diff --git a/CertReports.Syncfusion/Models/UnderlyingChartModels.cs b/CertReports.Syncfusion/Models/UnderlyingChartModels.cs
new file mode 100644
index 0000000..b9ae2e4
--- /dev/null
+++ b/CertReports.Syncfusion/Models/UnderlyingChartModels.cs
@@ -0,0 +1,25 @@
+namespace CertReports.Syncfusion.Models;
+
+/// <summary>
+/// Singolo punto prezzo per il grafico standalone sottostante
+/// (da SP cedlab_Chart_UnderlyingOnly).
+/// </summary>
+public class UnderlyingChartPoint
+{
+    public DateTime Date { get; set; }
+    public decimal Px { get; set; }
+}
+
+/// <summary>
+/// Dati completi per il grafico standalone di un sottostante,
+/// senza alcun contesto certificato.
+/// </summary>
+public class UnderlyingChartData
+{
+    public int IDUnderlyings { get; set; }
+
+    /// <summary>Titolo del grafico: "{Name} ({Ticker_bbg})".</summary>
+    public string Nome { get; set; } = string.Empty;
+
+    public List<UnderlyingChartPoint> Points { get; set; } = new();
+}