diff --git a/.changeset/smart-squids-jog.md b/.changeset/smart-squids-jog.md
new file mode 100644
index 00000000..2c31f744
--- /dev/null
+++ b/.changeset/smart-squids-jog.md
@@ -0,0 +1,7 @@
+---
+'@hyperdx/api': patch
+'@hyperdx/app': patch
+---
+
+fix: dense rank should be computed base on rank value and group (multi-series
+chart)
diff --git a/packages/api/src/clickhouse/index.ts b/packages/api/src/clickhouse/index.ts
index 70db8ef2..fd1bf752 100644
--- a/packages/api/src/clickhouse/index.ts
+++ b/packages/api/src/clickhouse/index.ts
@@ -1589,7 +1589,7 @@ export const queryMultiSeriesChart = async ({
         SELECT *, ?(?) OVER (PARTITION BY group) as rank_order_by_value
         FROM raw_groups
       ), final AS (
-        SELECT *, DENSE_RANK() OVER (ORDER BY rank_order_by_value ?) as rank
+        SELECT *, DENSE_RANK() OVER (ORDER BY rank_order_by_value ?, group) as rank
         FROM groups
       )
       SELECT *