diff --git a/freqtrade/edge/edge_positioning.py b/freqtrade/edge/edge_positioning.py
index 9843d4e83..3213c1ef8 100644
--- a/freqtrade/edge/edge_positioning.py
+++ b/freqtrade/edge/edge_positioning.py
@@ -278,8 +278,8 @@ class Edge:
         #
         # Removing Pumps
         if self.edge_config.get('remove_pumps', False):
-            results = results.groupby(['pair', 'stoploss']).apply(
-                lambda x: x[x['profit_abs'] < 2 * x['profit_abs'].std() + x['profit_abs'].mean()])
+            results = results[results['profit_abs'] < 2 * results['profit_abs'].std()
+                              + results['profit_abs'].mean()]
         ##########################################################################
 
         # Removing trades having a duration more than X minutes (set in config)
diff --git a/tests/edge/test_edge.py b/tests/edge/test_edge.py
index cd5f623e3..969b0c44b 100644
--- a/tests/edge/test_edge.py
+++ b/tests/edge/test_edge.py
@@ -403,3 +403,98 @@ def test_process_expectancy(mocker, edge_conf, fee, risk_reward_ratio, expectanc
     final = edge._process_expectancy(trades_df)
     assert len(final) == 0
     assert isinstance(final, dict)
+
+
+def test_process_expectancy_remove_pumps(mocker, edge_conf, fee,):
+    edge_conf['edge']['min_trade_number'] = 2
+    edge_conf['edge']['remove_pumps'] = True
+    freqtrade = get_patched_freqtradebot(mocker, edge_conf)
+
+    freqtrade.exchange.get_fee = fee
+    edge = Edge(edge_conf, freqtrade.exchange, freqtrade.strategy)
+
+    trades = [
+        {'pair': 'TEST/BTC',
+         'stoploss': -0.9,
+         'profit_percent': '',
+         'profit_abs': '',
+         'open_time': np.datetime64('2018-10-03T00:05:00.000000000'),
+         'close_time': np.datetime64('2018-10-03T00:10:00.000000000'),
+         'open_index': 1,
+         'close_index': 1,
+         'trade_duration': '',
+         'open_rate': 17,
+         'close_rate': 15,
+         'exit_type': 'sell_signal'},
+
+        {'pair': 'TEST/BTC',
+         'stoploss': -0.9,
+         'profit_percent': '',
+         'profit_abs': '',
+         'open_time': np.datetime64('2018-10-03T00:20:00.000000000'),
+         'close_time': np.datetime64('2018-10-03T00:25:00.000000000'),
+         'open_index': 4,
+         'close_index': 4,
+         'trade_duration': '',
+         'open_rate': 20,
+         'close_rate': 10,
+         'exit_type': 'sell_signal'},
+        {'pair': 'TEST/BTC',
+         'stoploss': -0.9,
+         'profit_percent': '',
+         'profit_abs': '',
+         'open_time': np.datetime64('2018-10-03T00:20:00.000000000'),
+         'close_time': np.datetime64('2018-10-03T00:25:00.000000000'),
+         'open_index': 4,
+         'close_index': 4,
+         'trade_duration': '',
+         'open_rate': 20,
+         'close_rate': 10,
+         'exit_type': 'sell_signal'},
+        {'pair': 'TEST/BTC',
+         'stoploss': -0.9,
+         'profit_percent': '',
+         'profit_abs': '',
+         'open_time': np.datetime64('2018-10-03T00:20:00.000000000'),
+         'close_time': np.datetime64('2018-10-03T00:25:00.000000000'),
+         'open_index': 4,
+         'close_index': 4,
+         'trade_duration': '',
+         'open_rate': 20,
+         'close_rate': 10,
+         'exit_type': 'sell_signal'},
+        {'pair': 'TEST/BTC',
+         'stoploss': -0.9,
+         'profit_percent': '',
+         'profit_abs': '',
+         'open_time': np.datetime64('2018-10-03T00:20:00.000000000'),
+         'close_time': np.datetime64('2018-10-03T00:25:00.000000000'),
+         'open_index': 4,
+         'close_index': 4,
+         'trade_duration': '',
+         'open_rate': 20,
+         'close_rate': 10,
+         'exit_type': 'sell_signal'},
+
+        {'pair': 'TEST/BTC',
+         'stoploss': -0.9,
+         'profit_percent': '',
+         'profit_abs': '',
+         'open_time': np.datetime64('2018-10-03T00:30:00.000000000'),
+         'close_time': np.datetime64('2018-10-03T00:40:00.000000000'),
+         'open_index': 6,
+         'close_index': 7,
+         'trade_duration': '',
+         'open_rate': 26,
+         'close_rate': 134,
+         'exit_type': 'sell_signal'}
+    ]
+
+    trades_df = DataFrame(trades)
+    trades_df = edge._fill_calculable_fields(trades_df)
+    final = edge._process_expectancy(trades_df)
+
+    assert 'TEST/BTC' in final
+    assert final['TEST/BTC'].stoploss == -0.9
+    assert final['TEST/BTC'].nb_trades == len(trades_df) - 1
+    assert round(final['TEST/BTC'].winrate, 10) == 0.0