diff --git a/CHANGELOG.md b/CHANGELOG.md
index 14bdfe11a4..e46525f843 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Fixed
+
+- Fixed the net performance percentage of date ranges in the portfolio performance calculation which ignored the gross performance at the start date
+
 ## 3.71.0 - 2026-09-19
 
 ### Added