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Sisera integrates public tokenized equities on Solana (xStocks such as NVDAx, AAPLx, TSLAx, MSFTx, METAx, AMZNx, and COINx) as first-class equity instruments rather than generic SPL tokens. Every public tokenized equity is continuously benchmarked against its underlying exchange-listed share using Pyth Core equity reference feeds via Hermes (with an authenticated public equity quote fallback).

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Reference & Fair-Value Layer

Because Solana tokenized stocks trade 24/7/365 while traditional US equity exchanges operate across discrete market sessions (PRE_MARKET, REGULAR, POST_MARKET, CLOSED), price dislocations naturally emerge between the onchain token and the underlying share. Sisera computes and displays four core valuation metrics for every xStock:
Stale Reference Protection: A reference feed is never treated as an executable token price, and a stale or carried-forward reference is explicitly flagged in the UI and blocked from triggering fresh fair-value policies unless session rules allow it.

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Fair-Value Opportunity Screens

Through the /stocks terminal view and the GET /v1/rankings/fair-value endpoint, traders can rank the entire tokenized equity universe by:
  • Deepest Discount to Reference: Tokenized stocks trading significantly below their Pyth equity reference mark.
  • Highest Premium to Reference: Tokenized stocks trading above their reference mark due to onchain momentum or after-hours news.
  • Onchain Liquidity Depth: Pool depth and maximum trade size before exceeding your slippage budget.
  • Event Intensity: Equities currently experiencing high-severity corroborated SEC EDGAR filings or wire events.

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Basis & Dislocation Arbitrage

Sisera includes a dedicated Live Basis Service (GET /v1/arbitrage/basis and POST /v1/arbitrage/arm) that monitors the spread between Solana tokenized equities, reference quotes, and perpetual venues:
1

Detect Dislocation

Identify when a tokenized equity (e.g., NVDAx) diverges from its Pyth reference price beyond normal transaction and slippage costs.
2

Simulate Portfolio & Slippage Impact

Verify pool liquidity on Solana and ensure the trade size fits within your account’s concentration and mandate limits.
3

Arm Automated Basis Policy

Use POST /v1/arbitrage/arm to deploy a deterministic policy that automatically enters when the discount exceeds your target threshold (e.g., -2.5%) and exits as the spread mean-reverts toward fair value.