diff --git a/freqtrade/optimize/backtesting.py b/freqtrade/optimize/backtesting.py
index c51c9f87d..daf94d224 100644
--- a/freqtrade/optimize/backtesting.py
+++ b/freqtrade/optimize/backtesting.py
@@ -344,7 +344,8 @@ class Backtesting:
                         and tmp != end_date
                         and row[BUY_IDX] == 1 and row[SELL_IDX] != 1):
                     # Enter trade
-                    stake_amount = get_stake_amount(pair, row[DATE_IDX])
+                    prev_date = data[pair][indexes[pair] - 1][DATE_IDX]
+                    stake_amount = get_stake_amount(pair, prev_date)
                     trade = Trade(
                         pair=pair,
                         open_rate=row[OPEN_IDX],