WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

CHARLES SCHWAB INVESTMENT MANAGEMENT INC's Holding History (CIK: 0000884546)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 297,248 Value ($000) $21,979 Avg Close $70.79 Range $55.84 - $82.75
Q3 2025
Shares 272,962 Value ($000) $21,034 Avg Close $82.33 Range $73.94 - $91.41
Q2 2025
Shares 256,845 Value ($000) $19,502 Avg Close $80.28 Range $67.52 - $99.92
Q1 2025
Shares 244,497 Value ($000) $24,457 Avg Close $108.01 Range $95.27 - $116.71
Q4 2024
Shares 236,354 Value ($000) $27,098 Avg Close $126.38 Range $109.67 - $146.31
Q3 2024
Shares 224,362 Value ($000) $33,719 Avg Close $139.25 Range $125.61 - $148.72
Q2 2024
Shares 238,098 Value ($000) $34,481 Avg Close $148.16 Range $138.77 - $156.68
Q1 2024
Shares 232,891 Value ($000) $35,586 Avg Close $135.33 Range $113.88 - $147.53
Q4 2023
Shares 352,924 Value ($000) $49,395 Avg Close $121.60 Range $107.83 - $137.84
Q3 2023
Shares 344,632 Value ($000) $42,965 Avg Close $122.44 Range $108.80 - $131.81
Q2 2023
Shares 353,055 Value ($000) $42,179 Avg Close $108.79 Range $98.37 - $116.78
Q1 2023
Shares 344,800 Value ($000) $39,990 Avg Close $109.37 Range $92.83 - $119.59
Q4 2022
Shares 337,942 Value ($000) $34,653 Avg Close $95.20 Range $80.55 - $107.11
Q3 2022
Shares 334,621 Value ($000) $29,072 Avg Close $90.33 Range $76.70 - $104.08
Q2 2022
Shares 316,223 Value ($000) $30,997 Avg Close $115.03 Range $86.41 - $132.48
Q1 2022
Shares 304,912 Value ($000) $37,626 Avg Close $102.15 Range $87.54 - $119.36
Q4 2021
Shares 297,734 Value ($000) $28,919 Avg Close $91.08 Range $82.73 - $97.95
Q3 2021
Shares 289,189 Value ($000) $26,357 Avg Close $79.74 Range $72.56 - $88.16
Q2 2021
Shares 285,553 Value ($000) $25,726 Avg Close $90.14 Range $80.84 - $98.96
Q1 2021
Shares 288,184 Value ($000) $25,588 Avg Close $80.32 Range $68.77 - $90.16
Q4 2020
Shares 293,274 Value ($000) $23,932 Avg Close $68.91 Range $56.02 - $78.45
Q3 2020
Shares 287,040 Value ($000) $18,147 Avg Close $54.23 Range $46.16 - $63.35
Q2 2020
Shares 304,914 Value ($000) $16,359 Avg Close $42.05 Range $30.99 - $55.36
Q1 2020
Shares 322,390 Value ($000) $12,306 Avg Close $51.06 Range $26.40 - $65.18
Q4 2019
Shares 286,857 Value ($000) $20,124 Avg Close $60.78 Range $52.18 - $68.35
Q3 2019
Shares 276,141 Value ($000) $18,093 Avg Close $57.99 Range $50.43 - $64.27
Q2 2019
Shares 260,540 Value ($000) $18,098 Avg Close $59.69 Range $51.40 - $69.93
Q1 2019
Shares 242,675 Value ($000) $16,468 Avg Close $64.77 Range $57.75 - $72.34
Q4 2018
Shares 301,016 Value ($000) $19,919 Avg Close $64.35 Range $53.36 - $76.44
Q3 2018
Shares 362,134 Value ($000) $30,097 Avg Close $86.83 Range $72.82 - $100.10
Q2 2018
Shares 389,434 Value ($000) $41,915 Avg Close $99.34 Range $90.39 - $110.06
Q1 2018
Shares 362,084 Value ($000) $40,246 Avg Close $98.39 Range $86.89 - $107.41
Q4 2017
Shares 374,624 Value ($000) $39,719 Avg Close $81.78 Range $72.56 - $95.02
Q3 2017
Shares 191,890 Value ($000) $15,945 Avg Close $64.66 Range $57.52 - $74.59
Q2 2017
Shares 189,202 Value ($000) $12,528 Avg Close $55.73 Range $52.23 - $59.49
Q1 2017
Shares 181,558 Value ($000) $11,992 Avg Close $55.38 Range $49.25 - $59.68
Q4 2016
Shares 166,671 Value ($000) $9,332 Avg Close $47.64 Range $42.61 - $53.78
Q3 2016
Shares 148,911 Value ($000) $7,967 Avg Close $41.92 Range $34.93 - $47.03
Q2 2016
Shares 134,193 Value ($000) $5,760 Avg Close $39.55 Range $34.26 - $45.64
Q1 2016
Shares 129,097 Value ($000) $5,978 Avg Close $39.11 Range $34.33 - $46.52
Q4 2015
Shares 119,045 Value ($000) $6,467 Avg Close $49.75 Range $44.01 - $54.52
Q3 2015
Shares 109,778 Value ($000) $5,697 Avg Close $49.96 Range $42.26 - $59.13
Q2 2015
Shares 73,197 Value ($000) $5,021 Avg Close $62.10 Range $58.06 - $67.58
Q1 2015
Shares 83,514 Value ($000) $6,008 Avg Close $54.56 Range $46.07 - $62.01
Q4 2014
Shares 147,169 Value ($000) $8,991 Avg Close $57.80 Range $45.45 - $73.16
Q3 2014
Shares 55,175 Value ($000) $4,778 Avg Close $76.69 Range $70.51 - $83.52
Q2 2014
Shares 72,694 Value ($000) $6,089 Avg Close $63.36 Range $52.18 - $72.01
Q1 2014
Shares 66,716 Value ($000) $4,416 Avg Close $53.68 Range $48.11 - $58.70
Q4 2013
Shares 30,045 Value ($000) $3,668 Avg Close $47.34 Range $43.59 - $51.55
Q3 2013
Shares 28,100 Value ($000) $3,024 Avg Close $42.90 Range $40.28 - $45.40
Q2 2013
Shares 26,348 Value ($000) $2,589 Avg Close $37.72 Range $32.17 - $41.82