diff --git a/DatamodelLibrary/Migrations/20220210222657_StockGroupTable.Designer.cs b/DatamodelLibrary/Migrations/20220210222657_StockGroupTable.Designer.cs
new file mode 100644
index 0000000..790d57e
--- /dev/null
+++ b/DatamodelLibrary/Migrations/20220210222657_StockGroupTable.Designer.cs
@@ -0,0 +1,212 @@
+// <auto-generated />
+using System;
+using DatamodelLibrary;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+namespace DatamodelLibrary.Migrations
+{
+    [DbContext(typeof(StockContext))]
+    [Migration("20220210222657_StockGroupTable")]
+    partial class StockGroupTable
+    {
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "5.0.6");
+
+            modelBuilder.Entity("DataDomain.Address", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Destination")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Nation")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Street")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Street2")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("Zipcode")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Addresses");
+                });
+
+            modelBuilder.Entity("DataDomain.BackupRegister", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTime>("BackedUp")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("BackupDbName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("BackupPath")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("DbName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("BackupRegings");
+                });
+
+            modelBuilder.Entity("DataDomain.Person", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<long>("AccountNo")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Born")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("ClearingNo")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Comments")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("FirstName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("HomeAddress")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("InvoiceAddress")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("LastName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("NickName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Persons");
+                });
+
+            modelBuilder.Entity("DataDomain.PersonStock", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Comment")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("PersonId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("StockId")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("PersonStocks");
+                });
+
+            modelBuilder.Entity("DataDomain.StockGroupModel", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("StockGroup")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("StockName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("StockGroups");
+                });
+
+            modelBuilder.Entity("DataDomain.StockMember", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<long>("ActAmount")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTime?>("ActDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("ActValue")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("BuyDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("BuyValue")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Comment")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<long>("PostAmount")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTime?>("SoldDate")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal>("SoldStockPrice")
+                        .HasColumnType("TEXT");
+
+                    b.Property<decimal?>("SoldValue")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("StockExtId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("StockId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Stocks");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/DatamodelLibrary/Migrations/20220210222657_StockGroupTable.cs b/DatamodelLibrary/Migrations/20220210222657_StockGroupTable.cs
new file mode 100644
index 0000000..357d861
--- /dev/null
+++ b/DatamodelLibrary/Migrations/20220210222657_StockGroupTable.cs
@@ -0,0 +1,340 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+namespace DatamodelLibrary.Migrations
+{
+    public partial class StockGroupTable : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "GroupName",
+                table: "StockGroups");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "StockId",
+                table: "Stocks",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "StockExtId",
+                table: "Stocks",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "Stocks",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "StockName",
+                table: "StockGroups",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AddColumn<string>(
+                name: "StockGroup",
+                table: "StockGroups",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "PersonStocks",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "NickName",
+                table: "Persons",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "LastName",
+                table: "Persons",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "FirstName",
+                table: "Persons",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comments",
+                table: "Persons",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Born",
+                table: "Persons",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "DbName",
+                table: "BackupRegings",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "BackupPath",
+                table: "BackupRegings",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "BackupDbName",
+                table: "BackupRegings",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Street2",
+                table: "Addresses",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Street",
+                table: "Addresses",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Nation",
+                table: "Addresses",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Destination",
+                table: "Addresses",
+                type: "TEXT",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "TEXT",
+                oldNullable: true);
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "StockGroup",
+                table: "StockGroups");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "StockId",
+                table: "Stocks",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "StockExtId",
+                table: "Stocks",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "Stocks",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "StockName",
+                table: "StockGroups",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AddColumn<string>(
+                name: "GroupName",
+                table: "StockGroups",
+                type: "TEXT",
+                nullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "PersonStocks",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "NickName",
+                table: "Persons",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "LastName",
+                table: "Persons",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "FirstName",
+                table: "Persons",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comments",
+                table: "Persons",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Born",
+                table: "Persons",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "DbName",
+                table: "BackupRegings",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "BackupPath",
+                table: "BackupRegings",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "BackupDbName",
+                table: "BackupRegings",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Street2",
+                table: "Addresses",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Street",
+                table: "Addresses",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Nation",
+                table: "Addresses",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Destination",
+                table: "Addresses",
+                type: "TEXT",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "TEXT");
+        }
+    }
+}
diff --git a/DatamodelLibrary/Migrations/StockContextModelSnapshot.cs b/DatamodelLibrary/Migrations/StockContextModelSnapshot.cs
index e43a9f1..5e1ce8c 100644
--- a/DatamodelLibrary/Migrations/StockContextModelSnapshot.cs
+++ b/DatamodelLibrary/Migrations/StockContextModelSnapshot.cs
@@ -23,15 +23,19 @@ namespace DatamodelLibrary.Migrations
                         .HasColumnType("INTEGER");
 
                     b.Property<string>("Destination")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.Property<string>("Nation")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.Property<string>("Street")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.Property<string>("Street2")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.Property<int>("Zipcode")
@@ -52,12 +56,15 @@ namespace DatamodelLibrary.Migrations
                         .HasColumnType("TEXT");
 
                     b.Property<string>("BackupDbName")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.Property<string>("BackupPath")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.Property<string>("DbName")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.HasKey("Id");
@@ -75,15 +82,18 @@ namespace DatamodelLibrary.Migrations
                         .HasColumnType("INTEGER");
 
                     b.Property<string>("Born")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.Property<int>("ClearingNo")
                         .HasColumnType("INTEGER");
 
                     b.Property<string>("Comments")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.Property<string>("FirstName")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.Property<int>("HomeAddress")
@@ -93,9 +103,11 @@ namespace DatamodelLibrary.Migrations
                         .HasColumnType("INTEGER");
 
                     b.Property<string>("LastName")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.Property<string>("NickName")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.HasKey("Id");
@@ -110,6 +122,7 @@ namespace DatamodelLibrary.Migrations
                         .HasColumnType("INTEGER");
 
                     b.Property<string>("Comment")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.Property<int>("PersonId")
@@ -123,16 +136,18 @@ namespace DatamodelLibrary.Migrations
                     b.ToTable("PersonStocks");
                 });
 
-            modelBuilder.Entity("DataDomain.ShareModel", b =>
+            modelBuilder.Entity("DataDomain.StockGroupModel", b =>
                 {
                     b.Property<int>("Id")
                         .ValueGeneratedOnAdd()
                         .HasColumnType("INTEGER");
 
-                    b.Property<string>("GroupName")
+                    b.Property<string>("StockGroup")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.Property<string>("StockName")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.HasKey("Id");
@@ -162,6 +177,7 @@ namespace DatamodelLibrary.Migrations
                         .HasColumnType("TEXT");
 
                     b.Property<string>("Comment")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.Property<long>("PostAmount")
@@ -177,9 +193,11 @@ namespace DatamodelLibrary.Migrations
                         .HasColumnType("TEXT");
 
                     b.Property<string>("StockExtId")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.Property<string>("StockId")
+                        .IsRequired()
                         .HasColumnType("TEXT");
 
                     b.HasKey("Id");
diff --git a/DatamodelLibrary/StockContext.cs b/DatamodelLibrary/StockContext.cs
index fad847f..4e2fe2b 100644
--- a/DatamodelLibrary/StockContext.cs
+++ b/DatamodelLibrary/StockContext.cs
@@ -15,7 +15,7 @@ namespace DatamodelLibrary
         public DbSet<Address> Addresses { get; set; }
         public DbSet<PersonStock> PersonStocks { get; set; }
         public DbSet<BackupRegister> BackupRegings { get; set; }
-        public DbSet<ShareModel> StockGroups { get; set; }
+        public DbSet<StockGroupModel> StockGroups { get; set; }
 
         protected override void OnConfiguring(DbContextOptionsBuilder options)
             => options.UseSqlite(@"Data Source=.\Stocks.db");