diff --git a/strategies/end_of_month.py b/strategies/end_of_month.py
index f1213a6..24ddc9b 100644
--- a/strategies/end_of_month.py
+++ b/strategies/end_of_month.py
@@ -5,4 +5,4 @@ def signals(data: DataFrame) -> Series:
     Calculate the End of Month (EOM) signal.
     Returns a Series with 'L' for long signals if the date is close to the end of the month and 'N' otherwise.
     """
-    return data['Date'].apply(lambda x: 'L' if x.day in [24, 25, 26] else 'N')
\ No newline at end of file
+    return data['Date'].apply(lambda x: 'L' if x.day in [23, 24, 25, 26, 27] else 'N')
\ No newline at end of file