The Bidirectional Moving Average Reversion Trading Strategy is a quantitative trading strategy built on the theory of price mean reversion. This strategy captures price reversal opportunities by setting up multiple moving averages and entering the market when the price deviates significantly from the moving averages, and exiting when it reverts back.
The core idea of this strategy is price mean reversion, which suggests that prices tend to fluctuate around an average value, and have a higher chance of reverting back when they deviate too far from the average. Specifically, this strategy sets up three groups of moving averages: entry moving averages, exit moving averages, and stop-loss moving averages. It will open corresponding long or short positions when prices hit the entry moving averages; close positions when prices hit the exit moving averages; and control losses with stop-loss moving averages in case prices continue to trend without reverting back.
From the code logic perspective, there are two entry moving averages - long and short - consisting of fast and slow moving averages respectively. The deviation between them and the price determines the position size. In addition, the exit moving average is a separate moving average that signals when to close the positions. When prices hit this line, existing positions will be flattened.
The main advantages of the bidirectional moving average reversion strategy include:
This strategy works well with low volatility instruments that have relatively small price swings, especially when entering range-bound cycles. It can effectively capture opportunities from temporary price reversals. Meanwhile, the risk control measures are quite comprehensive, capping losses within reasonable ranges even if prices do not revert back.
There are also some risks associated with this strategy:
Some ways to mitigate the above risks include:
There is also ample room to further optimize this strategy:
The bidirectional moving average reversion trading strategy aims to profit from price reversals after significant deviations from its moving average levels. With proper risk control measures, it can achieve consistent profits through parameter tuning. While risks like chasing trends and excessive volatility still exist, they can be addressed through improving entry logic, reducing position sizes and more. This easy-to-understand strategy deserves further research and optimization from quantitative traders.
/*backtest start: 2023-12-15 00:00:00 end: 2024-01-14 00:00:00 period: 1h basePeriod: 15m exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}] */ //@version=5 strategy(title = "hamster-bot MRS 2", overlay = true, default_qty_type = strategy.percent_of_equity, initial_capital = 100, default_qty_value = 30, pyramiding = 1, commission_value = 0.1, backtest_fill_limits_assumption = 1) info_options = "Options" on_close = input(false, title = "Entry on close", inline=info_options, group=info_options) OFFS = input.int(0, minval = 0, maxval = 1, title = "| Offset View", inline=info_options, group=info_options) trade_offset = input.int(0, minval = 0, maxval = 1, title = "Trade", inline=info_options, group=info_options) use_kalman_filter = input.bool(false, title="Use Kalman filter", group=info_options) //MA Opening info_opening = "MA Opening Long" maopeningtyp_l = input.string("SMA", title="Type", options=["SMA", "EMA", "TEMA", "DEMA", "ZLEMA", "WMA", "Hma", "Thma", "Ehma", "H", "L", "DMA"], title = "", inline=info_opening, group=info_opening) maopeningsrc_l = input.source(ohlc4, title = "", inline=info_opening, group=info_opening) maopeninglen_l = input.int(3, minval = 1, title = "", inline=info_opening, group=info_opening) long1on = input(true, title = "", inline = "long1") long1shift = input.float(0.96, step = 0.005, title = "Long", inline = "long1") long1lot = input.int(10, minval = 0, maxval = 10000, step = 10, title = "Lot 1", inline = "long1") info_opening_s = "MA Opening Short" maopeningtyp_s = input.string("SMA", title="Type", options=["SMA", "EMA", "TEMA", "DEMA", "ZLEMA", "WMA", "Hma", "Thma", "Ehma", "H", "L", "DMA"], title = "", inline=info_opening_s, group=info_opening_s) maopeningsrc_s = input.source(ohlc4, title = "", inline=info_opening_s, group=info_opening_s) maopeninglen_s = input.int(3, minval = 1, title = "", inline=info_opening_s, group=info_opening_s) short1on = input(true, title = "", inline = "short1") short1shift = input.float(1.04, step = 0.005, title = "short", inline = "short1") short1lot = input.int(10, minval = 0, maxval = 10000, step = 10, title = "Lot 1", inline = "short1") //MA Closing info_closing = "MA Closing" maclosingtyp = input.string("SMA", title="Type", options=["SMA", "EMA", "TEMA", "DEMA", "ZLEMA", "WMA", "Hma", "Thma", "Ehma", "H", "L", "DMA"], title = "", inline=info_closing, group=info_closing) maclosingsrc = input.source(ohlc4, title = "", inline=info_closing, group=info_closing) maclosinglen = input.int(3, minval = 1, maxval = 200, title = "", inline=info_closing, group=info_closing) maclosingmul = input.float(1, step = 0.005, title = "mul", inline=info_closing, group=info_closing) startTime = input(timestamp("01 Jan 2010 00:00 +0000"), "Start date", inline = "period") finalTime = input(timestamp("31 Dec 2030 23:59 +0000"), "Final date", inline = "period") HMA(_src, _length) => ta.wma(2 * ta.wma(_src, _length / 2) - ta.wma(_src, _length), math.round(math.sqrt(_length))) EHMA(_src, _length) => ta.ema(2 * ta.ema(_src, _length / 2) - ta.ema(_src, _length), math.round(math.sqrt(_length))) THMA(_src, _length) => ta.wma(ta.wma(_src,_length / 3) * 3 - ta.wma(_src, _length / 2) - ta.wma(_src, _length), _length) tema(sec, length)=> tema1= ta.ema(sec, length) tema2= ta.ema(tema1, length) tema3= ta.ema(tema2, length) tema_r = 3*tema1-3*tema2+tema3 donchian(len) => math.avg(ta.lowest(len), ta.highest(len)) ATR_func(_src, _len)=> atrLow = low - ta.atr(_len) trailAtrLow = atrLow trailAtrLow := na(trailAtrLow[1]) ? trailAtrLow : atrLow >= trailAtrLow[1] ? atrLow : trailAtrLow[1] supportHit = _src <= trailAtrLow trailAtrLow := supportHit ? atrLow : trailAtrLow trailAtrLow f_dema(src, len)=> EMA1 = ta.ema(src, len) EMA2 = ta.ema(EMA1, len) DEMA = (2*EMA1)-EMA2 f_zlema(src, period) => lag = math.round((period - 1) / 2) ema_data = src + (src - src[lag]) zl= ta.ema(ema_data, period) f_kalman_filter(src) => float value1= na float value2 = na value1 := 0.2 * (src - src[1]) + 0.8 * nz(value1[1]) value2 := 0.1 * (ta.tr) + 0.8 * nz(value2[1]) lambda = math.abs(value1 / value2) alpha = (-math.pow(lambda, 2) + math.sqrt(math.pow(lambda, 4) + 16 * math.pow(lambda, 2)))/8 value3 = float(na) value3 := alpha * src + (1 - alpha) * nz(value3[1]) //SWITCH ma_func(modeSwitch, src, len, use_k_f=true) => modeSwitch == "SMA" ? use_kalman_filter and use_k_f ? f_kalman_filter(ta.sma(src, len)) : ta.sma(src, len) : modeSwitch == "RMA" ? use_kalman_filter and use_k_f ? f_kalman_filter(ta.rma(src, len)) : ta.rma(src, len) : modeSwitch == "EMA" ? use_kalman_filter and use_k_f ? f_kalman_filter(ta.ema(src, len)) : ta.ema(src, len) : modeSwitch == "TEMA" ? use_kalman_filter and use_k_f ? f_kalman_filter(tema(src, len)) : tema(src, len): modeSwitch == "DEMA" ? use_kalman_filter and use_k_f ? f_kalman_filter(f_dema(src, len)) : f_dema(src, len): modeSwitch == "ZLEMA" ? use_kalman_filter and use_k_f ? f_kalman_filter(f_zlema(src, len)) : f_zlema(src, len): modeSwitch == "WMA" ? use_kalman_filter and use_k_f ? f_kalman_filter(ta.wma(src, len)) : ta.wma(src, len): modeSwitch == "VWMA" ? use_kalman_filter and use_k_f ? f_kalman_filter(ta.vwma(src, len)) : ta.vwma(src, len): modeSwitch == "Hma" ? use_kalman_filter and use_k_f ? f_kalman_filter(HMA(src, len)) : HMA(src, len): modeSwitch == "Ehma" ? use_kalman_filter and use_k_f ? f_kalman_filter(EHMA(src, len)) : EHMA(src, len): modeSwitch == "Thma" ? use_kalman_filter and use_k_f ? f_kalman_filter(THMA(src, len/2)) : THMA(src, len/2): modeSwitch == "ATR" ? use_kalman_filter and use_k_f ? f_kalman_filter(ATR_func(src, len)): ATR_func(src, len) : modeSwitch == "L" ? use_kalman_filter and use_k_f ? f_kalman_filter(ta.lowest(len)): ta.lowest(len) : modeSwitch == "H" ? use_kalman_filter and use_k_f ? f_kalman_filter(ta.highest(len)): ta.highest(len) : modeSwitch == "DMA" ? donchian(len) : na //Var sum = 0.0 maopening_l = 0.0 maopening_s = 0.0 maclosing = 0.0 pos = strategy.position_size p = 0.0 p := pos == 0 ? (strategy.equity / 100) / close : p[1] truetime = true loss = 0.0 maxloss = 0.0 equity = 0.0 //MA Opening maopening_l := ma_func(maopeningtyp_l, maopeningsrc_l, maopeninglen_l) maopening_s := ma_func(maopeningtyp_s, maopeningsrc_s, maopeninglen_s) //MA Closing maclosing := ma_func(maclosingtyp, maclosingsrc, maclosinglen) * maclosingmul long1 = long1on == false ? 0 : long1shift == 0 ? 0 : long1lot == 0 ? 0 : maopening_l == 0 ? 0 : maopening_l * long1shift short1 = short1on == false ? 0 : short1shift == 0 ? 0 : short1lot == 0 ? 0 : maopening_s == 0 ? 0 : maopening_s * short1shift //Colors long1col = long1 == 0 ? na : color.green short1col = short1 == 0 ? na : color.red //Lines // plot(maopening_l, offset = OFFS, color = color.new(color.green, 50)) // plot(maopening_s, offset = OFFS, color = color.new(color.red, 50)) plot(maclosing, offset = OFFS, color = color.fuchsia) long1line = long1 == 0 ? close : long1 short1line = short1 == 0 ? close : short1 plot(long1line, offset = OFFS, color = long1col) plot(short1line, offset = OFFS, color = short1col) //Lots lotlong1 = p * long1lot lotshort1 = p * short1lot //Entry if truetime //Long sum := 0 strategy.entry("L", strategy.long, lotlong1, limit = on_close ? na : long1, when = long1 > 0 and pos <= sum and (on_close ? close <= long1[trade_offset] : true)) sum := lotlong1 //Short sum := 0 pos := -1 * pos strategy.entry("S", strategy.short, lotshort1, limit = on_close ? na : short1, when = short1 > 0 and pos <= sum and (on_close ? close >= short1[trade_offset] : true)) sum := lotshort1 strategy.exit("Exit", na, limit = maclosing) if time > finalTime strategy.close_all()