Wissam Jabre
Executive Vice President and Chief Financial Officer at Western Digital
Thank you, David, and good afternoon, everyone. In the fiscal first quarter, Western Digital delivered great results with gross margin and earnings per share above the midpoint of the guidance range. Total revenue for the quarter was $4.1 billion, up 9% sequentially and 49% year-over-year. Non-GAAP earnings per share was $1.78.
Looking at end markets, cloud represented 54% of total revenue at $2.2 billion, up 17% sequentially and more than doubling year-over-year. On a sequential and year-over-year basis, the increases were driven by higher nearline shipments in HDD and enterprise SSD bit shipments to data center customers. Client represented 29% of total revenue at $1.2 billion, flat sequentially and up 5% year-over-year.
Compared to last quarter, Flash bit shipment growth in gaming and mobile was offset by a decline in PC OEM, while HDD revenue was flat. Year-over-year, an increase in Flash revenue was primarily due to higher ASPs as bit shipments declined and was partially offset by lower HDD revenue.
Consumer represented 17% of revenue at $0.7 billion, flat sequentially and down 7% year-over-year. Sequentially, a slight growth in HDD offset a decline in Flash driven by softer consumer demand. Year-over-year, the decrease was due to lower Flash and HDD bit shipments, partially offset by improved pricing in both Flash and HDD.
Turning now to revenue by segment. In the fiscal first quarter, Flash revenue was $1.9 billion, up 7% from last quarter and 21% year-over-year. Continued recovery in data center drove strong demand for enterprise SSD products. Sequentially, Flash ASPs increased 4% on a like-for-like basis and decreased 6% on a blended basis. Bit shipments were up 14% from the previous quarter and down 12% compared to last year.
HDD revenue was $2.2 billion, up 10% sequentially and 85% year-over-year. Sequentially, strong performance in the nearline portfolio led to a 14% increase in HDD exabyte shipments. On a year-over-year basis, total HDD exabyte shipments increased 107% and average price per unit increased 46% to $164. Nearline bit shipments were at a record level of 141 exabytes, up 12% from the previous quarter and 157% compared to the fiscal first quarter of 2024.
Moving to the rest of the income statement, please note my comments will be related to non-GAAP results unless stated otherwise. Gross margin for the fiscal first quarter was 38.5%, which was at the higher-end of the guidance range. Gross margin increased 220 basis points sequentially due to improved mix, better pricing and continued focus on cost reduction. Flash gross margin was 38.9%, up 240 basis points sequentially, driven by a higher mix of enterprise SSD bits, improvement in like-for-like pricing and continued cost-reduction.
In HDD, strong demand for nearline drives as well as efficient manufacturing operations and cost structure have driven continued margin expansion, resulting in gross margin of 38.1%, up 200 basis points sequentially. We have structurally changed the way we operate our businesses. Combined with our strong product portfolio, this has enabled us to generate gross margins above our long-term target ranges in both Flash and HDD.
Operating expenses were down sequentially to $691 million, including the synergies of $8 million. These results demonstrate continued focus on cost discipline while making progress on the execution of the business separation plans.
Operating income was $884 million, up 33% sequentially, driven by better gross margins and disciplined spending. Operating margin was 21.6%, up 390 basis points sequentially, which is the highest in five years and was previously achieved at a higher revenue level.
Income tax expense was $124 million and effective tax rate was 16.1%.
Earnings per share was $1.78.
Operating cash flow for the fiscal first quarter was $34 million and free-cash flow was an outflow of $14 million. Operating and free cash flows included payments of $418 million for the company's repatriation tax installment along with IRS settlement payments. Cash, capital expenditures, which include the purchase of property, plant and equipment and activity related to Flash joint ventures on the cash flow statement represented a cash outflow of $48 million. Fiscal first quarter inventory increased sequentially to $3.4 billion, with days of inventory declining by five days to 121 days. A decrease in HDD inventory was more than offset by an increase in Flash inventory.
Gross debt outstanding was $7.5 billion at the end of the fiscal first-quarter. Cash and cash equivalents were $1.7 billion and total liquidity was $3.9 billion, including undrawn revolver capacity of $2.2 billion. After the close of fiscal first quarter, we completed the previously-announced sale of 80% of equity interest in SanDisk Semiconductor Shanghai to JCET, thereby forming a joint-venture between SanDisk China and JCET. Proceeds from this sale will be reflected in the fiscal second quarter's cash flow.
I'll now turn to the fiscal second quarter non-GAAP guidance. We anticipate both Flash and HDD revenue to grow on a sequential basis. In Flash, we expect the ramp of enterprise SSD products and seasonality of consumer demand to drive bit shipment increases in the mid single-digit percentage points. In HDD, we expect continued growth momentum in the nearline product portfolio.
We anticipate revenue to be in the range of $4.2 billion to $4.4 billion. Gross margin is expected to be between 37% and 39%. We expect operating expenses to increase slightly to a range of $695 million to $715 million, including the synergy costs of $25 million to $35 million as we continue to make progress executing on the business separation plans. Interest and other expenses are anticipated to be approximately $110 million. Tax rate is expected to be between 15% and 17%. We expect EPS of $1.75 to $2.05 based on approximately 357 million shares outstanding.
As shown in our guidance, we remain committed to executing our business, driving higher profitability and cost discipline, while making great progress towards the completion of our business separation plans.
I'll now turn the call back over to David.