A reaccelerating ad monopoly is funding a capex cycle the cash flow no longer covers.

• Growth is back. Q4 FY25 revenue grew 18% YoY — the fastest print since Q2 2022 — on a $403B base, and operating margin held at 32.0% for a second straight year.
• But cash is not. Capex jumped from $32B (FY23) to $91B (FY25) while free cash flow sat flat at $73B; FCF-to-net-income conversion collapsed from 94% to 55% in 24 months.
• And 2026 gets harder. Management guided $175–185B of FY26 capex against ~$205B of operating cash flow — an ~88% capex-to-OCF regime with the CEO already warning on the Q4 call that even $185B 'won't be enough.'

Earnings power is a two-decade high; cash conversion is a decade low.

Services (Search, YouTube, Android, Play) prints a ~40% operating margin and subsidizes three capital-hungry bets. Google Cloud crossed 30% segment margin in Q4 on $155B of backlog, which is the single fact that justifies the $180B 2026 capex ticket. What has to be true for the bull case: capex plateaus below 22% of revenue by FY27 and Cloud margin crosses 35% — otherwise the 29× P/E is capitalizing earnings that are funding infrastructure, not owners.

From 'AI will kill Search' to 'Alphabet is the AI infrastructure bet' in 24 months.

Before. Coming out of the Bard demo stumble in Feb 2023, Alphabet looked flat-footed: a $307B ad monopoly the market feared generative-chat rivals would gut, a Cloud business still losing money at scale, and a DOJ search-monopoly case about to land.

Pivot. Three things in 2024–2025: Cloud margin went 3% → 14% → 30%+ in Q4 FY25 as Alphabet's own frontier model shipped across all 15 half-billion-user products; Judge Mehta's September 2025 remedies ruling rejected Chrome and Android divestiture; and capex tripled to $91B with the $32B Wiz acquisition closing on top.

Today. The stock is +120% over one year, sitting 21% above a rising 200-day SMA, with a Q1 FY26 print six days out on April 29. The open question is no longer whether Alphabet can compete in AI — it is whether AI Overviews monetize per-query at parity with ten blue links as query share migrates to generative surfaces.

AI Overviews are restructuring the click economics — and management won't publish the comparison.

• The measurement. Independent September 2025 work from Seer Interactive across 8 billion impressions found organic CTR down 61% and paid CTR down 68% on queries where AI Overviews appear.
• The offset. Paid CPCs rose 7% in 2025 on +6% paid-click growth, which lets management repeat 'monetization at approximately the same rate' on every call — without releasing comparable per-query yield data.
• The real tell. Google Network revenue has already shrunk ($30.4B → $29.8B from FY24 to FY25), and silence on AI-Mode segmented click metrics at two consecutive prints is itself the answer investors should price.

Governance grade B-: founders control the vote, but the pay plan is now honestly aligned.

• The lock. Page and Brin own ~6% of the economics and cast ~52% of the votes through Class B super-voting shares; say-on-pay is triennial, and there is no sunset.
• The price of that lock. Two nine-figure derivative settlements in 12 months — $500M on antitrust oversight (forcing a new Risk & Compliance Committee) and $350M closing the Google+ privacy case.
• The offset. Pichai's new March 2026 package is worth up to $692M, entirely performance-linked — half to TSR vs the S&P 100, half to Waymo and Wing IPO outcomes. He gets nothing unless shareholders get paid.