Morgan Stanley has flagged a notable shift in its latest monthly tracking data, revealing that Apple (NASDAQ: AAPL) App Store net revenue slipped 0.6% year-over-year as of mid-August, marking the first negative growth reading in four years.

Analysts led by Erik Woodring noted in a report that third-calendar-quarter iPhone production plans remain unchanged, though iPad output has been trimmed, hinting at some degree of demand elasticity. They also highlighted that July PC production dropped sharply by 24% year-over-year. Additionally, the firm's cloud capital expenditure tracker now points to a growth rate of +38% for the 2027 calendar year, up from a prior estimate of +9 percentage points.

Based on the latest Sensor Tower data, the analysts estimate that App Store net revenue declined 0.6% year-over-year as of August 17, representing a deceleration of 170 basis points from June's growth pace, while the year-ago comparison base itself had already been reduced by 200 basis points. If the quarter were to conclude on August 17, third-calendar-quarter App Store revenue growth would sit at just 0.5%, which is 50 basis points below Morgan Stanley's forecast of 1% year-over-year growth for the September quarter.

The analysts further pointed out that this roughly corresponds to about 20 basis points, or approximately $45 million, of downside risk to their projection of 9.5% services revenue growth for the September quarter, compared with the market consensus of 10.7% year-over-year growth.

Looking ahead, the analysts believe a significant near-term rebound in services growth is unlikely, as the App Store faces multiple headwinds including reduced commission rates, external link redirection, weak gaming demand, and foreign exchange headwinds. However, pricing adjustments for AppleCare are still expected to provide some positive offset.

Woodring and his team also stated that third-calendar-quarter iPhone production plans are maintained at 54 million units, supporting shipment expectations of approximately 58 million units for the September quarter. Meanwhile, iPad production has been cut by 1 million units, reflecting expectations of limited demand elasticity following price increases.

Additionally, the analysts noted that based on the latest forecasts from their Greater China tech hardware team, July laptop original design manufacturer shipments fell 24% year-over-year, marking the worst performance in 40 months and coming in 4% below Morgan Stanley's estimate, primarily due to weak demand and supply constraints. This suggests accelerating contraction in PC market demand.

The Woodring team also indicated that their cloud capital expenditure tracker shows a growth rate of +38% for the 2027 calendar year, with market consensus at $1.39 trillion and Morgan Stanley's expectation at $1.61 trillion, suggesting there is still room for further upward revisions in consensus estimates.

The analysts noted that after incorporating the latest consensus estimate updates, the companies with the largest upward revisions in 2027 calendar capital expenditure forecasts are Alphabet (NASDAQ: GOOGL, +$17.8 billion), Meta (NASDAQ: META, +$8.8 billion), Microsoft (NASDAQ: MSFT, +$7.5 billion), Amazon (NASDAQ: AMZN, +$6.0 billion), and Nebius (NASDAQ: NBIS, +$5.0 billion).

The analysts also mentioned that they have added SpaceX to their cloud capital expenditure tracking scope, with its 2027 capital expenditure incremental contribution reaching $120.9 billion, an increase of $62 billion year-over-year.

The Woodring team concluded that overall, the current market consensus for 2027 cash cloud capital expenditure stands at $1.39 trillion, implying an average capital intensity, or capital expenditure as a percentage of revenue, of 38.6% for the top 15 cloud vendors, representing a rise of 380 basis points since the beginning of the month.