diff --git a/Dalamud/Game/Network/Internal/MarketBoardUploaders/MarketBoardItemRequest.cs b/Dalamud/Game/Network/Internal/MarketBoardUploaders/MarketBoardItemRequest.cs
index 63d51f0e1..bdd07a8af 100644
--- a/Dalamud/Game/Network/Internal/MarketBoardUploaders/MarketBoardItemRequest.cs
+++ b/Dalamud/Game/Network/Internal/MarketBoardUploaders/MarketBoardItemRequest.cs
@@ -1,4 +1,6 @@
+using System;
 using System.Collections.Generic;
+using System.IO;
 
 using Dalamud.Game.Network.Structures;
 
@@ -9,25 +11,29 @@ namespace Dalamud.Game.Network.Internal.MarketBoardUploaders
     /// </summary>
     internal class MarketBoardItemRequest
     {
-        /// <summary>
-        /// Gets or sets the catalog ID.
-        /// </summary>
-        public uint CatalogId { get; set; }
+        private MarketBoardItemRequest()
+        {
+        }
 
         /// <summary>
-        /// Gets or sets the amount to arrive.
+        /// Gets the catalog ID.
         /// </summary>
-        public byte AmountToArrive { get; set; }
+        public uint CatalogId { get; private set; }
 
         /// <summary>
-        /// Gets or sets the offered item listings.
+        /// Gets the amount to arrive.
         /// </summary>
-        public List<MarketBoardCurrentOfferings.MarketBoardItemListing> Listings { get; set; }
+        public byte AmountToArrive { get; private set; }
 
         /// <summary>
-        /// Gets or sets the historical item listings.
+        /// Gets the offered item listings.
         /// </summary>
-        public List<MarketBoardHistory.MarketBoardHistoryListing> History { get; set; }
+        public List<MarketBoardCurrentOfferings.MarketBoardItemListing> Listings { get; } = new();
+
+        /// <summary>
+        /// Gets the historical item listings.
+        /// </summary>
+        public List<MarketBoardHistory.MarketBoardHistoryListing> History { get; } = new();
 
         /// <summary>
         /// Gets or sets the listing request ID.
@@ -38,5 +44,24 @@ namespace Dalamud.Game.Network.Internal.MarketBoardUploaders
         /// Gets a value indicating whether the upload is complete.
         /// </summary>
         public bool IsDone => this.Listings.Count == this.AmountToArrive && this.History.Count != 0;
+
+        /// <summary>
+        /// Read a packet off the wire.
+        /// </summary>
+        /// <param name="dataPtr">Packet data.</param>
+        /// <returns>An object representing the data read.</returns>
+        public static unsafe MarketBoardItemRequest Read(IntPtr dataPtr)
+        {
+            using var stream = new UnmanagedMemoryStream((byte*)dataPtr.ToPointer(), 1544);
+            using var reader = new BinaryReader(stream);
+
+            var output = new MarketBoardItemRequest();
+
+            output.CatalogId = reader.ReadUInt32();
+            stream.Position += 0x7;
+            output.AmountToArrive = reader.ReadByte();
+
+            return output;
+        }
     }
 }
diff --git a/Dalamud/Game/Network/Structures/MarketBoardHistory.cs b/Dalamud/Game/Network/Structures/MarketBoardHistory.cs
index c73529da3..d753b0498 100644
--- a/Dalamud/Game/Network/Structures/MarketBoardHistory.cs
+++ b/Dalamud/Game/Network/Structures/MarketBoardHistory.cs
@@ -20,17 +20,17 @@ namespace Dalamud.Game.Network.Structures
         /// <summary>
         /// Gets the catalog ID.
         /// </summary>
-        public uint CatalogId { get; internal set; }
+        public uint CatalogId { get; private set; }
 
         /// <summary>
         /// Gets the second catalog ID.
         /// </summary>
-        public uint CatalogId2 { get; internal set; }
+        public uint CatalogId2 { get; private set; }
 
         /// <summary>
         /// Gets the list of individual item history listings.
         /// </summary>
-        public List<MarketBoardHistoryListing> HistoryListings { get; internal set; }
+        public List<MarketBoardHistoryListing> HistoryListings { get; } = new();
 
         /// <summary>
         /// Read a <see cref="MarketBoardHistory"/> object from memory.
@@ -39,17 +39,15 @@ namespace Dalamud.Game.Network.Structures
         /// <returns>A new <see cref="MarketBoardHistory"/> object.</returns>
         public static unsafe MarketBoardHistory Read(IntPtr dataPtr)
         {
-            var output = new MarketBoardHistory();
-
             using var stream = new UnmanagedMemoryStream((byte*)dataPtr.ToPointer(), 1544);
             using var reader = new BinaryReader(stream);
 
+            var output = new MarketBoardHistory();
+
             output.CatalogId = reader.ReadUInt32();
             output.CatalogId2 = reader.ReadUInt32();
 
-            output.HistoryListings = new List<MarketBoardHistoryListing>();
-
-            for (var i = 0; i < 10; i++)
+            for (var i = 0; i < 20; i++)
             {
                 var listingEntry = new MarketBoardHistoryListing
                 {
@@ -63,10 +61,12 @@ namespace Dalamud.Game.Network.Structures
 
                 listingEntry.OnMannequin = reader.ReadBoolean();
                 listingEntry.BuyerName = Encoding.UTF8.GetString(reader.ReadBytes(33)).TrimEnd('\u0000');
-                listingEntry.CatalogId = reader.ReadUInt32();
+                listingEntry.NextCatalogId = reader.ReadUInt32();
 
-                if (listingEntry.CatalogId != 0)
-                    output.HistoryListings.Add(listingEntry);
+                output.HistoryListings.Add(listingEntry);
+
+                if (listingEntry.NextCatalogId == 0)
+                    break;
             }
 
             return output;
@@ -90,9 +90,9 @@ namespace Dalamud.Game.Network.Structures
             public string BuyerName { get; internal set; }
 
             /// <summary>
-            /// Gets the catalog ID.
+            /// Gets the next entry's catalog ID.
             /// </summary>
-            public uint CatalogId { get; internal set; }
+            public uint NextCatalogId { get; internal set; }
 
             /// <summary>
             /// Gets a value indicating whether the item is HQ.
diff --git a/Dalamud/Game/Network/Structures/MarketBoardPurchase.cs b/Dalamud/Game/Network/Structures/MarketBoardPurchase.cs
index ed8051154..5fc0de786 100644
--- a/Dalamud/Game/Network/Structures/MarketBoardPurchase.cs
+++ b/Dalamud/Game/Network/Structures/MarketBoardPurchase.cs
@@ -9,6 +9,10 @@ namespace Dalamud.Game.Network.Structures
     /// </summary>
     internal class MarketBoardPurchase
     {
+        private MarketBoardPurchase()
+        {
+        }
+
         /// <summary>
         /// Gets the item ID of the item that was purchased.
         /// </summary>
@@ -26,10 +30,11 @@ namespace Dalamud.Game.Network.Structures
         /// <returns>An object representing the data read.</returns>
         public static unsafe MarketBoardPurchase Read(IntPtr dataPtr)
         {
-            var output = new MarketBoardPurchase();
-
             using var stream = new UnmanagedMemoryStream((byte*)dataPtr.ToPointer(), 1544);
             using var reader = new BinaryReader(stream);
+
+            var output = new MarketBoardPurchase();
+
             output.CatalogId = reader.ReadUInt32();
             stream.Position += 4;
             output.ItemQuantity = reader.ReadUInt32();
diff --git a/Dalamud/Game/Network/Structures/MarketBoardPurchaseHandler.cs b/Dalamud/Game/Network/Structures/MarketBoardPurchaseHandler.cs
index 98d7007b0..0557b0e0d 100644
--- a/Dalamud/Game/Network/Structures/MarketBoardPurchaseHandler.cs
+++ b/Dalamud/Game/Network/Structures/MarketBoardPurchaseHandler.cs
@@ -9,6 +9,10 @@ namespace Dalamud.Game.Network.Structures
     /// </summary>
     internal class MarketBoardPurchaseHandler
     {
+        private MarketBoardPurchaseHandler()
+        {
+        }
+
         /// <summary>
         /// Gets the object ID of the retainer associated with the sale.
         /// </summary>
@@ -41,10 +45,11 @@ namespace Dalamud.Game.Network.Structures
         /// <returns>An object representing the data read.</returns>
         public static unsafe MarketBoardPurchaseHandler Read(IntPtr dataPtr)
         {
-            var output = new MarketBoardPurchaseHandler();
-
             using var stream = new UnmanagedMemoryStream((byte*)dataPtr.ToPointer(), 1544);
             using var reader = new BinaryReader(stream);
+
+            var output = new MarketBoardPurchaseHandler();
+
             output.RetainerId = reader.ReadUInt64();
             output.ListingId = reader.ReadUInt64();
             output.CatalogId = reader.ReadUInt32();
diff --git a/Dalamud/Game/Network/Structures/MarketTaxRates.cs b/Dalamud/Game/Network/Structures/MarketTaxRates.cs
index 5b27b9415..4fb6a2b13 100644
--- a/Dalamud/Game/Network/Structures/MarketTaxRates.cs
+++ b/Dalamud/Game/Network/Structures/MarketTaxRates.cs
@@ -8,42 +8,39 @@ namespace Dalamud.Game.Network.Structures
     /// </summary>
     public class MarketTaxRates
     {
-        /// <summary>
-        /// Initializes a new instance of the <see cref="MarketTaxRates"/> class.
-        /// </summary>
-        internal MarketTaxRates()
+        private MarketTaxRates()
         {
         }
 
         /// <summary>
         /// Gets the tax rate in Limsa Lominsa.
         /// </summary>
-        public uint LimsaLominsaTax { get; internal set; }
+        public uint LimsaLominsaTax { get; private set; }
 
         /// <summary>
         /// Gets the tax rate in Gridania.
         /// </summary>
-        public uint GridaniaTax { get; internal set; }
+        public uint GridaniaTax { get; private set; }
 
         /// <summary>
         /// Gets the tax rate in Ul'dah.
         /// </summary>
-        public uint UldahTax { get; internal set; }
+        public uint UldahTax { get; private set; }
 
         /// <summary>
         /// Gets the tax rate in Ishgard.
         /// </summary>
-        public uint IshgardTax { get; internal set; }
+        public uint IshgardTax { get; private set; }
 
         /// <summary>
         /// Gets the tax rate in Kugane.
         /// </summary>
-        public uint KuganeTax { get; internal set; }
+        public uint KuganeTax { get; private set; }
 
         /// <summary>
         /// Gets the tax rate in the Crystarium.
         /// </summary>
-        public uint CrystariumTax { get; internal set; }
+        public uint CrystariumTax { get; private set; }
 
         /// <summary>
         /// Read a <see cref="MarketTaxRates"/> object from memory.
@@ -52,13 +49,12 @@ namespace Dalamud.Game.Network.Structures
         /// <returns>A new <see cref="MarketTaxRates"/> object.</returns>
         public static unsafe MarketTaxRates Read(IntPtr dataPtr)
         {
-            var output = new MarketTaxRates();
-
             using var stream = new UnmanagedMemoryStream((byte*)dataPtr.ToPointer(), 1544);
             using var reader = new BinaryReader(stream);
 
-            stream.Position += 8;
+            var output = new MarketTaxRates();
 
+            stream.Position += 8;
             output.LimsaLominsaTax = reader.ReadUInt32();
             output.GridaniaTax = reader.ReadUInt32();
             output.UldahTax = reader.ReadUInt32();