Skip to main content
logo
Quest Diagnostics Incorporated (DGX)
NYSE: DGX · Real-Time Price · USD
239.15
+5.72 (2.45%)
At close: Oct 15, 2026, 4:00 PM EDT
242.25
+3.10 (1.30%)
After-hours: Oct 15, 2026, 5:58 PM EDT

Quest Diagnostics Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Oct 15, 2026235.85239.17235.57239.15239.152.45%1,002,681
Oct 14, 2026231.32234.97231.32233.43233.431.29%1,200,142
Oct 13, 2026233.13234.33230.23230.46230.46-0.93%1,009,399
Oct 12, 2026228.66234.64228.66232.63232.630.72%864,465
Oct 9, 2026227.86232.18227.86230.97230.970.07%775,422
Oct 8, 2026228.16231.08226.36230.81230.811.65%909,490
Oct 7, 2026228.51229.80226.81227.06227.06-0.58%927,360
Oct 6, 2026229.92232.09225.78228.39228.39-1.28%1,783,824
Oct 5, 2026232.93233.65229.96232.22231.36-0.48%1,005,062
Oct 2, 2026230.58233.48228.83233.33232.470.97%1,100,862
Oct 1, 2026232.74233.33230.47231.09230.23-0.85%992,175
Sep 30, 2026233.33236.97230.84233.07232.210.47%1,093,356
Sep 29, 2026235.46237.62230.98231.97231.11-2.38%1,536,906
Sep 28, 2026234.27238.10233.81237.62236.740.55%1,036,021
Sep 25, 2026236.37238.25235.48236.32235.44-0.11%741,726
Sep 24, 2026234.08237.29233.55236.59235.711.54%926,898
Sep 23, 2026235.12238.62231.92233.00232.14-0.75%1,129,646
Sep 22, 2026228.59237.29227.24234.76233.89-4.13%2,719,288
Sep 21, 2026247.13248.84243.93244.88243.97-0.64%907,605
Sep 18, 2026246.52247.63244.89246.45245.54-0.40%1,925,637
Sep 17, 2026248.28248.70246.26247.45246.530.15%989,497
Sep 16, 2026245.47248.57244.85247.08246.16-948,753
Sep 15, 2026238.39248.65237.21247.08246.163.86%1,373,615
Sep 14, 2026237.49239.78234.67237.89237.011.22%974,850
Sep 11, 2026233.20235.12229.33235.02234.151.68%997,025
Sep 10, 2026236.32236.48228.57231.14230.28-1.83%1,090,546
Sep 9, 2026233.58236.24232.43235.46234.59-0.02%791,149
Sep 8, 2026233.61237.56231.52235.50234.63-0.69%728,935
Sep 4, 2026235.38238.92235.38237.14236.26-0.94%798,704
Sep 3, 2026242.00242.00236.35239.40238.51-0.58%1,043,291
Sep 2, 2026238.03242.84236.27240.80239.911.94%1,144,114
Sep 1, 2026242.72243.72235.63236.22235.35-1.70%813,392
Aug 31, 2026241.99242.64239.40240.30239.41-1.01%1,358,258
Aug 28, 2026245.17245.28242.27242.76241.86-0.76%639,937
Aug 27, 2026242.83247.19242.44244.61243.70-0.16%839,989
Aug 26, 2026244.11246.00243.49245.00244.090.20%811,024
Aug 25, 2026243.93245.78241.79244.51243.600.26%709,151
Aug 24, 2026243.97246.00242.46243.87242.97-0.21%837,736
Aug 21, 2026240.33244.70239.43244.39243.481.28%1,263,229
Aug 20, 2026239.86245.68237.53241.30240.41-0.19%1,139,473
Aug 19, 2026238.10242.39237.38241.76240.862.33%924,012
Aug 18, 2026238.01239.38236.07236.25235.380.31%693,609
Aug 17, 2026233.94237.17233.00235.52234.650.48%614,271
Aug 14, 2026235.82237.70233.69234.40233.53-0.69%541,802
Aug 13, 2026239.10240.00235.65236.04235.17-0.73%549,033
Aug 12, 2026234.46238.51232.28237.77236.890.11%686,871
Aug 11, 2026236.35239.92235.51237.50236.62-0.05%847,026
Aug 10, 2026236.53239.33235.85237.63236.75-0.30%856,190
Aug 7, 2026236.34239.38236.34238.35237.47-0.06%574,521
Aug 6, 2026237.66238.88235.32238.50237.621.13%642,223