每经AI快讯，12月18日，美股存储板块盘前上扬，美光科技绩后大涨13%，SanDiskCorp涨超8%，西部 数据涨近5%，希捷科技涨3%。 ...

Group 1 - Memory chip stocks are experiencing significant declines following Kioxia's disappointing earnings report, impacting major players like Micron Technology Inc and SanDisk Corp [1] - Micron Technology Inc shares are down 3.4% to $236.67, having previously reached a record high of $257.07 on November 10, and are up 171.3% year to date [2] - SanDisk Corp shares have dropped 15.6% to $239.07, now 9.2% below their all-time peak of $284.76 on November 12, with a year-to-date increase of 132% [2] Group 2 - Both Micron and SanDisk exhibit similar technical setups, with options trading being a notable strategy for both companies [3] - Micron has a Schaeffer's Volatility Scorecard (SVS) of 89, while SanDisk's SVS is at 91, indicating a history of exceeding volatility expectations [3]

Group 1 - Quantum computing and storage concept stocks in the US market saw a pre-market rise, with LAES, IONQ, and RGTI increasing by over 3% [1] - Western Digital experienced a rise of over 4%, while SanDisk Corp increased by nearly 3% and Seagate Technology rose by nearly 2% [1]