From 7837afb4e1898dcb4728f54669f5a73b4320cd57 Mon Sep 17 00:00:00 2001
From: Thomas Kaul <4159106+dtslvr@users.noreply.github.com>
Date: Sun, 28 Jun 2026 09:18:05 +0200
Subject: [PATCH] Fix phantom UNKNOWN slice caused by floating-point rounding

---
 .../portfolio-proportion-chart.component.ts                  | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libs/ui/src/lib/portfolio-proportion-chart/portfolio-proportion-chart.component.ts b/libs/ui/src/lib/portfolio-proportion-chart/portfolio-proportion-chart.component.ts
index bf6fd193e..e24446c34 100644
--- a/libs/ui/src/lib/portfolio-proportion-chart/portfolio-proportion-chart.component.ts
+++ b/libs/ui/src/lib/portfolio-proportion-chart/portfolio-proportion-chart.component.ts
@@ -204,8 +204,9 @@ export class GfPortfolioProportionChartComponent
 
       const unknownValueInPercentage = new Big(1).minus(totalValueInPercentage);
 
-      if (unknownValueInPercentage.gt(0)) {
-        // If total is below 100%, allocate the remaining percentage to UNKNOWN_KEY
+      // If total is below 100%, allocate the remaining percentage to UNKNOWN_KEY,
+      // but ignore negligible remainders to avoid a phantom slice
+      if (unknownValueInPercentage.gt(0.0001)) {
         if (chartData[UNKNOWN_KEY]) {
           chartData[UNKNOWN_KEY].value = chartData[UNKNOWN_KEY].value.plus(
             unknownValueInPercentage