The Magic of the Cabbage Harvester

Author: The Little Dream, Date: 2021-03-09 15:47:20
Tags: High-frequency

This is a strategic article:https://www.fmz.com/bbs-topic/6611


var TickInterval = 100

function LeeksReaper() {
    var self = {}
    self.numTick = 0
    self.lastTradeId = 0
    self.vol = 0
    self.askPrice = 0
    self.bidPrice = 0
    self.orderBook = {
        Asks: [],
        Bids: []
    }
    self.prices = []
    self.tradeOrderId = 0
    self.account = null
    self.buyPrice = 0
    self.sellPrice = 0
    self.state = 0
    self.depth = null

    self.updateTrades = function() {
        var trades = _C(exchange.GetTrades)
        if (self.prices.length == 0) {
            while (trades.length == 0) {
                trades = trades.concat(_C(exchange.GetTrades))
            }
            for (var i = 0; i < 15; i++) {
                self.prices[i] = trades[trades.length - 1].Price
            }
        }
        self.vol = 0.7 * self.vol + 0.3 * _.reduce(trades, function(mem, trade) {
            // Huobi not support trade.Id
            if ((trade.Id > self.lastTradeId) || (trade.Id == 0 && trade.Time > self.lastTradeId)) {
                self.lastTradeId = Math.max(trade.Id == 0 ? trade.Time : trade.Id, self.lastTradeId)
                mem += trade.Amount
            }
            return mem
        }, 0)

    }
    self.updateOrderBook = function() {
        var orderBook = _C(exchange.GetDepth)
        self.depth = orderBook
        self.buyPrice = orderBook.Bids[pendingLevel].Price
        self.sellPrice = orderBook.Asks[pendingLevel].Price
        self.orderBook = orderBook
        if (orderBook.Bids.length < 3 || orderBook.Asks.length < 3) {
            return
        }
        self.bidPrice = orderBook.Bids[0].Price * 0.618 + orderBook.Asks[0].Price * 0.382 + 0.01
        self.askPrice = orderBook.Bids[0].Price * 0.382 + orderBook.Asks[0].Price * 0.618 - 0.01
        self.prices.shift()
        self.prices.push(_N((orderBook.Bids[0].Price + orderBook.Asks[0].Price) * 0.15 +
            (orderBook.Bids[1].Price + orderBook.Asks[1].Price) * 0.1 +
            (orderBook.Bids[2].Price + orderBook.Asks[2].Price) * 0.1 +
            (orderBook.Bids[3].Price + orderBook.Asks[3].Price) * 0.075 +
            (orderBook.Bids[4].Price + orderBook.Asks[4].Price) * 0.05 +
            (orderBook.Bids[5].Price + orderBook.Asks[5].Price) * 0.025))
    }

    self.updateAccount = function() {
        var account = exchange.GetAccount()
        if (!account) {
            return
        }
        self.account = account
        LogProfit(parseFloat(account.Info.totalWalletBalance), account)
    }

    self.CancelAll = function() {
        while (1) {
            var orders = _C(exchange.GetOrders)
            if (orders.length == 0) {
                break
            }
            for (var i = 0; i < orders.length; i++) {
                exchange.CancelOrder(orders[i].Id)
            }
            Sleep(100)
        }
    }

    self.poll = function() {
        self.numTick++
        self.updateTrades()
        self.updateOrderBook()
        var pos = _C(exchange.GetPosition)

        var burstPrice = self.prices[self.prices.length - 1] * burstThresholdPct
        var bull = false
        var bear = false
        LogStatus(_D(), "\n", 'Tick:', self.numTick, 'self.vol:', self.vol, ', lastPrice:', self.prices[self.prices.length - 1], ', burstPrice: ', burstPrice)

        if (self.numTick > 2 && (
                self.prices[self.prices.length - 1] - _.max(self.prices.slice(-6, -1)) > burstPrice ||
                self.prices[self.prices.length - 1] - _.max(self.prices.slice(-6, -2)) > burstPrice && self.prices[self.prices.length - 1] > self.prices[self.prices.length - 2]
            )) {
            bull = true
        } else if (self.numTick > 2 && (
                self.prices[self.prices.length - 1] - _.min(self.prices.slice(-6, -1)) < -burstPrice ||
                self.prices[self.prices.length - 1] - _.min(self.prices.slice(-6, -2)) < -burstPrice && self.prices[self.prices.length - 1] < self.prices[self.prices.length - 2]
            )) {
            bear = true            
        }

        if (pos.length != 0) {
            if (pos[0].Type == PD_LONG) {
                self.state = 1
            } else {
                self.state = 2
            }
        } else {
            self.state = 0
        }


        if ((!bull && !bear)) {
            return
        }

        if (bull) {
            var price = (self.state == 0 || self.state == 1) ? self.buyPrice : self.depth.Bids[coverPendingLevel].Price
            var amount = (self.state == 0 || self.state == 1) ? pendingAmount : pos[0].Amount
            exchange.SetDirection("buy")
            exchange.Buy(price, amount)
        } else if (bear) {
            var price = (self.state == 0 || self.state == 2) ? self.sellPrice : self.depth.Asks[coverPendingLevel].Price
            var amount = (self.state == 0 || self.state == 2) ? pendingAmount : pos[0].Amount
            exchange.SetDirection("sell")
            exchange.Sell(price, amount)                    
        }
        self.numTick = 0
        Sleep(TickInterval)
        self.CancelAll()
        self.updateAccount()
    }

    while (!self.account) {
        self.updateAccount()
        Sleep(500)
    }
    Log("self.account:", self.account)

    return self
}

function main() {
    LogProfitReset()
    exchange.SetPrecision(pricePrecision, amountPrecision)
    exchange.SetContractType("swap")
    var reaper = LeeksReaper()  
    while (true) {
        reaper.poll()
        Sleep(100)
    }
}

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wh1578How much is the cost of the procedure, is there any specific data on the loss?

oscar459Does this still work now?

qslllIs there no way to retest?

EddieThe total number of dreams is 666.

diudiu.meiI'm not going to be able to afford to pay the bills.

The Little DreamThe environment in which the re-test is performed cannot be 100% restored to the actual recording.

itaaaaWhy is retesting not important?

The Little DreamThis tactic of retesting doesn't make much sense.