144.02 USD
↗ 0.21 (0.15%)PRE MARKET (AS OF 09:22 AM EDT)
MRK Stock Premarket
Merck & Co., Inc.
MRKNYSE • USD
Market: OPEN
Premarket trading runs 4:00 AM – 9:30 AM ET.
MRK is trading at $144.02 in premarket, up $0.21 (0.15%) from its previous close of $143.81.
📅 MRK is expected to report earnings around Oct 29, 2026 before the open (estimated), with an estimated EPS of $2.19. MRK earnings details →
MRK Premarket Chart
MRK Premarket News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, MRK has had 5 qualifying gap events (gaps of 5% or more at the open) — 2 gap-ups and 3 gap-downs. Gap-ups averaged +7.3%, 50% have fully filled, median time to fill 9 trading days. Gap-downs averaged -8.3%, 33% have fully filled, median time to fill 14 trading days. Most recent: a +8.7% gap up on Aug 19, 2026, still unfilled. MRK has 1 unfilled gap from the past 60 days — a +8.7% gap up on Aug 19, 2026, currently 39% retraced. Average 20-trading-day return after a MRK gap up: -0.74%. After a gap down: +0.12%.
Gap Ups2 events
Fill Rate
50.0%
Avg Gap
7.3%
Avg 50% Fill
6d
Avg Fill
9d
Gap Downs3 events
Fill Rate
33.3%
Avg Gap
8.3%
Avg 50% Fill
10.5d
Avg Fill
14d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 50% | 50% | 50% | 100% |
| fills 50% | 0% | 50% | 50% | 50% |
| fills 75% | 0% | 50% | 50% | 50% |
| fills 100% | 0% | 0% | 50% | 50% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 33% | 33% | 67% | 100% |
| fills 50% | 33% | 33% | 33% | 67% |
| fills 75% | 0% | 33% | 33% | 33% |
| fills 100% | 0% | 0% | 0% | 33% |
Active Unfilled Gaps (past 60 days)
44 days ago
2026-08-19
Gap %
+8.71%
Gap From
$135.17
% vs Current
-6.01%
retraced 39% to $142.31
Complete Gap History — 5 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2026-08-19 | $135.17 | +8.71% | Open | — | — | 17% | 17% | 17% | 39% |
| 2025-07-29 | $84.06 | -5.01% | Filled | 1d | 14d | 72% | 89% | 89% | 100% |
| 2025-02-04 | $99.79 | -10.81% | Open | 20d | — | 21% | 21% | 21% | 59% |
| 2024-03-27 | $125.52 | +5.86% | Filled | 6d | 9d | 38% | 75% | 100% | 100% |
| 2021-11-05 | $90.54 | -9.11% | Open | — | — | 21% | 24% | 29% | 29% |
Related: MRK quote & chart · After hours · Technical analysis · Fundamentals · Earnings · Short interest
Frequently Asked Questions
What is MRK's premarket price?
Merck & (MRK) is trading at $144.02 in premarket, up $0.21 (0.15%) from the previous close of $143.81.
Why is MRK moving in premarket?
Merck & (MRK) is up 0.15% from its previous close in premarket trading. Premarket moves are usually driven by company-specific news, earnings results, analyst rating or price-target changes, or broad market and sector sentiment. Check the latest MRK premarket headlines and gap history below for the likely catalyst.
When does MRK premarket trading start?
Premarket trading for MRK on the NYSE runs from 4:00 AM to 9:30 AM Eastern Time, ahead of the regular session (9:30 AM – 4:00 PM ET). After-hours runs from 4:00 PM to 8:00 PM ET.
How often does MRK fill its gaps?
Over the past 5 years, 50% of MRK gap-ups have fully filled and 33% of gap-downs have filled. Median time to fill is 9 trading days for gap-ups and 14 trading days for gap-downs.
Does MRK have any unfilled gaps?
Yes. MRK has 1 unfilled gap from the past 60 days. The largest is a +8.7% gap up from Aug 19, 2026 and is currently 39% retraced.
What's the average return after a MRK gap?
Based on 5 qualifying gap events over the past 5 years, the average 20-trading-day return after a MRK gap up is -0.74%, and after a gap down is +0.12%.
When does MRK report earnings?
MRK is expected to report earnings around Oct 29, 2026 before the open (estimated), with an estimated EPS of $2.19.