diff --git a/fincal/core.py b/fincal/core.py
index b1dd1c6..4027574 100644
--- a/fincal/core.py
+++ b/fincal/core.py
@@ -221,7 +221,23 @@ class Series(UserList):
         if isinstance(other, Series):
             return Series([j != other[i] for i, j in enumerate(self)], "bool")
 
-        return Series([i == other for i in self.data], "bool")
+        return Series([i != other for i in self.data], "bool")
+
+    def __and__(self, other):
+        other = self._comparison_validator(other)
+
+        if isinstance(other, Series):
+            return Series([j and other[i] for i, j in enumerate(self)], "bool")
+
+        return Series([i and other for i in self.data], "bool")
+
+    def __or__(self, other):
+        other = self._comparison_validator(other)
+
+        if isinstance(other, Series):
+            return Series([j or other[i] for i, j in enumerate(self)], "bool")
+
+        return Series([i or other for i in self.data], "bool")
 
     def _math_validator(self, other):