Daily trading records
Quest Diagnostics Historical Stock Prices by Trading Day
Direct answer
Review 60 recent trading days for Quest Diagnostics.
Get free Quest Diagnostics email updates.
Bullstory sends one daily email when new analysis or important company news is available.
Review Quest Diagnostics's price trend and period performance.
The chart connects verified session closes from June 24, 2026 through September 18, 2026.
Period performance is calculated from verified trading sessions.
5-session performance
+4.86%
From the September 11, 2026 close of $235.02 to $246.45 on September 18, 2026.
20-session performance
+2.13%
From the August 20, 2026 close of $241.30 to $246.45 on September 18, 2026.
60-session performance
+21.34%
From the June 24, 2026 close of $203.11 to $246.45 on September 18, 2026.
Verified data
- Trading days shown
- 60
- Coverage start
- June 25, 2026
- Coverage end
- September 18, 2026
- Display currency
- USD
- Market data provider
- Polygon
Explore related company data
Read the frequently asked questions.
What is Quest Diagnostics's latest verified closing price?
Quest Diagnostics closed at $246.45 on September 18, 2026.
What period does Quest Diagnostics's price history cover?
The page shows 60 verified sessions from June 25, 2026 through September 18, 2026.
What data is included in Quest Diagnostics's daily price history?
Each row includes the open, high, low, close, volume and change from the prior close.
Does Quest Diagnostics's price history include market holidays?
The table contains only verified trading sessions and does not create prices for market holidays.
What is the source for Quest Diagnostics's daily prices?
Daily aggregate prices are provided by Polygon.