diff --git a/stockingly-frontend/src/components/StockPrice.vue b/stockingly-frontend/src/components/StockPrice.vue
index f315d2e..d4d31e3 100644
--- a/stockingly-frontend/src/components/StockPrice.vue
+++ b/stockingly-frontend/src/components/StockPrice.vue
@@ -111,7 +111,9 @@ const maxPrice = computed(() => {
     if (Date.parse(d.date) > maxDate) {
       maxDate = Date.parse(d.date);
       for (const ticker in maxVal) {
-        maxVal[ticker] = d[ticker] as number;
+        if (typeof d[ticker] === 'number' && !isNaN(d[ticker] as number)) {
+          maxVal[ticker] = d[ticker] as number;
+        }
       }
     }
   }