diff --git a/CHANGELOG.md b/CHANGELOG.md
index eedf1b79c..a7aad3c6c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -47,6 +47,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+- Fixed a crash on the _Overview_, _Portfolio_ and _Holdings_ pages when exchange rate data is missing (e.g. before the data gathering job completes)
 - Fixed an issue with the detection of the thousand separator for the `de-CH` locale
 - Fixed an issue in the _Storybook_ stories of the symbol autocomplete component caused by a circular dependency
 
diff --git a/apps/api/src/app/activities/activities.service.ts b/apps/api/src/app/activities/activities.service.ts
index 89b9468f8..e686b456f 100644
--- a/apps/api/src/app/activities/activities.service.ts
+++ b/apps/api/src/app/activities/activities.service.ts
@@ -702,32 +702,34 @@ export class ActivitiesService {
           feeInBaseCurrency,
           unitPriceInAssetProfileCurrency,
           valueInBaseCurrency
-        ] = await Promise.all([
-          this.exchangeRateDataService.toCurrencyAtDate(
-            order.fee,
-            order.currency ?? order.SymbolProfile.currency,
-            order.SymbolProfile.currency,
-            order.date
-          ),
-          this.exchangeRateDataService.toCurrencyAtDate(
-            order.fee,
-            order.currency ?? order.SymbolProfile.currency,
-            userCurrency,
-            order.date
-          ),
-          this.exchangeRateDataService.toCurrencyAtDate(
-            order.unitPrice,
-            order.currency ?? order.SymbolProfile.currency,
-            order.SymbolProfile.currency,
-            order.date
-          ),
-          this.exchangeRateDataService.toCurrencyAtDate(
-            value,
-            order.currency ?? order.SymbolProfile.currency,
-            userCurrency,
-            order.date
-          )
-        ]);
+        ] = (
+          await Promise.all([
+            this.exchangeRateDataService.toCurrencyAtDate(
+              order.fee,
+              order.currency ?? order.SymbolProfile.currency,
+              order.SymbolProfile.currency,
+              order.date
+            ),
+            this.exchangeRateDataService.toCurrencyAtDate(
+              order.fee,
+              order.currency ?? order.SymbolProfile.currency,
+              userCurrency,
+              order.date
+            ),
+            this.exchangeRateDataService.toCurrencyAtDate(
+              order.unitPrice,
+              order.currency ?? order.SymbolProfile.currency,
+              order.SymbolProfile.currency,
+              order.date
+            ),
+            this.exchangeRateDataService.toCurrencyAtDate(
+              value,
+              order.currency ?? order.SymbolProfile.currency,
+              userCurrency,
+              order.date
+            )
+          ])
+        ).map((result) => result ?? 0);
 
         return {
           ...order,
diff --git a/apps/api/src/app/portfolio/portfolio.service.ts b/apps/api/src/app/portfolio/portfolio.service.ts
index 60b413cf9..a18944e57 100644
--- a/apps/api/src/app/portfolio/portfolio.service.ts
+++ b/apps/api/src/app/portfolio/portfolio.service.ts
@@ -195,21 +195,21 @@ export class PortfolioService {
           switch (type) {
             case ActivityType.DIVIDEND:
               dividendInBaseCurrency +=
-                await this.exchangeRateDataService.toCurrencyAtDate(
+                (await this.exchangeRateDataService.toCurrencyAtDate(
                   new Big(quantity).mul(unitPrice).toNumber(),
                   currency ?? SymbolProfile.currency,
                   userCurrency,
                   date
-                );
+                )) ?? 0;
               break;
             case ActivityType.INTEREST:
               interestInBaseCurrency +=
-                await this.exchangeRateDataService.toCurrencyAtDate(
+                (await this.exchangeRateDataService.toCurrencyAtDate(
                   unitPrice,
                   currency ?? SymbolProfile.currency,
                   userCurrency,
                   date
-                );
+                )) ?? 0;
               break;
           }
 
diff --git a/apps/api/src/services/exchange-rate-data/exchange-rate-data.service.ts b/apps/api/src/services/exchange-rate-data/exchange-rate-data.service.ts
index 024bdf4e1..8af434512 100644
--- a/apps/api/src/services/exchange-rate-data/exchange-rate-data.service.ts
+++ b/apps/api/src/services/exchange-rate-data/exchange-rate-data.service.ts
@@ -349,7 +349,7 @@ export class ExchangeRateDataService {
       'ExchangeRateDataService'
     );
 
-    return undefined;
+    return 0;
   }
 
   private async getExchangeRates({