Buy-Hold-in-MetaStrategy-underinvests-cash

CODE:

using WealthLab.Backtest;
using System;
using WealthLab.Core;
using WealthLab.Data;
using WealthLab.Indicators;
using System.Collections.Generic;

namespace WealthScript4 
{
    public class MyStrategy : UserStrategyBase
    {
        //create indicators and other objects here, this is executed prior to the main trading loop
        public override void Initialize(BarHistory bars)
        {
        }

      //execute the strategy rules here, this is executed once for each bar in the backtest history
      public override void Execute(BarHistory bars, int idx)
      {
         if (!HasOpenPosition(bars, PositionType.Long))
            PlaceTrade(bars, TransactionType.Buy, OrderType.Market);
         else
         {
            //rebalance on first day of quarter
            DateTime dt = bars.DateTimes[idx];
            DateTime tomorrow = dt.AddDays(1);
            if (dt.Month != tomorrow.Month)
            {
               int mn = tomorrow.Month;
               if (mn == 1 || mn == 4 || mn == 7 || mn == 10)
               {
                  PlaceTrade(bars, TransactionType.Sell, OrderType.Market);
                  PlaceTrade(bars, TransactionType.Buy, OrderType.Market);
               }
            }
         }
      }
    }
}