> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vistadex.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Buying Positions

> How to buy YES or NO shares in prediction markets on Vistadex

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

<Steps>
  <Step title="Find a Market">
    Browse or search for a prediction market you want to trade. Each market has a clear question and resolution criteria.
  </Step>

  <Step title="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.
  </Step>

  <Step title="Enter Amount">
    Specify how much USDC you want to spend. The interface shows how many shares you'll receive at the current quoted price.
  </Step>

  <Step title="Request Quote">
    Click to request a quote. Our auction finds you the best available price.
  </Step>

  <Step title="Review Quote">
    Review the quote showing:

    * Number of shares you'll receive
    * Price per share
    * Total cost
  </Step>

  <Step title="Confirm Trade">
    If the quote looks good, confirm the trade.
  </Step>

  <Step title="Trade Confirms">
    Once confirmed, the shares appear in your portfolio.
  </Step>
</Steps>

## Understanding Share Prices

Share prices reflect the market's implied probability of an outcome:

| Share Price | Implied Probability |
| ----------- | ------------------- |
| \$0.10      | 10% chance          |
| \$0.25      | 25% chance          |
| \$0.50      | 50% chance          |
| \$0.75      | 75% chance          |
| \$0.90      | 90% chance          |

If you buy YES shares at \$0.30 and the event happens, each share pays out \$1.00.

## Example Trade

<Tabs>
  <Tab title="Buying YES">
    **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 profit

    **If NO wins:** Your shares are worth \$0 → \$100 loss
  </Tab>

  <Tab title="Buying NO">
    **Market:** "Will Event X happen by December 31?"

    * Current NO price: \$0.25
    * You spend: \$100 USDC
    * Shares received: 400 NO shares

    **If NO wins:** Your 400 shares pay out \$400 → \$300 profit

    **If YES wins:** Your shares are worth \$0 → \$100 loss
  </Tab>
</Tabs>

## 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