diff --git a/apps/api/src/app/portfolio/calculator/roai/portfolio-calculator-btceur-in-base-currency-eur.spec.ts b/apps/api/src/app/portfolio/calculator/roai/portfolio-calculator-btceur-in-base-currency-eur.spec.ts
new file mode 100644
index 000000000..87893e647
--- /dev/null
+++ b/apps/api/src/app/portfolio/calculator/roai/portfolio-calculator-btceur-in-base-currency-eur.spec.ts
@@ -0,0 +1,140 @@
+import { Activity } from '@ghostfolio/api/app/order/interfaces/activities.interface';
+import {
+  activityDummyData,
+  loadExportFile,
+  symbolProfileDummyData,
+  userDummyData
+} from '@ghostfolio/api/app/portfolio/calculator/portfolio-calculator-test-utils';
+import { PortfolioCalculatorFactory } from '@ghostfolio/api/app/portfolio/calculator/portfolio-calculator.factory';
+import { CurrentRateService } from '@ghostfolio/api/app/portfolio/current-rate.service';
+import { CurrentRateServiceMock } from '@ghostfolio/api/app/portfolio/current-rate.service.mock';
+import { RedisCacheService } from '@ghostfolio/api/app/redis-cache/redis-cache.service';
+import { RedisCacheServiceMock } from '@ghostfolio/api/app/redis-cache/redis-cache.service.mock';
+import { ConfigurationService } from '@ghostfolio/api/services/configuration/configuration.service';
+import { ExchangeRateDataService } from '@ghostfolio/api/services/exchange-rate-data/exchange-rate-data.service';
+import { ExchangeRateDataServiceMock } from '@ghostfolio/api/services/exchange-rate-data/exchange-rate-data.service.mock';
+import { PortfolioSnapshotService } from '@ghostfolio/api/services/queues/portfolio-snapshot/portfolio-snapshot.service';
+import { PortfolioSnapshotServiceMock } from '@ghostfolio/api/services/queues/portfolio-snapshot/portfolio-snapshot.service.mock';
+import { parseDate } from '@ghostfolio/common/helper';
+import { ExportResponse } from '@ghostfolio/common/interfaces';
+import { PerformanceCalculationType } from '@ghostfolio/common/types/performance-calculation-type.type';
+
+import { Big } from 'big.js';
+import { join } from 'node:path';
+
+jest.mock('@ghostfolio/api/app/portfolio/current-rate.service', () => {
+  return {
+    CurrentRateService: jest.fn().mockImplementation(() => {
+      return CurrentRateServiceMock;
+    })
+  };
+});
+
+jest.mock(
+  '@ghostfolio/api/services/exchange-rate-data/exchange-rate-data.service',
+  () => {
+    return {
+      ExchangeRateDataService: jest.fn().mockImplementation(() => {
+        return ExchangeRateDataServiceMock;
+      })
+    };
+  }
+);
+
+jest.mock(
+  '@ghostfolio/api/services/queues/portfolio-snapshot/portfolio-snapshot.service',
+  () => {
+    return {
+      PortfolioSnapshotService: jest.fn().mockImplementation(() => {
+        return PortfolioSnapshotServiceMock;
+      })
+    };
+  }
+);
+
+jest.mock('@ghostfolio/api/app/redis-cache/redis-cache.service', () => {
+  return {
+    RedisCacheService: jest.fn().mockImplementation(() => {
+      return RedisCacheServiceMock;
+    })
+  };
+});
+
+describe('PortfolioCalculator', () => {
+  let exportResponse: ExportResponse;
+
+  let configurationService: ConfigurationService;
+  let currentRateService: CurrentRateService;
+  let exchangeRateDataService: ExchangeRateDataService;
+  let portfolioCalculatorFactory: PortfolioCalculatorFactory;
+  let portfolioSnapshotService: PortfolioSnapshotService;
+  let redisCacheService: RedisCacheService;
+
+  beforeAll(() => {
+    exportResponse = loadExportFile(
+      join(__dirname, '../../../../../../../test/import/ok/btceur.json')
+    );
+  });
+
+  beforeEach(() => {
+    configurationService = new ConfigurationService();
+
+    currentRateService = new CurrentRateService(null, null, null, null);
+
+    exchangeRateDataService = new ExchangeRateDataService(
+      null,
+      null,
+      null,
+      null
+    );
+
+    portfolioSnapshotService = new PortfolioSnapshotService(null);
+
+    redisCacheService = new RedisCacheService(null, null);
+
+    portfolioCalculatorFactory = new PortfolioCalculatorFactory(
+      configurationService,
+      currentRateService,
+      exchangeRateDataService,
+      portfolioSnapshotService,
+      redisCacheService
+    );
+  });
+
+  describe('get current positions', () => {
+    it.only('with BTCUSD buy (in EUR)', async () => {
+      jest.useFakeTimers().setSystemTime(parseDate('2022-01-14').getTime());
+
+      const activities: Activity[] = exportResponse.activities.map(
+        (activity) => ({
+          ...activityDummyData,
+          ...activity,
+          date: parseDate(activity.date),
+          feeInAssetProfileCurrency: 4.46,
+          SymbolProfile: {
+            ...symbolProfileDummyData,
+            currency: 'USD',
+            dataSource: activity.dataSource,
+            name: 'Bitcoin',
+            symbol: activity.symbol
+          },
+          unitPriceInAssetProfileCurrency: 44558.42
+        })
+      );
+
+      const portfolioCalculator = portfolioCalculatorFactory.createCalculator({
+        activities,
+        calculationType: PerformanceCalculationType.ROAI,
+        currency: 'EUR',
+        userId: userDummyData.id
+      });
+
+      const portfolioSnapshot = await portfolioCalculator.computeSnapshot();
+
+      expect(portfolioSnapshot.positions[0].fee).toEqual(new Big(4.46));
+      expect(
+        portfolioSnapshot.positions[0].feeInBaseCurrency.toNumber()
+      ).toBeCloseTo(3.94, 1);
+    });
+  });
+});
diff --git a/apps/api/src/services/exchange-rate-data/exchange-rate-data.service.mock.ts b/apps/api/src/services/exchange-rate-data/exchange-rate-data.service.mock.ts
index 8f5d1c28a..076375523 100644
--- a/apps/api/src/services/exchange-rate-data/exchange-rate-data.service.mock.ts
+++ b/apps/api/src/services/exchange-rate-data/exchange-rate-data.service.mock.ts
@@ -17,11 +17,21 @@ export const ExchangeRateDataServiceMock = {
           '2023-07-10': 0.8854
         }
       });
+    } else if (targetCurrency === 'EUR') {
+      return Promise.resolve({
+        EUREUR: {
+          '2021-12-12': 1
+        },
+        USDEUR: {
+          '2021-12-12': 0.8855
+        }
+      });
     } else if (targetCurrency === 'USD') {
       return Promise.resolve({
         USDUSD: {
           '2018-01-01': 1,
           '2021-11-16': 1,
+          '2021-12-12': 1,
           '2023-07-10': 1
         }
       });
diff --git a/package.json b/package.json
index 512f61b6d..04014d5d5 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
     "test": "npm run test:api && npm run test:common",
     "test:api": "npx dotenv-cli -e .env.example -- nx test api",
     "test:common": "npx dotenv-cli -e .env.example -- nx test common",
-    "test:single": "nx run api:test --test-file object.helper.spec.ts",
+    "test:single": "nx run api:test --test-file portfolio-calculator-btceur-in-base-currency-eur.spec.ts",
     "ts-node": "ts-node",
     "update": "nx migrate latest",
     "watch:server": "nx run api:copy-assets && nx run api:build --watch",