position.close

Close an existing prediction market position at market or limit price.

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Overview

The position.close tool exits positions to realize profits or limit losses. Supports market orders (immediate execution) and limit orders (price-specific).

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Parameters

Parameter	Type	Required	Description
position_id	string	Yes	Position identifier from position.open
order_type	string	No	"market" or "limit" (default: market)
limit_price	number	No	Limit price 0-1 (required if order_type=limit)
shares	number	No	Partial close (omit to close all shares)

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Request Examples

Close Entire Position

result = agent.run("""
  Close my presidential election position at market price
""")

Partial Close

result = agent.run("""
  Close 50% of my Fed rate position
""")

Limit Order Close

result = agent.run("""
  Close position when price reaches 0.65
""")

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Response Format

{
  "status": "closed",
  "position_id": "pos_9x8y7z...",
  "market_title": "Presidential Election 2024",
  "platform": "polymarket",
  "shares_sold": 1063.83,
  "exit_price": 0.51,
  "entry_price": 0.47,
  "realized_pnl": 42.55,
  "realized_pnl_percent": 8.51,
  "fees": 2.50,
  "net_profit": 40.05,
  "hold_duration": "3d 14h 22m",
  "transaction_hash": "0x7f8e9d..."
}

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Related Tools

• position.open - Open positions

• portfolio.get_positions - View all positions