diff --git a/apps/trading/pages/markets/[marketId].page.tsx b/apps/trading/pages/markets/[marketId].page.tsx
index 463c3d16b..7f49456f4 100644
--- a/apps/trading/pages/markets/[marketId].page.tsx
+++ b/apps/trading/pages/markets/[marketId].page.tsx
@@ -20,6 +20,7 @@ const MARKET_QUERY = gql`
       tradingMode
       state
       decimalPlaces
+      positionDecimalPlaces
       data {
         market {
           id
diff --git a/apps/trading/pages/markets/__generated__/Market.ts b/apps/trading/pages/markets/__generated__/Market.ts
index 683136706..30ee4dfdb 100644
--- a/apps/trading/pages/markets/__generated__/Market.ts
+++ b/apps/trading/pages/markets/__generated__/Market.ts
@@ -144,6 +144,12 @@ export interface Market_market {
    * GBX (pence)        1              4       GBP   0.000001 (  0.0001p)
    */
   decimalPlaces: number;
+  /**
+   * positionDecimalPlaces indicated the number of decimal places that an integer must be shifted in order to get a correct size (uint64).
+   * i.e. 0 means there are no fractional orders for the market, and order sizes are always whole sizes.
+   * 2 means sizes given as 10^2 * desired size, e.g. a desired size of 1.23 is represented as 123 in this market.
+   */
+  positionDecimalPlaces: number;
   /**
    * marketData for the given market
    */
diff --git a/apps/trading/pages/markets/trade-grid.tsx b/apps/trading/pages/markets/trade-grid.tsx
index c59d44373..a3f70a56e 100644
--- a/apps/trading/pages/markets/trade-grid.tsx
+++ b/apps/trading/pages/markets/trade-grid.tsx
@@ -11,7 +11,7 @@ import { TradesContainer } from '@vegaprotocol/trades';
 import { PositionsContainer } from '@vegaprotocol/positions';
 import { OrderbookContainer } from '@vegaprotocol/market-depth';
 import type { Market_market } from './__generated__/Market';
-import { formatNumber, t } from '@vegaprotocol/react-helpers';
+import { addDecimalsFormatNumber, t } from '@vegaprotocol/react-helpers';
 import { AccountsContainer } from '@vegaprotocol/accounts';
 import { DepthChartContainer } from '@vegaprotocol/market-depth';
 import { CandlesChartContainer } from '@vegaprotocol/candles-chart';
@@ -89,7 +89,10 @@ export const TradeMarketHeader = ({
             <span className={itemClassName}>Volume</span>
             <span data-testid="trading-volume" className={itemValueClassName}>
               {market.data && market.data.indicativeVolume !== '0'
-                ? formatNumber(market.data.indicativeVolume)
+                ? addDecimalsFormatNumber(
+                    market.data.indicativeVolume,
+                    market.positionDecimalPlaces
+                  )
                 : '-'}
             </span>
           </div>