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● Sat 10 Oct 2026/US closed · opens Mon 14:30 BST/109 names scored today/last score 11:07 BSTResearch, not advice · every call is published at Proof
Stocks / PFE vs MRK · /stock/PFE?vs=MRK (was /compare/PFE,MRK)

MRK has the strongest read, and the most behind it.

Both lean bullish. The difference is evidence and record: MRK’s read rests on 10,484 contracts but our 4h record on it is 12%; MRK’s bucket hasn’t paid historically.

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PFE Pfizer · Pharmaceuticals×
MRK Merck & Co · Pharmaceuticals×
The readMildly bullishStrongly bullish
−100 · 0 · +100
Composite+24.9+57.9
Evidence 67 76
Quality8189
Price$27.99$144.62
Contracts today7,47110,484
Calibrationhasn’t paid −1.08% · n=2,328hasn’t paid −1.64% · n=25,061
30d tape (ink) vs price (dashed)
Our record here, 4h28% of 1,404 checked12% of 1,450 checked
02

Tape, 43 days, same axis

PFEMRKtape_history · hourly, daily close shown

All values from the same rows as each stock page (stock_scores, tape_history, score_outcomes, tape calibration). Compare keeps the stock-page glyphs so nothing needs relearning.

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Add TLRYWhy is MRK’s record 12%?