全国迎寒潮，冰雪经济火热

Core Viewpoint - The recent cold air mass has led to significant wind, temperature drops, and precipitation in the central and eastern regions, reviving interest in the ice and snow economy, with related concepts gaining notable traction [1] Group 1: Market Performance - Companies such as Dalian Shengya and Hainan Airport have seen continuous stock price increases [1] - The tourism ETF (562510) experienced a significant increase in trading volume on October 20 [1] Group 2: Airline Sector Outlook - The airline sector is expected to see an improvement in performance, with a continued tightening of flight schedules compared to the previous year, indicating a bottoming out of the market [1] - Factors such as "anti-involution" and a low base are likely to contribute to a year-on-year increase in ticket prices, which may continue into the fourth quarter [1] - A decline in oil prices is anticipated to alleviate cost pressures for airlines, collectively enhancing airline profitability [1] Group 3: Tourism ETF Insights - The tourism ETF (562510) tracks the CSI Tourism Theme Index, covering various segments including scenic spots, airports, duty-free shops, and hotel catering [1] - The ETF is expected to benefit from multiple catalysts such as ice and snow tourism, outbound travel, and visa-free policies [1]