Frequently asked.
Honestly answered.
Common questions about Prism the bStock prime broker on BNB Smart Chain. No marketing fluff, just plain answers.
What is Prism?
A permissionless on-chain prime broker for tokenized US equities on BNB Smart Chain. Open a cross-margined portfolio of bStocks, borrow other bStocks, write options, split into PT/YT, sell earnings vol every primitive denominated in the same equity. Zero stablecoins anywhere in the loop.
Why no stablecoin?
Stablecoins add peg risk, oracle drift, USD-leg insolvency exposure, and an extra hop on every trade. Prism lets you transact entirely in bStocks: borrow NVDAB, repay in NVDAB; sell a TSLAB call, get paid premium in TSLAB. The dollar appears only inside the price oracle as a comparison unit, never as an asset that moves.
What chain is Prism on?
BNB Smart Chain (chain id - 56 ). Prism is BNB-Chain-native because Binance ships bStocks as BEP-8056 tokens with 1:1 mint/redeem on the exchange and deep PancakeSwap liquidity from day one.
Which bStocks are supported?
Six Binance bStocks at launch: CRCLB (Circle), MUB (Micron), NVDAB (Nvidia), SNDKB (Sandisk), TSLAB (Tesla), SPCXB (SpaceX). Adding new tickers requires governance vote (RIP).
How is cross-margin different from a normal CDP?
A normal CDP gives you one collateral and one debt. Prism's CrossMarginVault is a portfolio NFT holding any combination of collaterals AND any combination of debts; health is computed across the whole basket. Adding TSLAB collateral immediately raises borrowing power for NVDAB no extra deposits, no separate vault.
How do BEP-8056 splits and dividends interact with my position?
Transparently. Prism wraps every Chainlink feed in BEP8056PriceAdapter, which folds the uiMultiplier into every oracle read. Your collateral and debt are both priced through it, so a 2:1 split that halves the per-share price doesn't move your health factor or your option strike at all.
How are option strikes split-invariant?
Strikes are denominated in $/raw-token (not $/UI-token). The oracle returns the multiplier-adjusted price on the same scale, so spot vs strike comparison stays economically meaningful through any number of splits or dividend payouts. No other on-chain options protocol handles this.
What's PT/YT?
Pendle-style splitter adapted to BEP-8056. Deposit raw NVDAB → receive paired PT-NVDA + YT-NVDA. PT preserves UI quantity at expiry (hedge against dilution); YT captures the multiplier appreciation (dividend yield). Both ERC-20s, tradeable on PancakeSwap.
How does the EarningsVolVault make money?
It's an LP-wrapper around the bStock's OptionsAMM. Around earnings, a crank bumps the AMM's implied volatility from baseline (~60%) to pre-event (~110%). Any options sold during the 24h window pay rich premium that lands in the pool; vault shares appreciate. Post-event the crank resets IV. Vault holders never write a straddle themselves they just hold the LP exposure.
What does sPRSM earn?
Three things, simultaneously: (1) PRSM buyback 33% of every fee batch is swapped to PRSM on PancakeSwap and deposited in sPRSM, lifting share price. (2) pINDEX donation 33% mints pINDEX shares and forwards them to sPRSM. (3) Merkle drop 34% accumulates per-bStock for a weekly drop to sPRSM holders pro-rata.
Is there a Prism-issued stablecoin?
No. The protocol is a pure bStock prime broker no protocol-issued stablecoin exists. Prism holds, prices and lends bStocks themselves; any conversion to a stable is something the user does on PancakeSwap, entirely external to Prism.
Where does liquidation collateral come from in cross-margin?
Anyone calls liquidate(portfolioId, debtAsset, repayAmount, collateralAsset) on an unsafe portfolio. The liquidator pays the debt and receives the collateral worth `repayAmount × (1 + premiumBps/10000)` at the oracle price currently 5%. Partial fills allowed; the rest stays in the portfolio.
Who can deploy a new BStockLendingMarket?
The admin (single key at launch, multisig later). One market per bStock; risk params (LTV, IRM curve, reserve factor) are set per-market.
Where do I get bStocks?
Buy on PancakeSwap or directly on Binance. PancakeSwap V3 bStock/WBNB pools are the deepest secondary venue; Binance lets you mint/redeem 1:1 against the underlying share. Prism itself doesn't operate a primary issuance that's Binance's BTech entity.
How do I follow the project?
GitHub: prism-protocol. X: @prismprotocol.