La idea central de esta estrategia es ajustar dinámicamente el tamaño de la posición en función de la tendencia de la curva de acciones: aumentar el tamaño de la posición durante la ganancia y disminuir el tamaño de la posición durante la pérdida para controlar el riesgo general.
Estrategia dinámica de dimensionamiento de posiciones basada en la curva de patrimonio
La estrategia utiliza dos métodos para determinar si la curva de renta variable está en una tendencia bajista: 1) Calcular las medias móviles simples rápidas y lentas de la curva de renta variable, si la SMA rápida está por debajo de la lenta, se considera una tendencia bajista; 2) Calcular la curva de renta variable frente a su propia media móvil simple de período más largo, si la renta variable está por debajo de la línea de media móvil, se considera una tendencia bajista.
Cuando se determina la tendencia a la baja de la curva de renta variable, el tamaño de la posición se reducirá o aumentará en un cierto porcentaje en función de los ajustes. Por ejemplo, si se establece una reducción del 50%, el tamaño original de la posición del 10% se reducirá al 5%. Este mecanismo aumenta el tamaño de la posición durante el beneficio y disminuye el tamaño durante la pérdida para controlar el riesgo general.
La lógica general de esta estrategia es clara: ajusta dinámicamente el tamaño de la posición en función de la curva de renta variable, lo que ayuda a controlar eficazmente el riesgo.
/*backtest start: 2024-01-08 00:00:00 end: 2024-01-15 00:00:00 period: 3m basePeriod: 1m 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/ // © shardison //@version=5 //EXPLANATION //"Trading the equity curve" as a risk management method is the //process of acting on trade signals depending on whether a system’s performance //is indicating the strategy is in a profitable or losing phase. //The point of managing equity curve is to minimize risk in trading when the equity curve is in a downtrend. //This strategy has two modes to determine the equity curve downtrend: //By creating two simple moving averages of a portfolio's equity curve - a short-term //and a longer-term one - and acting on their crossings. If the fast SMA is below //the slow SMA, equity downtrend is detected (smafastequity < smaslowequity). //The second method is by using the crossings of equity itself with the longer-period SMA (equity < smasloweequity). //When "Reduce size by %" is active, the position size will be reduced by a specified percentage //if the equity is "under water" according to a selected rule. If you're a risk seeker, select "Increase size by %" //- for some robust systems, it could help overcome their small drawdowns quicker. strategy("Use Trading the Equity Curve Postion Sizing", shorttitle="TEC", default_qty_type = strategy.percent_of_equity, default_qty_value = 10, initial_capital = 100000) //TRADING THE EQUITY CURVE INPUTS useTEC = input.bool(true, title="Use Trading the Equity Curve Position Sizing") defulttraderule = useTEC ? false: true initialsize = input.float(defval=10.0, title="Initial % Equity") slowequitylength = input.int(25, title="Slow SMA Period") fastequitylength = input.int(9, title="Fast SMA Period") seedequity = 100000 * .10 if strategy.equity == 0 seedequity else strategy.equity slowequityseed = strategy.equity > seedequity ? strategy.equity : seedequity fastequityseed = strategy.equity > seedequity ? strategy.equity : seedequity smaslowequity = ta.sma(slowequityseed, slowequitylength) smafastequity = ta.sma(fastequityseed, fastequitylength) equitycalc = input.bool(true, title="Use Fast/Slow Avg", tooltip="Fast Equity Avg is below Slow---otherwise if unchecked uses Slow Equity Avg below Equity") sizeadjstring = input.string("Reduce size by (%)", title="Position Size Adjustment", options=["Reduce size by (%)","Increase size by (%)"]) sizeadjint = input.int(50, title="Increase/Decrease % Equity by:") equitydowntrendavgs = smafastequity < smaslowequity slowequitylessequity = strategy.equity < smaslowequity equitymethod = equitycalc ? equitydowntrendavgs : slowequitylessequity if sizeadjstring == ("Reduce size by (%)") sizeadjdown = initialsize * (1 - (sizeadjint/100)) else sizeadjup = initialsize * (1 + (sizeadjint/100)) c = close qty = 100000 * (initialsize / 100) / c if useTEC and equitymethod if sizeadjstring == "Reduce size by (%)" qty := (strategy.equity * (initialsize / 100) * (1 - (sizeadjint/100))) / c else qty := (strategy.equity * (initialsize / 100) * (1 + (sizeadjint/100))) / c //EXAMPLE TRADING STRATEGY INPUTS CMO_Length = input.int(defval=9, minval=1, title='Chande Momentum Length') CMO_Signal = input.int(defval=10, minval=1, title='Chande Momentum Signal') chandeMO = ta.cmo(close, CMO_Length) cmosignal = ta.sma(chandeMO, CMO_Signal) SuperTrend_atrPeriod = input.int(10, "SuperTrend ATR Length") SuperTrend_Factor = input.float(3.0, "SuperTrend Factor", step = 0.01) Momentum_Length = input.int(12, "Momentum Length") price = close mom0 = ta.mom(price, Momentum_Length) mom1 = ta.mom( mom0, 1) [supertrend, direction] = ta.supertrend(SuperTrend_Factor, SuperTrend_atrPeriod) stupind = (direction < 0 ? supertrend : na) stdownind = (direction < 0? na : supertrend) //TRADING CONDITIONS longConditiondefault = ta.crossover(chandeMO, cmosignal) and (mom0 > 0 and mom1 > 0 and close > stupind) and defulttraderule if (longConditiondefault) strategy.entry("DefLong", strategy.long, qty=qty) shortConditiondefault = ta.crossunder(chandeMO, cmosignal) and (mom0 < 0 and mom1 < 0 and close < stdownind) and defulttraderule if (shortConditiondefault) strategy.entry("DefShort", strategy.short, qty=qty) longCondition = ta.crossover(chandeMO, cmosignal) and (mom0 > 0 and mom1 > 0 and close > stupind) and useTEC if (longCondition) strategy.entry("AdjLong", strategy.long, qty = qty) shortCondition = ta.crossunder(chandeMO, cmosignal) and (mom0 < 0 and mom1 < 0 and close < stdownind) and useTEC if (shortCondition) strategy.entry("AdjShort", strategy.short, qty = qty) plot(strategy.equity) plot(smaslowequity, color=color.new(color.red, 0)) plot(smafastequity, color=color.new(color.green, 0))