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 5b0907783..3ff0dd417 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
@@ -127,7 +127,7 @@ export class PortfolioProportionChartComponent
           chartData[this.positions[symbol][this.keys[0]]] = {
             name: this.positions[symbol].name,
             subCategory: {},
-            value: new Big(this.positions[symbol].value || 0)
+            value: new Big(this.positions[symbol].value ?? 0)
           };
 
           if (this.positions[symbol][this.keys[1]]) {