
La stratégie de bullish engulfing est une stratégie de négociation quantitative basée sur la forme de la ligne K. La stratégie permet de profiter de l’occasion d’un renversement du prix d’une action en identifiant la forme de la ligne K de Bullish Engulfing.
Les principaux avantages de cette stratégie sont:
La stratégie est basée sur la forme de la ligne K de la courbe Bullish Engulfing.
Lorsqu’une action est en tendance baissière, si une entité plus petite, la ligne K, engloutit complètement la ligne K suivante, et que le prix de clôture est supérieur au prix le plus élevé de la ligne K précédente, il s’agit d’un engloutissement bullish engulfant le soleil, ce qui indique que le prix est sur le point de faire un revirement et que le prix de l’action va monter.
La stratégie consiste à ouvrir plus de positions lorsqu’une forme de Bullish Engulfing est identifiée et à définir un Stop Stop Loss Exit, avec un objectif de profit de 1%, d’arrêt de perte de 1% et de verrouillage des bénéfices.
Cette stratégie présente les avantages suivants:
Cette stratégie comporte aussi des risques:
Pour contrer ces risques, nous pouvons prendre les mesures suivantes:
La stratégie peut également être optimisée pour:
La stratégie d’achat et de vente Bullish Engulfing est une stratégie de négociation quantitative basée sur l’analyse technique, avec des avantages tels que la simplicité, la clarté et la facilité de mise en œuvre des signaux de négociation. En cas d’optimisation des paramètres et de mesures de contrôle des risques, il est recommandé de réaliser des bénéfices stables.
/*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
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//@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)