Wash Trading

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Overview

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How It Works

1. Setup: Trader controls multiple wallets
2. Execution: Buys token from one wallet, sells from another
3. Appearance: Creates fake volume and price movements
4. Deception: Attracts legitimate traders who see “activity”

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Detection Indicators

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Common Patterns

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Volume Inflation

• Sudden spikes in volume with no corresponding news
• Volume/market cap ratios far above industry norms
• Trading activity concentrated among few wallets

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Price Manipulation

• Prices held artificially stable despite low real liquidity
• Coordinated buy/sell walls
• Circular transaction patterns

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Why It Matters

• Fake liquidity: Real traders may not be able to exit positions
• Price discovery failure: True market value is obscured
• Pump and dump setup: Often precedes major sell-offs
• Regulatory risk: Increasingly targeted by enforcement

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API Example

curl -X GET "https://api.webacy.com/addresses/0x123...?chain=eth" \
  -H "x-api-key: YOUR_API_KEY"

{
  "overallRisk": 78.5,
  "issues": [
    {
      "tag": "wash_trading",
      "severity": "high",
      "description": "Address has engaged in wash trading"
    }
  ]
}

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Protection Strategies

1. Check holder analysis - Use the Holder Analysis endpoint to identify concentration
2. Verify volume sources - Cross-reference volume across multiple DEXs
3. Look for organic growth - Legitimate projects show gradual, sustainable growth
4. Monitor transaction patterns - Circular transactions are a red flag