diff --git a/IEXSharp/Helper/JSONConverters.cs b/IEXSharp/Helper/JSONConverters.cs
index 12af9fe0..e29d64c9 100644
--- a/IEXSharp/Helper/JSONConverters.cs
+++ b/IEXSharp/Helper/JSONConverters.cs
@@ -35,70 +35,109 @@ public override void Write(Utf8JsonWriter writer, string value,
 	}
 
 	/// <summary> Allow both quoted and unquoted numbers on  deserialize. </summary>
-	public class Int32Converter : JsonConverter<int>
+	public class Int32Converter : JsonConverter<int?>
 	{
-		public override int Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+		public override int? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
 		{
 			if (reader.TokenType == JsonTokenType.String)
 			{
-				string stringValue = reader.GetString();
-				if (int.TryParse(stringValue, out int value))
+				var stringValue = reader.GetString();
+				if (int.TryParse(stringValue, out var value))
 					return value;
+
+				return null;
 			}
-			else if (reader.TokenType == JsonTokenType.Number)
+
+			if (reader.TokenType == JsonTokenType.Number)
 				return reader.GetInt32();
 
 			throw new JsonException();
 		}
 
-		public override void Write(Utf8JsonWriter writer, int value,
-			JsonSerializerOptions options) => writer.WriteNumberValue(value);
+		public override void Write(Utf8JsonWriter writer, int? input,
+			JsonSerializerOptions options)
+		{
+			if (input.HasValue)
+			{
+				writer.WriteNumberValue(input.Value);
+			}
+			else
+			{
+				writer.WriteNullValue();
+			}
+		}
 	}
 
 	/// <summary> Allow both quoted and unquoted numbers on  deserialize. </summary>
-	public class Int64Converter : JsonConverter<long>
+	public class Int64Converter : JsonConverter<long?>
 	{
-		public override long Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+		public override long? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
 		{
 			if (reader.TokenType == JsonTokenType.String)
 			{
-				string stringValue = reader.GetString();
-				if (long.TryParse(stringValue, out long value))
+				var stringValue = reader.GetString();
+				if (long.TryParse(stringValue, out var value))
 				{
 					return value;
 				}
+
+				return null;
 			}
-			else if (reader.TokenType == JsonTokenType.Number)
+
+			if (reader.TokenType == JsonTokenType.Number)
 				return reader.GetInt64();
 
 			throw new JsonException();
 		}
 
-		public override void Write(Utf8JsonWriter writer, long value,
-			JsonSerializerOptions options) => writer.WriteNumberValue(value);
+		public override void Write(Utf8JsonWriter writer, long? input,
+			JsonSerializerOptions options)
+		{
+			if (input.HasValue)
+			{
+				writer.WriteNumberValue(input.Value);
+			}
+			else
+			{
+				writer.WriteNullValue();
+			}
+		}
 	}
 
 	/// <summary> Allow both quoted and unquoted numbers on  deserialize. </summary>
-	public class DecimalConverter : JsonConverter<decimal>
+	public class DecimalConverter : JsonConverter<decimal?>
 	{
-		public override decimal Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+		public override decimal? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
 		{
 			if (reader.TokenType == JsonTokenType.String)
 			{
-				string stringValue = reader.GetString();
-				if (decimal.TryParse(stringValue, out decimal value))
+				var stringValue = reader.GetString();
+				if (decimal.TryParse(stringValue, out var value))
 				{
 					return value;
 				}
+
+				return null;
 			}
-			else if (reader.TokenType == JsonTokenType.Number)
+
+			if (reader.TokenType == JsonTokenType.Number)
 				return reader.GetDecimal();
 
 			throw new JsonException();
 		}
 
-		public override void Write(Utf8JsonWriter writer, decimal value,
-			JsonSerializerOptions options) => writer.WriteNumberValue(value);
+		public override void Write(Utf8JsonWriter writer, decimal? input,
+			JsonSerializerOptions options)
+		{
+			if (input.HasValue)
+			{
+				writer.WriteNumberValue(input.Value);
+			}
+			else
+			{
+				writer.WriteNullValue();
+			}
+		}
 	}
 
 	/// <summary>