diff --git a/src/components/customEcharts/size1920/index.vue b/src/components/customEcharts/size1920/index.vue
index d1ff55e..1e16169 100644
--- a/src/components/customEcharts/size1920/index.vue
+++ b/src/components/customEcharts/size1920/index.vue
@@ -87,6 +87,13 @@ const initEcharts = (data) => {
     animation: false,
     progressive: 500,
     progressiveThreshold: 3000,
+    // title: {
+    //   text: 'FiEE, Inc. Stock Price History',
+    // },
+    grid: {
+      left: '8%', // 或 '2%'，根据实际情况调整
+      right: '12%', // 给右侧y轴留空间，数值可根据y轴label宽度调整
+    },
     tooltip: {
       trigger: 'axis',
       axisPointer: {
@@ -331,15 +338,15 @@ function findClosestDateIndexDescLeft(data, targetDateStr) {
   let left = 0,
     right = data.length - 1
   const target = new Date(targetDateStr).getTime()
-  let res = -1 // 默认返回-1（找不到）
+  let res = -1
   while (left <= right) {
     const mid = Math.floor((left + right) / 2)
     const midTime = new Date(data[mid].date).getTime()
-    if (midTime < target) {
-      right = mid - 1 // 向左搜索，因为我们要找的是小于等于目标日期的最近一天
+    if (midTime > target) {
+      left = mid + 1 // mid 比目标新，往更旧的方向找
     } else {
-      res = mid // 记录当前找到的索引
-      left = mid + 1 // 向右搜索，因为更早的日期在数组后面
+      res = mid     // mid <= target，记录下来，继续往更新的方向找
+      right = mid - 1
     }
   }
   return res
diff --git a/src/components/customEcharts/size375/index.vue b/src/components/customEcharts/size375/index.vue
index dc53cd4..ed22a10 100644
--- a/src/components/customEcharts/size375/index.vue
+++ b/src/components/customEcharts/size375/index.vue
@@ -84,6 +84,10 @@ const initEcharts = (data) => {
     // title: {
     //   text: 'FiEE, Inc. Stock Price History',
     // },
+    grid: {
+      left: '8%', // 或 '2%'，根据实际情况调整
+      right: '15%', // 给右侧y轴留空间，数值可根据y轴label宽度调整
+    },
     tooltip: {
       trigger: 'axis',
       axisPointer: {
@@ -327,15 +331,15 @@ function findClosestDateIndexDescLeft(data, targetDateStr) {
   let left = 0,
     right = data.length - 1
   const target = new Date(targetDateStr).getTime()
-  let res = -1 // 默认返回-1（找不到）
+  let res = -1
   while (left <= right) {
     const mid = Math.floor((left + right) / 2)
     const midTime = new Date(data[mid].date).getTime()
-    if (midTime < target) {
-      right = mid - 1 // 向左搜索，因为我们要找的是小于等于目标日期的最近一天
+    if (midTime > target) {
+      left = mid + 1 // mid 比目标新，往更旧的方向找
     } else {
-      res = mid // 记录当前找到的索引
-      left = mid + 1 // 向右搜索，因为更早的日期在数组后面
+      res = mid     // mid <= target，记录下来，继续往更新的方向找
+      right = mid - 1
     }
   }
   return res