CarMax, Inc.
MX ˙ BMV ˙ US1431301027
SecurityMX:KMX / CarMax, Inc.
InstitutionWs Management Lllp
Latest Disclosed Ownership150,455 shares
Latest Disclosed Value $ 6,255,919
Ws Management Lllp ownership in KMX / CarMax, Inc.

On May 14, 2026 - Ws Management Lllp filed a 13F-HR form disclosing ownership of 150,455 shares of CarMax, Inc. (MX:KMX) valued at $6,255,919 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 150,455 shares of CarMax, Inc.. This represents a change in shares of 0.00% during the quarter.

Ws Management Lllp has a history of taking positions in derivatives of the underlying security (KMX) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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.

MX:KMX / CarMax, Inc. 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)
2026-05-14 2026-03-31 13F CARMAX COM 143130102 150,455 0 0.00 6,256 7.60 0.5522
2026-02-17 2025-12-31 13F CARMAX COM 143130102 150,455 -50,000 -24.94 5,814 -35.37 0.4762
2025-11-13 2025-09-30 13F CARMAX COM 143130102 200,455 100,000 99.55 8,994 33.22 0.9787
2025-08-14 2025-06-30 13F CARMAX COM 143130102 100,455 0 0.00 6,752 -13.75 0.9352
2025-05-14 2025-03-31 13F CARMAX COM 143130102 100,455 455 0.46 7,827 -4.27 0.8738
2025-02-14 2024-12-31 13F CARMAX COM 143130102 100,000 0 0.00 8,176 5.66 0.7590
2024-11-13 2024-09-30 13F CARMAX COM 143130102 100,000 0 0.00 7,738 5.51 0.5413
2024-08-14 2024-06-30 13F CARMAX COM 143130102 100,000 0 0.00 7,334 -15.81 0.5403
2024-05-14 2024-03-31 13F CARMAX COM 143130102 100,000 0 0.00 8,711 13.51 0.5484
2024-02-13 2023-12-31 13F CARMAX COM 143130102 100,000 0 0.00 7,674 8.50 0.4556
2023-11-13 2023-09-30 13F CARMAX COM 143130102 100,000 0 0.00 7,073 -15.50 0.5705
2023-08-10 2023-06-30 13F CARMAX COM 143130102 100,000 0 0.00 8,370 30.21 0.7001
2023-05-11 2023-03-31 13F CARMAX COM 143130102 100,000 0 0.00 6,428 5.57 0.6797
2023-02-14 2022-12-31 13F CARMAX COM 143130102 100,000 100,000 6,089 0.5224
2021-05-13 2021-03-31 13F CARMAX COM 143130102 0 -208,406 -100.00 0 -100.00
2021-02-11 2020-12-31 13F CARMAX COM 143130102 208,406 -35,774 -14.65 19,686 -12.28 2.0439
2020-11-12 2020-09-30 13F CARMAX COM 143130102 244,180 65,000 36.28 22,443 39.87 2.4207
2020-08-13 2020-06-30 13F CARMAX COM 143130102 179,180 -57,597 -24.33 16,046 25.89 1.9674
2020-05-13 2020-03-31 13F CARMAX COM 143130102 236,777 -12,735 -5.10 12,746 -41.73 1.3914
2020-02-12 2019-12-31 13F CARMAX COM 143130102 249,512 -71,400 -22.25 21,875 -22.54 1.8744
2019-11-13 2019-09-30 13F CARMAX COM 143130102 320,912 -34,407 -9.68 28,240 -8.47 2.2048
2019-08-13 2019-06-30 13F CARMAX COM 143130102 355,319 -182,122 -33.89 30,852 -17.76 2.0006
2019-05-13 2019-03-31 13F CARMAX COM 143130102 537,441 -113,753 -17.47 37,513 -8.17 2.2723
2019-02-12 2018-12-31 13F CARMAX COM 143130102 651,194 -96,666 -12.93 40,849 -26.85 1.9889
2018-11-13 2018-09-30 13F CARMAX COM 143130102 747,860 0 0.00 55,843 2.47 1.8338
2018-08-13 2018-06-30 13F CARMAX COM 143130102 747,860 -43,124 -5.45 54,497 11.23 1.5374
2018-05-11 2018-03-31 13F CARMAX COM 143130102 790,984 -197,700 -20.00 48,994 -22.73 1.2941
2018-02-13 2017-12-31 13F CARMAX COM 143130102 988,684 -70,800 -6.68 63,404 -21.06 1.8642
2017-11-13 2017-09-30 13F CARMAX COM 143130102 1,059,484 -273,000 -20.49 80,319 -4.41 2.0018
2017-08-11 2017-06-30 13F CARMAX COM 143130102 1,332,484 -300,000 -18.38 84,026 -13.08 3.1236
2017-05-10 2017-03-31 13F CARMAX COM 143130102 1,632,484 -226,666 -12.19 96,676 -19.24 3.8169
2017-02-10 2016-12-31 13F CARMAX COM 143130102 1,859,150 75,994 4.26 119,711 25.84 4.8577
2016-11-14 2016-09-30 13F CARMAX COM 143130102 1,783,156 -100,000 -5.31 95,131 3.03 3.6445
2016-08-12 2016-06-30 13F CARMAX COM 143130102 1,883,156 -22,000 -1.15 92,331 -5.16 3.1988
2016-05-11 2016-03-31 13F CARMAX COM 143130102 1,905,156 500,000 35.58 97,353 28.37 3.7729
2016-02-12 2015-12-31 13F CARMAX COM 143130102 1,405,156 394,956 39.10 75,836 26.55 2.6432
2015-11-09 2015-09-30 13F CARMAX COM 143130102 1,010,200 0 0.00 59,925 -10.41 2.3708
2015-08-12 2015-06-30 13F CARMAX COM 143130102 1,010,200 -301,300 -22.97 66,885 -26.10 2.3200
2015-05-13 2015-03-31 13F CARMAX COM 143130102 1,311,500 -253,500 -16.20 90,507 -13.14 3.0281
2015-02-11 2014-12-31 13F CARMAX COM 143130102 1,565,000 -884,400 -36.11 104,198 -8.42 3.2632
2014-11-13 2014-09-30 13F CARMAX COM 143130102 2,449,400 0 0.00 113,775 -10.69 3.6525
2014-08-13 2014-06-30 13F CARMAX COM 143130102 2,449,400 8,400 0.34 127,393 11.51 3.8769
2014-05-14 2014-03-31 13F CARMAX COM 143130102 2,441,000 0 0.00 114,239 -0.47 3.6196
2014-02-13 2013-12-31 13F CARMAX COM 143130102 2,441,000 28,500 1.18 114,776 -1.85 3.8050
2013-11-13 2013-09-30 13F CARMAX COM 143130102 2,412,500 -600,000 -19.92 116,934 -15.91 4.0467
2013-08-13 2013-06-30 13F CARMAX COM 143130102 3,012,500 3,012,500 139,057 4.4561
Disclosed Call 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
(%)
2016-08-12 2016-06-30 13F CARMAX COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-05-11 2016-03-31 13F CARMAX COM Call 200,000 10,220 n/a n/a n/a
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
(%)
2016-08-12 2016-06-30 13F CARMAX COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-05-11 2016-03-31 13F CARMAX COM Put 75,000 3,833 n/a n/a n/a
2015-05-13 2015-03-31 13F CARMAX COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-02-11 2014-12-31 13F CARMAX COM Put 600,000 39,948 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.