该策略是一个结合布林带和EMA指标的趋势跟踪系统,通过多层风险控制机制来优化交易表现。策略核心是利用布林带上下轨的突破回归形态来捕捉市场趋势,同时结合EMA趋势过滤器来提高交易的准确性。系统还包含了完整的风险管理体系,包括追踪止损、固定止损、获利目标以及基于时间的平仓机制。
策略的交易逻辑基于以下几个核心要素: 1. 使用标准差(STDDEV)为1.5、周期为14的布林带作为主要的交易信号指标 2. 当前一根K线收盘价突破上轨并且当前K线反转时,触发做空信号 3. 当前一根K线收盘价突破下轨并且当前K线走强时,触发做多信号 4. 可选择性地添加80周期EMA作为趋势过滤器,只在趋势方向一致时开仓 5. 当价格穿越布林带中轨时激活追踪止损 6. 可设置固定的止损和获利目标金额 7. 支持基于K线数量的自动平仓机制
这是一个设计完善的趋势跟踪系统,通过布林带和EMA的组合提供可靠的交易信号,并通过多层次的风险控制确保交易的安全性。策略的可配置性强,能够适应不同的交易风格和市场环境。虽然存在一些固有的风险,但通过建议的优化方向可以进一步提升策略的稳定性和盈利能力。
/*backtest
start: 2025-01-10 00:00:00
end: 2025-02-08 08:00:00
period: 2h
basePeriod: 2h
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/
//@version=5
strategy("AI Bollinger Bands Strategy with SL, TP, and Bars Till Close", overlay=true)
// Input parameters
bb_length = input.int(14, title="Bollinger Bands Length", minval=1)
bb_stddev = input.float(1.5, title="Bollinger Bands Standard Deviation", minval=0.1)
use_ema = input.bool(true, title="Use EMA Filter")
ema_length = input.int(80, title="EMA Length", minval=1)
use_trailing_stop = input.bool(true, title="Use Trailing Stop")
use_sl = input.bool(true, title="Use Stop Loss")
use_tp = input.bool(false, title="Use Take Profit")
sl_dollars = input.float(300.0, title="Stop Loss (\$)", minval=0.0)
tp_dollars = input.float(1000.0, title="Take Profit (\$)", minval=0.0)
use_bars_till_close = input.bool(true, title="Use Bars Till Close")
bars_till_close = input.int(10, title="Bars Till Close", minval=1)
// New input to toggle indicator plotting
plot_indicators = input.bool(true, title="Plot Bollinger Bands and EMA on Chart")
// Calculate Bollinger Bands and EMA
basis = ta.sma(close, bb_length)
upper_band = basis + bb_stddev * ta.stdev(close, bb_length)
lower_band = basis - bb_stddev * ta.stdev(close, bb_length)
ema = ta.ema(close, ema_length)
// Plot Bollinger Bands and EMA conditionally
plot(plot_indicators ? basis : na, color=color.blue, linewidth=2, title="Basis (SMA)")
plot(plot_indicators ? upper_band : na, color=color.red, linewidth=2, title="Upper Band")
plot(plot_indicators ? lower_band : na, color=color.green, linewidth=2, title="Lower Band")
plot(plot_indicators ? ema : na, color=color.orange, linewidth=2, title="EMA")
// EMA conditions
ema_long_condition = ema > ema[1]
ema_short_condition = ema < ema[1]
// Entry conditions
sell_condition = close[1] > upper_band[1] and close[1] > open[1] and close < open
if sell_condition and (not use_ema or ema_short_condition)
strategy.entry("Sell", strategy.short)
buy_condition = close[1] < lower_band[1] and close > open
if buy_condition and (not use_ema or ema_long_condition)
strategy.entry("Buy", strategy.long)
// Trailing stop logic
if use_trailing_stop
if strategy.position_size > 0 and close >= basis
strategy.exit("Trailing Stop Long", from_entry="Buy", stop=low)
if strategy.position_size < 0 and close <= basis
strategy.exit("Trailing Stop Short", from_entry="Sell", stop=high)
// Stop Loss and Take Profit logic
if use_sl or use_tp
if strategy.position_size > 0
long_entry = strategy.position_avg_price
long_sl = long_entry - sl_dollars
long_tp = long_entry + tp_dollars
if use_sl and close <= long_sl
strategy.close("Buy", comment="Long SL Hit")
if use_tp and close >= long_tp
strategy.close("Buy", comment="Long TP Hit")
if strategy.position_size < 0
short_entry = strategy.position_avg_price
short_sl = short_entry + sl_dollars
short_tp = short_entry - tp_dollars
if use_sl and close >= short_sl
strategy.close("Sell", comment="Short SL Hit")
if use_tp and close <= short_tp
strategy.close("Sell", comment="Short TP Hit")
// Bars Till Close logic
var int bars_since_entry = na
if strategy.position_size != 0
bars_since_entry := na(bars_since_entry) ? 0 : bars_since_entry + 1
else
bars_since_entry := na
if use_bars_till_close and not na(bars_since_entry) and bars_since_entry >= bars_till_close
strategy.close("Buy", comment="Bars Till Close Hit")
strategy.close("Sell", comment="Bars Till Close Hit")
// Plot buy/sell signals
plotshape(sell_condition and (not use_ema or ema_short_condition), title="Sell Signal", location=location.abovebar, color=color.red, style=shape.labeldown, text="Sell")
plotshape(buy_condition and (not use_ema or ema_long_condition), title="Buy Signal", location=location.belowbar, color=color.green, style=shape.labelup, text="Buy")