.dart

  Future<void> load() async {

    final list = await Future.wait([Webservice().getStocks(), Webservice().getTopNews()]);

    stocks = list.first.map((stock) => StockViewModel(stock: stock)).toList(); // stocks 
    newsArticles = list.last.map((newsArticle) => NewsArticleViewModel(newsArticle: newsArticle)).toList(); // news articles 

    notifyListeners(); 
}