diff --git a/apps/trading/components/orders-container/orders-container.tsx b/apps/trading/components/orders-container/orders-container.tsx
index c67979964..3f8d7a14b 100644
--- a/apps/trading/components/orders-container/orders-container.tsx
+++ b/apps/trading/components/orders-container/orders-container.tsx
@@ -28,14 +28,20 @@ export interface OrderContainerProps {
   filter?: Filter;
 }
 
+const AUTO_SIZE_COLUMNS = ['instrument-code'];
+
 export const OrdersContainer = ({ filter }: OrderContainerProps) => {
   const { pubKey, isReadOnly } = useVegaWallet();
   const onMarketClick = useMarketClickHandler(true);
   const onOrderTypeClick = useMarketLiquidityClickHandler();
   const { gridState, updateGridState } = useOrderListGridState(filter);
-  const gridStoreCallbacks = useDataGridEvents(gridState, (newState) => {
-    updateGridState(filter, newState);
-  });
+  const gridStoreCallbacks = useDataGridEvents(
+    gridState,
+    (newState) => {
+      updateGridState(filter, newState);
+    },
+    AUTO_SIZE_COLUMNS
+  );
 
   if (!pubKey) {
     return <Splash>{t('Please connect Vega wallet')}</Splash>;
diff --git a/libs/datagrid/src/lib/use-datagrid-events.ts b/libs/datagrid/src/lib/use-datagrid-events.ts
index 23aaf68e1..70a850be0 100644
--- a/libs/datagrid/src/lib/use-datagrid-events.ts
+++ b/libs/datagrid/src/lib/use-datagrid-events.ts
@@ -6,6 +6,7 @@ import type {
   FilterChangedEvent,
   FirstDataRenderedEvent,
   SortChangedEvent,
+  GridReadyEvent,
 } from 'ag-grid-community';
 import { useCallback } from 'react';
 
@@ -17,7 +18,8 @@ type State = {
 
 export const useDataGridEvents = (
   state: State,
-  callback: (data: State) => void
+  callback: (data: State) => void,
+  autoSizeColumns?: string[]
 ) => {
   /**
    * Callback for filter events
@@ -78,7 +80,7 @@ export const useDataGridEvents = (
    * State only applied if found, otherwise columns sized to fit available space
    */
   const onGridReady = useCallback(
-    ({ api, columnApi }: FirstDataRenderedEvent) => {
+    ({ api, columnApi }: GridReadyEvent) => {
       if (!api || !columnApi) return;
 
       if (state.columnState) {
@@ -97,6 +99,16 @@ export const useDataGridEvents = (
     [state]
   );
 
+  const onFirstDataRendered = useCallback(
+    ({ columnApi }: FirstDataRenderedEvent) => {
+      if (!columnApi) return;
+      if (!state?.columnState && autoSizeColumns?.length) {
+        columnApi.autoSizeColumns(autoSizeColumns);
+      }
+    },
+    [state, autoSizeColumns]
+  );
+
   return {
     onGridReady,
     // these events don't use the 'finished' flag
@@ -106,5 +118,6 @@ export const useDataGridEvents = (
     // these trigger a lot so this callback uses the 'finished' flag
     onColumnMoved: onDebouncedColumnChange,
     onColumnResized: onDebouncedColumnChange,
+    onFirstDataRendered,
   };
 };
diff --git a/libs/orders/src/lib/components/order-list/order-list.tsx b/libs/orders/src/lib/components/order-list/order-list.tsx
index a98821a53..a2c1ae04d 100644
--- a/libs/orders/src/lib/components/order-list/order-list.tsx
+++ b/libs/orders/src/lib/components/order-list/order-list.tsx
@@ -79,6 +79,7 @@ export const OrderListTable = memo<
         () => [
           {
             headerName: t('Market'),
+            colId: 'instrument-code',
             field: 'market.tradableInstrument.instrument.code',
             cellRenderer: 'MarketNameCell',
             cellRendererParams: { idPath: 'market.id', onMarketClick },