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GetRemainingTradingDays

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Syntax


public static int GetRemainingTradingDays(this DateTime DateFrom)

public static int GetRemainingTradingDays(DateTime DateFrom)

Parameter Description

DateFromFrom which date

Description

This function returns the approximate number of remaining trading days in a month. For example, it is useful with Strategies that enter X market days before the end of the month and exit on Y market day of the following month.

Note that even after handling weekends properly, you're still left with business (banking/trading) holiday schedule that varies from year to year. Careful accounting for these events takes a good deal of coding. You could go two ways about it:

  1. Devise/adapt a math formula for each such holiday and process it in run-time, or
  2. Use something like this Holiday WebService in your code. Ideally, you would cache the request results somewhere in Wealth-Lab's global memory, disk file or local database.

Example

Strategy below buys 6 market days before the end of the month and sells 2nd market day of the following month:

Example using C# extension methods:


using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using WealthLab;
using WealthLab.Indicators;

namespace WealthLab.Strategies { public class EOM : WealthScript { private StrategyParameter paramNth; private StrategyParameter paramDaysR; public EOM() { paramNth = CreateParameter("Nth", 2, 1, 4, 1); paramDaysR = CreateParameter("Remaining Days", 6, 2, 8, 1); } protected override void Execute() { int remaining = 0; int newMonth = -1; int days = paramDaysR.ValueInt; int Nth = paramNth.ValueInt; for(int bar = Math.Max( days, Nth ); bar < Bars.Count; bar++) { // Month has changed if( Date[bar].Month != Date[bar-1].Month ) newMonth = bar; // Remaining days are returned by this static method remaining = Date[bar].GetRemainingTradingDays(); if (IsLastPositionActive) { if( ( newMonth > 0 ) & ( bar == newMonth + Nth - 1 ) ) SellAtMarket( bar, LastPosition ); } else { if( remaining <= days ) BuyAtMarket( bar, remaining.ToString() ); } } } } }

Legacy syntax example:


using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using WealthLab;
using WealthLab.Indicators;
using Community.Components; /*** Requires installation of Community.Components Extension from www.wealth-lab.com > Extensions ***/

namespace WealthLab.Strategies { public class EOM : WealthScript { private StrategyParameter paramNth; private StrategyParameter paramDaysR; public EOM() { paramNth = CreateParameter("Nth", 2, 1, 4, 1); paramDaysR = CreateParameter("Remaining Days", 6, 2, 8, 1); } protected override void Execute() { int remaining = 0; int newMonth = -1; int days = paramDaysR.ValueInt; int Nth = paramNth.ValueInt; for(int bar = Math.Max( days, Nth ); bar < Bars.Count; bar++) { // Month has changed if( Date[bar].Month != Date[bar-1].Month ) newMonth = bar; // Remaining days are returned by this static method remaining = DateTimeFunctions.GetRemainingTradingDays( Date[bar] ); if (IsLastPositionActive) { if( ( newMonth > 0 ) & ( bar == newMonth + Nth - 1 ) ) SellAtMarket( bar, LastPosition ); } else { if( remaining <= days ) BuyAtMarket( bar, remaining.ToString() ); } } } } }

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