diff --git a/tensortrade/instruments/quantity.py b/tensortrade/instruments/quantity.py
index 101614e80..14634280b 100644
--- a/tensortrade/instruments/quantity.py
+++ b/tensortrade/instruments/quantity.py
@@ -107,7 +107,6 @@ def _bool_operation(left: Union['Quantity', float, int],
                         right: Union['Quantity', float, int],
                         bool_op: operator) -> bool:
         left, right = Quantity.validate(left, right)
-
         boolean = bool_op(left.size, right.size)
 
         if not isinstance(boolean, bool):
@@ -120,7 +119,6 @@ def _math_operation(left: Union['Quantity', float, int],
                         right: Union['Quantity', float, int],
                         op: operator) -> 'Quantity':
         left, right = Quantity.validate(left, right)
-
         size = op(left._size, right._size)
         return Quantity(left.instrument, size, left.path_id)
 
diff --git a/tensortrade/wallets/portfolio.py b/tensortrade/wallets/portfolio.py
index a5e8db7d0..cc017cb73 100644
--- a/tensortrade/wallets/portfolio.py
+++ b/tensortrade/wallets/portfolio.py
@@ -226,7 +226,7 @@ def on_next(self, data: dict):
         performance_data = {k: data[k] for k in self._keys}
         performance_data['base_symbol'] = self.base_instrument.symbol
         performance_step = pd.DataFrame(performance_data, index=index)
-        
+
         net_worth = data['net_worth']
 
         if self._performance is None:
@@ -245,3 +245,6 @@ def reset(self):
         self._initial_net_worth = None
         self._net_worth = None
         self._performance = None
+
+        for wallet in self._wallets.values():
+            wallet.reset()
diff --git a/tensortrade/wallets/wallet.py b/tensortrade/wallets/wallet.py
index ea4a7f651..5c6a4c064 100644
--- a/tensortrade/wallets/wallet.py
+++ b/tensortrade/wallets/wallet.py
@@ -24,6 +24,7 @@ class Wallet(Identifiable):
 
     def __init__(self, exchange: 'Exchange', quantity: 'Quantity'):
         self._exchange = exchange
+        self._initial_size = quantity.size
         self._instrument = quantity.instrument
         self._balance = quantity
         self._locked = {}
@@ -89,6 +90,10 @@ def deallocate(self, path_id: str):
             if quantity is not None:
                 self += quantity.size * self.instrument
 
+    def reset(self):
+        self._balance = Quantity(self._instrument, self._initial_size)
+        self._locked = {}
+
     def __iadd__(self, quantity: 'Quantity') -> 'Wallet':
         if quantity.is_locked:
             if quantity.path_id not in self.locked.keys():