DGX Monthly Statistics
DGX monthly stock returns with historical performance by month, return charts, and downloadable statistics.
Quest Diagnostics Inc. (DGX) company overview
Quest Diagnostics is a leading independent provider of diagnostic testing, information, and services in the US. The company generates over 97% of its revenue through clinical testing, anatomic pathology, esoteric testing, and substance abuse testing with specimens collected at its national network of roughly 2,400 patient service centers, as well as multiple doctors offices and hospitals. The firm also runs a much smaller diagnostic solutions segment that provides clinical trials testing, risk-assessment services, and information technology solutions.
| Period | Return % |
|---|---|
| 2000-01 | 13.33 |
| 2000-02 | 0.94 |
| 2000-03 | 15.85 |
| 2000-04 | 46.38 |
| 2000-05 | 15.33 |
| 2000-06 | 11.38 |
| 2000-07 | 34.99 |
| 2000-08 | 22.63 |
| 2000-09 | -7.27 |
| 2000-10 | -16.14 |
| 2000-11 | 16.75 |
| 2000-12 | 26.38 |
| 2001-01 | -27.1 |
| 2001-02 | 1.82 |
| 2001-03 | -15.67 |
| 2001-04 | 38.61 |
| 2001-05 | 0.32 |
| 2001-06 | 21.1 |
| 2001-07 | -7.67 |
| 2001-08 | -9.32 |
| 2001-09 | -1.53 |
| 2001-10 | 5.96 |
| 2001-11 | -5.54 |
| 2001-12 | 16.09 |
| 2002-01 | -3.35 |
| 2002-02 | 2.34 |
| 2002-03 | 16.81 |
| 2002-04 | 10.91 |
| 2002-05 | -4.85 |
| 2002-06 | -1.56 |
| 2002-07 | -29.84 |
| 2002-08 | -7.19 |
| 2002-09 | 9.78 |
| 2002-10 | 3.77 |
| 2002-11 | -12.59 |
| 2002-12 | 1.97 |
| 2003-01 | -5.48 |
| 2003-02 | -1.9 |
| 2003-03 | 13.12 |
| 2003-04 | 0.13 |
| 2003-05 | 6.02 |
| 2003-06 | 0.69 |
| 2003-07 | -6.33 |
| 2003-08 | 0.4 |
| 2003-09 | 1.07 |
| 2003-10 | 11.58 |
| 2003-11 | 7.86 |
| 2003-12 | 0.19 |
| 2004-01 | 16.25 |
| 2004-02 | -2.49 |
| 2004-03 | -0.05 |
| 2004-04 | 1.81 |
| 2004-05 | 2.16 |
| 2004-06 | -1.42 |
| 2004-07 | -3.37 |
| 2004-08 | 4.29 |
| 2004-09 | 3.06 |
| 2004-10 | -0.77 |
| 2004-11 | 7.11 |
| 2004-12 | 1.92 |
| 2005-01 | -0.27 |
| 2005-02 | 4.3 |
| 2005-03 | 5.75 |
| 2005-04 | 0.65 |
| 2005-05 | -0.76 |
| 2005-06 | 1.47 |
| 2005-07 | -3.62 |
| 2005-08 | -2.65 |
| 2005-09 | 1.12 |
| 2005-10 | -7.58 |
| 2005-11 | 7.24 |
| 2005-12 | 2.78 |
| 2006-01 | -3.98 |
| 2006-02 | 6.96 |
| 2006-03 | -2.97 |
| 2006-04 | 8.64 |
| 2006-05 | 0.02 |
| 2006-06 | 7.5 |
| 2006-07 | 0.33 |
| 2006-08 | 6.92 |
| 2006-09 | -4.85 |
| 2006-10 | -18.67 |
| 2006-11 | 6.9 |
| 2006-12 | -0.32 |
| 2007-01 | -0.98 |
| 2007-02 | -2.8 |
| 2007-03 | -2.23 |
| 2007-04 | -1.97 |
| 2007-05 | 0.27 |
| 2007-06 | 5.37 |
| 2007-07 | 7.4 |
| 2007-08 | -1.3 |
| 2007-09 | 5.52 |
| 2007-10 | -7.95 |
| 2007-11 | 3.54 |
| 2007-12 | -3.92 |
| 2008-01 | -6.99 |
| 2008-02 | -3.11 |
| 2008-03 | -5.03 |
| 2008-04 | 10.85 |
| 2008-05 | 0.46 |
| 2008-06 | -3.85 |
| 2008-07 | 9.68 |
| 2008-08 | 1.67 |
| 2008-09 | -4.4 |
| 2008-10 | -9.43 |
| 2008-11 | -0.49 |
| 2008-12 | 11.47 |
| 2009-01 | -4.93 |
| 2009-02 | -7.13 |
| 2009-03 | 3.6 |
| 2009-04 | 8.11 |
| 2009-05 | 1.73 |
| 2009-06 | 8.06 |
| 2009-07 | -3.21 |
| 2009-08 | -1.21 |
| 2009-09 | -3.28 |
| 2009-10 | 7.17 |
| 2009-11 | 3.59 |
| 2009-12 | 4.21 |
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| 2026-10-09 | 227.86 | 232.18 | 228.56 | 230.97 | — |
| 2026-10-08 | 228.16 | 231.08 | 226.4 | 230.81 | — |
| 2026-10-07 | 228.51 | 229.79 | 226.81 | 227.06 | — |
| 2026-10-06 | 229.92 | 231.75 | 225.78 | 228.39 | — |
| 2026-10-05 | 232.93 | 233.55 | 229.96 | 232.22 | — |
| 2026-10-02 | 230.58 | 233.47 | 228.83 | 233.33 | — |
| 2026-10-01 | 232.74 | 233.33 | 230.47 | 231.09 | — |
| 2026-09-30 | 233.33 | 236.96 | 230.84 | 233.07 | — |
| 2026-09-29 | 235.46 | 237.61 | 231.06 | 231.97 | — |
| 2026-09-28 | 234.27 | 238.1 | 233.81 | 237.62 | — |
| 2026-09-25 | 236.37 | 238.24 | 235.69 | 236.32 | — |
| 2026-09-24 | 234.08 | 237.29 | 233.55 | 236.59 | — |
| 2026-09-23 | 235.12 | 238.41 | 231.92 | 233 | — |
| 2026-09-21 | 247.13 | 248.84 | 243.93 | 244.88 | — |
| 2026-09-18 | 246.52 | 247.63 | 244.89 | 246.45 | — |
| 2026-09-17 | 248.28 | 248.7 | 246.26 | 247.45 | — |
| 2026-09-16 | 245.47 | 248.57 | 244.85 | 247.08 | — |
| 2026-09-15 | 238.39 | 248.65 | 237.66 | 247.08 | — |
| 2026-09-14 | 237.49 | 239.75 | 234.67 | 237.89 | — |
| 2026-09-11 | 233.2 | 235.12 | 229.33 | 235.02 | — |
| 2026-09-10 | 236.32 | 236.48 | 228.57 | 231.14 | — |
| 2026-09-09 | 233.58 | 236.24 | 232.47 | 235.46 | — |
| 2026-09-08 | 233.61 | 237.55 | 231.52 | 235.5 | — |
| 2026-09-04 | 235.38 | 238.91 | 236.43 | 237.14 | — |
| 2026-09-02 | 238.03 | 242.84 | 236.27 | 240.8 | — |
| 2026-09-01 | 242.72 | 243.72 | 235.63 | 236.22 | — |
| 2026-08-31 | 241.99 | 242.63 | 239.4 | 240.3 | — |
| 2026-08-27 | 242.83 | 247.19 | 242.44 | 244.61 | — |
| 2026-08-26 | 244.11 | 246 | 243.49 | 245 | — |
| 2026-08-25 | 243.93 | 245.78 | 241.79 | 244.51 | — |
| 2026-08-24 | 243.97 | 246 | 242.46 | 243.87 | — |
| 2026-08-21 | 240.33 | 244.7 | 239.43 | 244.39 | — |
| 2026-08-20 | 239.86 | 245.68 | 237.52 | 241.3 | — |
| 2026-08-19 | 238.1 | 242.39 | 237.38 | 241.76 | — |
| 2026-08-18 | 238.01 | 239.34 | 236.08 | 236.25 | — |
| 2026-08-17 | 233.94 | 237.17 | 233 | 235.52 | — |
| 2026-08-14 | 235.82 | 237.7 | 233.68 | 234.4 | — |
| 2026-08-13 | 239.1 | 240 | 235.67 | 236.04 | — |
| 2026-08-12 | 234.46 | 238.51 | 232.28 | 237.77 | — |
| 2026-08-11 | 236.35 | 239.92 | 235.51 | 237.5 | — |
| 2026-08-10 | 236.53 | 239.33 | 235.85 | 237.63 | — |
| 2026-08-07 | 236.34 | 239.38 | 237.23 | 238.35 | — |
| 2026-08-06 | 237.66 | 238.84 | 235.32 | 238.5 | — |
| 2026-08-05 | 234.22 | 236.65 | 233.01 | 235.84 | — |
| 2026-08-04 | 231.95 | 234.54 | 229.76 | 233.72 | — |
| 2026-08-03 | 232.84 | 233.44 | 230.54 | 231.95 | — |
| 2026-07-31 | 234 | 235.29 | 232.01 | 233.01 | — |
| 2026-07-30 | 230.91 | 235.61 | 229.01 | 234.3 | — |
| 2026-07-29 | 235.11 | 237.79 | 232.99 | 235.22 | — |
| 2026-07-28 | 235.18 | 240.02 | 233.98 | 235.94 | — |
| 2026-07-27 | 225.95 | 231.95 | 224.96 | 231.84 | — |
| 2026-07-24 | 228 | 233.21 | 223.42 | 227.86 | — |
| 2026-07-23 | 228.09 | 237.7 | 220 | 227.9 | — |
| 2026-07-22 | 207.13 | 212.3 | 205.41 | 209.83 | — |
| 2026-07-21 | 206.16 | 208.01 | 204.1 | 206.84 | — |
| 2026-07-20 | 208.61 | 211 | 205.61 | 207.66 | — |
| 2026-07-17 | 210.95 | 214.39 | 209.41 | 210.68 | — |
| 2026-07-16 | 201 | 209.56 | 201.96 | 209.41 | — |
| 2026-07-15 | 204.68 | 206.41 | 201.15 | 201.77 | — |
| 2026-07-14 | 202.8 | 208.52 | 201.13 | 206 | — |
| 2026-07-13 | 207.48 | 210.72 | 207.01 | 207.35 | — |
| 2026-07-10 | 208.25 | 209.63 | 207.03 | 207.44 | — |
| 2026-07-09 | 210.2 | 208.58 | 206.34 | 208.05 | — |
| 2026-07-08 | 210.74 | 210.65 | 207.24 | 208.21 | — |
| 2026-07-07 | 216.89 | 219.2 | 212.26 | 212.38 | — |
| 2026-07-06 | 215.64 | 216.52 | 212.57 | 213.45 | — |
| 2026-07-02 | 217.07 | 217.41 | 214.94 | 215.72 | — |
| 2026-07-01 | 213.67 | 216.87 | 211.4 | 216.02 | — |
| 2026-06-30 | 212.89 | 214.21 | 210.68 | 211.95 | — |
| 2026-06-29 | 207.97 | 212.76 | 206.98 | 212.64 | — |
| 2026-06-26 | 207.97 | 209.88 | 206.55 | 209.88 | — |
| 2026-06-25 | 203.14 | 207.85 | 203.78 | 206.24 | — |
| 2026-06-24 | 198.41 | 205.76 | 198.4 | 203.11 | — |
| 2026-06-23 | 195.78 | 197.77 | 194.15 | 197.18 | — |
| 2026-06-22 | 194.13 | 195.16 | 192.9 | 193.58 | — |
| 2026-06-18 | 196.69 | 197.43 | 192.83 | 195 | — |
| 2026-06-17 | 200 | 201.04 | 196.5 | 197.76 | — |
| 2026-06-16 | 203.03 | 204.7 | 199.66 | 201.04 | — |
| 2026-06-15 | 202.25 | 203.2 | 200.37 | 202.18 | — |
| 2026-06-12 | 205.53 | 205.96 | 202.38 | 203.06 | — |
| 2026-06-11 | 204.07 | 207.5 | 202.54 | 203.83 | — |
| 2026-06-10 | 203.35 | 207.3 | 202.96 | 203.78 | — |
| 2026-06-09 | 197.9 | 204.84 | 196.99 | 204.53 | — |
| 2026-06-05 | 197.41 | 201.54 | 197.31 | 200.29 | — |
| 2026-06-04 | 194.99 | 201.99 | 195.14 | 196.12 | — |
| 2026-06-03 | 193 | 195.21 | 192.38 | 193.67 | — |
| 2026-06-02 | 192.93 | 193.31 | 191.01 | 193.16 | — |
| 2026-06-01 | 194.14 | 196.48 | 191.85 | 192.2 | — |
| 2026-05-29 | 196.59 | 197.38 | 194.29 | 194.9 | — |
| 2026-05-28 | 194.03 | 196.79 | 193.91 | 196.2 | — |
| 2026-05-27 | 194.26 | 196.32 | 192.57 | 193.99 | — |
| 2026-05-22 | 193.99 | 196.92 | 193.96 | 195.21 | — |
| 2026-05-21 | 192.73 | 193.83 | 188.88 | 193.82 | — |
| 2026-05-20 | 191.87 | 194.85 | 190.4 | 193.75 | — |
| 2026-05-19 | 189.24 | 191.15 | 187.06 | 190.39 | — |
| 2026-05-18 | 187.64 | 191.15 | 187.25 | 189.84 | — |
| 2026-05-15 | 189.16 | 189.88 | 186.45 | 186.61 | — |
| 2026-05-14 | 190.92 | 192.8 | 187.14 | 187.94 | — |
| 2026-05-13 | 188.81 | 191.11 | 187.51 | 190.85 | — |
| 2026-05-12 | 191.21 | 192.3 | 189.47 | 190.18 | — |
| 2026-05-11 | 187.36 | 190.32 | 187.43 | 189.81 | — |
| 2026-05-08 | 191.71 | 192.2 | 186.23 | 187.39 | — |
| 2026-05-07 | 188.19 | 190.99 | 187.9 | 190.84 | — |
| 2026-05-06 | 190.89 | 192.62 | 188.49 | 189.13 | — |
| 2026-05-05 | 191.39 | 191.7 | 189.18 | 190.84 | — |
| 2026-05-04 | 190.61 | 193.49 | 190.41 | 191.5 | — |
| 2026-05-01 | 194.5 | 196.34 | 192.21 | 192.67 | — |
| 2026-04-30 | 190.24 | 195.87 | 189.91 | 194.2 | — |
| 2026-04-29 | 193.85 | 194.49 | 187.5 | 189.32 | — |
| 2026-04-28 | 198.59 | 198.78 | 194.27 | 195.05 | — |
| 2026-04-27 | 195.91 | 198 | 195.61 | 196.63 | — |
| 2026-04-24 | 199.99 | 200.07 | 194.46 | 196.27 | — |
| 2026-04-23 | 205.28 | 205.65 | 196.96 | 199.53 | — |
| 2026-04-22 | 205.37 | 206.62 | 198.71 | 204 | — |
| 2026-04-21 | 203.25 | 209.79 | 202.13 | 205.04 | — |
| 2026-04-20 | 194.22 | 196.6 | 191.63 | 196.31 | — |
| 2026-04-17 | 190.23 | 196.45 | 190.23 | 195.02 | — |
| 2026-04-16 | 191.22 | 194.26 | 191.17 | 191.46 | — |
| 2026-04-15 | 193.17 | 194.28 | 191.04 | 191.42 | — |
| 2026-04-14 | 192.27 | 194.26 | 191.16 | 194.16 | — |