diff --git a/.gitignore b/.gitignore
index 9a382b0..8603b8d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -167,4 +167,6 @@ output
 # PositionBT
 output/
 
-.ruff_cache/
\ No newline at end of file
+.ruff_cache/
+
+src/benchmark
\ No newline at end of file
diff --git a/data/btc_ohlcv_1m.parquet b/data/btc_ohlcv_1m.parquet
new file mode 100644
index 0000000..029d06a
Binary files /dev/null and b/data/btc_ohlcv_1m.parquet differ
diff --git a/src/positionbt/utils/validation.py b/src/positionbt/utils/validation.py
index 68cad7e..8fe67e2 100644
--- a/src/positionbt/utils/validation.py
+++ b/src/positionbt/utils/validation.py
@@ -156,10 +156,7 @@ def validate_time_alignment(close_df: pl.DataFrame, position_df: pl.DataFrame) -
         ValidationError: If timestamps are not aligned
 
     """
-    close_times = set(close_df["time"])
-    position_times = set(position_df["time"])
-
-    if close_times != position_times:
+    if not close_df["time"].equals(position_df["time"]):
         raise ValidationError("Close and position data must have identical timestamps")