diff --git a/libs/deal-ticket/src/components/deal-ticket/deal-ticket-container.tsx b/libs/deal-ticket/src/components/deal-ticket/deal-ticket-container.tsx
index 71d1d2588..b1deab59e 100644
--- a/libs/deal-ticket/src/components/deal-ticket/deal-ticket-container.tsx
+++ b/libs/deal-ticket/src/components/deal-ticket/deal-ticket-container.tsx
@@ -8,6 +8,7 @@ import {
   useStaticMarketData,
   useMarketPrice,
   marketInfoProvider,
+  markPriceProvider,
 } from '@vegaprotocol/markets';
 import { AsyncRendererInline } from '@vegaprotocol/ui-toolkit';
 import { DealTicket } from './deal-ticket';
@@ -46,7 +47,11 @@ export const DealTicketContainer = ({
     loading: marketDataLoading,
     reload,
   } = useStaticMarketData(marketId);
-  const { data: marketPrice } = useMarketPrice(market?.id);
+  const { data: marketPrice } = useMarketPrice(marketId);
+  const { data: markPrice } = useDataProvider({
+    dataProvider: markPriceProvider,
+    variables: { marketId },
+  });
   const create = useVegaTransactionStore((state) => state.create);
   return (
     <AsyncRendererInline
@@ -80,6 +85,7 @@ export const DealTicketContainer = ({
               }
               market={market}
               marketPrice={marketPrice}
+              markPrice={markPrice}
               marketData={marketData}
               submit={(transaction) => create(transaction)}
             />
diff --git a/libs/deal-ticket/src/components/deal-ticket/deal-ticket-fee-details.tsx b/libs/deal-ticket/src/components/deal-ticket/deal-ticket-fee-details.tsx
index bcefdb6e5..f2ddd4ef1 100644
--- a/libs/deal-ticket/src/components/deal-ticket/deal-ticket-fee-details.tsx
+++ b/libs/deal-ticket/src/components/deal-ticket/deal-ticket-fee-details.tsx
@@ -16,17 +16,17 @@ export interface DealTicketFeeDetailsProps {
   assetSymbol: string;
   order: OrderSubmissionBody['orderSubmission'];
   market: Market;
-  isMarketInAuction?: boolean;
+  marketIsInAuction?: boolean;
 }
 
 export const DealTicketFeeDetails = ({
   assetSymbol,
   order,
   market,
-  isMarketInAuction,
+  marketIsInAuction,
 }: DealTicketFeeDetailsProps) => {
   const t = useT();
-  const feeEstimate = useEstimateFees(order, isMarketInAuction);
+  const feeEstimate = useEstimateFees(order, marketIsInAuction);
   const asset = getAsset(market);
   const { decimals: assetDecimals, quantum } = asset;
 
diff --git a/libs/deal-ticket/src/components/deal-ticket/deal-ticket.tsx b/libs/deal-ticket/src/components/deal-ticket/deal-ticket.tsx
index 24452d05e..f5333f73d 100644
--- a/libs/deal-ticket/src/components/deal-ticket/deal-ticket.tsx
+++ b/libs/deal-ticket/src/components/deal-ticket/deal-ticket.tsx
@@ -97,6 +97,7 @@ export interface DealTicketProps {
   market: Market;
   marketData: StaticMarketData;
   marketPrice?: string | null;
+  markPrice?: string | null;
   onMarketClick?: (marketId: string, metaKey?: boolean) => void;
   submit: (order: Transaction) => void;
   onDeposit: (assetId: string) => void;
@@ -151,6 +152,7 @@ export const DealTicket = ({
   onMarketClick,
   marketData,
   marketPrice,
+  markPrice,
   submit,
   onDeposit,
 }: DealTicketProps) => {
@@ -393,6 +395,7 @@ export const DealTicket = ({
   const disableIcebergCheckbox = nonPersistentOrder;
   const featureFlags = useFeatureFlags((state) => state.flags);
   const sizeStep = determineSizeStep(market);
+  const marketIsInAuction = isMarketInAuction(marketData.marketTradingMode);
 
   const maxSize = useMaxSize({
     accountDecimals: accountDecimals ?? undefined,
@@ -401,7 +404,7 @@ export const DealTicket = ({
     marginAccountBalance,
     marginFactor: margin?.marginFactor,
     marginMode: margin?.marginMode,
-    marketPrice: marketPrice ?? undefined,
+    markPrice: markPrice ?? undefined,
     price,
     riskFactors,
     scalingFactors,
@@ -410,6 +413,7 @@ export const DealTicket = ({
     generalAccountBalance,
     openVolume,
     positionDecimalPlaces: market.positionDecimalPlaces,
+    marketIsInAuction,
   });
 
   const onSubmit = useCallback(
@@ -594,7 +598,7 @@ export const DealTicket = ({
           }
           assetSymbol={assetSymbol}
           market={market}
-          isMarketInAuction={isMarketInAuction(marketData.marketTradingMode)}
+          marketIsInAuction={marketIsInAuction}
         />
       </div>
       <Controller
diff --git a/libs/deal-ticket/src/hooks/use-max-size.ts b/libs/deal-ticket/src/hooks/use-max-size.ts
index 44efcf0b3..166ac66f6 100644
--- a/libs/deal-ticket/src/hooks/use-max-size.ts
+++ b/libs/deal-ticket/src/hooks/use-max-size.ts
@@ -13,7 +13,7 @@ export interface UseMaxSizeProps {
   marginAccountBalance: string;
   marginFactor?: string;
   marginMode?: MarginMode;
-  marketPrice?: string;
+  markPrice?: string;
   openVolume: string;
   positionDecimalPlaces: number;
   price?: string;
@@ -26,6 +26,7 @@ export interface UseMaxSizeProps {
   >;
   side: Side;
   type: OrderType;
+  marketIsInAuction: boolean;
 }
 
 export const useMaxSize = ({
@@ -43,7 +44,8 @@ export const useMaxSize = ({
   activeOrders,
   riskFactors,
   scalingFactors,
-  marketPrice,
+  markPrice,
+  marketIsInAuction,
 }: UseMaxSizeProps) =>
   useMemo(() => {
     let maxSize = new BigNumber(0);
@@ -67,10 +69,12 @@ export const useMaxSize = ({
         .div(marginFactor)
         .div(toBigNum(price, decimalPlaces));
     } else {
+      const effectivePrice =
+        type === OrderType.TYPE_LIMIT && marketIsInAuction ? price : markPrice;
       if (
         !scalingFactors?.initialMargin ||
         !riskFactors ||
-        !marketPrice ||
+        !effectivePrice ||
         accountDecimals === undefined
       ) {
         return 0;
@@ -87,7 +91,7 @@ export const useMaxSize = ({
           )
         )
         .div(scalingFactors.initialMargin)
-        .div(toBigNum(marketPrice, decimalPlaces));
+        .div(toBigNum(effectivePrice, decimalPlaces));
       maxSize = maxSize
         .minus(
           // subtract remaining orders
@@ -134,5 +138,6 @@ export const useMaxSize = ({
     activeOrders,
     riskFactors,
     scalingFactors,
-    marketPrice,
+    markPrice,
+    marketIsInAuction,
   ]);