Sandisk stock has experienced a significant increase, with some reports indicating it is up more than 3,700% from its 52-week low, while others suggest the gain is over 4,900%. The stock's price has risen substantially, with various outlets reporting it has climbed from under $50 to over $1,400, and from about $40 to more than $2,300, in a year. There is uncertainty about whether the stock's rally will continue, with some questioning if the market has already priced in potential future gains, such as a possible doubling of memory prices.