Chiến lược giao dịch chênh lệch giá dao động ngẫu nhiên khung thời gian kép

/*backtest
start: 2025-01-01 00:00:00
end: 2025-06-17 00:00:00
period: 4h
basePeriod: 4h
exchanges: [{"eid":"Binance","currency":"ETH_USDT"}]
*/

//@version=6
strategy("Dual TF Stochastic Strategy", overlay=false)

// Input parameters with updated defaults
primaryLen = input.int(12, "Primary Stoch K Length", minval=1)  // Changed from 14 to 12
primarySmooth = input.int(12, "Primary Stoch K Smoothing", minval=1)  // Changed from 3 to 12
primaryDLen = input.int(12, "Primary Stoch D Length", minval=1)  // Changed from 3 to 12
primaryRes = input.timeframe("15S", "Primary Timeframe")  // Changed from "" to "15S"

refLen = input.int(12, "Reference Stoch K Length", minval=1)  // Changed from 14 to 12
refSmooth = input.int(15, "Reference Stoch K Smoothing", minval=1)  // Changed from 3 to 15
refDLen = input.int(30, "Reference Stoch D Length", minval=1)  // Changed from 3 to 30
refRes = input.timeframe("15S", "Reference Timeframe")  // Changed from "D" to "15S"

tolerance = input.float(0.1, "Ref D Tolerance %", minval=0.1, maxval=10.0, step=0.1)  // Changed from 1.0 to 0.1
maxPriceDiff = input.float(0.1, "Maximum Price % Difference", minval=0.1, maxval=5.0, step=0.1)  // Changed from 1.0 to 0.1
closeKThreshold = input.float(0.7, "Close %K Tolerance %", minval=0.1, maxval=10.0, step=0.1)  // Changed from 5.0 to 0.7
minPriceDiffShort = input.float(0.1, "Min Price % Diff for Close %K Short", minval=0.1, maxval=5.0, step=0.1)  // Changed from 0.5 to 0.1
showLabels = input.bool(true, "Show Crossover/Crossunder Labels")

// Time Filters (America/New_York timezone, UTC-4)
is_premarket = hour(time, "America/New_York") < 9
is_postmarket = hour(time, "America/New_York") >= 16
is_regular_hours = hour(time, "America/New_York") >= 9 and hour(time, "America/New_York") < 16
is_exit_time = hour(time, "America/New_York") >= 15 and minute(time, "America/New_York") >= 30  // 3:30 PM ET

// Moving Average Settings
useMAFilter = input.bool(true, "Use Moving Average Filter")
maLength = input.int(200, "Moving Average Length", minval=1)
maType = input.string("SMA", "Moving Average Type", options=["SMA", "EMA", "WMA", "VWMA"])
maTimeframe = input.timeframe("", "Moving Average Timeframe")

// Stochastic Calculations
primaryHighest = ta.highest(high, primaryLen)
primaryLowest = ta.lowest(low, primaryLen)
primaryK_raw = 100 * (close - primaryLowest) / (primaryHighest - primaryLowest)
primaryK = ta.sma(primaryK_raw, primarySmooth)
primaryD = ta.sma(primaryK, primaryDLen)
[primaryK_tf, primaryD_tf] = request.security(syminfo.tickerid, primaryRes, [primaryK, primaryD])

refHighest = ta.highest(high, refLen)
refLowest = ta.lowest(low, refLen)
refK_raw = 100 * (close - refLowest) / (refHighest - refLowest)
refK = ta.sma(refK_raw, refSmooth)
refD = ta.sma(refK, refDLen)
[refK_tf, refD_tf] = request.security(syminfo.tickerid, refRes, [refK, refD])

// Calculate Moving Average
var float ma = na
if useMAFilter
    if maType == "SMA"
        ma := request.security(syminfo.tickerid, maTimeframe, ta.sma(close, maLength))
    else if maType == "EMA"
        ma := request.security(syminfo.tickerid, maTimeframe, ta.ema(close, maLength))
    else if maType == "WMA"
        ma := request.security(syminfo.tickerid, maTimeframe, ta.wma(close, maLength))
    else if maType == "VWMA"
        ma := request.security(syminfo.tickerid, maTimeframe, ta.vwma(close, maLength))

// Price relative to MA
priceAboveMA = not useMAFilter or close > ma
priceBelowMA = not useMAFilter or close < ma

// Crossover Detection and Tracking
crossOver = ta.crossover(primaryK_tf, primaryD_tf)
crossUnder = ta.crossunder(primaryK_tf, primaryD_tf)

// Separate tracking for crossover and crossunder %K and price
var float lastCrossOverK = na
var float lastCrossOverPrice = na
var float currentCrossOverK = na
var float currentCrossOverPrice = na

var float lastCrossUnderK = na
var float lastCrossUnderPrice = na
var float currentCrossUnderK = na
var float currentCrossUnderPrice = na

// Update crossover tracking variables
if crossOver
    lastCrossOverK := nz(currentCrossOverK, primaryK_tf[1])
    lastCrossOverPrice := nz(currentCrossOverPrice, close[1])
    currentCrossOverK := primaryK_tf
    currentCrossOverPrice := close

// Update crossunder tracking variables
if crossUnder
    lastCrossUnderK := nz(currentCrossUnderK, primaryK_tf[1])
    lastCrossUnderPrice := nz(currentCrossUnderPrice, close[1])
    currentCrossUnderK := primaryK_tf
    currentCrossUnderPrice := close

// Calculate differences separately
crossOverPriceDiffPercent = math.abs((currentCrossOverPrice - lastCrossOverPrice) / lastCrossOverPrice * 100)
crossOverKDiffPercent = math.abs((currentCrossOverK - lastCrossOverK) / lastCrossOverK * 100)
crossUnderPriceDiffPercent = math.abs((currentCrossUnderPrice - lastCrossUnderPrice) / lastCrossUnderPrice * 100)
crossUnderKDiffPercent = math.abs((currentCrossUnderK - lastCrossUnderK) / lastCrossUnderK * 100)

isKCloseCrossUnder = crossUnderKDiffPercent <= closeKThreshold and not na(lastCrossUnderK)

// New condition for long entry based on %K and refD_tf difference
kAndRefDDiffClose = crossOver and math.abs(currentCrossOverK - refD_tf) <= 0.15

// Labels for crossover and crossunder (optional)
if showLabels
    if crossOver
        diffKandRefD = math.abs(currentCrossOverK - refD_tf)
        label.new(bar_index, 50, "CrossOver\nDiff K-RefD: " + str.tostring(diffKandRefD, "#.###"), color=color.green, textcolor=color.black, style=label.style_label_up)
    if crossUnder
        diffKandRefD = math.abs(currentCrossUnderK - refD_tf)
        label.new(bar_index, 50, "CrossUnder\nDiff K-RefD: " + str.tostring(diffKandRefD, "#.###"), color=color.red, textcolor=color.black, style=label.style_label_down)

// Entry Conditions
longKCondition = crossOver and (na(lastCrossOverK) or currentCrossOverK > lastCrossOverK)
shortKCondition = crossUnder and (crossUnderPriceDiffPercent <= maxPriceDiff)
closeKShortCondition = crossUnder and isKCloseCrossUnder and (crossUnderPriceDiffPercent > minPriceDiffShort)
crossUnderBetween50and45 = crossUnder and currentCrossUnderK <= 50 and currentCrossUnderK > 45

// Long to Short if crossunder %K > 80 OR < 60
longToShortCondition = crossUnder and (currentCrossUnderK > 80 or currentCrossUnderK < 60) and strategy.position_size > 0 and is_regular_hours

upperLimit = refD_tf * (1 + tolerance/100)
lowerLimit = refD_tf * (1 - tolerance/100)
withinToleranceLong = primaryK_tf >= lowerLimit and primaryK_tf <= upperLimit
withinToleranceShort = primaryK_tf >= lowerLimit and primaryK_tf <= upperLimit

// Final Entry Conditions with MA filter
longCondition = ((longKCondition and (refD_tf >= 50 or refD_tf < 20)) or kAndRefDDiffClose) and is_regular_hours and not is_exit_time and priceAboveMA
shortCondition = (shortKCondition or (crossUnder and withinToleranceShort and (crossUnderPriceDiffPercent <= maxPriceDiff)) or closeKShortCondition or longToShortCondition or crossUnderBetween50and45) and is_regular_hours and not is_exit_time and priceBelowMA

// Short-to-Long Transition Condition with MA filter
shortToLongCondition = crossOver and currentCrossOverK < 25 and strategy.position_size < 0 and is_regular_hours and not is_exit_time and priceAboveMA

// Tracking for %K crossing under refD_tf
var float lastPrimaryKCrossUnderRefD = na
var float currentPrimaryKCrossUnderRefD = na
var bool isPrimaryKCrossUnderRefD = false

// Check if primary %K crosses under reference %D
isPrimaryKCrossUnderRefD := ta.crossunder(primaryK_tf, refD_tf)

// Update tracking for %K crossing under refD
if isPrimaryKCrossUnderRefD
    lastPrimaryKCrossUnderRefD := currentPrimaryKCrossUnderRefD
    currentPrimaryKCrossUnderRefD := primaryK_tf

// Exit Conditions
if is_exit_time
    strategy.close("Long")
    strategy.close("Short")
else if isPrimaryKCrossUnderRefD and not na(lastPrimaryKCrossUnderRefD) and currentPrimaryKCrossUnderRefD < lastPrimaryKCrossUnderRefD
    strategy.close("Long")
else if (ta.crossunder(primaryK_tf, primaryD_tf) and primaryK_tf < refD_tf and refD_tf < 60)
    strategy.close("Long")

if (ta.crossover(primaryK_tf, primaryD_tf) and primaryK_tf > refD_tf and refD_tf > 20) and not is_exit_time
    strategy.close("Short")

// Track if crossunder happens above 85
var bool crossUnderAbove85 = false

// Detect crossunder above 85
if crossUnder and currentCrossUnderK > 85
    crossUnderAbove85 := true

// Reset condition if %K crosses over %D
if ta.crossover(primaryK_tf, primaryD_tf)
    crossUnderAbove85 := false

// Track previous crossover/crossunder values for Higher Low/Lower High detection
var float prevCrossOverK = na
var float prevCrossUnderK = na

// Update previous values on new crossovers/crossunders
if crossOver
    prevCrossOverK := currentCrossOverK
if crossUnder
    prevCrossUnderK := currentCrossUnderK

// Higher Low and Lower High conditions
higherLowCondition = crossOver and not na(prevCrossOverK) and currentCrossOverK > prevCrossOverK
lowerHighCondition = crossUnder and not na(prevCrossUnderK) and currentCrossUnderK < prevCrossUnderK

// Strategy Entries and Transitions
if longCondition
    strategy.entry("Long", strategy.long)

if shortCondition
    if strategy.position_size > 0  // If in a long position, close it first
        strategy.close("Long")
    strategy.entry("Short", strategy.short)

if shortToLongCondition
    strategy.close("Short")
    if ((longKCondition and (refD_tf >= 50 or refD_tf < 20)) or kAndRefDDiffClose)  // Check full longCondition minus time (already checked)
        strategy.entry("Long", strategy.long)

// Add label for Short to Long Transition
if shortToLongCondition
    label.new(bar_index, na, "T", color=color.green, textcolor=color.white, style=label.style_label_up)

// Add label for Long to Short Transition
if longToShortCondition
    label.new(bar_index, na, "T", color=color.red, textcolor=color.white, style=label.style_label_down)

// Plotting
plot(primaryK_tf, "Primary %K", color=color.white, linewidth=1)
plot(primaryD_tf, "Primary %D", color=color.orange, linewidth=1)
plot(refK_tf, "Reference %K", color=color.navy, linewidth=1)
plot(refD_tf, "Reference %D", color=color.rgb(33, 233, 243), linewidth=2)

// Plot current and last %K only for crossUnder when isKCloseCrossUnder is true and currentCrossUnderK < lastCrossUnderK
plot(crossUnder and isKCloseCrossUnder and currentCrossUnderK < lastCrossUnderK ? currentCrossUnderK : na, "Current CrossUnder %K (Close)", color=color.green, style=plot.style_cross, linewidth=2)
plot(crossUnder and isKCloseCrossUnder and currentCrossUnderK < lastCrossUnderK ? lastCrossUnderK : na, "Last CrossUnder %K (Close)", color=color.red, style=plot.style_cross, linewidth=2)

h0 = hline(85, "Upper Band", color=color.rgb(242, 187, 21))
hline(50, "Middle Band", color=#eaff04)
h1 = hline(20, "Lower Band", color=color.rgb(242, 187, 21))
h2 = hline(40, "Lower Band", color=#787B86)
h3 = hline(60, "Lower Band", color=#787B86)
h = hline(0, "Lower Band", color=#787B86)
h5 = hline(100, "Lower Band", color=#787B86)
fill(h0, h1, color=color.rgb(33, 150, 243, 90), title="Background")
fill(h, h1, color=#1be2781d, title="Background")
fill(h0, h5, color=#e21b742d, title="Background")

// Plot the MA if enabled
plot(useMAFilter ? ma : na, "Moving Average", color=color.yellow, linewidth=2)

// Add plot for visualization (optional)
plot(isPrimaryKCrossUnderRefD ? primaryK_tf : na, "Primary %K CrossUnder RefD", color=color.purple, style=plot.style_cross, linewidth=2)
plot(isPrimaryKCrossUnderRefD and not na(lastPrimaryKCrossUnderRefD) ? lastPrimaryKCrossUnderRefD : na, "Last Primary %K CrossUnder RefD", color=color.fuchsia, style=plot.style_cross, linewidth=2)

// Add new alert conditions
alertcondition(higherLowCondition, title="Stoch Higher Low", message="Stoch Higher Low Pattern Detected")
alertcondition(lowerHighCondition, title="Stoch Lower High", message="Stoch Lower High Pattern Detected")

// Plot markers for Higher Low and Lower High patterns
plot(higherLowCondition ? currentCrossOverK : na, "Higher Low", color=color.green, style=plot.style_cross, linewidth=2)
plot(lowerHighCondition ? currentCrossUnderK : na, "Lower High", color=color.red, style=plot.style_cross, linewidth=2)

// Alert conditions
alertcondition(crossOver, title="Stochastic %K Crossed Over %D", message="Stochastic %K crossed over %D")
alertcondition(crossUnder, title="Stochastic %K Crossed Under %D", message="Stochastic %K crossed under %D")
alertcondition(crossOver and primaryK_tf > 50, title="Stochastic %K Crossed Over %D Above 50", message="Stochastic %K crossed over %D above 50")
alertcondition(crossOver and primaryK_tf > refD_tf, title="Stochastic %K Crossed Over %D Above Reference %D", message="Stochastic %K crossed over %D above Reference %D")
alertcondition(longCondition, title="Long Entry Signal", message="Long entry signal triggered")
alertcondition(shortCondition, title="Short Entry Signal", message="Short entry signal triggered")
alertcondition(shortToLongCondition, title="Short to Long Transition", message="Short to Long transition triggered")
alertcondition(longToShortCondition, title="Long to Short Transition", message="Long to Short transition triggered")
alertcondition(isPrimaryKCrossUnderRefD, title="Primary %K Crossed Under Reference %D", message="Primary %K crossed under Reference %D")
alertcondition(crossOver and primaryK_tf > refD_tf, title="Bullish Crossover Above Ref %D", message="Bull: Dual Stoch")
alertcondition(crossUnder and primaryK_tf < refD_tf, title="Bearish Crossunder Below Ref %D", message="Bear: Dual Stoch")