diff --git a/packages/kbn-optimizer/src/optimizer/get_output_stats.ts b/packages/kbn-optimizer/src/optimizer/get_output_stats.ts
index cc4cd05f42c3..82d1a276ccda 100644
--- a/packages/kbn-optimizer/src/optimizer/get_output_stats.ts
+++ b/packages/kbn-optimizer/src/optimizer/get_output_stats.ts
@@ -109,6 +109,11 @@ export function getMetrics(log: ToolingLog, config: OptimizerConfig) {
           id: bundle.id,
           value: sumSize(asyncChunks),
         },
+        {
+          group: `async chunk count`,
+          id: bundle.id,
+          value: asyncChunks.length,
+        },
         {
           group: `miscellaneous assets size`,
           id: bundle.id,