Strategi beli dan jual Bullish Engulfing adalah strategi perdagangan kuantitatif berdasarkan corak lilin. Ia menangkap peluang untuk mendapat keuntungan daripada pembalikan harga dengan mengenal pasti corak lilin
Strategi ini mengenal pasti pembalikan harga berdasarkan corak candlestick
Apabila saham berada dalam trend penurunan, jika lilin dengan badan sebenar yang kecil diikuti oleh lilin yang badan sebenarnya sepenuhnya menelan badan sebenar sebelumnya, dan harga penutupan lebih tinggi daripada harga tinggi sebelumnya, ini membentuk corak Bullish Engulfing, menandakan pembalikan trend yang akan datang, di mana harga akan mula meningkat.
Strategi ini akan membuka kedudukan panjang apabila corak Bullish Engulfing dikenal pasti, dengan sasaran keuntungan 1% dan stop loss 1%, untuk mengunci keuntungan.
Kelebihan strategi ini ialah:
Terdapat beberapa risiko untuk strategi ini:
Untuk menangani risiko ini, kita boleh:
Strategi ini juga boleh ditingkatkan dengan:
Strategi beli dan jual Bullish Engulfing adalah strategi perdagangan kuantitatif yang matang berdasarkan analisis teknikal, dengan kelebihan isyarat perdagangan yang mudah dan jelas yang mudah dilaksanakan. Dengan parameter yang dioptimumkan dan langkah kawalan risiko yang baik, ia boleh menghasilkan keuntungan yang stabil dan sangat disyorkan.
/*backtest start: 2022-12-20 00:00:00 end: 2023-12-26 00:00:00 period: 1d basePeriod: 1h exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}] */ // This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/ // © thequantscience // ██████╗ ██╗ ██╗██╗ ██╗ ██╗███████╗██╗ ██╗ ███████╗███╗ ██╗ ██████╗ ██╗ ██╗██╗ ███████╗██╗███╗ ██╗ ██████╗ // ██╔══██╗██║ ██║██║ ██║ ██║██╔════╝██║ ██║ ██╔════╝████╗ ██║██╔════╝ ██║ ██║██║ ██╔════╝██║████╗ ██║██╔════╝ // ██████╔╝██║ ██║██║ ██║ ██║███████╗███████║ █████╗ ██╔██╗ ██║██║ ███╗██║ ██║██║ █████╗ ██║██╔██╗ ██║██║ ███╗ // ██╔══██╗██║ ██║██║ ██║ ██║╚════██║██╔══██║ ██╔══╝ ██║╚██╗██║██║ ██║██║ ██║██║ ██╔══╝ ██║██║╚██╗██║██║ ██║ // ██████╔╝╚██████╔╝███████╗███████╗██║███████║██║ ██║ ███████╗██║ ╚████║╚██████╔╝╚██████╔╝███████╗██║ ██║██║ ╚████║╚██████╔╝ // ╚═════╝ ╚═════╝ ╚══════╝╚══════╝╚═╝╚══════╝╚═╝ ╚═╝ ╚══════╝╚═╝ ╚═══╝ ╚═════╝ ╚═════╝ ╚══════╝╚═╝ ╚═╝╚═╝ ╚═══╝ ╚═════╝ //@version=5 strategy( "Buy&Sell Bullish Engulfing - The Quant Science", overlay = true, default_qty_type = strategy.percent_of_equity, default_qty_value = 100, pyramiding = 1, currency = currency.EUR, initial_capital = 10000, commission_type = strategy.commission.percent, commission_value = 0.07, process_orders_on_close = true, close_entries_rule = "ANY" ) startDate = input.int(title="D: ", defval=1, minval=1, maxval=31, inline = 'Start', group = "START DATE BACKTESTING", tooltip = "D is Day, M is Month, Y is Year.") startMonth = input.int(title="M: ", defval=1, minval=1, maxval=12, inline = 'Start', group = "START DATE BACKTESTING", tooltip = "D is Day, M is Month, Y is Year.") startYear = input.int(title="Y: ", defval=2022, minval=1800, maxval=2100, inline = 'Start', group = "START DATE BACKTESTING", tooltip = "D is Day, M is Month, Y is Year.") endDate = input.int(title="D: ", defval=31, minval=1, maxval=31, inline = 'End', group = "END DATE BACKTESTING", tooltip = "D is Day, M is Month, Y is Year.") endMonth = input.int(title="M: ", defval=12, minval=1, maxval=12, inline = 'End', group = "END DATE BACKTESTING", tooltip = "D is Day, M is Month, Y is Year.") endYear = input.int(title="Y: ", defval=2023, minval=1800, maxval=2100, inline = 'End', group = "END DATE BACKTESTING", tooltip = "D is Day, M is Month, Y is Year.") inDateRange = (time >= timestamp(syminfo.timezone, startYear, startMonth, startDate, 0, 0)) and (time < timestamp(syminfo.timezone, endYear, endMonth, endDate, 0, 0)) PROFIT = input.float(defval = 1, minval = 0, title = "Target profit (%): ", step = 0.10, group = "TAKE PROFIT-STOP LOSS") STOPLOSS = input.float(defval = 1, minval = 0, title = "Stop Loss (%): ", step = 0.10, group = "TAKE PROFIT-STOP LOSS") var float equity_trades = 0 strategy.initial_capital = 50000 equity_trades := strategy.initial_capital var float equity = 0 var float qty_order = 0 t_ordersize = "Percentage size of each new order. With 'Reinvestment Profit' activate, the size will be calculate on the equity, with 'Reinvestment Profit' deactivate the size will be calculate on the initial capital." orders_size = input.float(defval = 2, title = "Orders size (%): ", minval = 0.10, step = 0.10, maxval = 100, group = "RISK MANAGEMENT", tooltip = t_ordersize) qty_order := ((equity_trades * orders_size) / 100 ) / close C_DownTrend = true C_UpTrend = true var trendRule1 = "SMA50" var trendRule2 = "SMA50, SMA200" var trendRule = input.string(trendRule1, "Detect Trend Based On", options=[trendRule1, trendRule2, "No detection"], group = "BULLISH ENGULFING") if trendRule == trendRule1 priceAvg = ta.sma(close, 50) C_DownTrend := close < priceAvg C_UpTrend := close > priceAvg if trendRule == trendRule2 sma200 = ta.sma(close, 200) sma50 = ta.sma(close, 50) C_DownTrend := close < sma50 and sma50 < sma200 C_UpTrend := close > sma50 and sma50 > sma200 C_Len = 14 C_ShadowPercent = 5.0 C_ShadowEqualsPercent = 100.0 C_DojiBodyPercent = 5.0 C_Factor = 2.0 C_BodyHi = math.max(close, open) C_BodyLo = math.min(close, open) C_Body = C_BodyHi - C_BodyLo C_BodyAvg = ta.ema(C_Body, C_Len) C_SmallBody = C_Body < C_BodyAvg C_LongBody = C_Body > C_BodyAvg C_UpShadow = high - C_BodyHi C_DnShadow = C_BodyLo - low C_HasUpShadow = C_UpShadow > C_ShadowPercent / 100 * C_Body C_HasDnShadow = C_DnShadow > C_ShadowPercent / 100 * C_Body C_WhiteBody = open < close C_BlackBody = open > close C_Range = high-low C_IsInsideBar = C_BodyHi[1] > C_BodyHi and C_BodyLo[1] < C_BodyLo C_BodyMiddle = C_Body / 2 + C_BodyLo C_ShadowEquals = C_UpShadow == C_DnShadow or (math.abs(C_UpShadow - C_DnShadow) / C_DnShadow * 100) < C_ShadowEqualsPercent and (math.abs(C_DnShadow - C_UpShadow) / C_UpShadow * 100) < C_ShadowEqualsPercent C_IsDojiBody = C_Range > 0 and C_Body <= C_Range * C_DojiBodyPercent / 100 C_Doji = C_IsDojiBody and C_ShadowEquals patternLabelPosLow = low - (ta.atr(30) * 0.6) patternLabelPosHigh = high + (ta.atr(30) * 0.6) label_color_bullish = input.color(color.rgb(43, 255, 0), title = "Label Color Bullish", group = "BULLISH ENGULFING") C_EngulfingBullishNumberOfCandles = 2 C_EngulfingBullish = C_DownTrend and C_WhiteBody and C_LongBody and C_BlackBody[1] and C_SmallBody[1] and close >= open[1] and open <= close[1] and ( close > open[1] or open < close[1] ) if C_EngulfingBullish var ttBullishEngulfing = "Engulfing\nAt the end of a given downward trend, there will most likely be a reversal pattern. To distinguish the first day, this candlestick pattern uses a small body, followed by a day where the candle body fully overtakes the body from the day before, and closes in the trend’s opposite direction. Although similar to the outside reversal chart pattern, it is not essential for this pattern to completely overtake the range (high to low), rather only the open and the close." label.new(bar_index, patternLabelPosLow, text="BE", style=label.style_label_up, color = label_color_bullish, textcolor=color.white, tooltip = ttBullishEngulfing) bgcolor(ta.highest(C_EngulfingBullish?1:0, C_EngulfingBullishNumberOfCandles)!=0 ? color.new(#21f321, 90) : na, offset=-(C_EngulfingBullishNumberOfCandles-1)) var float c = 0 var float o = 0 var float c_exit = 0 var float c_stopl = 0 if C_EngulfingBullish and strategy.opentrades==0 and inDateRange c := strategy.equity o := close c_exit := c + (c * PROFIT / 100) c_stopl := c - (c * STOPLOSS / 100) strategy.entry(id = "LONG", direction = strategy.long, qty = qty_order, limit = o) if ta.crossover(strategy.equity, c_exit) strategy.exit(id = "CLOSE-LONG", from_entry = "LONG", limit = close) if ta.crossunder(strategy.equity, c_stopl) strategy.exit(id = "CLOSE-LONG", from_entry = "LONG", limit = close)