diff --git a/apps/api/src/app/portfolio/portfolio.service.ts b/apps/api/src/app/portfolio/portfolio.service.ts
index c15d06c1e..27bb044cc 100644
--- a/apps/api/src/app/portfolio/portfolio.service.ts
+++ b/apps/api/src/app/portfolio/portfolio.service.ts
@@ -226,7 +226,7 @@ export class PortfolioService {
           interestInBaseCurrency,
           transactionCount,
           valueInBaseCurrency,
-          allocationInPercentage: null, // TODO
+          allocationInPercentage: 0,
           balanceInBaseCurrency: this.exchangeRateDataService.toCurrency(
             account.balance,
             account.currency,
@@ -298,6 +298,11 @@ export class PortfolioService {
       transactionCount += account.transactionCount;
     }
 
+    for (const account of accounts) {
+      account.allocationInPercentage =
+        account.valueInBaseCurrency / totalValueInBaseCurrency.toNumber();
+    }
+
     return {
       accounts,
       transactionCount,