diff --git a/bfxbot/bfxwrapper.py b/bfxbot/bfxwrapper.py
index d58d1f6..1f1d373 100644
--- a/bfxbot/bfxwrapper.py
+++ b/bfxbot/bfxwrapper.py
@@ -26,6 +26,13 @@ class BfxWrapper(BfxRest):
 
         return await super().get_active_orders(symbol)
 
+    @retry()
+    async def get_trades(self, symbol, start, end):
+        if isinstance(symbol, Symbol):
+            symbol = str(symbol)
+
+        return await super().get_trades(symbol, start, end)
+
     async def get_current_prices(self, symbol) -> (float, float, float):
         if isinstance(symbol, Symbol):
             symbol = str(symbol)
@@ -51,3 +58,8 @@ class BfxWrapper(BfxRest):
                 balance += current_price * w.balance
 
         return balance
+
+    async def get_balance_delta(self, symbol: Symbol, start: float, end: float):
+        trades = await self.get_trades(symbol, start, end)
+
+        return sum([t.amount for t in trades])