Amend some additions from #288

user_data/strategies/futures/VolatilitySystem.py

@@ -23,14 +23,15 @@ class VolatilitySystem(IStrategy):
     Volatility System strategy.
     Based on https://www.tradingview.com/script/3hhs0XbR/
 
+    Leverage is optional but the lower the better to limit liquidations
     """
-    can_short: bool = True
+    can_short = True
 
     minimal_roi = {
         "0": 100
     }
 
-    stoploss = -0.10
+    stoploss = -1
 
     # Optimal ticker interval for the strategy
     timeframe = '1h'
@@ -131,9 +132,26 @@ class VolatilitySystem(IStrategy):
             # Only enlarge position on new signal.
             if (
                 last_candle[signal_name] == 1
-                and  previous_candle[signal_name] != 1
+                and previous_candle[signal_name] != 1
                 and trade.nr_of_successful_entries < 2
                 and trade.orders[-1].order_date_utc < prior_date
             ):
                 return trade.stake_amount
         return None
+
+    def leverage(self, pair: str, current_time: datetime, current_rate: float,
+                 proposed_leverage: float, max_leverage: float, side: str,
+                 **kwargs) -> float:
+        """
+        Customize leverage for each new trade. This method is only called in futures mode.
+
+        :param pair: Pair that's currently analyzed
+        :param current_time: datetime object, containing the current datetime
+        :param current_rate: Rate, calculated based on pricing settings in exit_pricing.
+        :param proposed_leverage: A leverage proposed by the bot.
+        :param max_leverage: Max leverage allowed on this pair
+        :param entry_tag: Optional entry_tag (buy_tag) if provided with the buy signal.
+        :param side: 'long' or 'short' - indicating the direction of the proposed trade
+        :return: A leverage amount, which is between 1.0 and max_leverage.
+        """
+        return 2.0