diff --git a/openmetadata-ui/src/main/resources/ui/src/utils/DataQuality/TestSummaryGraphUtils.test.ts b/openmetadata-ui/src/main/resources/ui/src/utils/DataQuality/TestSummaryGraphUtils.test.ts
index ee4a5ffba2d..997508e400d 100644
--- a/openmetadata-ui/src/main/resources/ui/src/utils/DataQuality/TestSummaryGraphUtils.test.ts
+++ b/openmetadata-ui/src/main/resources/ui/src/utils/DataQuality/TestSummaryGraphUtils.test.ts
@@ -99,6 +99,95 @@ describe('prepareChartData', () => {
     });
   });
 
+  it('should handle min/max bound correctly', () => {
+    const testObj = {
+      testCaseParameterValue: [],
+      testCaseResults: [
+        {
+          timestamp: 1720525804736,
+          testCaseStatus: 'Failed',
+          result:
+            'Found max=1720520076998 vs.  the expected min=1720165283528.0, max=1720275283528.0.',
+          testResultValue: [
+            {
+              name: 'max',
+              value: '1720520076998',
+            },
+          ],
+          incidentId: '3093dbee-196b-4284-9f97-7103063d0dd7',
+          maxBound: 1720275283528,
+        },
+        {
+          timestamp: 1720525503943,
+          testCaseStatus: 'Failed',
+          result:
+            'Found max=1720520076998 vs.  the expected min=1720165283528.0, max=1720275283528.0.',
+          testResultValue: [
+            {
+              name: 'max',
+              value: '1720520076998',
+            },
+          ],
+          incidentId: '3093dbee-196b-4284-9f97-7103063d0dd7',
+          minBound: 1720165283528,
+        },
+        {
+          timestamp: 1720525503943,
+          testCaseStatus: 'Failed',
+          result:
+            'Found max=1720520076998 vs.  the expected min=1720165283528.0, max=1720275283528.0.',
+          testResultValue: [
+            {
+              name: 'max',
+              value: '1720520076998',
+            },
+          ],
+          incidentId: '3093dbee-196b-4284-9f97-7103063d0dd7',
+          maxBound: 1720275283528,
+          minBound: 1720165283528,
+        },
+      ],
+      entityThread: [],
+    } as PrepareChartDataType;
+
+    const result = prepareChartData(testObj);
+
+    expect(result).toEqual({
+      data: [
+        {
+          boundArea: [1720165283528, 1720275283528],
+          incidentId: '3093dbee-196b-4284-9f97-7103063d0dd7',
+          max: 1720520076998,
+          name: 1720525503943,
+          status: 'Failed',
+          task: undefined,
+        },
+        {
+          boundArea: undefined,
+          incidentId: '3093dbee-196b-4284-9f97-7103063d0dd7',
+          max: 1720520076998,
+          name: 1720525503943,
+          status: 'Failed',
+          task: undefined,
+        },
+        {
+          boundArea: undefined,
+          incidentId: '3093dbee-196b-4284-9f97-7103063d0dd7',
+          max: 1720520076998,
+          name: 1720525804736,
+          status: 'Failed',
+          task: undefined,
+        },
+      ],
+      information: [
+        {
+          color: '#7147E8',
+          label: 'max',
+        },
+      ],
+    });
+  });
+
   it('should handle empty testCaseParameterValue correctly', () => {
     const testObj = {
       testCaseParameterValue: [],
diff --git a/openmetadata-ui/src/main/resources/ui/src/utils/DataQuality/TestSummaryGraphUtils.ts b/openmetadata-ui/src/main/resources/ui/src/utils/DataQuality/TestSummaryGraphUtils.ts
index e07859597ff..16c40449fae 100644
--- a/openmetadata-ui/src/main/resources/ui/src/utils/DataQuality/TestSummaryGraphUtils.ts
+++ b/openmetadata-ui/src/main/resources/ui/src/utils/DataQuality/TestSummaryGraphUtils.ts
@@ -55,16 +55,16 @@ export const prepareChartData = ({
         ? undefined
         : `${round(result.failedRowsPercentage, 2)}%`,
     };
+    const y1 = result?.minBound ?? yValues.y1;
+    const y2 = result?.maxBound ?? yValues.y2;
+    const boundArea = isUndefined(y1) || isUndefined(y2) ? undefined : [y1, y2];
 
     dataPoints.push({
       name: result.timestamp,
       status: result.testCaseStatus,
       ...values,
       ...omitBy(metric, isUndefined),
-      boundArea: [
-        result?.minBound ?? yValues.y1,
-        result?.maxBound ?? yValues.y2,
-      ],
+      boundArea,
       incidentId: result.incidentId,
       task: entityThread.find(
         (task) => task.task?.testCaseResolutionStatusId === result.incidentId