diff --git a/pandas_ta/volume/ad.py b/pandas_ta/volume/ad.py
index 148f98e..ddacc55 100644
--- a/pandas_ta/volume/ad.py
+++ b/pandas_ta/volume/ad.py
@@ -32,7 +32,7 @@ def ad(high, low, close, volume, open_=None, offset=None, **kwargs):
         ad.fillna(method=kwargs['fill_method'], inplace=True)
 
     # Name and Categorize it
-    ad.name = f"AD"
+    ad.name = "AD" if open_ is None else "ADo"
     ad.category = 'volume'
 
     return ad
diff --git a/setup.py b/setup.py
index 5e024ce..63dbb36 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@ long_description = "An easy to use Python 3 Pandas Extension with 80+ Technical
 setup(
     name ="pandas_ta",
     packages =['pandas_ta', 'pandas_ta.momentum', 'pandas_ta.overlap', 'pandas_ta.performance', 'pandas_ta.statistics', 'pandas_ta.trend', 'pandas_ta.volatility', 'pandas_ta.volume'],
-    version ="0.1.36b",
+    version ="0.1.37b",
     description =long_description,
     long_description =long_description,
     author ="Kevin Johnson",
diff --git a/tests/test_indicator_volume.py b/tests/test_indicator_volume.py
index 27b12ca..f22aad4 100644
--- a/tests/test_indicator_volume.py
+++ b/tests/test_indicator_volume.py
@@ -49,6 +49,21 @@ class TestVolume(TestCase):
             except Exception as ex:
                 error_analysis(result, CORRELATION, ex)
 
+    def test_ad_open(self):
+        result = pandas_ta.ad(self.high, self.low, self.close, self.volume_, self.open)
+        self.assertIsInstance(result, Series)
+        self.assertEqual(result.name, 'ADo')
+
+        try:
+            expected = tal.AD(self.high, self.low, self.close, self.volume_)
+            pdt.assert_series_equal(result, expected, check_names=False)
+        except AssertionError as ae:
+            try:
+                corr = pandas_ta.utils.df_error_analysis(result, expected, col=CORRELATION)
+                self.assertGreater(corr, CORRELATION_THRESHOLD)
+            except Exception as ex:
+                error_analysis(result, CORRELATION, ex)
+
     def test_adosc(self):
         result = pandas_ta.adosc(self.high, self.low, self.close, self.volume_)
         self.assertIsInstance(result, Series)
diff --git a/tests/test_indicator_volume_ext.py b/tests/test_indicator_volume_ext.py
index bc26ab1..da7efac 100644
--- a/tests/test_indicator_volume_ext.py
+++ b/tests/test_indicator_volume_ext.py
@@ -10,10 +10,12 @@ class TestVolumeExtension(TestCase):
     @classmethod
     def setUpClass(cls):
         cls.data = sample_data
+        cls.open = cls.data['open']
 
     @classmethod
     def tearDownClass(cls):
         del cls.data
+        del cls.open
 
 
     def setUp(self): pass
@@ -25,6 +27,11 @@ class TestVolumeExtension(TestCase):
         self.assertIsInstance(self.data, DataFrame)
         self.assertEqual(self.data.columns[-1], 'AD')
 
+    def test_ad_open_ext(self):
+        self.data.ta.ad(open_=self.open, append=True)
+        self.assertIsInstance(self.data, DataFrame)
+        self.assertEqual(self.data.columns[-1], 'ADo')
+
     def test_adosc_ext(self):
         self.data.ta.adosc(append=True)
         self.assertIsInstance(self.data, DataFrame)