With Micron Technology Inc.'s (MU - Get Report) shares up 43% in 2017 and over 200% from their early-2016 lows going into earnings, the bar was certainly set pretty high for the memory giant. And considering the memory industry's historical volatility, it's tough to fault those who aren't enthusiastic about any outlook that falls short of the kind of blowout guidance Micron delivered in March.

That said, Micron's May quarter results and August quarter guidance provided little to be seriously concerned about. The company's numbers do suggest that the DRAM industry won't see the kind of massive price gains it witnessed during the first half of 2017 during the second half of the year. But they also suggest that DRAM and NAND flash memory supply growth remains controlled, and that demand is healthy ahead of a pending iPhone 8 and 7S ramp -- especially for some higher-margin products.

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Micron reported May quarter (fiscal third quarter) revenue of $5.57 billion (up 92% annually) and adjusted EPS of $1.62 (up from negative $0.03 a year ago), topping consensus analyst estimates of $5.41 billion and $1.52. And in its earnings slides, the company guided for August quarter revenue of $5.7 billion to $6.1 billion (up 83% at the midpoint) and adjusted EPS of $1.73 to $1.87, above a consensus of $5.62 billion and $1.58.

Nonetheless, shares rose just 0.4% in after hours trading to $31.59, and have fallen close to 4% on Friday as of mid-day. High expectations are clearly a factor here, just as they were for hard drive/NAND giant Western Digital Corp. (WDC - Get Report) on Tuesday -- Western's shares slipped after the company hiked its June quarter EPS guidance, but left revenue guidance unchanged. There might also be some worries that Micron's margin guidance and earnings call commentary say about future price gains for DRAM, which accounts for 64% of Micron's revenue and about 70% of its gross profit.

The company's May quarter adjusted gross margin was 48%, at the high end of a 44% to 48% guidance range and up sharply from the February quarter's 38.5% and the year-ago period's 18.1%. But August quarter GM guidance of 47% to 51% implies only a 100 basis-point sequential gain at the midpoint.

When asked on the call about the margin guidance, CFO Ernie Maddock insisted his company "[continues] to view supply and demand in a favorable way." But he added that following several quarters of strong pricing gains, it "isn't always advisable to bank on continued aggressive quarter-on-quarter pricing increases."

Still, with Micron continuing to forecast that a consolidated DRAM industry will only grow its bit supply by 15% to 20% in 2017, there's little reason to think that pricing won't remain healthy in the near-term. Particularly -- though reported iPhone 8 production delays might affect August quarter demand a bit -- with Apple Inc. (AAPL - Get Report) and other major mobile OEMs due to begin placing large DRAM orders for second-half smartphone launches. Micron's DRAM average selling price (ASP) rose 14% sequentially in the May quarter, and its bit shipments rose 5%. This followed 21% ASP growth and 1% bit growth in the February quarter.

Here comes the iPhone 8.
Here comes the iPhone 8.

For the NAND market, Micron now expects industry bit supply to rise by a high-30s to low-40s percentage this year, a slight narrowing of prior guidance for 35% to 45% growth. Production ramps for cheap, high-density, 3D NAND flash are driving the supply growth -- this quarter, Micron plans to start recording revenue for the 64-layer 3D NAND products it co-developed with Intel Corp. (INTC - Get Report) , which provide cost and density gains relative to the 32-layer 3D NAND chips the companies launched last year. But the additional supply is being soaked up by demand, and this should continue as iPhone 8 orders arrive. Micron's NAND bit shipments rose 17% sequentially last quarter, and ASP rose 3%.

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For both DRAM and NAND, Micron is benefiting from strong orders for higher-margin data center products, especially from cloud giants. The company's cloud revenue rose more than 300% annually last quarter, and its cloud solid-state drive (SSD) sales doubled sequentially, as Micron's SSD business takes both PC and data center share following a slow start. Server DRAM sales benefited from both cloud demand and enterprise adoption of in-memory databases such as SAP SE's (SAP - Get Report) Hana, and should get a boost later this summer from an anticipated Intel server CPU refresh.

The graphics DRAM market, another high-margin segment, was another standout, with revenue rising by a double-digit clip sequentially due to console demand and high-end Nvidia Corp. (NVDA - Get Report) GPU launches. And in the automotive market, a strong point for many chipmakers in 2017, rising DRAM and NAND content within infotainment systems and instrument clusters is a tailwind.

Looking at Micron's bottom line, the company is benefiting from both its operating leverage and spending discipline: Though revenue rose 92%, adjusted operating expenses fell by $12 million annually to $600 million, and are forecast to be around that level this quarter. Margins benefited not only from strong pricing, but 6% and 12% sequential drops, respectively, in Micron's DRAM and NAND cost per bit. The company now expects fiscal 2017 (ends in August) free cash flow of $3 billion.

Considering how quickly and harshly past memory boom cycles collapses, it makes sense to keep an eye out for any major signs that the party is ending. But Micron's outlook didn't provide that, even if it didn't quite match the highest expectations out there.

Micron shares fell 4.2% to $30.15 on Friday afternoon.

Apple and Western Digital are holdings in Jim Cramer's Action Alerts PLUS Charitable Trust Portfolio. Want to be alerted before Cramer buys or sells AAPL or WDC? Learn more now.

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