Quest Diagnostics Incorporated
US ˙ NYSE ˙ US74834L1008

SecurityDGX / Quest Diagnostics Incorporated
InstitutionCreative Planning
Latest Disclosed Ownership21,638 shares
Latest Disclosed Value $ 4,240,686
Creative Planning ownership in DGX / Quest Diagnostics Incorporated

On May 12, 2026 - Creative Planning filed a 13F-HR form disclosing ownership of 21,638 shares of Quest Diagnostics Incorporated (US:DGX) valued at $4,240,615 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 18,945 shares of Quest Diagnostics Incorporated. This represents a change in shares of 14.21% during the quarter. The current value of the position is $4,190,631 USD.

Creative Planning has a history of taking positions in derivatives of the underlying security (DGX) in the form of stock options.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

DGX / Quest Diagnostics Incorporated Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F QUEST DIAGNOSTICS COM 74834L100 21,638 2,693 14.21 4,241 28.99 0.0028
2026-02-17 2025-12-31 13F QUEST DIAGNOSTICS COM 74834L100 18,945 -300 -1.56 3,288 -10.36 0.0024
2025-11-14 2025-09-30 13F QUEST DIAGNOSTICS COM 74834L100 19,245 1,994 11.56 3,668 18.37 0.0028
2025-08-08 2025-06-30 13F QUEST DIAGNOSTICS COM 74834L100 17,251 1,842 11.95 3,099 18.83 0.0026
2025-05-15 2025-03-31 13F QUEST DIAGNOSTICS COM 74834L100 15,409 34 0.22 2,607 12.42 0.0025
2025-02-14 2024-12-31 13F QUEST DIAGNOSTICS COM 74834L100 15,375 3,783 32.63 2,319 28.90 0.0023
2024-10-11 2024-09-30 13F QUEST DIAGNOSTICS COM 74834L100 11,592 185 1.62 1,800 15.25 0.0018
2024-08-15 2024-06-30 13F QUEST DIAGNOSTICS COM 74834L100 11,407 1,929 20.35 1,561 23.79 0.0017
2024-05-13 2024-03-31 13F QUEST DIAGNOSTICS COM 74834L100 9,478 -33 -0.35 1,262 -3.81 0.0014
2024-02-14 2023-12-31 13F QUEST DIAGNOSTICS COM 74834L100 9,511 1,071 12.69 1,311 27.53 0.0024
2023-11-16 2023-09-30 13F QUEST DIAGNOSTICS COM 74834L100 8,440 -428 -4.83 1,028 -17.50 0.0014
2023-07-21 2023-06-30 13F QUEST DIAGNOSTICS COM 74834L100 8,868 348 4.08 1,247 3.40 0.0017
2023-05-15 2023-03-31 13F QUEST DIAGNOSTICS COM 74834L100 8,520 -1,000 -10.50 1,205 -19.07 0.0017
2023-02-10 2022-12-31 13F QUEST DIAGNOSTICS COM 74834L100 9,520 538 5.99 1,489 35.12 0.0022
2022-11-03 2022-09-30 13F QUEST DIAGNOSTICS COM 74834L100 8,982 257 2.95 1,102 -5.00 0.0019
2022-08-15 2022-06-30 13F QUEST DIAGNOSTICS COM 74834L100 8,725 1,309 17.65 1,160 14.29 0.0019
2022-05-16 2022-03-31 13F QUEST DIAGNOSTICS COM 74834L100 7,416 8 0.11 1,015 -20.83 0.0016
2022-02-11 2021-12-31 13F QUEST DIAGNOSTICS COM 74834L100 7,408 98 1.34 1,282 20.72 0.0021
2021-11-10 2021-09-30 13F QUEST DIAGNOSTICS COM 74834L100 7,310 291 4.15 1,062 14.69 0.0019
2021-08-04 2021-06-30 13F QUEST DIAGNOSTICS COM 74834L100 7,019 -2,019 -22.34 926 -20.17 0.0016
2021-04-30 2021-03-31 13F CreativePlanning COM 74834L100 9,038 214 2.43 1,160 10.27 0.0023
2021-01-29 2020-12-31 13F QUEST DIAGNOSTICS COM 74834L100 8,824 374 4.43 1,052 8.79 0.0023
2020-11-05 2020-09-30 13F QUEST DIAGNOSTICS COM 74834L100 8,450 -540 -6.01 967 -5.66 0.0025
2020-07-23 2020-06-30 13F QUEST DIAGNOSTICS COM 74834L100 8,990 -236 -2.56 1,025 38.33 0.0030
2020-05-05 2020-03-31 13F QUEST DIAGNOSTICS COM 74834L100 9,226 1,056 12.93 741 -15.02 0.0026
2020-01-30 2019-12-31 13F QUEST DIAGNOSTICS COM 74834L100 8,170 147 1.83 872 1.51 0.0026
2019-11-01 2019-09-30 13F QUEST DIAGNOSTICS COM 74834L100 8,023 -367 -4.37 859 0.59 0.0028
2019-07-26 2019-06-30 13F QUEST DIAGNOSTICS COM 74834L100 8,390 2,138 34.20 854 51.96 0.0029
2019-04-24 2019-03-31 13F QUEST DIAGNOSTICS COM 74834L100 6,252 -305 -4.65 562 2.93 0.0020
2019-02-12 2018-12-31 13F/A-1 QUEST DIAGNOSTICS COM 74834L100 6,557 -375 -5.41 546 -27.01 0.0022
2019-02-01 2018-12-31 13F QUEST DIAGNOSTICS COM 74834L100 6,557 -375 546
2018-10-25 2018-09-30 13F QUEST DIAGNOSTICS COM 74834L100 6,932 1,545 28.68 748 26.35 0.0028
2018-07-20 2018-06-30 13F QUEST DIAGNOSTICS COM 74834L100 5,387 333 6.59 592 16.77 0.0023
2018-04-18 2018-03-31 13F QUEST DIAGNOSTICS COM 74834L100 5,054 -881 -14.84 507 -13.33 0.0021
2018-01-17 2017-12-31 13F QUEST DIAGNOSTICS COM 74834L100 5,935 -586 -8.99 585 -4.26 0.0025
2017-10-17 2017-09-30 13F QUEST DIAGNOSTICS COM 74834L100 6,521 2,470 60.97 611 35.78 0.0028
2017-07-12 2017-06-30 13F QUEST DIAGNOSTICS COM 74834L100 4,051 -108 -2.60 450 10.29 0.0023
2017-04-07 2017-03-31 13F QUEST DIAGNOSTICS COM 74834L100 4,159 980 30.83 408 39.73 0.0022
2017-01-09 2016-12-31 13F QUEST DIAGNOSTICS COM 74834L100 3,179 -402 -11.23 292 -3.63 0.0018
2016-10-12 2016-09-30 13F QUEST DIAGNOSTICS COM 74834L100 3,581 1,609 81.59 303 88.20 0.0019
2016-07-12 2016-06-30 13F QUEST DIAGNOSTICS COM 74834L100 1,972 234 13.46 161 29.84 0.0012
2016-04-08 2016-03-31 13F QUEST DIAGNOSTICS COM 74834L100 1,738 173 11.05 124 11.71 0.0010
2016-01-11 2015-12-31 13F QUEST DIAGNOSTICS COM 74834L100 1,565 -15 -0.95 111 14.43 0.0009
2015-10-09 2015-09-30 13F QUEST DIAGNOSTICS COM 74834L100 1,580 1,580 0.00 97 0.0009
2015-07-09 2015-06-30 13F QUEST DIAGNOSTICS COM 74834L100 0 -1,787 -100.00 0 -100.00
2015-04-13 2015-03-31 13F QUEST DIAGNOSTICS COM 74834L100 1,787 1,787 0.00 137 0.0013
2015-01-29 2014-12-31 13F QUEST DIAGNOSTICS COM 74834L100 0 -2,151 -100.00 0 -100.00
2014-10-10 2014-09-30 13F QUEST DIAGNOSTICS COM 74834L100 2,151 -699 -24.53 131 -21.56 0.0015
2014-08-20 2014-06-30 13F QUEST DIAGNOSTICS COM 74834L100 2,850 833 41.30 167 42.74 0.0022
2014-04-11 2014-03-31 13F QUEST DIAGNOSTICS COM 74834L100 2,017 327 19.35 117 30.00 0.0018
2014-01-06 2013-12-31 13F QUEST DIAGNOSTICS COM 74834L100 1,690 170 11.18 90 -4.26 0.0015
2013-10-10 2013-09-30 13F QUEST DIAGNOSTICS COM 74834L100 1,520 400 35.71 94 38.24 0.0019
2013-07-09 2013-06-30 13F QUEST DIAGNOSTICS COM 74834L100 1,120 1,120 68 0.0016
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2021-01-29 2020-12-31 13F QUEST DIAGNOSTICS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-05 2020-09-30 13F QUEST DIAGNOSTICS COM Put 300 1 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.