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David Hay — Friday POW! #275: Quest Diagnostics

"A business that grows because people get older, sicker, and more health-aware (forces that do not reverse) at a price that reflects temporary margin optics."
2026-JUN-05 · Haymaker (Substack newsletter, paid) · The Haymaker Team / David Hay · Pick of the Week · ↗ Read · article text
One-line take: The weekly "POW!" pick is Quest Diagnostics (DGX) — America's largest independent lab network at the low end of its historical multiple after a sell-on-good-news quarter (fifth straight guidance raise) — and the post closes with the full Haymaker portfolio (a Buys list and a Trims/Holds list with cost basis and ratings), which now drives portfolio.json and the master table's ◆ pundit-portfolio filter.

1. Stocks & names mentioned

TickerNameResearchViewWhat he saidAt
DGXQuest DiagnosticsQT · SA · STK · FAPositivePick of the Week — largest US independent lab network (~550k specimens/day, ~2,250 service centers) at ~18× forward EPS / ~5.5% FCF yield after a sell-on-a-beat quarter; fifth straight guidance raise, Fresenius/Corewell adding ~$330M revenue, AI Companion +40% agent productivity. "Gradual accumulators" at current levels or lower; PT $215–225 over 12–18 months. Key risk: a PAMA Medicare-reimbursement cut cycle.read

The post's closing Buys (42 lots) and Trims/Holds (56 lots) tables — the full Haymaker portfolio with price/cost/% change/rating per lot — are transcribed at the end of transcript.txt and captured in david-hay/portfolio.json (one entry per ticker). They are position lists, not discussed names, so they don't get mention rows here.

2. Talking points

The pick — Quest Diagnostics (DGX)

Valuation & technicals

The other side

The portfolio disclosure

3. In plain English

DGX — Quest Diagnostics Positive

Quest runs the biggest independent network of medical-testing labs in America — the blood panels your doctor orders, plus advanced genomic and cancer testing. It processes about 550,000 patient samples a day through infrastructure (2,250 collection sites, a fleet-and-lab logistics web) that took decades to build and would cost billions to copy. People getting older and sicker means test volumes grow for decades, and no AI chatbot can draw blood.

The stock sold off ~11% even though the company beat earnings and raised guidance for the fifth quarter in a row — the market disliked temporarily thinner margins from new hospital partnerships still ramping up. Haymaker's view: that's accounting optics, not deterioration, so you're buying a steadily compounding business at the cheap end of its usual valuation with a ~5.5% free-cash-flow yield. They're buying gradually here, targeting $215–225 within 12–18 months. The main real risk is government-set Medicare lab reimbursement rates being cut harder than expected.


Summary derived from the paid Haymaker newsletter (text in transcript.txt) for personal study. Not investment advice. © Haymaker / David Hay for source material.