Bitcoin 50-day breakout / 20-day SMA exit

{
  "name": "Bitcoin 50-day breakout / 20-day SMA exit",
  "rules": [
    {
      "then": {
        "buy": {
          "percent_of_portfolio": 100
        }
      },
      "when": {
        "gt": [
          {
            "price": {}
          },
          {
            "highest": {
              "offset": 1,
              "period": 50
            }
          }
        ]
      }
    },
    {
      "then": {
        "sell": {}
      },
      "when": {
        "lt": [
          {
            "price": {}
          },
          {
            "sma": {
              "period": 20
            }
          }
        ]
      }
    }
  ],
  "universe": {
    "symbols": [
      "BTC/USD"
    ]
  },
  "description": "Buy BTC/USD on a close above the previous 50-day closing high; exit on a close below the 20-day SMA."
}