SanDisk Shares Jump 3% as First HBF Standard Specification Released Ahead of Earnings

TradingKey - SanDisk and SK Hynix jointly release the first HBF standard specification, boosting the stock price by nearly 3%.

On August 4, Eastern Time, SanDisk ( SNDK) stock continued to rebound, surging nearly 3% today to break through the $1,300 mark and reaching a high of $1,340, further narrowing its recent losses. Since peaking at the end of June, SanDisk's stock has suffered a maximum drawdown of over 50%.

SanDisk stock chart, Source: TradingView

On the eve of announcing its latest quarterly earnings, SanDisk's stock received a strong catalyst as it, along with SK Hynix ( SKHY) and the leading HBF Alliance officially released the first High-Bandwidth Flash (HBF) open standard specification at the opening of the global memory event FMS 2026, aiming to create a new high-bandwidth, high-capacity storage tier between traditional HBM (small capacity, high cost) and enterprise SSDs (slow speed).

For SanDisk, the HBF standard establishes its core position in next-generation AI server inference computing and data retrieval. In addition, HBF is a high-value-added customized and high-end packaging product with technical barriers far higher than ordinary NAND, helping SanDisk improve its long-term average selling price (ASP) and gross margin.

Although the release of the HBF standard triggered a rise in SanDisk's stock price, this is likely to be short-lived as there is still a long way to go before production. This Wednesday (August 5) after-hours, SanDisk will release its latest earnings report, so it is crucial to focus on management's latest comments regarding the mass production timeline of HBF products during the earnings call.

In addition, the expansion speed of the HBF ecosystem needs to be tracked subsequently. Currently, Google ( GOOG) has already announced its participation in building the HBF ecosystem, and whether Microsoft ( MSFT ), Meta ( META) and other cloud service providers, as well as Nvidia ( NVDA ), AMD ( AMD) and other chip giants will announce support for the UCIe HBF interface will be a key indicator of whether HBF can be rapidly commercialized.