Goldman Sachs Comments on SanDisk's "Stunning Investor Day": Long-term Financial Guidance Far Exceeds Expectations, 100% Excess Free Cash Flow Returned to Shareholders

SanDisk has just delivered a remarkable “Investor Day” performance that caught Wall Street’s attention, unveiling a series of long-term financial targets and capital return plans that far exceeded market expectations. The stock price surged nearly 14% that day.

According to Wind Trading Desk, a research report from Goldman Sachs on August 13 pointed out that SanDisk not only provided long-term financial guidance far above market expectations (80% gross margin, 75% operating margin), but also made a strong commitment to return 100% of excess free cash flow to shareholders. In addition, its next-generation HBF (High Bandwidth Flash) technology roadmap for AI inference brings significant upside potential for the company.

Goldman Sachs reiterated its “Buy” rating on SanDisk, setting a 12-month target price as high as $2,200 (based on a normalized EPS of $110 and a 20x P/E multiple), which implies around 44% upside compared to the current $1,528 share price.

Meanwhile, Goldman Sachs also noted that whether long-term customer agreements (NBM) can truly smooth out industry cyclicality remains to be seen and may not be fully reflected in valuation multiples in the short term. However, given limited supply increases in the current NAND market and continuous product portfolio optimization, Goldman Sachs’ buy thesis for SanDisk remains solid.

Long-term Financial Guidance Far Exceeds Expectations: FY28-30 Gross Margin 80%, Operating Margin 75%

The most shocking aspect for the market in this Investor Day was SanDisk’s long-term financial model for FY28-30:

• Revenue Growth: Mid-to-high teens percentage
• Gross Margin: 80%
• Operating Margin: 75%
• Adjusted Free Cash Flow Margin: Around 50%
• Capital Expenditure Intensity: Mid-single digits as a percentage of revenue

Goldman Sachs explicitly stated that the above guidance “far exceeds investor expectations” and is the core driver behind the 15% intraday stock price jump.

The key mechanism supporting these financial goals is SanDisk's implementation of the long-term customer agreement (NBM, Non-Binding Master Agreements) framework. Key features of this framework include:

Weighted average contract duration of four years, providing stronger revenue visibility;

Recently, fixed pricing adopted, with price floors and ceilings set for the long term, balancing stability and flexibility;

Even at the contract floor price, gross margin can reach 80%, making the economics highly attractive.

Currently, SanDisk has disclosed total contract value (TCV) of approximately $94 billion (including remaining performance obligations, RPO, of about $91 billion), and has provided approximately $16.5 billion in financial guarantees to eight customers (including three major US hyperscale cloud providers).

The company also reiterated that for planned FY27/FY28 shipments, roughly 50%/67% are already covered by NBM agreements, providing solid underlying support for its financial targets.

Industry-Leading Capital Return Policy: $15.5 Billion Buyback Balance, 100% Excess Cash Flow to Shareholders

SanDisk made clear three key capital allocation priorities on Investor Day:

1. Continue investing in the business to maintain technological leadership;
2. Maintain a strong balance sheet, keep zero debt and abundant cash, and continue to improve credit ratings;
3. Return 100% of excess free cash flow (i.e., free cash flow remaining after business reinvestment) to shareholders, prioritizing share repurchases.

In terms of buyback authorization: The Board previously authorized a $6 billion buyback plan, of which about $4.5 billion has been executed; an additional $14 billion authorization was later added, bringing the total remaining buyback quota to about $15.5 billion.

Goldman Sachs noted that this capital return intensity “far exceeds any industry announcements so far,” making it highly appealing for investors seeking shareholder returns.

Outstanding Manufacturing Efficiency: 13% of Industry Capex Drives 29% of Bit Output

Goldman Sachs said that during Investor Day, SanDisk emphasized its core competitive advantage on the manufacturing side—through its joint venture (JV agreement extended to 2034) with Kioxia, SanDisk maintains control of the full manufacturing technology stack and intellectual property.

The key data is impressive:

• From 2021-2025, SanDisk/Kioxia accounts for only 13% of industry capex but contributes 29% of industry bit output, showcasing capital efficiency far above the industry average;

• Industry-wide, the capital required to add one unit of exabyte output is about 2.7 times that of SanDisk's CY25 level.

Looking ahead, the company expects to drive mid-teen percentage bit output growth by further increasing dies per wafer, improving efficiency, and utilizing equipment and cleanroom capacity more efficiently, all while maintaining capital expenditure intensity in the mid-single digits as a percent of revenue.

HBF Technology: Breaking the "Memory Wall" for AI Inference, Providing Significant Upside Potential

Goldman Sachs sees SanDisk’s HBF (High Bandwidth Flash) technology as the most visionary strategic highlight of this Investor Day.

Technical Background: With context length and inference chains increasing in AI inference tasks (especially agent AI workloads), demand for memory bandwidth is soaring. Traditional HBM (High Bandwidth Memory, DRAM-based) is facing capacity constraints and high cost pressure.

Core Value Proposition of HBF:

• Provides HBM-like read bandwidth while offering 8 to 16 times the capacity of HBM;

• In SanDisk’s own simulation testing, a pure HBF architecture needs only half the number of GPUs for the same token output compared to a pure HBM architecture, significantly improving GPU and capex efficiency;

• Management positions the KV Cache as "working memory" for the AI inference decoding stage and expects KV Cache to account for around 35% of the 1.2 zettabyte (ZB) total addressable market (TAM) for AI data centers by 2032.

Product Progress: The first HBF memory product has completed tape-out, with the first samples expected in 2027.

Goldman Sachs believes HBF technology provides SanDisk with additional upside optionality beyond its core NAND business, but it is still at an early stage and has not yet been fully reflected in valuations.