AAPL — Apple Inc.

Momentum is unambiguously bullish as of 2026-09-13: AAPL is up 32.84% over six months, 14.13% over three months and 9.93% over one month, with RSI-14 at 62.79 and price sitting 4.94% above its 20-day, 4.5% above its 50-day and 16.6% above its 200-day moving average. The narrative supports the tape — a record June quarter (revenue $109.4B, EPS $2.03 vs. ~$1.89 expected), all-time-high installed base, a Sept 9 product event that launched Apple's first foldable iPhone (the $1,999 iPhone Duo) plus 2nm A20 iPhone 18 Pros, and a Buy consensus with 70 buy ratings against 9 sells. The temper is that the Street is quietly saying 'fully valued': the $339.35 consensus target is only ~2% above the $332.27 price, and the recent 15-analyst average target of $327.18 actually sits below the current price. Sentiment is bullish, but the upside analysts are willing to underwrite has largely been paid out already.

The last four quarters mark a real inflection, not a blip. Revenue YoY went from +7.9% in the Sept-2025 quarter to +15.7% (Dec-25), +16.6% (Mar-26) and +16.4% (Jun-26) — a step-change from high-single-digit to mid-teens growth that has now held for three consecutive prints. Diluted EPS compounded the same way: +18.3%, +21.8%, +29.3% YoY in the last three quarters (the Sept-2025 quarter's +90.7% is not meaningful — the prior-year quarter carried the ~$10B EU State Aid tax charge that crushed FY24 Q4 EPS to $0.97). Gross margin expanded from 46.5% in Jun-25 to 50.1% in Jun-26 (~360bps), and operating margin from 30.0% to 32.6%, though roughly 200bps of the June-quarter gross margin gain came from one-time tariff refunds, so the underlying level is closer to 48-49%. Cash conversion is clean: Q3 FY26 operating cash flow of $34.4B (+23% YoY), FCF of $31.9B (+31%), and a trailing accruals ratio of -1.19% (cash running ahead of reported profit — the opposite of an earnings-quality red flag). The one warning inside the trend: R&D rose 32% YoY to $11.7B, lifting R&D from 9.4% to 10.7% of revenue — the AI build-out is real and it costs. Looking forward, management has already guided the Sept-2026 quarter to +9-11% revenue growth, an explicit deceleration driven by SoC supply constraints rather than demand, so expect the reported trend line to bend down for a quarter or two. Equity also rebuilt from $65.8B (Jun-25) to $107.5B (Jun-26) while long-term debt fell from $82.4B to $71.3B — a genuinely improving balance sheet underneath the buybacks.

Expensive versus its own history, and not cheap versus its growth either. As of 2026-09-13, AAPL's trailing P/E of 37.93 sits ~27% above its 5-year average of 29.91, and its trailing P/S of 10.45 is ~37% above its 5-year average of 7.61 — the deterministic score's 'Rich vs. its own history' label (score 9.9) is correct. PEG of 1.159 is the one multiple that looks defensible, which means the premium is at least partly growth-justified rather than pure multiple inflation. I'd flag a data inconsistency, though: the vendor's next-FY EPS estimate of $8.833 is essentially flat versus trailing EPS of $8.775, and next-FY revenue of $477.4B is only +2.3% over the $466.8B trailing — that cannot be right when Q4 FY26 consensus EPS alone is $1.98 (implying FY26 EPS of ~$8.86) and the last three quarters grew revenue 16%. I treat that estimate as stale. My own forward math: ~$8.86 FY2026 EPS, ~$9.75 FY2027 EPS, putting the stock at ~34x forward — below the 37.9x trailing but still a full multiple for a company about to deal with memory inflation. P/B of 45.4 and ROE of 151.9% are artifacts of buyback-shrunk equity and carry no information; ROIC of 52% is the number that matters, and it's exceptional.

At $332.27 on 2026-09-13, the market is paying ~37.9x trailing EPS of $8.775 and ~34x my FY2027 estimate of $9.75 — i.e., it is pricing durable low-to-mid-teens EPS growth as far as the eye can see. The last three quarters delivered exactly that, which is why the multiple has held. The problem is that management's own Q4 FY26 guide (+9-11% revenue) and the DRAM/SoC commentary describe a slowing, cost-pressured near term, so the price is discounting continuation of a trend that is being explicitly guided to bend. This creates asymmetric second-order risk on gross margin: if memory inflation clips margins, you get hit on both earnings AND the multiple at once, which is precisely the double-whammy a 38x P/E cannot absorb. Conversely, the bull path requires the $1,999 iPhone Duo and iPhone 18 Pro to drive ASP/mix despite supply constraints, plus Services (already $30.7B in the June quarter, +12% YoY) to keep compounding at high margin. Read the Q4 print on 2026-10-29 for gross margin first and unit/ASP second — the multiple is levered to the margin line, not the revenue line, from here.

Trending, extended, not yet overbought — as of 2026-09-13, RSI-14 was 62.79, below the 70 overbought threshold, with price 4.94% above the 20-day SMA, 4.5% above the 50-day and 16.6% above the 200-day. That is a clean, stacked uptrend (price > 20-SMA > 50-SMA > 200-SMA configuration implied by the readings) and the 200-day spread of +16.6% confirms a sustained advance rather than a bounce. Price at $332.27 was only ~3.6% off the 52-week high of $344.57, so this is a stock pushing into blue-sky territory rather than one basing. Entry-timing implication: buying strength here means paying up after a +32.8% six-month move with a fresh product cycle just launched and a supply-constrained quarter ahead; a pullback toward the 20/50-day cluster (~$316-318) would be a materially better risk/reward, and a break below the 50-day after a product launch would be a real warning that the holiday sell-through is disappointing.

• Memory (DRAM) cost inflation — Apple management has described the spike as a '100-year flood,' already forcing Mac and iPad price increases and set to compress gross margins in the back half of FY2026 and into FY2027; this is the single largest swing factor in the earnings model right now.
• Advanced-node SoC supply constraints — Apple explicitly guided September-quarter revenue growth down to 9-11% YoY because it cannot get enough leading-edge silicon for iPhone, Mac and iPad, meaning near-term revenue is supply-capped rather than demand-capped.
• Regulatory pressure on Services — the DOJ antitrust case is in discovery/trial phases and the EU's Digital Markets Act continues to target App Store commission structures, directly threatening the economics of the ~$30.7B/quarter, high-margin Services segment that justifies much of the multiple.
• Foreign exchange — roughly 2.5 percentage points of sequential revenue drag flagged by management, a persistent headwind that masks slightly better underlying unit economics.
• Mega-cap tech concentration and rate sensitivity — a 0.344% dividend yield offers essentially no income cushion, so the valuation rests entirely on the growth/multiple story; the stock is exposed to any rotation out of crowded large-cap tech or rise in discount rates.

• Q4 FY2026 earnings on 2026-10-29 (consensus EPS $1.98) — the first hard quantitative read on iPhone 18 Pro and $1,999 foldable iPhone Duo pre-order velocity, and the first real data point on how badly DRAM inflation is hitting gross margin.
• December-quarter holiday sell-through of the new hardware lineup — this is the revenue engine for Apple's largest quarter and the primary test of whether the foldable expands the addressable market or merely cannibalizes Pro buyers.
• Monetization of the redesigned Siri AI / Apple Intelligence stack — any evidence of Services attach or an AI-driven upgrade cycle would justify holding the multiple where it is.
• John Ternus's first full year as CEO (succeeded Tim Cook on 2026-09-01) — strategic, portfolio and capital-return signals from new leadership.
• Continued buyback execution — ongoing share-count reduction of roughly 2-3% annually is a mechanical EPS tailwind that partially offsets margin pressure.

• Gross margin compression from the DRAM '100-year flood' — with the stock at ~38x trailing earnings, a margin miss hits both earnings and the multiple simultaneously, and the Q3 FY26 margin was already flattered by ~2pp of one-time tariff refunds.
• SoC supply constraints capping revenue — the guided slowdown to +9-11% is self-inflicted by supply, but if it extends past one quarter it starts to look like lost demand rather than deferred demand.
• Valuation risk — 37.9x trailing and 10.45x sales versus 5-year averages of 29.9x and 7.61x leaves essentially no cushion for execution error; the consensus target of $339.35 is only ~2% above the price and the recent-analyst average of $327.18 is below it.
• Regulatory/antitrust outcomes (DOJ and EU DMA) that could structurally alter App Store commissions — a direct hit to the highest-margin, most multiple-supportive revenue line.
• Unproven $1,999 foldable economics — a rich price point into an uncertain consumer discretionary backdrop, with high bill-of-materials costs that could make the product margin-dilutive even if units are decent.

Apple is executing about as well as a $4.9T company can: three straight quarters of ~16% revenue growth after a year of ~8%, gross margin near 50%, ROIC of 52%, $136.7B of trailing free cash flow and clean cash-backed earnings. But at $332.27 on 2026-09-13 you are paying ~34x forward earnings for a company whose own management just guided the next quarter to roughly half its recent growth rate and warned about a historic memory-cost squeeze. My independent fair value lands around $320, modestly below the current price and ~6% below the Street's $339.35 target, while the sell-side's own recent-average target of $327.18 is below the tape. That is the definition of a great business at a full price: own it for the installed-base annuity and Services compounding, do not chase it at 38x into a supply-capped, cost-inflated quarter.

I built FY2026E EPS of ~$8.86 from actual Q1-Q3 FY26 diluted EPS ($2.84 + $2.01 + $2.03) plus the $1.98 Q4 FY26 consensus, then grew it ~10% to ~$9.75 for FY2027 (roughly 6-7% revenue growth, flat-to-slightly-down margins as DRAM inflation offsets Services mix, plus a ~2-3% buyback tailwind), and applied a justified forward P/E of 33x — a modest premium to the 29.91x 5-year average to reflect the Services mix shift and record installed base, but below the current 37.93x trailing given the guided slowdown. 33 x $9.75 = $321.75, which cross-checks closely against a required 3.25% FCF yield on ~$152B of FY2027E free cash flow (implying ~$318/share), so I set the figure at $320.