diff --git a/dbt/models/marts/core/core_excellent_cohort_revenue.sql b/dbt/models/marts/core/core_excellent_cohort_revenue.sql
new file mode 100644
index 0000000..2607b6d
--- /dev/null
+++ b/dbt/models/marts/core/core_excellent_cohort_revenue.sql
@@ -0,0 +1,36 @@
+-- Total revenue summary for products in the Excellent rating cohort (avg_rating >= 4.5)
+-- Filters dim_products to rating_tier = 'Excellent' and aggregates revenue,
+-- profit, units sold, and margin metrics at the cohort level.
+with source as (
+
+    select
+        product_id,
+        product_name,
+        product_category,
+        avg_rating,
+        rating_tier,
+        total_units_sold,
+        product_total_revenue,
+        product_gross_profit,
+        margin_pct
+    from {{ ref('dim_products') }}
+    where rating_tier = 'Excellent'
+
+),
+
+final as (
+
+    select
+        rating_tier,
+        count(product_id)                   as product_count,
+        sum(product_total_revenue)          as total_revenue,
+        sum(product_gross_profit)           as total_gross_profit,
+        sum(total_units_sold)               as total_units_sold,
+        round(avg(avg_rating)::numeric, 2)  as avg_rating,
+        round(avg(margin_pct)::numeric, 4)  as avg_margin_pct
+    from source
+    group by rating_tier
+
+)
+
+select * from final