239.80 USD
↘ 3.48 (1.44%)PRE MARKET (AS OF Fri 09:29 AM EDT)
DGX Stock Premarket
Quest Diagnostics Inc.
DGXNYSE • USD
Market: CLOSED
Premarket trading runs 4:00 AM – 9:30 AM ET.
DGX last traded at $239.80 in premarket, down $3.48 (1.44%) from its previous close of $243.28.
📅 DGX reported earnings on Oct 20, 2026 before the open, with an estimated EPS of $2.87. DGX earnings details →
DGX Premarket Chart
DGX Premarket News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, DGX has had 3 qualifying gap events (gaps of 5% or more at the open) — 1 gap-up and 2 gap-downs. Gap-ups averaged +8.7%, 0% have fully filled. Gap-downs averaged -5.9%, 100% have fully filled, median time to fill 12 trading days. Most recent: a -5.2% gap down 3 days ago, which filled in 1 trading day. Average 20-trading-day return after a DGX gap up: +5.79%. After a gap down: +3.73%.
Gap Ups1 events
Fill Rate
0.0%
Avg Gap
8.7%
Avg 50% Fill
—
Avg Fill
—
Gap Downs2 events
Fill Rate
100.0%
Avg Gap
5.9%
Avg 50% Fill
1d
Avg Fill
12d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 100% | 100% | 100% | 100% |
| fills 50% | 0% | 0% | 0% | 0% |
| fills 75% | 0% | 0% | 0% | 0% |
| fills 100% | 0% | 0% | 0% | 0% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 100% | 100% | 100% | 100% |
| fills 50% | 100% | 100% | 100% | 100% |
| fills 75% | 50% | 50% | 50% | 50% |
| fills 100% | 50% | 50% | 50% | 50% |
Complete Gap History — 3 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 3 days ago | $238.93 | -5.20% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-09-22 | $244.88 | -6.65% | Filled | 1d | 23d | 53% | 62% | 62% | 75% |
| 2026-07-23 | $209.83 | +8.70% | Open | — | — | 44% | 44% | 44% | 44% |
Related: DGX quote & chart · After hours · Technical analysis · Fundamentals · Earnings · Short interest
Frequently Asked Questions
What is DGX's premarket price?
Quest Diagnostics (DGX) is trading at $239.80 in premarket, down $3.48 (1.44%) from the previous close of $243.28.
Why is DGX moving in premarket?
Quest Diagnostics (DGX) is down 1.44% 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 DGX premarket headlines and gap history below for the likely catalyst.
When does DGX premarket trading start?
Premarket trading for DGX 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 DGX fill its gaps?
Over the past 5 years, 0% of DGX gap-ups have fully filled and 100% of gap-downs have filled. Median time to fill is 12 trading days for gap-downs.
Does DGX have any unfilled gaps?
No. DGX has no unfilled gap events from the past 60 days; all recent gaps have been filled.
What's the average return after a DGX gap?
Based on 3 qualifying gap events over the past 5 years, the average 20-trading-day return after a DGX gap up is +5.79%, and after a gap down is +3.73%.
When does DGX report earnings?
DGX reported earnings on Oct 20, 2026 before the open, with an estimated EPS of $2.87. Quest Diagnostics is estimated to report Q3 2026 earnings on October 20, 2026, before the market opens. While major calendars like MarketBeat and Zacks align with this date, the company has not yet issued an official press release confirming it.