WLK / Westlake Corporation - Put/Call Ratio, Options Sentiment, Unusual Options Activity

Westlake Corporation
US ˙ NYSE ˙ US9604131022

Put/Call Ratios - Forward Looking and Historical

The OI Put/Call Ratio for WLK / Westlake Corporation is 2.88. The Put/Call Ratio shows the total number of disclosed open put option positions divided by the number of open call options. Since puts are generally a bearish bet and calls are a bullish bet, put/call ratios greater than 1 indicate a bearish sentiment, and ratios less than one indicate a bullish sentiment.

Update Frequency: Daily

See top companies with the most optimistic put/call ratios.

2.88
150 out of 4,044
By looking at the put/call ratios of specific expirations, we can deduce what the options markets think of the short, medium, and long-term outlook of the company.
WLK / Westlake Corporation Put/Call Ratio by Expiry
Expiry DTX Open Put
Interest
Open Call
Interest
Put/Call
Ratio
2025-09-19 9 6,546
2025-10-17 37 2,670
2025-12-19 100 305
2026-01-16 128 48
2026-04-17 219 1
WLK / Westlake Corporation Put/Call Ratio
Date Put OI Put OI
(OTM)
Call OI Call OI
(OTM)
Put/Call
Ratio
Put/Call
Ratio (OTM)
2025-09-09 9,570 9,275
2025-09-08 9,566 9,275
2025-09-05 9,607 9,536
2025-09-04 9,634 9,315
2025-09-03 9,494 9,314
2025-09-02 9,492 9,314
2025-08-29 9,502 9,324
2025-08-28 9,500 9,322
2025-08-27 9,480 9,321
2025-08-26 9,477 9,318
2025-08-25 9,472 9,311
2025-08-22 9,526 9,469
2025-08-21 9,523 7,274
2025-08-20 9,522 7,274
2025-08-19 9,524 7,274
2025-08-18 9,484 7,239
2025-08-15 9,620 9,417
2025-08-14 9,584 9,401
2025-08-13 9,599 9,417
2025-08-12 9,595 7,297
Unusual Options Activity - Trade Volume

The Put/Call Ratio shows the total number of disclosed open put option positions divided by the number of open call option options. Since puts are generally a bearish bet and calls are a bullish bet, put/call ratios greater than 1 indicate a bearish sentiment, and ratios less than one indicate a bullish sentiment.

Unusual options activity (UOA) is generally considered a strong signal for a directional price movement. One metric of unusual options activity is the total volume of put or call options divided by the open interest in the same option type. If the total volume of call or put options exceeds the current open interest, then that is considered unusual and indicates a strong directional signal. In the table below, any date on which the volume of an option exceeds the current open interest is highlighted in green (for call options) or red (for put options).

For example, if, on any trading day, the call volume exceeds the current call open interest, then the Call Volume/Call OI ratio will be greater than one and that cell in the able will be highlighted in green. This would indicate a significant purchase of call options, which is a bullish signal. Likewise, if the opposite is true - the put volume exceeds the put open interest, then the table cell would be highlighted in red and represent a strong bearish signal.

Update Frequency: Daily

WLK / Westlake Corporation Call Options Volume WLK / Westlake Corporation Put Options Volume
Date Put
Volume
Put
OI
Put Volume
/Put OI
Call
Volume
Call
OI
Call Volume
/Call OI
2025-09-09 16 9,570 427 3,330
2025-09-08 6 9,566 3 3,327
2025-09-05 81 9,607 10 3,325
2025-09-04 43 9,634 1 3,325
2025-09-03 151 9,494 4 3,325
2025-09-02 4 9,492 17 3,327
2025-08-29 10 9,502 8 3,335
2025-08-28 6 9,500 19 3,335
2025-08-27 28 9,480 8 3,330
2025-08-26 8 9,477 55 3,301
2025-08-25 38 9,472 19 3,292
2025-08-22 153 9,526 819 2,623
2025-08-21 10 9,523 50 2,578
2025-08-20 3 9,522 85 2,517
2025-08-19 2 9,524 31 2,512
2025-08-18 42 9,484 44 2,473
2025-08-15 14 9,620 42 3,587
2025-08-14 41 9,584 130 3,491
2025-08-13 63 9,599 207 3,393
2025-08-12 10 9,595 12 3,385
2025-08-11 34 9,575 45 3,375
2025-08-08 4 9,580 18 3,379
2025-08-07 9 9,580 3 3,377
2025-08-06 23 9,581 6 3,379
2025-08-05 39 9,573 562 2,922
Source: CBOE
Option Premium Bought/Sold - Total Market

Update Frequency: Daily

Date Put
Premium Bought
Put
Premium Sold
Net Put
Premium Bought
Call
Premium Bought
Call
Premium Sold
Net Call
Premium Bought
Net Long
Premium Bought
2025-09-09 2,440 195 2,245 458 158,970 -158,512 -160,757
2025-09-08
2025-09-05
2025-09-04
2025-09-03
2025-09-02
2025-08-29
2025-08-28
2025-08-27
2025-08-26
2025-08-25
2025-08-22
2025-08-21
2025-08-20
2025-08-19
2025-08-18
2025-08-15
2025-08-14
2025-08-13
2025-08-12
Source: CBOE
Option Greeks - Delta, Gamma, Theta

Update Frequency: Daily

Date Put Θ
(Avg)
Call Θ
(Avg)
Θ
(Avg)
Put Γ
(Avg)
Call Γ
(Avg)
Γ
(Avg)
Put Δ
(Avg)
Call Δ
(Avg)
Δ
(Avg)
2025-09-09
2025-09-08
2025-09-05
2025-09-04
2025-09-03
2025-09-02
2025-08-29
2025-08-28
2025-08-27
2025-08-26
2025-08-25
2025-08-22
2025-08-21
2025-08-20
2025-08-19
2025-08-18
2025-08-15
2025-08-14
2025-08-13
2025-08-12
Option Trading Volume - Total Market

Update Frequency: Daily

Date Put
Volume
Put Volume
(20d ma)
Put
Volume/20ma (%)
Call
Volume
Call Volume
(20d ma)
Call
Volume/20ma (%)
Total Volume Put/Call
Volume
Put/Call
Volume (20d ma)
2025-09-09 16 34 47.06 427 76 561.84 443 0.04 0.45
2025-09-08
2025-09-05
2025-09-04
2025-09-03
2025-09-02
2025-08-29
2025-08-28
2025-08-27
2025-08-26
2025-08-25
2025-08-22
2025-08-21
2025-08-20
2025-08-19
2025-08-18
2025-08-15
2025-08-14
2025-08-13
2025-08-12
Source: CBOE
Option Trading Volume - Exchange

Update Frequency: Daily

Date CBOE C2 EDGX BZX PHLX NASDAQ BX GEMX ISE MRX AMEX ARCA MIAX PEARL EMLD BOX Total
2025-09-09 0 0 0 2 402 10 0 3 5 0 0 0 0 0 0 0 443
2025-09-08 1 0 2 1 0 0 0 0 1 0 1 2 0 1 0 0 9
2025-09-05 2 0 0 1 33 1 0 0 7 1 11 0 0 32 0 0 91
2025-09-04 0 0 0 1 10 0 0 0 0 0 0 12 0 0 0 0 44
2025-09-03 0 0 1 1 13 116 0 0 10 0 2 0 0 0 0 0 155
2025-09-02 0 0 0 0 5 0 0 1 2 0 1 0 0 0 0 10 21
2025-08-29 0 0 0 0 3 0 0 0 12 0 0 3 0 0 0 0 18
2025-08-28 0 0 4 0 4 0 0 0 3 0 0 0 0 0 0 3 25
2025-08-27 0 2 0 0 0 8 0 0 2 5 1 14 2 0 0 1 36
2025-08-26 0 8 8 1 8 0 0 1 3 0 1 6 0 0 16 2 63
2025-08-25 7 0 0 1 5 0 0 5 19 0 0 1 1 0 1 7 57
2025-08-22 11 1 181 5 558 0 0 1 58 1 59 5 7 0 4 12 972
2025-08-21 0 1 0 0 2 2 1 0 2 0 1 41 0 0 0 10 60
2025-08-20 0 0 0 5 4 0 0 2 3 0 0 40 3 0 0 26 88
2025-08-19 0 0 0 0 13 1 0 0 15 0 1 0 0 0 0 1 33
2025-08-18 4 0 12 0 37 0 0 0 24 0 2 2 0 0 1 1 86
2025-08-15 3 10 2 10 4 0 0 6 6 0 3 2 4 0 0 4 56
2025-08-14 8 0 0 2 11 3 7 9 34 3 3 71 7 1 5 6 171
2025-08-13 4 4 4 20 25 4 6 10 52 0 11 5 7 14 11 4 270
2025-08-12 4 0 0 7 0 0 0 2 1 0 2 1 2 0 0 3 22
Source: CBOE
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