diff --git a/app/src/main/java/com/example/tampopo_client/viewmodels/ActivityViewModel.java b/app/src/main/java/com/example/tampopo_client/viewmodels/ActivityViewModel.java
index 3d15caf..0c74253 100644
--- a/app/src/main/java/com/example/tampopo_client/viewmodels/ActivityViewModel.java
+++ b/app/src/main/java/com/example/tampopo_client/viewmodels/ActivityViewModel.java
@@ -39,6 +39,7 @@
     private final MutableLiveData<Activity> myLatestActivityLiveData; // 自分の最新のアクティビティ
     private final Map<String, MutableLiveData<List<Activity>>> friendToActivitiesLiveData; // <フレンドのユーザーID, フレンドのアクティビティのリスト>
     private final MutableLiveData<List<String>> friendUserIdsLiveData; // フレンドのユーザーIDのリスト
+    private final MutableLiveData<List<Activity>> allFriendsLatestActivitiesLiveData; // 全フレンドの最新アクティビティのリスト
 
     private final String myUserId;
     private final String myToken;
@@ -65,6 +66,7 @@
         friendToActivitiesLiveData = new HashMap<>();
         friendUserIdsLiveData = new MutableLiveData<>(List.of());
         myLatestActivityLiveData = new MutableLiveData<>(null);
+        allFriendsLatestActivitiesLiveData = new MutableLiveData<>(new ArrayList<>()); // 初期化
 
         userActivityStatusChangeListeners = new ArrayList<>();
     }
@@ -109,11 +111,13 @@
 
             // 自分のフレンドの最新のアクティビティを取得して更新する
             if (friendUserIdsLiveData.isInitialized() && friendUserIdsLiveData.getValue() != null) {
+                List<Activity> latestActivities = new ArrayList<>();
                 for (String userId : friendUserIdsLiveData.getValue()) {
                     pullLatestActivity(userId, activitiesResource, new ActivityFetchCallback() {
                         @Override
                         public void onSuccess(Activity activity) {
                             updateFriendToActivitiesLiveData(activity, userId);
+                            latestActivities.add(activity);
                         }
 
                         @Override
@@ -122,6 +126,7 @@
                         }
                     });
                 }
+                allFriendsLatestActivitiesLiveData.postValue(latestActivities);
             }
 
             if (friendUserIdsLiveData.isInitialized()) {
@@ -314,6 +319,10 @@
         return friendUserIdsLiveData;
     }
 
+    public MutableLiveData<List<Activity>> getAllFriendsLatestActivitiesLiveData() {
+        return allFriendsLatestActivitiesLiveData;
+    }
+
     public String getMyUserId() {
         return myUserId;
     }