diff --git a/Program.cs b/Program.cs
index e0a6de4..f5ca3b5 100644
--- a/Program.cs
+++ b/Program.cs
@@ -10,6 +10,8 @@ using Microsoft.Extensions.Options;
 using PolyTrader.Core.Configuration;
 using PolyTrader.Core.DependencyInjection;
 using PolyTrader.Core.Streaming;
+using PolyTrader.Core.Modularity;
+using PolyTrader.Modules.CopyTrading;
 using PolyTrader.Modules.CopyTrading.Persistence;
 using PolyTraderSharp.Models;
 using PolyTraderSharp.Services;
@@ -25,8 +27,11 @@ internal static class Program
 	{
 		ApplicationConfiguration.Initialize();
 
-		Channel<CopySignal> copySignalChannel = Channel.CreateUnbounded<CopySignal>();
-			Channel<ClosedTrade> closedTradeChannel = Channel.CreateUnbounded<ClosedTrade>();
+			var modules = new System.Collections.Generic.List<IPolyTraderModule>
+			{
+				new CopyTradingModule()
+			};
+
 			AppHost = Host.CreateDefaultBuilder().ConfigureServices(delegate(HostBuilderContext context, IServiceCollection services)
 			{
 				services.Configure<DatabaseOptions>(context.Configuration.GetSection(DatabaseOptions.SectionName));
@@ -37,15 +42,9 @@ internal static class Program
 					return client.GetDatabase(dbOptions.DatabaseName);
 				});
 				services.AddCorePersistence();
-				services.AddSingleton<ICopyTradeLogRepository, MongoCopyTradeLogRepository>();
 				services.AddSingleton<IBlockchainWssClientFactory, AlchemyWssClientFactory>();
 				services.AddSingleton((IServiceProvider sp) => ServerSettings.Load("server_settings.xml"));
 				services.AddSingleton<TradingState>();
-				services.AddSingleton<CopyTradingState>();
-				services.AddSingleton(copySignalChannel.Writer);
-				services.AddSingleton(copySignalChannel.Reader);
-				services.AddSingleton(closedTradeChannel.Writer);
-				services.AddSingleton(closedTradeChannel.Reader);
 				services.AddSingleton(delegate(IServiceProvider sp)
 				{
 					TerminalLogger requiredService2 = sp.GetRequiredService<TerminalLogger>();
@@ -76,16 +75,21 @@ internal static class Program
 				services.AddSingleton<MullvadVpnService>();
 				services.AddSingleton<ThreemaService>();
 				services.AddSingleton<JobManager>();
-				services.AddSingleton<TraderMonitorService>();
+
 				// MUSS als erster HostedService laufen: hydriert den State, bevor die
-				// Trading-Services (unten) gegen einen leeren State anlaufen.
+				// Trading-Services gegen einen leeren State anlaufen.
 				services.AddHostedService<StartupHydrationService>();
-				services.AddHostedService((IServiceProvider sp) => sp.GetRequiredService<TraderMonitorService>());
-				services.AddHostedService<CopyTradingEngine>();
+
+				// Module registrieren ihre eigenen Services/Channels/State selbst.
+				foreach (var module in modules)
+				{
+					services.AddSingleton(module);
+					module.RegisterServices(services, context.Configuration);
+				}
+
 				services.AddHostedService<AlchemyWebsocketService>();
 				services.AddHostedService<PersistenceService>();
 				services.AddHostedService<MarketSyncService>();
-				services.AddHostedService<TraderAnalyticsJob>();
 				services.AddHostedService<MasterTraderAnalyticsJob>();
 				services.AddHostedService<PolymarketWssClient>();
 				services.AddHostedService((IServiceProvider sp) => sp.GetRequiredService<MullvadVpnService>());
@@ -193,7 +197,11 @@ internal static class Program
 					return view;
 				}
 			});
-			// TODO Phase 5-UI: registrierte IPolyTraderModule durchlaufen und module.RegisterUi(uiHost) aufrufen.
+			// Modul-UI registrieren (Module steuern ihre Views selbst bei).
+			foreach (var module in modules)
+			{
+				module.RegisterUi(uiHost);
+			}
 
 			var launcher = AppHost.Services.GetRequiredService<PolyTraderSharp.Ui.LauncherForm>();
 			Application.Run(launcher);
diff --git a/src/PolyTrader.Modules.CopyTrading/CopyTradingModule.cs b/src/PolyTrader.Modules.CopyTrading/CopyTradingModule.cs
new file mode 100644
index 0000000..18da1b2
--- /dev/null
+++ b/src/PolyTrader.Modules.CopyTrading/CopyTradingModule.cs
@@ -0,0 +1,55 @@
+using System.Threading;
+using System.Threading.Tasks;
+using System.Threading.Channels;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using PolyTrader.Core.Modularity;
+using PolyTrader.Modules.CopyTrading.Persistence;
+using PolyTraderSharp;
+using PolyTraderSharp.Models;
+using PolyTraderSharp.Services;
+
+namespace PolyTrader.Modules.CopyTrading
+{
+    /// <summary>
+    /// Das Copytrading-Modul: registriert seinen eigenen State, seine Channels, sein
+    /// Trade-Log-Repository und seine Services selbst. Die App kennt nur den Contract.
+    /// </summary>
+    public class CopyTradingModule : IPolyTraderModule
+    {
+        public string Name => "CopyTrading";
+        public string DbPrefix => "ct_";
+
+        public void RegisterServices(IServiceCollection services, IConfiguration configuration)
+        {
+            // Copytrading-Hot-Path-State
+            services.AddSingleton<CopyTradingState>();
+
+            // Signal-/Trade-Channels des Moduls
+            var copySignalChannel = Channel.CreateUnbounded<CopySignal>();
+            var closedTradeChannel = Channel.CreateUnbounded<ClosedTrade>();
+            services.AddSingleton(copySignalChannel.Writer);
+            services.AddSingleton(copySignalChannel.Reader);
+            services.AddSingleton(closedTradeChannel.Writer);
+            services.AddSingleton(closedTradeChannel.Reader);
+
+            // Modul-eigener Trade-Log
+            services.AddSingleton<ICopyTradeLogRepository, MongoCopyTradeLogRepository>();
+
+            // Modul-Services (Signalquelle, Ausführung, Analytics)
+            services.AddSingleton<TraderMonitorService>();
+            services.AddHostedService(sp => sp.GetRequiredService<TraderMonitorService>());
+            services.AddHostedService<CopyTradingEngine>();
+            services.AddHostedService<TraderAnalyticsJob>();
+        }
+
+        public void RegisterUi(IModuleUiHost host)
+        {
+            // TODO: Master-Traders- und Geschlossene-Trades-Views als Modul-UI beisteuern.
+        }
+
+        public Task StartAsync(CancellationToken cancellationToken) => Task.CompletedTask;
+
+        public Task StopAsync(CancellationToken cancellationToken) => Task.CompletedTask;
+    }
+}
diff --git a/services/CopyTradingEngine.cs b/src/PolyTrader.Modules.CopyTrading/Services/CopyTradingEngine.cs
similarity index 99%
rename from services/CopyTradingEngine.cs
rename to src/PolyTrader.Modules.CopyTrading/Services/CopyTradingEngine.cs
index f338c75..11464a3 100644
--- a/services/CopyTradingEngine.cs
+++ b/src/PolyTrader.Modules.CopyTrading/Services/CopyTradingEngine.cs
@@ -1,7 +1,5 @@
 using System;
-using MongoDB.Driver;
 using PolyTrader.Core.Persistence;
-using PolyTraderSharp.Extensions;
 using System.Threading;
 using System.Threading.Channels;
 using System.Threading.Tasks;
diff --git a/services/TraderAnalyticsJob.cs b/src/PolyTrader.Modules.CopyTrading/Services/TraderAnalyticsJob.cs
similarity index 100%
rename from services/TraderAnalyticsJob.cs
rename to src/PolyTrader.Modules.CopyTrading/Services/TraderAnalyticsJob.cs
diff --git a/services/TraderMonitorService.cs b/src/PolyTrader.Modules.CopyTrading/Services/TraderMonitorService.cs
similarity index 100%
rename from services/TraderMonitorService.cs
rename to src/PolyTrader.Modules.CopyTrading/Services/TraderMonitorService.cs