Orders match in a MagicBlock Ephemeral Rollup, prices come from Pyth, and your collateral never leaves Solana.
Signed silently by your trading key, matched in the rollup.
The order book is delegated to a MagicBlock Ephemeral Rollup, so orders place, cancel and fill in milliseconds, then commit back to Solana.
Stocks use Pyth-signed prices verified on Solana L1; pre-IPO markets use PreStocks token prices posted by a bounded reporter. Every fill checks a ten-second freshness rule.
USDC sits in the program vault on Solana. The rollup only holds the book and positions while it trades, and the vault reconciles to the lamport on return.