Parallax Volatility Advisers’s Quest Diagnostics DGX Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | – | Sell |
-18,000
| Closed | -$3.12M | – | 1561 |
|
|
2025
Q4 | $3.12M | Hold |
18,000
| – | – | 0.01% | 818 |
|
|
2025
Q3 | $3.43M | Sell |
18,000
-20,300
| -53% | -$3.6M | 0.01% | 775 |
|
|
2025
Q2 | $6.88M | Buy |
38,300
+18,000
| +89% | +$3.13M | 0.02% | 538 |
|
|
2025
Q1 | $3.43M | Buy |
20,300
+9,600
| +90% | +$1.58M | 0.01% | 718 |
|
|
2024
Q4 | $1.61M | Buy |
+10,700
| New | +$1.66M | ﹤0.01% | 1186 |
|
|
2024
Q1 | – | Sell |
-3,100
| Closed | -$427K | – | 1944 |
|
|
2023
Q4 | $427K | Sell |
3,100
-4,400
| -59% | -$578K | ﹤0.01% | 1630 |
|
|
2023
Q3 | $914K | Buy |
+7,500
| New | +$999K | ﹤0.01% | 1397 |
|
|
2023
Q1 | – | Sell |
-36,900
| Closed | -$5.77M | – | 2817 |
|
|
2022
Q4 | $5.77M | Buy |
+36,900
| New | +$5.3M | 0.01% | 970 |
|
|
2021
Q4 | – | Sell |
-40,000
| Closed | -$5.81M | – | 1998 |
|
|
2021
Q3 | $5.81M | Sell |
40,000
-100
| -0.2% | -$14.6K | 0.01% | 799 |
|
|
2021
Q2 | $5.29M | Sell |
40,100
-30,500
| -43% | -$3.99M | 0.01% | 647 |
|
|
2021
Q1 | $9.06M | Sell |
70,600
-57,400
| -45% | -$7.07M | 0.02% | 409 |
|
|
2020
Q4 | $15.3M | Buy |
128,000
+115,200
| +900% | +$14M | 0.02% | 599 |
|
|
2020
Q3 | $1.46M | Sell |
12,800
-67,300
| -84% | -$7.95M | ﹤0.01% | 1830 |
|
|
2020
Q2 | $9.13M | Sell |
80,100
-2,100
| -3% | -$223K | 0.01% | 831 |
|
|
2020
Q1 | $6.6M | Buy |
+82,200
| New | +$8.51M | 0.01% | 761 |
|
|
2019
Q2 | – | Sell |
-80,000
| Closed | -$7.19M | – | 2728 |
|
|
2019
Q1 | $7.19M | Buy |
+80,000
| New | +$6.93M | 0.01% | 575 |
|
|
2017
Q2 | – | Sell |
-3,600
| Closed | -$354K | – | 2546 |
|
|
2017
Q1 | $354K | Sell |
3,600
-2,400
| -40% | -$229K | ﹤0.01% | 1676 |
|
|
2016
Q4 | $552K | Buy |
6,000
+2,000
| +50% | +$172K | ﹤0.01% | 1464 |
|
|
2016
Q3 | $339K | Sell |
4,000
-7,300
| -65% | -$613K | ﹤0.01% | 1639 |
|
|
2016
Q2 | $920K | Buy |
11,300
+2,500
| +28% | +$190K | ﹤0.01% | 1220 |
|
|
2016
Q1 | $629K | Sell |
8,800
-62,000
| -88% | -$4.16M | ﹤0.01% | 1366 |
|
|
2015
Q4 | $5.04M | Buy |
70,800
+5,800
| +9% | +$390K | 0.01% | 682 |
|
|
2015
Q3 | $4M | Sell |
65,000
-14,800
| -19% | -$1.03M | 0.01% | 750 |
|
|
2015
Q2 | $5.79M | Buy |
79,800
+76,700
| +2,474% | +$5.66M | 0.01% | 670 |
|
|
2015
Q1 | $238K | Buy |
3,100
+2,600
| +520% | +$186K | ﹤0.01% | 1978 |
|
|
2014
Q4 | $34K | Sell |
500
-29,800
| -98% | -$1.88M | ﹤0.01% | 4186 |
|
|
2014
Q3 | $1.84M | Buy |
+30,300
| New | +$1.87M | 0.01% | 1150 |
|
|
2014
Q2 | – | Sell |
-2,200
| Closed | -$127K | – | 4091 |
|
|
2014
Q1 | $127K | Buy |
+2,200
| New | +$118K | ﹤0.01% | 1726 |
|
|
2013
Q4 | – | Sell |
-12,400
| Closed | -$767K | – | 3379 |
|
|
2013
Q3 | $767K | Sell |
12,400
-29,000
| -70% | -$1.74M | ﹤0.01% | 733 |
|
|
2013
Q2 | $2.51M | Buy |
+41,400
| New | +$2.47M | 0.01% | 543 |
|
Other funds holding DGX
VCM
VPM
EIG
Parallax Volatility Advisers's DGX Position: Q3 2025 in Review
Parallax Volatility Advisers sold out of Quest Diagnostics (DGX) in Q3 2025, closing a stake of 3,467 shares — an estimated $615K sold.
Parallax Volatility Advisers first reported a position in DGX in Q2 2013 and held it in 21 quarters. The position peaked at $33.8M in Q2 2020. 1,006 funds tracked by Wall St. Rank hold DGX as of Q3 2025.
- Parallax Volatility Advisers reported no remaining Quest Diagnostics position as of Q3 2025 after selling out during the quarter.
- Parallax Volatility Advisers sold 3,467 Quest Diagnostics shares in Q3 2025, an estimated $615K.
- Parallax Volatility Advisers first reported a position in Quest Diagnostics in Q2 2013 and held it in 21 quarters.
- Parallax Volatility Advisers's Quest Diagnostics position peaked at $33.8M in Q2 2020.
- 1,006 funds tracked by Wall St. Rank held Quest Diagnostics as of Q3 2025.
Based on Parallax Volatility Advisers's 13F filing for Q3 2025, filed 14 Nov 2025.