diff --git a/asset.py b/asset.py
index c33b7bc..b6b87f0 100644
--- a/asset.py
+++ b/asset.py
@@ -827,6 +827,12 @@ class Asset(SymbolMixin, ModelSQL, ModelView):
             ('product.identifiers.code',) + tuple(clause[1:]),
             ]
 
+    @classmethod
+    def after_update_actions(cls, assets):
+        """ run activities after rate-update
+        """
+        pass
+
     @classmethod
     def cron_update(cls):
         """ update asset-rates
@@ -837,10 +843,15 @@ class Asset(SymbolMixin, ModelSQL, ModelView):
         context = Transaction().context
 
         query_time = context.get('qdatetime', CurrentTimestamp())
+        to_run_activities = []
         for asset in Asset2.search([
                 ('nextupdate', '<=', query_time),
             ]):
-            OnlineSource.update_rate(asset)
+            if OnlineSource.update_rate(asset):
+                to_run_activities.append(asset)
+
+        if len(to_run_activities) > 0:
+            cls.after_update_actions(to_run_activities)
 
 # end Asset