WLKP · Westlake Chemical Partners LP

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$22.08 +0.05 (+0.23%)

Market Cap

$776.47M

35.25M

Options Chain

15-min delayed Underlying $22.08 · today Options Calculator

Positioning

Aug 21, 2026 · 23 days to expiry · 20 contracts

Put / call OI

0.49

Call-heavy positioning

Open interest

704

contracts outstanding

Volume

130

traded today

Max pain

$20.00

$2.08 below spot

ATM implied vol

65.6%

market's expected move

Open interest by strike

Calls Puts

7.5

12.5

17.5

22.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 23d Sep 18 51d Nov 20 114d Feb 19 205d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	2	—	—	$14.28		$0.10	-0.019	245.7%	4	2
Call · $7.5 In the money Last $14.28 Breakeven $21.78 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $7.5 Last $0.10 Breakeven $7.40 Implied vol 245.7% Delta -0.019 ≈2% ITM Gamma 0.003 Theta -0.014 Vega 0.003 Open interest 2 Model this put
0	—	160.6%	0.988	—		—	—	—	—	0
Call · $10 In the money Last — Breakeven — Implied vol 160.6% Delta 0.988 ≈99% ITM Gamma 0.005 Theta -0.004 Vega 0.002 Open interest 0 Model this call Put · $10 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	1	135.8%	0.969	$6.73		—	—	—	—	0
Call · $12.5 In the money Last $6.73 Breakeven $19.23 Implied vol 135.8% Delta 0.969 ≈97% ITM Gamma 0.011 Theta -0.009 Vega 0.004 Open interest 0 Model this call Put · $12.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1	20	—	—	$7.04		—	-0.082	123.8%	—	0
Call · $15 In the money Last $7.04 Breakeven $22.04 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $15 Last — Breakeven — Implied vol 123.8% Delta -0.082 ≈8% ITM Gamma 0.022 Theta -0.023 Vega 0.008 Open interest 0 Model this put
2	1	55.1%	0.969	$5.10		$0.32	-0.117	85.3%	10	15
Call · $17.5 In the money Last $5.10 Breakeven $22.60 Implied vol 55.1% Delta 0.969 ≈97% ITM Gamma 0.033 Theta -0.003 Vega 0.004 Open interest 2 Model this call Put · $17.5 Last $0.32 Breakeven $17.18 Implied vol 85.3% Delta -0.117 ≈12% ITM Gamma 0.042 Theta -0.021 Vega 0.013 Open interest 15 Model this put
23	19	61.2%	0.76	$2.05		$0.15	-0.222	55.6%	1	192
Call · $20 In the money Last $2.05 Breakeven $22.05 Implied vol 61.2% Delta 0.76 ≈76% ITM Gamma 0.094 Theta -0.021 Vega 0.018 Open interest 23 Model this call Put · $20 Last $0.15 Breakeven $19.85 Implied vol 55.6% Delta -0.222 ≈22% ITM Gamma 0.098 Theta -0.021 Vega 0.019 Open interest 192 Model this put
Underlying $22.08
300	55	28.3%	0.395	$0.45		$0.79	-0.479	102.9%	2	24
Call · $22.5 Last $0.45 Breakeven $22.95 Implied vol 28.3% Delta 0.395 ≈40% ITM Gamma 0.249 Theta -0.012 Vega 0.022 Open interest 300 Model this call Put · $22.5 In the money Last $0.79 Breakeven $21.71 Implied vol 102.9% Delta -0.479 ≈48% ITM Gamma 0.07 Theta -0.051 Vega 0.022 Open interest 24 Model this put
144	4	53.6%	0.191	$0.12		$4.00	-0.697	80.2%	10	0
Call · $25 Last $0.12 Breakeven $25.12 Implied vol 53.6% Delta 0.191 ≈19% ITM Gamma 0.092 Theta -0.017 Vega 0.015 Open interest 144 Model this call Put · $25 In the money Last $4.00 Breakeven $21.00 Implied vol 80.2% Delta -0.697 ≈70% ITM Gamma 0.078 Theta -0.035 Vega 0.02 Open interest 0 Model this put
1	1	—	—	$0.10		—	-0.831	111.8%	—	0
Call · $30 Last $0.10 Breakeven $30.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $30 In the money Last — Breakeven — Implied vol 111.8% Delta -0.831 ≈83% ITM Gamma 0.04 Theta -0.035 Vega 0.017 Open interest 0 Model this put
0	—	—	—	—		—	-0.858	144.8%	—	0
Call · $35 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $35 In the money Last — Breakeven — Implied vol 144.8% Delta -0.858 ≈86% ITM Gamma 0.027 Theta -0.039 Vega 0.012 Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1604665 CUSIP 960417103 13F (30d) 7 filings 7 filers Visit website Investor relations