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Buying a position means purchasing shares that pay out if a specific outcome occurs. On Vistadex, you can buy YES shares (betting an event will happen) or NO shares (betting it won’t).

Buying a Position

1

Find a Market

Browse or search for a prediction market you want to trade. Each market has a clear question and resolution criteria.
2

Select Your Side

Choose whether you want to buy YES or NO shares. YES shares pay $1 if the event happens; NO shares pay $1 if it doesn’t.
3

Enter Amount

Specify how much USDC you want to spend. The interface shows how many shares you’ll receive at the current quoted price.
4

Request Quote

Click to request a quote. Our auction finds you the best available price.
5

Review Quote

Review the quote showing:
  • Number of shares you’ll receive
  • Price per share
  • Total cost
6

Confirm Trade

If the quote looks good, confirm the trade.
7

Trade Confirms

Once confirmed, the shares appear in your portfolio.

Understanding Share Prices

Share prices reflect the market’s implied probability of an outcome:
Share PriceImplied Probability
$0.1010% chance
$0.2525% chance
$0.5050% chance
$0.7575% chance
$0.9090% chance
If you buy YES shares at $0.30 and the event happens, each share pays out $1.00.

Example Trade

Market: “Will Event X happen by December 31?”
  • Current YES price: $0.50
  • You spend: $100 USDC
  • Shares received: 200 YES shares
If YES wins: Your 200 shares pay out $200 → $100 profitIf NO wins: Your shares are worth $0 → $100 loss

After You Buy

Your new position appears in your portfolio immediately after the transaction confirms. From there you can:
  • Hold: Wait for market resolution
  • Sell: Exit your position early if you change your mind or want to lock in profit/loss
  • Buy more: Increase your position if your conviction grows