diff --git a/Extensions/PortfolioTradesExtensions.cs b/Extensions/PortfolioTradesExtensions.cs
new file mode 100644
index 0000000..cd9e7c7
--- /dev/null
+++ b/Extensions/PortfolioTradesExtensions.cs
@@ -0,0 +1,77 @@
+using MarketData.Generator.Interface;
+using MarketData.MarketDataModel;
+using MarketData.Utils;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TradeBlotter.Interface;
+using TradeBlotter.ViewModels;
+
+namespace TradeBlotter.Extensions
+{
+  public static class PortfolioTradesExtensions
+  {
+
+    public static PortfolioTrades FromSaveParams(SaveParameters saveParameters)
+    {
+      PortfolioTrades portfolioTrades=new PortfolioTrades();
+      int stopHistoryCount=int.Parse((from KeyValuePair<String,String> item in saveParameters where item.Key.Equals("PortfolioTradesCount") select item).FirstOrDefault().Value);
+      for(int index=0;index<stopHistoryCount;index++)
+      {
+        String strItemKey=String.Format("PortfolioTrade_{0}",index);
+        String strPortfolioTradeItem=(from KeyValuePair<String,String> item in saveParameters where item.Key.Equals(strItemKey) select item).FirstOrDefault().Value;
+        NVPCollection nvpCollection=new NVPCollection(strPortfolioTradeItem);
+        PortfolioTrade portfolioTrade=PortfolioTrade.FromNVPCollection(nvpCollection);
+        portfolioTrades.Add(portfolioTrade);
+      }
+      portfolioTrades=new PortfolioTrades(portfolioTrades.OrderBy(x => x.TradeDate).ToList());
+      return portfolioTrades;
+    }
+
+    public static SaveParameters FromPosition(IPositionModel position)
+    {
+      PortfolioTrades portfolioTrades = new PortfolioTrades();
+      SaveParameters saveParameters = new SaveParameters();
+
+      if(null == position) 
+      {
+        return saveParameters;
+      }
+
+      PortfolioTrade portfolioTrade = new PortfolioTrade()
+      {
+        Symbol = position.Symbol,
+        TradeDate = position.PurchaseDate,
+        Shares = position.Shares,
+        Price = position.PurchasePrice,
+        SellPrice = Utility.IsEpoch(position.SellDate)?double.NaN:position.CurrentPrice,
+        SellDate = position.SellDate                     ,
+        BuySell= Utility.IsEpoch(position.SellDate)?"B":"S",
+        Status= Utility.IsEpoch(position.SellDate)?"OPEN":"CLOSED",
+      };
+      portfolioTrades.Add(portfolioTrade);
+      return FromPortfolioTrades(portfolioTrades);
+    }
+
+    public static SaveParameters FromPortfolioTrades(PortfolioTrades portfolioTrades)
+    {
+      SaveParameters saveParameters = new SaveParameters();
+
+      if(null == portfolioTrades || 0==portfolioTrades.Count) 
+      {
+        return saveParameters;
+      }
+      StringBuilder sb = new StringBuilder();
+      NVPCollections nvpCollections = portfolioTrades.ToNVPCollections();
+      sb.Append("PortfolioTradesCount").Append(",").Append(String.Format("{0}", nvpCollections.Count)).Append(",");
+      for (int index = 0; index < nvpCollections.Count; index++)
+      {
+        sb.Append(String.Format("PortfolioTrade_{0}", index)).Append(",").Append(nvpCollections[index].ToString());
+        if (index < nvpCollections.Count - 1) sb.Append(",");
+      }
+      return SaveParameters.Parse(sb.ToString());
+    }
+  }
+}
diff --git a/Extensions/StopLimitExtensions.cs b/Extensions/StopLimitExtensions.cs
new file mode 100644
index 0000000..0ebfc80
--- /dev/null
+++ b/Extensions/StopLimitExtensions.cs
@@ -0,0 +1,48 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using MarketData.MarketDataModel;
+using System.Runtime.CompilerServices;
+using TradeBlotter.ViewModels;
+using MarketData.Utils;
+
+namespace TradeBlotter.Extensions
+{
+  public static class StopLimitsExtensions
+  {
+    public static StopLimits FromSaveParams(SaveParameters saveParameters)
+    {
+      StopLimits stopLimits=new StopLimits();
+      int stopHistoryCount=int.Parse((from KeyValuePair<String,String> item in saveParameters where item.Key.Equals("StopHistoryCount") select item).FirstOrDefault().Value);
+      for(int index=0;index<stopHistoryCount;index++)
+      {
+        String strItemKey=String.Format("StopHistory_{0}",index);
+        String strStopHistoryItem=(from KeyValuePair<String,String> item in saveParameters where item.Key.Equals(strItemKey) select item).FirstOrDefault().Value;
+        NVPCollection nvpCollection=new NVPCollection(strStopHistoryItem);
+        StopLimit stopLimit=MarketData.MarketDataModel.StopLimit.FromNVPCollection(nvpCollection);
+        stopLimits.Add(stopLimit);
+      }
+      stopLimits=new StopLimits(stopLimits.OrderBy(x => x.EffectiveDate).ToList());
+      return stopLimits;
+    }
+
+    public static SaveParameters FromStopLimits(this StopLimits stopLimits)
+    {
+      StringBuilder sb = new StringBuilder();
+      if(null==stopLimits || 0==stopLimits.Count)return new SaveParameters();
+      NVPCollections nvpCollections = stopLimits.ToNVPCollections();
+      sb.Append("StopHistoryCount").Append(",").Append(String.Format("{0}", nvpCollections.Count)).Append(",");
+      for (int index = 0; index < nvpCollections.Count; index++)
+      {
+        sb.Append(String.Format("StopHistory_{0}", index)).Append(",").Append(nvpCollections[index].ToString());
+        if (index < nvpCollections.Count - 1) sb.Append(",");
+      }
+      return SaveParameters.Parse(sb.ToString());
+    }
+  }
+}
+
+
+