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grid2: add doc comment for gridNumber
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@ -35,9 +35,13 @@ exchangeStrategies:
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- on: binance
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grid2:
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symbol: BTCUSDT
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upperPrice: 50_000.0
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lowerPrice: 28_000.0
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gridNumber: 1000
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upperPrice: 50_000.0
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## gridNumber is the total orders between the upper price and the lower price
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## gridSpread = (upperPrice - lowerPrice) / gridNumber
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## Make sure your gridNumber satisfy this: MIN(gridSpread/lowerPrice, gridSpread/upperPrice) > (makerFeeRate * 2)
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gridNumber: 150
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## compound is used for buying more inventory when the profit is made by the filled SELL order.
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## when compound is disabled, fixed quantity is used for each grid order.
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@ -131,12 +131,15 @@ func (s *Strategy) Validate() error {
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}
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if !s.ProfitSpread.IsZero() {
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percent := s.ProfitSpread.Div(s.LowerPrice)
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// the min fee rate from 2 maker/taker orders (with 0.1 rate for profit)
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gridFeeRate := s.FeeRate.Mul(fixedpoint.NewFromFloat(2.01))
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// the min fee rate from 2 maker/taker orders
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minProfitSpread := s.FeeRate.Mul(fixedpoint.NewFromInt(2))
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if percent.Compare(minProfitSpread) < 0 {
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return fmt.Errorf("profitSpread %f %s is too small, less than the fee rate: %s", s.ProfitSpread.Float64(), percent.Percentage(), s.FeeRate.Percentage())
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if s.ProfitSpread.Div(s.LowerPrice).Compare(gridFeeRate) < 0 {
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return fmt.Errorf("profitSpread %f %s is too small for lower price, less than the fee rate: %s", s.ProfitSpread.Float64(), s.ProfitSpread.Div(s.LowerPrice).Percentage(), s.FeeRate.Percentage())
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}
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if s.ProfitSpread.Div(s.UpperPrice).Compare(gridFeeRate) < 0 {
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return fmt.Errorf("profitSpread %f %s is too small for upper price, less than the fee rate: %s", s.ProfitSpread.Float64(), s.ProfitSpread.Div(s.UpperPrice).Percentage(), s.FeeRate.Percentage())
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}
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}
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