diff --git a/src/view/layout.rs b/src/view/layout.rs
index ce26fd6..2d5b7b5 100644
--- a/src/view/layout.rs
+++ b/src/view/layout.rs
@@ -1,3 +1,5 @@
+use std::rc::Rc;
+
 use crate::model::cell::{CellKey, CellValue};
 use crate::model::Model;
 use crate::view::{Axis, View};
@@ -38,8 +40,8 @@ pub struct GridLayout {
     /// Categories on `Axis::None` — hidden, implicitly aggregated.
     pub none_cats: Vec<String>,
     /// In records mode: the filtered cell list, one per row.
-    /// None for normal pivot views.
-    pub records: Option<Vec<(CellKey, CellValue)>>,
+    /// None for normal pivot views. Rc for cheap sharing.
+    pub records: Option<Rc<Vec<(CellKey, CellValue)>>>,
 }
 
 impl GridLayout {
@@ -48,12 +50,11 @@ impl GridLayout {
     pub fn with_frozen_records(
         model: &Model,
         view: &View,
-        frozen_records: Option<Vec<(CellKey, CellValue)>>,
+        frozen_records: Option<Rc<Vec<(CellKey, CellValue)>>>,
     ) -> Self {
         let mut layout = Self::new(model, view);
         if layout.is_records_mode() {
             if let Some(records) = frozen_records {
-                // Re-build with the frozen records instead
                 let row_items: Vec<AxisEntry> = (0..records.len())
                     .map(|i| AxisEntry::DataItem(vec![i.to_string()]))
                     .collect();
@@ -183,7 +184,7 @@ impl GridLayout {
             row_items,
             col_items,
             none_cats,
-            records: Some(records),
+            records: Some(Rc::new(records)),
         }
     }
 
@@ -301,7 +302,7 @@ impl GridLayout {
                 .map(|i| AxisEntry::DataItem(vec![i.to_string()]))
                 .collect();
             self.row_items = new_row_items;
-            self.records = Some(new_records);
+            self.records = Some(Rc::new(new_records));
         }
     }