Market Overview - A-shares experienced a broad rally on May 20, with overall market activity increasing and trading volume expanding, as both A-shares and Hong Kong stocks rose over 1% [1] - The three major A-share indices saw significant gains, with the Shanghai Composite Index closing up 0.38% at 3380.48 points, the Shenzhen Component Index up 0.77% at 10249.17 points, and the ChiNext Index up 0.77% at 2048.46 points [1] - The total trading volume in the Shanghai and Shenzhen markets reached 12.114 trillion yuan, an increase of 923 billion yuan compared to the previous day [1] Pet Economy Concept - The pet economy concept surged, with over 3800 stocks in the market showing gains, including Tianyuan Pet (301335) hitting a 20% limit up and reaching a new high, and Lusi Co. (832419) also hitting a limit up [2][4] - The pet market has been maintaining high growth rates, benefiting from domestic brand replacement effects and continuous improvements in product and brand strength, leading to significant year-on-year sales increases [4][6] - Analysts expect the pet sector's performance to continue reaching new highs in 2024 and the first quarter of 2025, driven by stable overseas orders and the growth of domestic pet food brands [6] Innovative Drug Concept - The innovative drug concept saw a strong performance, with significant gains in stocks such as Sangfor Biopharma (01530) which rose over 32%, and other companies like Rongchang Biopharma (688331) and Yifang Biopharma (688382) also experiencing substantial increases [8][10] - Sangfor Biopharma announced a collaboration with Pfizer for the exclusive global development rights of a dual-target antibody, SSGJ-707, which has shown promising results in clinical trials for non-small cell lung cancer [8][10] - The innovative drug sector is expected to benefit from potential changes in international drug pricing strategies, which may position China as a low-cost research and production center [13] Shipping Concept - The shipping sector experienced a significant pullback, with stocks like Guohang Ocean (833171) dropping nearly 18%, and several others hitting the daily limit down [15][16] - Despite the recent downturn, companies like Lianyungang (601008) and Ningbo Ocean (601022) have reassured investors that their operations remain normal and that there are no significant changes in industry policies [17]