Feature/improve symbol validation in Yahoo Finance service (ghostfolio#4445)

* Improve symbol validation

* Update changelog

Author: dtslvr

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
+
+### Changed
+
+- Improved the symbol validation in the _Yahoo Finance_ service (get asset profiles)
+
 ## 2.146.0 - 2025-03-15
 
 ### Changed

apps/api/src/services/data-provider/data-enhancer/yahoo-finance/yahoo-finance.service.ts

@@ -170,6 +170,8 @@ export class YahooFinanceDataEnhancerService implements DataEnhancerInterface {
             symbol = quotes[0].symbol;
           }
         } catch {}
+      } else if (symbol?.includes('-')) {
+        throw new Error(`${symbol} is not valid`);
       } else {
         symbol = this.convertToYahooFinanceSymbol(symbol);
       }