Where to trade SMR on-chain: OKX, xStocks (Solana), Ondo Global Markets. Live prices, the gap to the real SMR stock and funding on every venue come from one x402 call each.
| Venue | Symbol | Instrument | Tradable now | Market id / mint | Last mark |
|---|---|---|---|---|---|
| OKX | SMR-USDT-SWAP | perp | yes | ||
| xStocks (Solana) | SMRx | token | yes | XsrwdnwLHjVnyy7fgE2Pdwjp3czEm73jPjkSC5xzUBw | |
| Ondo Global Markets | SMRon | token | yes | bGy2covWNf5qyzoNdV1pWXuLmFi6Dq927o7JXzWondo |
SMR on every venue vs the stock: mark, mid, best bid/ask, gap %, spread, freshness.
GET https://perp-gap-api.perpgap.workers.dev/quote?ticker=SMR
SMR funding APR per venue, next funding time, cheapest venue to long or short, 7-day history.
GET https://perp-gap-api.perpgap.workers.dev/funding?ticker=SMR&history=7d
Every SMR market as JSON, grouped.
GET https://perp-gap-api.perpgap.workers.dev/catalog?ticker=SMR&group=1
Agent prompts: "What's the best price for SMR across Hyperliquid, Aster, Lighter and OKX right now?" · "Is the SMR perp trading above the stock?" · "Which venue has the cheapest SMR funding to go long?"
← All stock perps and tokenized stocks · Funding rates
A stock perpetual future (stock perp) is a crypto-margined contract that tracks a stock price with no expiry. Longs and shorts exchange funding so the perp stays near the stock. Hyperliquid trade.xyz (HIP-3), Aster, Lighter and OKX list stock perps that trade 24/7, including weekends.
A tokenized stock (Backed xStocks on Solana, Ondo Global Markets tokens on Ethereum, BNB Chain and Solana) is a token backed by real shares, so holding it is like holding the stock. A stock perp is a derivative with leverage and funding payments and no share backing.
Use the free GET /catalog?ticker=NVDA&group=1 call, or open /stock-perps/NVDA. Most large US names are listed on trade.xyz, Aster, Lighter and OKX, and have an xStock and an Ondo token.
Stock exchanges are closed but perps keep trading, so the perp price moves on news while the reference price is frozen at the last close or after-hours print. GET /quote shows which reference was used and how stale it is.
Each venue's rate is converted to an hourly rate (trade.xyz and Lighter pay hourly, Aster usually every 8 hours) and multiplied by 8,760 hours. Positive means longs pay shorts. GET /funding returns every venue side by side with the next funding time.
With x402: call the endpoint, get HTTP 402 with payment requirements, pay in USDC on Base or Solana with any x402 client, and retry. No account or API key. The catalog is free; quote costs $0.01 and funding $0.02.