Simplex Trading
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Simplex Trading’s CarMax KMX Stock Holding History

Simplex Trading’s Portfolio KMX Stock Details KMX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$4.22M Buy
101,400
+18,800
+23% +$823K ﹤0.01% 1222
2025
Q4 		$3.19M Sell
82,600
-126,900
-61% -$5.07M ﹤0.01% 1606
2025
Q3 		$9.4M Buy
209,500
+81,000
+63% +$4.84M ﹤0.01% 1017
2025
Q2 		$8.64M Buy
128,500
+20,400
+19% +$1.37M ﹤0.01% 982
2025
Q1 		$8.42M Sell
108,100
-33,300
-24% -$2.67M 0.01% 985
2024
Q4 		$11.6M Sell
141,400
-182,300
-56% -$14.3M 0.01% 936
2024
Q3 		$25M Buy
323,700
+59,900
+23% +$4.74M 0.01% 551
2024
Q2 		$19.3M Buy
263,800
+53,500
+25% +$3.86M 0.01% 631
2024
Q1 		$18.3M Sell
210,300
-284,600
-58% -$21.5M 0.01% 752
2023
Q4 		$38M Buy
494,900
+206,800
+72% +$13.9M 0.02% 436
2023
Q3 		$20.4M Buy
288,100
+73,200
+34% +$5.99M 0.02% 583
2023
Q2 		$18M Sell
214,900
-314,900
-59% -$23.1M 0.01% 631
2023
Q1 		$34.1M Buy
529,800
+220,000
+71% +$14.7M 0.03% 387
2022
Q4 		$18.9M Buy
309,800
+130,500
+73% +$8.38M 0.02% 580
2022
Q3 		$11.8M Sell
179,300
-56,500
-24% -$5.16M 0.01% 724
2022
Q2 		$21.3M Buy
235,800
+93,700
+66% +$8.81M 0.02% 477
2022
Q1 		$13.7M Sell
142,100
-24,500
-15% -$2.64M 0.01% 685
2021
Q4 		$21.7M Buy
166,600
+45,700
+38% +$6.4M 0.02% 477
2021
Q3 		$15.8M Buy
120,900
+29,800
+33% +$3.97M 0.01% 540
2021
Q2 		$11.8M Buy
+91,100
New +$11.3M 0.01% 648
2021
Q1 		– Sell
-1,151
Closed -$10.9M – 9412
2020
Q4 		$10.9M Sell
1,151
-282
-20% -$26.4K 0.01% 548
2020
Q3 		$13.2M Buy
1,433
+1,058
+282% +$106K 0.02% 428
2020
Q2 		$3.36M Sell
375
-29
-7% -$2.27K 0.01% 1109
2020
Q1 		$2.17M Sell
404
-396
-50% -$33.5K ﹤0.01% 1226
2019
Q4 		$7.01M Buy
800
+243
+44% +$22.9K 0.02% 614
2019
Q3 		$4.9M Sell
557
-455
-45% -$39K 0.01% 732
2019
Q2 		$8.79M Sell
1,012
-922
-48% -$72.1K 0.02% 445
2019
Q1 		$13.5M Buy
1,934
+1,363
+239% +$84K 0.04% 315
2018
Q4 		$3.58M Buy
571
+337
+144% +$22.2K 0.01% 737
2018
Q3 		$1.75M Sell
234
-251
-52% -$19.1K 0.01% 1360
2018
Q2 		$3.53M Buy
485
+322
+198% +$21.5K 0.01% 751
2018
Q1 		$27K Sell
163
-329
-67% -$21.5K ﹤0.01% 3055
2017
Q4 		$91K Sell
492
-117
-19% -$8.35K ﹤0.01% 1877
2017
Q3 		$14K Sell
609
-338
-36% -$22.5K ﹤0.01% 3483
2017
Q2 		$138K Buy
947
+445
+89% +$26.9K 0.01% 1491
2017
Q1 		$124K Sell
502
-195
-28% -$12.7K 0.01% 1560
2016
Q4 		$22K Buy
697
+274
+65% +$15.4K ﹤0.01% 2952
2016
Q3 		$68K Buy
423
+182
+76% +$10.3K ﹤0.01% 1844
2016
Q2 		$98K Sell
241
-58
-19% -$2.98K 0.01% 1483
2016
Q1 		$122K Buy
299
+92
+44% +$4.34K 0.01% 1196
2015
Q4 		$53K Buy
207
+92
+80% +$5.25K ﹤0.01% 1865
2015
Q3 		$40K Buy
115
+62
+117% +$3.88K ﹤0.01% 2162
2015
Q2 		$28K Sell
53
-20
-27% -$1.43K ﹤0.01% 2157
2015
Q1 		$30K Buy
73
+52
+248% +$3.39K ﹤0.01% 1970
2014
Q4 		$2K Buy
+21
New +$1.16K ﹤0.01% 3754

Other funds holding KMX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
SV
Starboard Value New York $4.57B AUM 4.97% 1-Year Est. Return
SIM
SRS Investment Management New York $9.47B AUM 60.12% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return

Simplex Trading's KMX Position: Q4 2025 in Review

Simplex Trading sold out of CarMax (KMX) in Q4 2025, closing a stake of 26,706 shares — an estimated $1.07M sold.

Simplex Trading first reported a position in KMX in Q1 2015 and held it in 20 quarters. The position peaked at $4.72M in Q3 2021. 537 funds tracked by Wall St. Rank hold KMX as of Q4 2025.

  • Simplex Trading reported no remaining CarMax position as of Q4 2025 after selling out during the quarter.
  • Simplex Trading sold 26,706 CarMax shares in Q4 2025, an estimated $1.07M.
  • Simplex Trading first reported a position in CarMax in Q1 2015 and held it in 20 quarters.
  • Simplex Trading's CarMax position peaked at $4.72M in Q3 2021.
  • 537 funds tracked by Wall St. Rank held CarMax as of Q4 2025.

Based on Simplex Trading's 13F filing for Q4 2025, filed 11 Feb 2026.