SPL token on Solana DEXs - at a price that may differ from the redemption value. While it accrues, put eUSX to work across Solana DeFi through the app's Deep DeFi page: money markets, liquidity pools, and PT and YT yield markets. Past performance does not guarantee future results. All investments carry risk of loss. Performance data is provided for informational purposes and does not constitute investment advice. Previous YieldVault Next aiUSX ## /solstice-for-users/yieldvault/aiusx aiUSX aiUSX is designed to carry AI infrastructure financing onchain - exposure to compute, inference, and training capacity credit through institutional partners. The demand behind the driver is compute buildout, uncorrelated with crypto funding rates, so the strategy is designed to hold when funding compresses and pairs with eUSX as a diversifier. Like every vault token, it ships through YieldVault : mint with USX, hold to accrue, redeem back to USX plus accrued yield. The strategy sits on the shelf in Yield Sources . aiUSX is in active design, subject to product, custody, and regulatory readiness. Token specifications follow as launch approaches. Previous eUSX Next strcUSX ## /solstice-for-users/yieldvault/strcusx strcUSX strcUSX is a Solana yield product that gives structured access to income linked to Strategy Inc. preferred shares (STRC). You deposit USX (or convert from USDC in the app) and receive one of two tokens: SR-strcUSX (senior): STRC yield without the daily price ride. 7% target. JR-strcUSX (junior): closer to leveraged STRC. About 20% when the vault is about twice senior. No funding fee. No personal liquidation price. Junior’s price can fall if senior leaves and the vault sells STRC below what it paid. You do not own STRC shares. You hold a vault token that settles back to USX. Proof of Solvency for Solstice products is published by Accountable.Capital . strcUSX is separate from USX. Minting strcUSX is optional. STRC-linked risk stays inside this vault and does not sit in USX reserves. Holding USX is not the same as holding strcUSX. Live parameters, balances, and coverage publish in the app and on the Proof of Solvency dashboard . Read this first. STRC is unsecured preferred stock of Strategy Inc. It is not backed by Strategy’s bitcoin. The $100 stated amount is used for dividend math. It is not a right to exit at $100. STRC can trade well below that for a long time. The dividend can keep paying while the price is down. Sell