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General

Vistadex is a prediction markets aggregator on Solana. We use an RFQ (Request for Quote) auction system to find you the best prices across multiple liquidity sources when trading prediction market shares.
Vistadex operates on Solana. All trades settle on the Solana blockchain. When you log in, Privy creates a Solana wallet for you automatically.
Vistadex charges a flat 0.5% (50 basis points) fee on all trades. This fee is included in the quote you see before confirming a trade. There is no fee for redeeming winning shares after market resolution.
No. Vistadex is non-custodial. Your funds and positions are held in your own wallet on-chain. We never have access to your private keys or the ability to move your assets.

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Trading

When you request a trade, Vistadex broadcasts your order to multiple market makers. They compete to offer you the best price within a short auction window. You then see the best available quote and can choose to accept or decline.
Quotes may not be available if:
  • The market has very low liquidity
  • Your order size is too large for available liquidity
  • Market makers are not actively quoting that market
Try reducing your order size or waiting for market conditions to improve.
Quotes are typically valid for 30-60 seconds. If you don’t confirm within that window, you’ll need to request a new quote. Market prices may have changed.
Currently, Vistadex only supports market orders through RFQ. You cannot set limit orders that rest on an order book. Each trade requires requesting and accepting a quote.
There’s no strict minimum, but very small trades may not be economical after fees. The 0.5% fee plus Solana transaction costs make trades under a few dollars generally impractical.

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Markets

Vistadex supports binary prediction markets—markets with YES or NO outcomes. Categories include politics, sports, crypto, and current events. Each market has a specific question and resolution criteria.
Markets resolve based on their stated resolution criteria after the specified event occurs or deadline passes. Resolution sources vary by market but typically rely on official announcements or verified data.
In rare cases where a market cannot be resolved fairly, it may be voided. Voided markets typically return collateral to participants. Check the market’s specific terms for details.
Currently, Vistadex aggregates markets from existing prediction market protocols. Market creation depends on the underlying protocols we aggregate.

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Wallet & Funds

Vistadex currently uses email login only through Privy. Enter your email address and verify with the code sent to your inbox. Privy automatically creates and secures a Solana wallet for your account.
No. You need USDC on the Solana network specifically. USDC on Ethereum, Polygon, or other chains must be bridged to Solana before it can be used on Vistadex.
Your prediction market shares are tokens held in your Solana wallet, just like any other SPL token. You maintain full custody of your positions.

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Troubleshooting

Common reasons for failed transactions:
  • Insufficient SOL for network fees
  • Quote expired before confirmation
  • Network congestion
Check your SOL balance and try again. If problems persist, try logging out and back in.
Positions appear after the Solana transaction confirms, which usually takes a few seconds. If it’s been more than a minute:
  • Refresh the Vistadex page
  • Ensure you’re logged in with the correct email account
Once you accept a quote and confirm the transaction, that price is locked. If you see a different price, you may have:
  • Let the original quote expire and received a new one
  • Looked at the wrong market
Always review the confirmation details before signing.
Click your wallet address in the header and select “Disconnect.” This ends your session but doesn’t affect your on-chain positions or balances.