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Merge pull request #5108 from rokups/rk/pessimistic-trailing-stoploss

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Implement most pessimistic handling of trailing stoploss.
This commit is contained in:
Matthias
2021-06-17 18:41:00 +01:00
committed by GitHub
parent c4bc47e6e7 b38ab84a13
commit 8bb464bd64
4 changed files with 74 additions and 8 deletions
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16
freqtrade/optimize/backtesting.py
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@@ -225,6 +225,22 @@ class Backtesting:
# sell at open price.
return sell_row[OPEN_IDX]
# Special case: trailing triggers within same candle as trade opened. Assume most
# pessimistic price movement, which is moving just enough to arm stoploss and
# immediately going down to stop price.
if (sell.sell_type == SellType.TRAILING_STOP_LOSS and trade_dur == 0
and self.strategy.trailing_stop_positive):
if self.strategy.trailing_only_offset_is_reached:
# Worst case: price reaches stop_positive_offset and dives down.
stop_rate = (sell_row[OPEN_IDX] *
(1 + abs(self.strategy.trailing_stop_positive_offset) -
abs(self.strategy.trailing_stop_positive)))
else:
# Worst case: price ticks tiny bit above open and dives down.
stop_rate = sell_row[OPEN_IDX] * (1 - abs(self.strategy.trailing_stop_positive))
assert stop_rate < sell_row[HIGH_IDX]
return stop_rate
# Set close_rate to stoploss
return trade.stop_loss
elif sell.sell_type == (SellType.ROI):