CPK · Chesapeake Utilities Corp

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$136.88 -1.06 (-0.77%)

Market Cap

$3.29B

24.00M

Options Chain

15-min delayed Underlying $136.88 · today Options Calculator

Positioning

Aug 21, 2026 · 23 days to expiry · 46 contracts

Put / call OI

0.22

Call-heavy positioning

Open interest

contracts outstanding

Volume

traded today

Max pain

$135.00

$1.88 below spot

ATM implied vol

25.2%

market's expected move

Open interest by strike

Calls Puts

100

105

110

115

120

125

130

135

140

145

150

155

160

165

170

175

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 23d Sep 18 51d Dec 18 142d Mar 19 233d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	164.1%	0.979	—		—	—	—	—	0
Call · $65 In the money Last — Breakeven — Implied vol 164.1% Delta 0.979 ≈98% ITM Gamma 0.001 Theta -0.061 Vega 0.023 Open interest 0 Model this call Put · $65 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	150.8%	0.975	—		—	—	—	—	0
Call · $70 In the money Last — Breakeven — Implied vol 150.8% Delta 0.975 ≈98% ITM Gamma 0.001 Theta -0.063 Vega 0.025 Open interest 0 Model this call Put · $70 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	134.6%	0.975	—		—	—	—	—	0
Call · $75 In the money Last — Breakeven — Implied vol 134.6% Delta 0.975 ≈97% ITM Gamma 0.001 Theta -0.058 Vega 0.026 Open interest 0 Model this call Put · $75 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	119.4%	0.975	—		—	—	—	—	0
Call · $80 In the money Last — Breakeven — Implied vol 119.4% Delta 0.975 ≈97% ITM Gamma 0.001 Theta -0.052 Vega 0.026 Open interest 0 Model this call Put · $80 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	108.8%	0.97	—		—	—	—	—	0
Call · $85 In the money Last — Breakeven — Implied vol 108.8% Delta 0.97 ≈97% ITM Gamma 0.002 Theta -0.055 Vega 0.027 Open interest 0 Model this call Put · $85 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	100.5%	0.963	—		—	—	—	—	0
Call · $90 In the money Last — Breakeven — Implied vol 100.5% Delta 0.963 ≈96% ITM Gamma 0.002 Theta -0.061 Vega 0.028 Open interest 0 Model this call Put · $90 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	89.3%	0.959	—		—	-0.036	86.5%	—	0
Call · $95 In the money Last — Breakeven — Implied vol 89.3% Delta 0.959 ≈96% ITM Gamma 0.003 Theta -0.059 Vega 0.029 Open interest 0 Model this call Put · $95 Last — Breakeven — Implied vol 86.5% Delta -0.036 ≈4% ITM Gamma 0.003 Theta -0.051 Vega 0.029 Open interest 0 Model this put
0	—	83.7%	0.947	—		—	-0.038	74.6%	—	0
Call · $100 In the money Last — Breakeven — Implied vol 83.7% Delta 0.947 ≈95% ITM Gamma 0.004 Theta -0.07 Vega 0.03 Open interest 0 Model this call Put · $100 Last — Breakeven — Implied vol 74.6% Delta -0.038 ≈4% ITM Gamma 0.003 Theta -0.045 Vega 0.03 Open interest 0 Model this put
0	—	70.1%	0.946	—		—	-0.046	66.5%	—	0
Call · $105 In the money Last — Breakeven — Implied vol 70.1% Delta 0.946 ≈95% ITM Gamma 0.005 Theta -0.06 Vega 0.03 Open interest 0 Model this call Put · $105 Last — Breakeven — Implied vol 66.5% Delta -0.046 ≈5% ITM Gamma 0.004 Theta -0.048 Vega 0.03 Open interest 0 Model this put
0	—	62.8%	0.929	—		—	-0.049	55.6%	—	0
Call · $110 In the money Last — Breakeven — Implied vol 62.8% Delta 0.929 ≈93% ITM Gamma 0.006 Theta -0.066 Vega 0.054 Open interest 0 Model this call Put · $110 Last — Breakeven — Implied vol 55.6% Delta -0.049 ≈5% ITM Gamma 0.005 Theta -0.042 Vega 0.031 Open interest 0 Model this put
0	—	46.4%	0.942	—		$1.50	-0.058	46.9%	1	1
Call · $115 In the money Last — Breakeven — Implied vol 46.4% Delta 0.942 ≈94% ITM Gamma 0.007 Theta -0.044 Vega 0.032 Open interest 0 Model this call Put · $115 Last $1.50 Breakeven $113.50 Implied vol 46.9% Delta -0.058 ≈6% ITM Gamma 0.007 Theta -0.041 Vega 0.032 Open interest 1 Model this put
0	—	40.4%	0.911	—		—	-0.071	37.3%	—	0
Call · $120 In the money Last — Breakeven — Implied vol 40.4% Delta 0.911 ≈91% ITM Gamma 0.011 Theta -0.052 Vega 0.056 Open interest 0 Model this call Put · $120 Last — Breakeven — Implied vol 37.3% Delta -0.071 ≈7% ITM Gamma 0.011 Theta -0.037 Vega 0.056 Open interest 0 Model this put
0	—	33.9%	0.87	—		—	-0.097	28.9%	—	0
Call · $125 In the money Last — Breakeven — Implied vol 33.9% Delta 0.87 ≈87% ITM Gamma 0.018 Theta -0.058 Vega 0.086 Open interest 0 Model this call Put · $125 Last — Breakeven — Implied vol 28.9% Delta -0.097 ≈10% ITM Gamma 0.017 Theta -0.036 Vega 0.057 Open interest 0 Model this put
0	—	30.8%	0.764	—		$3.42	-0.18	23.6%	1	1
Call · $130 In the money Last — Breakeven — Implied vol 30.8% Delta 0.764 ≈76% ITM Gamma 0.029 Theta -0.075 Vega 0.115 Open interest 0 Model this call Put · $130 Last $3.42 Breakeven $126.58 Implied vol 23.6% Delta -0.18 ≈18% ITM Gamma 0.033 Theta -0.045 Vega 0.088 Open interest 1 Model this put
3	2	26.1%	0.602	$4.51		—	-0.392	24.3%	—	0
Call · $135 In the money Last $4.51 Breakeven $139.51 Implied vol 26.1% Delta 0.602 ≈60% ITM Gamma 0.043 Theta -0.079 Vega 0.135 Open interest 3 Model this call Put · $135 Last — Breakeven — Implied vol 24.3% Delta -0.392 ≈39% ITM Gamma 0.046 Theta -0.068 Vega 0.135 Open interest 0 Model this put
Underlying $136.88
6	12	27%	0.388	$3.66		—	-0.651	21%	—	0
Call · $140 Last $3.66 Breakeven $143.66 Implied vol 27% Delta 0.388 ≈39% ITM Gamma 0.042 Theta -0.08 Vega 0.138 Open interest 6 Model this call Put · $140 In the money Last — Breakeven — Implied vol 21% Delta -0.651 ≈65% ITM Gamma 0.053 Theta -0.055 Vega 0.121 Open interest 0 Model this put
0	—	22%	0.159	—		—	-0.833	23%	—	0
Call · $145 Last — Breakeven — Implied vol 22% Delta 0.159 ≈16% ITM Gamma 0.032 Theta -0.041 Vega 0.096 Open interest 0 Model this call Put · $145 In the money Last — Breakeven — Implied vol 23% Delta -0.833 ≈83% ITM Gamma 0.033 Theta -0.039 Vega 0.093 Open interest 0 Model this put
0	—	27.8%	0.104	—		—	-0.939	23.9%	—	0
Call · $150 Last — Breakeven — Implied vol 27.8% Delta 0.104 ≈10% ITM Gamma 0.019 Theta -0.038 Vega 0.065 Open interest 0 Model this call Put · $150 In the money Last — Breakeven — Implied vol 23.9% Delta -0.939 ≈94% ITM Gamma 0.017 Theta -0.018 Vega 0.035 Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $155 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $155 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $160 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $160 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $165 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $165 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $170 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $170 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $175 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $175 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — 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 19745 CUSIP 165303108 13F (30d) 83 filings 81 filers Visit website