Dimensional Fund Advisors
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Dimensional Fund Advisors’s Westlake Corp WLK Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$96.8M Buy
1,275,169
+335,500
+36% +$25.5M 0.02% 1037
2025
Q1
$94M Buy
939,669
+5,547
+0.6% +$555K 0.02% 1021
2024
Q4
$107M Buy
934,122
+43,544
+5% +$4.99M 0.03% 965
2024
Q3
$134M Sell
890,578
-36,374
-4% -$5.47M 0.03% 795
2024
Q2
$134M Sell
926,952
-42,471
-4% -$6.15M 0.04% 711
2024
Q1
$148M Sell
969,423
-56,643
-6% -$8.66M 0.04% 646
2023
Q4
$144M Sell
1,026,066
-76,483
-7% -$10.7M 0.04% 609
2023
Q3
$137M Sell
1,102,549
-149,322
-12% -$18.6M 0.05% 555
2023
Q2
$150M Sell
1,251,871
-218,579
-15% -$26.1M 0.05% 512
2023
Q1
$171M Sell
1,470,450
-238,385
-14% -$27.6M 0.06% 402
2022
Q4
$175K Sell
1,708,835
-429,533
-20% -$44K 0.05% 394
2022
Q3
$186M Sell
2,138,368
-139,035
-6% -$12.1M 0.07% 311
2022
Q2
$223M Sell
2,277,403
-2,194
-0.1% -$215K 0.08% 252
2022
Q1
$281M Sell
2,279,597
-726
-0% -$89.6K 0.09% 224
2021
Q4
$221M Sell
2,280,323
-29,579
-1% -$2.87M 0.07% 325
2021
Q3
$211M Buy
2,309,902
+31,476
+1% +$2.87M 0.07% 321
2021
Q2
$205M Sell
2,278,426
-54,157
-2% -$4.88M 0.07% 334
2021
Q1
$207M Sell
2,332,583
-12,251
-0.5% -$1.09M 0.07% 312
2020
Q4
$191M Buy
2,344,834
+1,449
+0.1% +$118K 0.07% 303
2020
Q3
$148M Buy
2,343,385
+69,516
+3% +$4.39M 0.06% 318
2020
Q2
$122M Buy
2,273,869
+354,057
+18% +$19M 0.05% 414
2020
Q1
$73.3M Buy
1,919,812
+359,503
+23% +$13.7M 0.04% 653
2019
Q4
$109M Buy
1,560,309
+66,130
+4% +$4.64M 0.04% 650
2019
Q3
$97.9M Buy
1,494,179
+101,701
+7% +$6.66M 0.04% 699
2019
Q2
$96.7M Buy
1,392,478
+213,191
+18% +$14.8M 0.04% 711
2019
Q1
$80M Buy
1,179,287
+6,462
+0.6% +$439K 0.03% 879
2018
Q4
$77.6M Buy
1,172,825
+8,496
+0.7% +$562K 0.04% 783
2018
Q3
$96.8M Buy
1,164,329
+33,918
+3% +$2.82M 0.04% 729
2018
Q2
$122M Buy
1,130,411
+3,499
+0.3% +$377K 0.05% 505
2018
Q1
$125M Sell
1,126,912
-5,435
-0.5% -$604K 0.05% 464
2017
Q4
$121M Sell
1,132,347
-25,915
-2% -$2.76M 0.05% 495
2017
Q3
$96.2M Sell
1,158,262
-28,099
-2% -$2.33M 0.04% 612
2017
Q2
$78.5M Sell
1,186,361
-25,815
-2% -$1.71M 0.04% 729
2017
Q1
$80.1M Sell
1,212,176
-4,295
-0.4% -$284K 0.04% 688
2016
Q4
$68.1M Sell
1,216,471
-120,881
-9% -$6.77M 0.03% 789
2016
Q3
$71.5M Buy
1,337,352
+69,480
+5% +$3.72M 0.04% 682
2016
Q2
$54.4M Buy
1,267,872
+51,107
+4% +$2.19M 0.03% 882
2016
Q1
$56.3M Buy
1,216,765
+261,577
+27% +$12.1M 0.03% 788
2015
Q4
$51.9M Sell
955,188
-76,071
-7% -$4.13M 0.03% 817
2015
Q3
$53.5M Buy
1,031,259
+229,161
+29% +$11.9M 0.04% 745
2015
Q2
$55M Buy
802,098
+11,109
+1% +$762K 0.03% 770
2015
Q1
$56.9M Sell
790,989
-142,653
-15% -$10.3M 0.04% 713
2014
Q4
$57M Sell
933,642
-172,379
-16% -$10.5M 0.04% 651
2014
Q3
$95.8M Sell
1,106,021
-3,280
-0.3% -$284K 0.07% 314
2014
Q2
$92.9M Sell
1,109,301
-8,837
-0.8% -$740K 0.06% 338
2014
Q1
$74M Buy
1,118,138
+416,490
+59% +$27.6M 0.06% 402
2013
Q4
$85.6M Sell
701,648
-323,215
-32% -$39.5M 0.07% 323
2013
Q3
$107M Sell
1,024,863
-414,139
-29% -$43.3M 0.09% 208
2013
Q2
$139M Buy
+1,439,002
New +$139M 0.13% 124