CarMax, Inc.
US ˙ NYSE ˙ US1431301027

SecurityKMX / CarMax, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership99,085 shares
Latest Disclosed Value $ 4,119,954
Citigroup Inc ownership in KMX / CarMax, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 99,085 shares of CarMax, Inc. (US:KMX) valued at $4,119,954 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 262,353 shares of CarMax, Inc.. This represents a change in shares of -62.23% during the quarter. The current value of the position is $4,560,883 USD.

Citigroup Inc 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 347,300 of underlying shares valued at $14,440,734 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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.

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)
2026-05-11 2026-03-31 13F CARMAX COM 143130102 99,085 -163,268 -62.23 4,120 -59.37 0.0018
2026-02-13 2025-12-31 13F CARMAX COM 143130102 262,353 151,935 137.60 10,137 104.62 0.0045
2025-11-10 2025-09-30 13F CARMAX COM 143130102 110,418 -364,567 -76.75 4,954 -84.48 0.0022
2025-08-11 2025-06-30 13F CARMAX COM 143130102 474,985 -143,288 -23.18 31,924 -33.74 0.0157
2025-05-12 2025-03-31 13F CARMAX COM 143130102 618,273 66,308 12.01 48,176 6.75 0.0246
2025-02-12 2024-12-31 13F CARMAX COM 143130102 551,965 402,517 269.34 45,129 290.25 0.0268
2024-11-12 2024-09-30 13F CARMAX COM 143130102 149,448 3,738 2.57 11,564 8.22 0.0067
2024-08-12 2024-06-30 13F CARMAX COM 143130102 145,710 51,228 54.22 10,686 29.84 0.0068
2024-05-10 2024-03-31 13F CARMAX COM 143130102 94,482 16,113 20.56 8,230 36.85 0.0054
2024-02-09 2023-12-31 13F CARMAX COM 143130102 78,369 1,702 2.22 6,014 10.92 0.0042
2023-12-06 2023-09-30 13F/A-1 CARMAX COM 143130102 76,667 -6,081 -7.35 5,423 -21.72 0.0041
2023-11-09 2023-09-30 13F CARMAX COM 143130102 76,667 -6,081 5,423 0.0016
2023-08-10 2023-06-30 13F CARMAX COM 143130102 82,748 -27,046 -24.63 6,926 -1.86 0.0045
2023-05-11 2023-03-31 13F CARMAX COM 143130102 109,794 16,915 18.21 7,058 24.79 0.0049
2023-02-09 2022-12-31 13F CARMAX COM 143130102 92,879 12,695 15.83 5,655 6.84 0.0045
2022-11-10 2022-09-30 13F CARMAX COM 143130102 80,184 9,184 12.94 5,293 -17.59 0.0038
2022-08-10 2022-06-30 13F CARMAX COM 143130102 71,000 -40,038 -36.06 6,423 -40.05 0.0048
2022-05-12 2022-03-31 13F CARMAX COM 143130102 111,038 40,883 58.28 10,714 17.29 0.0065
2022-02-10 2021-12-31 13F CARMAX COM 143130102 70,155 -18,897 -21.22 9,135 -19.83 0.0049
2021-11-10 2021-09-30 13F CARMAX COM 143130102 89,052 -18,022 -16.83 11,395 -17.59 0.0067
2021-08-10 2021-06-30 13F CARMAX COM 143130102 107,074 -25,529 -19.25 13,828 -21.39 0.0083
2021-05-13 2021-03-31 13F CARMAX COM 143130102 132,603 -24,697 -15.70 17,591 18.39 0.0114
2021-02-11 2020-12-31 13F CARMAX COM 143130102 157,300 36,556 30.28 14,859 33.89 0.0088
2020-11-12 2020-09-30 13F CARMAX COM 143130102 120,744 31,773 35.71 11,098 39.30 0.0072
2020-08-12 2020-06-30 13F CARMAX COM 143130102 88,971 23,463 35.82 7,967 125.89 0.0062
2020-05-12 2020-03-31 13F CARMAX COM 143130102 65,508 -70,272 -51.75 3,527 -70.37 0.0032
2020-02-12 2019-12-31 13F CARMAX COM 143130102 135,780 42,748 45.95 11,903 45.39 0.0086
2019-11-08 2019-09-30 13F CARMAX COM 143130102 93,032 43,427 87.55 8,187 90.04 0.0065
2019-08-12 2019-06-30 13F CARMAX COM 143130102 49,605 -44,617 -47.35 4,308 -34.49 0.0035
2019-05-13 2019-03-31 13F CARMAX COM 143130102 94,222 -47,572 -33.55 6,576 -26.06 0.0063
2019-02-12 2018-12-31 13F CARMAX COM 143130102 141,794 128,683 981.49 8,894 808.48 0.0090
2018-11-13 2018-09-30 13F CARMAX COM 143130102 13,111 3,092 30.86 979 34.11 0.0009
2018-08-10 2018-06-30 13F CARMAX COM 143130102 10,019 -7,517 -42.87 730 -32.72 0.0007
2018-05-11 2018-03-31 13F CARMAX COM 143130102 17,536 -24,434 -58.22 1,085 -59.70 0.0009
2018-02-12 2017-12-31 13F CARMAX COM 143130102 41,970 31,671 307.52 2,692 244.69 0.0022
2017-11-13 2017-09-30 13F CARMAX COM 143130102 10,299 -105,918 -91.14 781 -89.34 0.0006
2017-08-11 2017-06-30 13F CARMAX COM 143130102 116,217 106,459 1,090.99 7,329 1,165.80 0.0066
2017-05-12 2017-03-31 13F CARMAX COM 143130102 9,758 -11,019 -53.03 579 -56.69 0.0005
2017-02-10 2016-12-31 13F CARMAX COM 143130102 20,777 -44,587 -68.21 1,337 -61.66 0.0012
2016-11-10 2016-09-30 13F CARMAX COM 143130102 65,364 35,943 122.17 3,487 141.65 0.0033
2016-08-12 2016-06-30 13F CARMAX COM 143130102 29,421 16,772 132.60 1,443 123.37 0.0015
2016-05-13 2016-03-31 13F CARMAX COM 143130102 12,649 -1,570 -11.04 646 -15.78 0.0007
2016-02-12 2015-12-31 13F CARMAX COM 143130102 14,219 -20,663 -59.24 767 -62.91 0.0008
2015-11-13 2015-09-30 13F CARMAX COM 143130102 34,882 11,216 47.39 2,068 31.97 0.0019
2015-08-13 2015-06-30 13F CARMAX COM 143130102 23,666 5,998 33.95 1,567 28.44 0.0014
2015-05-14 2015-03-31 13F CARMAX COM 143130102 17,668 -1,205 -6.38 1,220 -2.87 0.0012
2015-02-17 2014-12-31 13F CARMAX COM 143130102 18,873 -3,608 -16.05 1,256 20.19 0.0011
2014-11-14 2014-09-30 13F CARMAX COM 143130102 22,481 -19,766 -46.79 1,045 -52.44 0.0009
2014-08-14 2014-06-30 13F CARMAX COM 143130102 42,247 -19,815 -31.93 2,197 -24.37 0.0021
2014-05-15 2014-03-31 13F CARMAX COM 143130102 62,062 -70,424 -53.16 2,905 -53.38 0.0030
2014-02-14 2013-12-31 13F CARMAX COM 143130102 132,486 8,324 6.70 6,231 3.56 0.0056
2013-11-14 2013-09-30 13F CARMAX COM 143130102 124,162 -1,529 -1.22 6,017 3.72 0.0056
2013-08-14 2013-06-30 13F CARMAX COM 143130102 125,691 125,691 5,801 0.0057
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
(%)
2024-02-09 2023-12-31 13F CARMAX COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-12-06 2023-09-30 13F/A CARMAX COM Call 55,300 3,911 n/a n/a n/a
2023-11-09 2023-09-30 13F CARMAX COM Call 55,300 3,911 n/a n/a n/a
2021-05-13 2021-03-31 13F CARMAX COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-11 2020-12-31 13F CARMAX COM Call 50,900 -23.11 4,808 -20.97 n/a n/a n/a
2020-11-12 2020-09-30 13F CARMAX COM Call 66,200 -11.73 6,084 -9.41 n/a n/a n/a
2020-08-12 2020-06-30 13F CARMAX COM Call 75,000 35.14 6,716 124.77 n/a n/a n/a
2020-05-12 2020-03-31 13F CARMAX COM Call 55,500 26.71 2,988 -22.19 n/a n/a n/a
2020-02-12 2019-12-31 13F CARMAX COM Call 43,800 -8.75 3,840 -9.09 n/a n/a n/a
2019-11-08 2019-09-30 13F CARMAX COM Call 48,000 -10.11 4,224 -8.91 n/a n/a n/a
2019-08-12 2019-06-30 13F CARMAX COM Call 53,400 -22.27 4,637 -3.30 n/a n/a n/a
2019-05-13 2019-03-31 13F CARMAX COM Call 68,700 -0.87 4,795 10.31 n/a n/a n/a
2019-02-12 2018-12-31 13F CARMAX COM Call 69,300 8.11 4,347 -9.17 n/a n/a n/a
2018-11-13 2018-09-30 13F CARMAX COM Call 64,100 -17.40 4,786 -15.37 n/a n/a n/a
2018-08-10 2018-06-30 13F CARMAX COM Call 77,600 61.00 5,655 89.38 n/a n/a n/a
2018-05-11 2018-03-31 13F CARMAX COM Call 48,200 -31.73 2,986 -34.05 n/a n/a n/a
2018-02-12 2017-12-31 13F CARMAX COM Call 70,600 -47.39 4,528 -55.49 n/a n/a n/a
2017-11-13 2017-09-30 13F CARMAX COM Call 134,200 -39.44 10,174 -27.19 n/a n/a n/a
2017-08-11 2017-06-30 13F CARMAX COM Call 221,600 110.85 13,974 124.52 n/a n/a n/a
2017-05-12 2017-03-31 13F CARMAX COM Call 105,100 46.99 6,224 35.19 n/a n/a n/a
2017-02-10 2016-12-31 13F CARMAX COM Call 71,500 -14.47 4,604 3.23 n/a n/a n/a
2016-11-10 2016-09-30 13F CARMAX COM Call 83,600 -24.34 4,460 -17.68 n/a n/a n/a
2016-08-12 2016-06-30 13F CARMAX COM Call 110,500 39.52 5,418 33.88 n/a n/a n/a
2016-05-13 2016-03-31 13F CARMAX COM Call 79,200 -6.49 4,047 -11.46 n/a n/a n/a
2016-02-12 2015-12-31 13F CARMAX COM Call 84,700 -7.83 4,571 -16.16 n/a n/a n/a
2015-11-13 2015-09-30 13F CARMAX COM Call 91,900 6.61 5,452 -4.47 n/a n/a n/a
2015-08-13 2015-06-30 13F CARMAX COM Call 86,200 -34.70 5,707 -37.35 n/a n/a n/a
2015-05-14 2015-03-31 13F CARMAX COM Call 132,000 24.29 9,109 28.82 n/a n/a n/a
2015-02-17 2014-12-31 13F CARMAX COM Call 106,200 68.30 7,071 141.25 n/a n/a n/a
2014-11-14 2014-09-30 13F CARMAX COM Call 63,100 26.20 2,931 12.69 n/a n/a n/a
2014-08-14 2014-06-30 13F CARMAX COM Call 50,000 40.45 2,601 56.03 n/a n/a n/a
2014-05-15 2014-03-31 13F CARMAX COM Call 35,600 21.09 1,667 20.62 n/a n/a n/a
2014-02-14 2013-12-31 13F CARMAX COM Call 29,400 -22.43 1,382 -24.77 n/a n/a n/a
2013-11-14 2013-09-30 13F CARMAX COM Call 37,900 -40.87 1,837 -37.92 n/a n/a n/a
2013-08-14 2013-06-30 13F CARMAX COM Call 64,100 2,959 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
(%)
2026-05-11 2026-03-31 13F CARMAX COM Put 347,300 0.03 14,441 7.64 n/a n/a n/a
2026-02-13 2025-12-31 13F CARMAX COM Put 347,200 13,416 n/a n/a n/a
2021-05-13 2021-03-31 13F CARMAX COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-11 2020-12-31 13F CARMAX COM Put 95,900 -18.17 9,059 -15.90 n/a n/a n/a
2020-11-12 2020-09-30 13F CARMAX COM Put 117,200 -8.22 10,772 -5.81 n/a n/a n/a
2020-08-12 2020-06-30 13F CARMAX COM Put 127,700 12.21 11,436 86.68 n/a n/a n/a
2020-05-12 2020-03-31 13F CARMAX COM Put 113,800 7.46 6,126 -34.02 n/a n/a n/a
2020-02-12 2019-12-31 13F CARMAX COM Put 105,900 35.25 9,284 34.75 n/a n/a n/a
2019-11-08 2019-09-30 13F CARMAX COM Put 78,300 25.88 6,890 27.57 n/a n/a n/a
2019-08-12 2019-06-30 13F CARMAX COM Put 62,200 -64.74 5,401 -56.13 n/a n/a n/a
2019-05-13 2019-03-31 13F CARMAX COM Put 176,400 23.01 12,312 36.88 n/a n/a n/a
2019-02-12 2018-12-31 13F CARMAX COM Put 143,400 -13.30 8,995 -27.17 n/a n/a n/a
2018-11-13 2018-09-30 13F CARMAX COM Put 165,400 170.70 12,350 177.40 n/a n/a n/a
2018-08-10 2018-06-30 13F CARMAX COM Put 61,100 7.01 4,452 25.87 n/a n/a n/a
2018-05-11 2018-03-31 13F CARMAX COM Put 57,100 -44.83 3,537 -46.71 n/a n/a n/a
2018-02-12 2017-12-31 13F CARMAX COM Put 103,500 -9.92 6,637 -23.81 n/a n/a n/a
2017-11-13 2017-09-30 13F CARMAX COM Put 114,900 -20.26 8,711 -4.14 n/a n/a n/a
2017-08-11 2017-06-30 13F CARMAX COM Put 144,100 53.62 9,087 63.58 n/a n/a n/a
2017-05-12 2017-03-31 13F CARMAX COM Put 93,800 -39.95 5,555 -44.77 n/a n/a n/a
2017-02-10 2016-12-31 13F CARMAX COM Put 156,200 -20.75 10,058 -4.35 n/a n/a n/a
2016-11-10 2016-09-30 13F CARMAX COM Put 197,100 70.06 10,515 85.03 n/a n/a n/a
2016-08-12 2016-06-30 13F CARMAX COM Put 115,900 30.81 5,683 25.51 n/a n/a n/a
2016-05-13 2016-03-31 13F CARMAX COM Put 88,600 -20.25 4,528 -24.48 n/a n/a n/a
2016-02-12 2015-12-31 13F CARMAX COM Put 111,100 32.89 5,996 20.91 n/a n/a n/a
2015-11-13 2015-09-30 13F CARMAX COM Put 83,600 59.54 4,959 42.95 n/a n/a n/a
2015-08-13 2015-06-30 13F CARMAX COM Put 52,400 -32.82 3,469 -35.56 n/a n/a n/a
2015-05-14 2015-03-31 13F CARMAX COM Put 78,000 -25.57 5,383 -22.86 n/a n/a n/a
2015-02-17 2014-12-31 13F CARMAX COM Put 104,800 18.42 6,978 69.74 n/a n/a n/a
2014-11-14 2014-09-30 13F CARMAX COM Put 88,500 20.90 4,111 7.99 n/a n/a n/a
2014-08-14 2014-06-30 13F CARMAX COM Put 73,200 -4.81 3,807 5.78 n/a n/a n/a
2014-05-15 2014-03-31 13F CARMAX COM Put 76,900 -22.87 3,599 -23.23 n/a n/a n/a
2014-02-14 2013-12-31 13F CARMAX COM Put 99,700 141.99 4,688 134.75 n/a n/a n/a
2013-11-14 2013-09-30 13F CARMAX COM Put 41,200 18.39 1,997 24.35 n/a n/a n/a
2013-08-14 2013-06-30 13F CARMAX COM Put 34,800 1,606 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.