Merck & Co. Inc. (MRK)
Research · charts · filings · insider activity
Facts as of
Each figure carries its own date. Quotes are delayed. A headline is the latest news, not a confirmed cause. Not investment advice.
| Last price | $148.30 (delayed by more than an hour: latest quote available) |
| Change | +4.67 (+3.25%) |
| Quote time | 2026-10-20 20:00 UTC |
| Short interest | Below 15% of float (not on the squeeze board) |
| Trading halt today | None in the halt feed as of 2026-10-21 04:46 UTC |
| Latest headline | What Happens To Merck Stock If Keytruda Sales Stop Growing? (2026-10-21) |
| Offering or shelf filing | None among the latest 20 SEC filings (back to 2026-08-07) |
Why is Merck & Co. Inc. stock moving today?
Merck & Co. Inc. (MRK): Up 3.25% to $148.30 (+4.67), at the delayed quote taken 2026-10-20 20:00 UTC. Latest headline (2026-10-21): "What Happens To Merck Stock If Keytruda Sales Stop Growing?".
MRK live chartTrading halts todayMorning editionShort-squeeze board
Merck's Keytruda is the best-selling oncology drug in the world. The company is racing to build a post-Keytruda pipeline before the patent cliff in the late 2020s.
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- sec edgar filings, 10-k / 10-q / 8-k searchable with ai-generated summaries
- insider transactions, form 4 buys/sells by execs and 10%+ holders, filterable by size + recency
- options flow, unusual activity, open interest, implied vol (paid tier)
- paper trading, l2-accurate fill simulation (terminal tier)
- start with the overview, open the scanner, click MRK, or search the top bar. unified page: price, profile, latest headlines.
- scan filings next, 8-k feed surfaces material events (earnings, m&a, insider changes). ai summary ships the takeaway in one paragraph.
- check insider activity, a cluster of form 4 buys from executives often precedes outperformance. feed groups by signer.
- size in the simulator, paper-trade MRK with l2-walked fills before risking capital. analytics tracks win rate, profit factor, expectancy.
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