curl --request GET \
  --url https://api.coinbase.com/api/v3/brokerage/intx/positions/{portfolio_uuid}/{symbol}

{
  "position": {
    "product_id": "<string>",
    "product_uuid": "<string>",
    "portfolio_uuid": "<string>",
    "symbol": "<string>",
    "vwap": {
      "value": "<string>",
      "currency": "<string>"
    },
    "entry_vwap": {
      "value": "<string>",
      "currency": "<string>"
    },
    "position_side": "<any>",
    "margin_type": "<any>",
    "net_size": "<string>",
    "buy_order_size": "<string>",
    "sell_order_size": "<string>",
    "im_contribution": "<string>",
    "unrealized_pnl": {
      "value": "<string>",
      "currency": "<string>"
    },
    "mark_price": {
      "value": "<string>",
      "currency": "<string>"
    },
    "liquidation_price": {
      "value": "<string>",
      "currency": "<string>"
    },
    "leverage": "<string>",
    "im_notional": {
      "value": "<string>",
      "currency": "<string>"
    },
    "mm_notional": {
      "value": "<string>",
      "currency": "<string>"
    },
    "position_notional": {
      "value": "<string>",
      "currency": "<string>"
    },
    "aggregated_pnl": {
      "value": "<string>",
      "currency": "<string>"
    }
  }
}