diff --git a/CryptoExchange.Net/SharedApis/Models/SharedIncrementalOrderBook.cs b/CryptoExchange.Net/SharedApis/Models/SharedIncrementalOrderBook.cs
new file mode 100644
index 00000000..0fb285b2
--- /dev/null
+++ b/CryptoExchange.Net/SharedApis/Models/SharedIncrementalOrderBook.cs
@@ -0,0 +1,25 @@
+using CryptoExchange.Net.Interfaces;
+
+namespace CryptoExchange.Net.SharedApis
+{
+    /// <summary>
+    /// Order book info
+    /// </summary>
+    public record SharedIncrementalOrderBook : SharedOrderBook
+    {
+        /// <summary>
+        /// The sequence number of the first book update in this update.
+        /// </summary>
+        public long? StartSequenceNumber { get; set; }
+
+        /// <summary>
+        /// ctor
+        /// </summary>
+        public SharedIncrementalOrderBook(SharedQuantityType quantityType, long? startSequenceNumber, long? endSequenceNumber, ISymbolOrderBookEntry[] asks, ISymbolOrderBookEntry[] bids)
+            :base(quantityType, endSequenceNumber, asks, bids)
+        {
+            StartSequenceNumber = startSequenceNumber;
+        }
+    }
+
+}
diff --git a/CryptoExchange.Net/SharedApis/SharedUtils.cs b/CryptoExchange.Net/SharedApis/SharedUtils.cs
index 557646dd..0a49c013 100644
--- a/CryptoExchange.Net/SharedApis/SharedUtils.cs
+++ b/CryptoExchange.Net/SharedApis/SharedUtils.cs
@@ -716,11 +716,11 @@ namespace CryptoExchange.Net.SharedApis
         public static IAsyncEnumerable<WebSocketResult<UpdateSubscription>> SubscribeAllAsync(
             this IEnumerable<SharedCapabilityResolution<ISubscribeIncrementalOrderBookSocket>> capabilities,
             SubscribeOrderBookRequest request,
-            Action<DataEvent<SharedOrderBook>> onData,
+            Action<DataEvent<SharedIncrementalOrderBook>> onData,
             CancellationToken ct = default)
         {
             return capabilities
-                .Select(x => x.Capability.SubscribeToOrderBookUpdatesAsync(request, onData, ct))
+                .Select(x => x.Capability.SubscribeToIncrementalOrderBookUpdatesAsync(request, onData, ct))
                 .ParallelEnumerateAsync();
         }
 
diff --git a/CryptoExchange.Net/SharedApis/V2/OrderBooks/SubscribeIncrementalOrderBook/ISubscribeIncrementalOrderBook.cs b/CryptoExchange.Net/SharedApis/V2/OrderBooks/SubscribeIncrementalOrderBook/ISubscribeIncrementalOrderBook.cs
index d99b2776..252bead8 100644
--- a/CryptoExchange.Net/SharedApis/V2/OrderBooks/SubscribeIncrementalOrderBook/ISubscribeIncrementalOrderBook.cs
+++ b/CryptoExchange.Net/SharedApis/V2/OrderBooks/SubscribeIncrementalOrderBook/ISubscribeIncrementalOrderBook.cs
@@ -14,7 +14,7 @@ namespace CryptoExchange.Net.SharedApis
         /// <summary>
         /// Order book subscription options
         /// </summary>
-        SubscribeOrderBookOptions SubscribeOrderBookOptions { get; }
+        SubscribeIncrementalOrderBookOptions SubscribeIncrementalOrderBookOptions { get; }
 
         /// <summary>
         /// Subscribe to incremental order book updates for a symbol
@@ -23,6 +23,6 @@ namespace CryptoExchange.Net.SharedApis
         /// <param name="handler">Update handler</param>
         /// <param name="ct">Cancellation token, can be used to stop the updates</param>
         /// <returns></returns>
-        Task<WebSocketResult<UpdateSubscription>> SubscribeToOrderBookUpdatesAsync(SubscribeOrderBookRequest request, Action<DataEvent<SharedOrderBook>> handler, CancellationToken ct = default);
+        Task<WebSocketResult<UpdateSubscription>> SubscribeToIncrementalOrderBookUpdatesAsync(SubscribeOrderBookRequest request, Action<DataEvent<SharedIncrementalOrderBook>> handler, CancellationToken ct = default);
     }
 }
diff --git a/CryptoExchange.Net/SharedApis/V2/OrderBooks/SubscribeIncrementalOrderBook/SubscribeIncrementalOrderBookOptions.cs b/CryptoExchange.Net/SharedApis/V2/OrderBooks/SubscribeIncrementalOrderBook/SubscribeIncrementalOrderBookOptions.cs
index 579680f0..543fb958 100644
--- a/CryptoExchange.Net/SharedApis/V2/OrderBooks/SubscribeIncrementalOrderBook/SubscribeIncrementalOrderBookOptions.cs
+++ b/CryptoExchange.Net/SharedApis/V2/OrderBooks/SubscribeIncrementalOrderBook/SubscribeIncrementalOrderBookOptions.cs
@@ -33,7 +33,7 @@ namespace CryptoExchange.Net.SharedApis
         /// ctor
         /// </summary>
         public SubscribeIncrementalOrderBookOptions(string exchange, bool needsAuthentication, int[] limits, SharedOrderBookSubscriptionType updateType)
-            : base(exchange, needsAuthentication, nameof(ISubscribeIncrementalOrderBookSocket.SubscribeToOrderBookUpdatesAsync), _defaultParameterRules)
+            : base(exchange, needsAuthentication, nameof(ISubscribeIncrementalOrderBookSocket.SubscribeToIncrementalOrderBookUpdatesAsync), _defaultParameterRules)
         {
             SupportedLimits = limits;
             UpdateType = updateType;