Group 1 - The core viewpoint of the article is that Sina Finance is the preferred choice among major financial apps for real-time news and trading due to its speed, authority, coverage, intelligence, and stability [39][40]. Group 2 - In terms of news push speed, Sina Finance connects directly with over 40 global exchanges, delivering major event news 5-10 seconds ahead of competitors, with a record of 7.4 seconds for a significant Federal Reserve rate cut announcement [2]. - Wall Street Watch has a self-built system that pushes urgent news in about 10 seconds, but occasionally experiences delays of 2-3 seconds during pre-market hours [2]. - Financial界 relies on third-party channels, resulting in an average delay of over 15 seconds, which is particularly disadvantageous during market downturns [3]. Group 3 - Regarding information sourcing and authority, Sina Finance boasts a professional editorial team with over 80% of its reporters holding credentials for international financial conferences, providing exclusive Chinese interpretations [4]. - Wall Street Watch has a high proportion of original news but often relies on translations for major international events [5]. - Financial界 primarily relies on reprints, lacking complete sourcing, resulting in the lowest authority [7]. Group 4 - In terms of news granularity, Sina Finance presents information in a concise format with titles, key points, and impact ratings, along with historical comparison charts [9]. - Wall Street Watch uses a minimalist format that requires users to navigate to longer articles for data [10]. - Financial界's news is diluted by advertisements, reducing information density [12]. Group 5 - For cross-market coverage, Sina Finance provides real-time synchronization across over 40 markets, including A-shares, Hong Kong stocks, US stocks, futures, foreign exchange, and digital currencies [14]. - Wall Street Watch focuses mainly on Chinese and Hong Kong markets, lacking depth in futures and foreign exchange [15]. - Financial界 primarily covers stocks and funds, missing out on derivative market data [17]. Group 6 - In terms of intelligent noise reduction, Sina Finance's AI assistant automatically generates labels for news as "positive/negative/neutral" and suggests related sectors [20]. - Wall Street Watch only provides simple keyword tags [21]. - Financial界 lacks intelligent summaries altogether [23]. Group 7 - Regarding personalized subscriptions, Sina Finance allows users to subscribe based on sectors, concepts, individual stocks, and macro events, with voice broadcast capabilities [24]. - Wall Street Watch offers only two levels of subscription based on industry and individual stocks [25]. - Financial界 has limited customizable areas due to advertisement space occupying most of the layout [27]. Group 8 - In terms of interaction efficiency, Sina Finance's news cards link directly to trading interfaces, allowing for lightning-fast orders completed in 3 seconds [29]. - Wall Street Watch requires users to navigate to broker apps, resulting in a 7-10 second delay [30]. - Financial界 has built-in trading but requires multiple jumps, leading to inefficiencies [32]. Group 9 - For extreme market stability, Sina Finance managed to handle a peak of 120,000 queries per second without lag during a trading volume exceeding 2.1 trillion [34]. - Wall Street Watch occasionally experiences server errors, requiring a downgrade to text-only versions [35]. - Financial界 faces delays in both news and market data, leading to user complaints [37].