Histogram successfully pulls data from database when data exists.

DatabaseHandler/HistoricalRequestParser.cs

@@ -90,7 +90,18 @@ Console.WriteLine(raw);
 				_ => throw new ArgumentOutOfRangeException(nameof(barSize))
 			};
 
-			return Math.Max(1, (int)Math.Floor(duration.TotalSeconds / secondsPerBar));
+			// Markets trade ~6.5 hours/day, 5 days/week — not 24/7 calendar time.
+			// Intraday fraction: (6.5h × 5 days) / (24h × 7 days) ≈ 0.194
+			// Daily/weekly fraction (weekdays only): 5 / 7 ≈ 0.714
+			// Monthly bars already map 1:1 to calendar months, no adjustment needed.
+			double marketFraction = barSize switch
+			{
+				HistoricalBarSize.OneMonth => 1.0,
+				HistoricalBarSize.OneDay or HistoricalBarSize.FiveDays => 5.0 / 7.0,
+				_ => (6.5 * 5.0) / (24.0 * 7.0)
+			};
+
+			return Math.Max(1, (int)Math.Floor(duration.TotalSeconds * marketFraction / secondsPerBar));
 		}
 	}
 }