From c33a17671b805e15dba1056efb3b0e79e27e4a7e Mon Sep 17 00:00:00 2001
From: Thomas Kaul <4159106+dtslvr@users.noreply.github.com>
Date: Mon, 31 Aug 2026 20:42:26 +0200
Subject: [PATCH] Bugfix/additional data point at start of chart in holding
 detail dialog (#7778)

* Fix additional data point at start of chart in holding detail dialog

* Update changelog
---
 CHANGELOG.md                                    | 1 +
 apps/api/src/app/portfolio/portfolio.service.ts | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index d2af41573..8389b0533 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,6 +25,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed the cash positions being included in the by continent, by country and by sector charts on the allocations page and the public page
 - Fixed the allocations in percentage exceeding 100% in the restricted view
 - Fixed the portfolio calculation for holdings with activities before the first known historical market price by falling back to the unit price of the activity
+- Fixed the additional data point at the start of the chart in the holding detail dialog for instances running in a time zone other than UTC
 - Fixed the missing country mapping of _Virgin Islands (British)_ in the _Financial Modeling Prep_ service
 
 ## 3.64.0 - 2026-08-30
diff --git a/apps/api/src/app/portfolio/portfolio.service.ts b/apps/api/src/app/portfolio/portfolio.service.ts
index af98200b7..3f8ff055a 100644
--- a/apps/api/src/app/portfolio/portfolio.service.ts
+++ b/apps/api/src/app/portfolio/portfolio.service.ts
@@ -76,6 +76,7 @@ import {
 } from '@ghostfolio/common/types';
 import { PerformanceCalculationType } from '@ghostfolio/common/types/performance-calculation-type.type';
 
+import { utc } from '@date-fns/utc';
 import { Inject, Injectable, Logger } from '@nestjs/common';
 import { REQUEST } from '@nestjs/core';
 import {
@@ -995,7 +996,7 @@ export class PortfolioService {
     const historicalData = await this.dataProviderService.getHistorical(
       [{ dataSource, symbol }],
       'day',
-      parseISO(dateOfFirstActivity),
+      parseISO(dateOfFirstActivity, { in: utc }),
       new Date()
     );