DORM · Dorman Products, Inc.

Track DORM — free

$136.39 +3.31 (+2.49%) At close · Aug 14

Market Cap

$4.05B

29.68M

Options Chain

Underlying $136.39 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 6 days to expiry · 54 contracts · mixed snapshot sessions · Dec 22, 2025–Aug 14, 2026; 21 unknown

Put / call OI

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dated and unknown snapshot sessions

Open interest

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dated and unknown snapshot sessions

Volume

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dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 6d Sep 18 34d Nov 20 97d Feb 19 188d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		$0.60	-0.02	284.7%	1	1
Call · $70 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $70 Snapshot session Jan 14, 2026 Last $0.60 Breakeven $69.40 Implied vol 284.7% Delta -0.02 ≈2% ITM Gamma 0.001 Theta -0.205 Vega 0.013 Open interest 1 Model this put
0	—	—	—	—		$0.90	-0.022	257.5%	1	1
Call · $75 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $75 Snapshot session Jan 12, 2026 Last $0.90 Breakeven $74.10 Implied vol 257.5% Delta -0.022 ≈2% ITM Gamma 0.001 Theta -0.2 Vega 0.013 Open interest 1 Model this put
0	—	—	—	—		$1.25	-0.024	232.1%	1	1
Call · $80 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $80 Snapshot session Jan 30, 2026 Last $1.25 Breakeven $78.75 Implied vol 232.1% Delta -0.024 ≈2% ITM Gamma 0.001 Theta -0.195 Vega 0.014 Open interest 1 Model this put
0	—	—	—	—		$1.20	-0.029	211.9%	1	1
Call · $85 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $85 Snapshot session Feb 23, 2026 Last $1.20 Breakeven $83.80 Implied vol 211.9% Delta -0.029 ≈3% ITM Gamma 0.002 Theta -0.206 Vega 0.014 Open interest 1 Model this put
0	—	—	—	—		$1.70	-0.033	189.5%	1	1
Call · $90 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $90 Snapshot session Feb 23, 2026 Last $1.70 Breakeven $88.30 Implied vol 189.5% Delta -0.033 ≈3% ITM Gamma 0.002 Theta -0.201 Vega 0.014 Open interest 1 Model this put
1	2	—	—	$37.58		$0.28	-0.036	168.2%	31	32
Call · $95 In the money Snapshot session Jan 15, 2026 Last $37.58 Breakeven $132.58 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $95 Snapshot session Aug 3, 2026 Last $0.28 Breakeven $94.72 Implied vol 168.2% Delta -0.036 ≈4% ITM Gamma 0.003 Theta -0.195 Vega 0.015 Open interest 32 Model this put
1	1	—	—	$22.30		—	-0.047	154.7%	—	0
Call · $100 In the money Snapshot session May 26, 2026 Last $22.30 Breakeven $122.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $100 Snapshot session Unknown Last — Breakeven — Implied vol 154.7% Delta -0.047 ≈5% ITM Gamma 0.004 Theta -0.221 Vega 0.015 Open interest 0 Model this put
1	2	—	—	$29.44		$4.50	-0.049	130.6%	1	1
Call · $105 In the money Snapshot session Jan 15, 2026 Last $29.44 Breakeven $134.44 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $105 Snapshot session Jan 16, 2026 Last $4.50 Breakeven $100.50 Implied vol 130.6% Delta -0.049 ≈5% ITM Gamma 0.004 Theta -0.192 Vega 0.016 Open interest 1 Model this put
11	1	—	—	$34.55		$1.00	-0.077	125.1%	2	8
Call · $110 In the money Snapshot session Aug 5, 2026 Last $34.55 Breakeven $144.55 Implied vol — Delta — Gamma — Theta — Vega — Open interest 11 Model this call Put · $110 Snapshot session Aug 3, 2026 Last $1.00 Breakeven $109.00 Implied vol 125.1% Delta -0.077 ≈8% ITM Gamma 0.007 Theta -0.262 Vega 0.028 Open interest 8 Model this put
3	4	—	—	$25.59		$2.05	-0.14	134.5%	1	9
Call · $115 In the money Snapshot session Feb 12, 2026 Last $25.59 Breakeven $140.59 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this call Put · $115 Snapshot session Aug 3, 2026 Last $2.05 Breakeven $112.95 Implied vol 134.5% Delta -0.14 ≈14% ITM Gamma 0.01 Theta -0.437 Vega 0.042 Open interest 9 Model this put
2	1	—	—	$11.10		$2.92	-0.119	90.6%	1	11
Call · $120 In the money Snapshot session May 11, 2026 Last $11.10 Breakeven $131.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $120 Snapshot session Aug 3, 2026 Last $2.92 Breakeven $117.08 Implied vol 90.6% Delta -0.119 ≈12% ITM Gamma 0.013 Theta -0.266 Vega 0.029 Open interest 11 Model this put
4	3	—	—	$14.00		$0.05	-0.112	58.3%	2	2
Call · $125 In the money Snapshot session Jul 8, 2026 Last $14.00 Breakeven $139.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 Model this call Put · $125 Snapshot session Aug 4, 2026 Last $0.05 Breakeven $124.95 Implied vol 58.3% Delta -0.112 ≈11% ITM Gamma 0.019 Theta -0.162 Vega 0.029 Open interest 2 Model this put
0	—	38.7%	0.842	—		$1.50	-0.239	56.4%	5	8
Call · $130 In the money Snapshot session Unknown Last — Breakeven — Implied vol 38.7% Delta 0.842 ≈84% ITM Gamma 0.036 Theta -0.147 Vega 0.045 Open interest 0 Model this call Put · $130 Snapshot session Aug 14, 2026 Last $1.50 Breakeven $128.50 Implied vol 56.4% Delta -0.239 ≈24% ITM Gamma 0.032 Theta -0.254 Vega 0.059 Open interest 8 Model this put
10	1	39.3%	0.595	$3.10		$4.20	-0.422	50.8%	1	1
Call · $135 In the money Snapshot session Aug 14, 2026 Last $3.10 Breakeven $138.10 Implied vol 39.3% Delta 0.595 ≈59% ITM Gamma 0.057 Theta -0.231 Vega 0.069 Open interest 10 Model this call Put · $135 Snapshot session Aug 14, 2026 Last $4.20 Breakeven $130.80 Implied vol 50.8% Delta -0.422 ≈42% ITM Gamma 0.044 Theta -0.286 Vega 0.069 Open interest 1 Model this put
Underlying $136.39
7	9	49.3%	0.354	$10.90		$5.80	-0.639	51.9%	2	2
Call · $140 Snapshot session Aug 4, 2026 Last $10.90 Breakeven $150.90 Implied vol 49.3% Delta 0.354 ≈35% ITM Gamma 0.044 Theta -0.276 Vega 0.062 Open interest 7 Model this call Put · $140 In the money Snapshot session Aug 7, 2026 Last $5.80 Breakeven $134.20 Implied vol 51.9% Delta -0.639 ≈64% ITM Gamma 0.042 Theta -0.281 Vega 0.062 Open interest 2 Model this put
10	4	40.1%	0.123	$2.40		$8.80	-0.809	52.3%	1	1
Call · $145 Snapshot session Aug 7, 2026 Last $2.40 Breakeven $147.40 Implied vol 40.1% Delta 0.123 ≈12% ITM Gamma 0.029 Theta -0.122 Vega 0.032 Open interest 10 Model this call Put · $145 In the money Snapshot session Aug 6, 2026 Last $8.80 Breakeven $136.20 Implied vol 52.3% Delta -0.809 ≈81% ITM Gamma 0.03 Theta -0.199 Vega 0.048 Open interest 1 Model this put
12	2	55%	0.095	$3.05		$9.00	-0.975	39.5%	16	4
Call · $150 Snapshot session Aug 5, 2026 Last $3.05 Breakeven $153.05 Implied vol 55% Delta 0.095 ≈10% ITM Gamma 0.018 Theta -0.137 Vega 0.033 Open interest 12 Model this call Put · $150 In the money Snapshot session Aug 5, 2026 Last $9.00 Breakeven $141.00 Implied vol 39.5% Delta -0.975 ≈98% ITM Gamma 0.011 Theta -0.027 Vega 0.008 Open interest 4 Model this put
1	1	73.8%	0.096	$1.50		$9.87	-0.913	71.7%	2	0
Call · $155 Snapshot session Jun 24, 2026 Last $1.50 Breakeven $156.50 Implied vol 73.8% Delta 0.096 ≈10% ITM Gamma 0.013 Theta -0.185 Vega 0.033 Open interest 1 Model this call Put · $155 In the money Snapshot session Aug 4, 2026 Last $9.87 Breakeven $145.13 Implied vol 71.7% Delta -0.913 ≈91% ITM Gamma 0.013 Theta -0.156 Vega 0.033 Open interest 0 Model this put
0	—	90.6%	0.094	—		—	-0.936	80.5%	—	0
Call · $160 Snapshot session Unknown Last — Breakeven — Implied vol 90.6% Delta 0.094 ≈9% ITM Gamma 0.011 Theta -0.223 Vega 0.034 Open interest 0 Model this call Put · $160 In the money Snapshot session Unknown Last — Breakeven — Implied vol 80.5% Delta -0.936 ≈94% ITM Gamma 0.009 Theta -0.139 Vega 0.019 Open interest 0 Model this put
0	—	106.8%	0.092	—		—	-0.942	91.9%	—	0
Call · $165 Snapshot session Unknown Last — Breakeven — Implied vol 106.8% Delta 0.092 ≈9% ITM Gamma 0.009 Theta -0.26 Vega 0.034 Open interest 0 Model this call Put · $165 In the money Snapshot session Unknown Last — Breakeven — Implied vol 91.9% Delta -0.942 ≈94% ITM Gamma 0.007 Theta -0.145 Vega 0.019 Open interest 0 Model this put
33	33	106.5%	0.061	$0.80		—	-0.948	102.9%	—	0
Call · $170 Snapshot session Aug 4, 2026 Last $0.80 Breakeven $170.80 Implied vol 106.5% Delta 0.061 ≈6% ITM Gamma 0.006 Theta -0.188 Vega 0.02 Open interest 33 Model this call Put · $170 In the money Snapshot session Unknown Last — Breakeven — Implied vol 102.9% Delta -0.948 ≈95% ITM Gamma 0.006 Theta -0.15 Vega 0.02 Open interest 0 Model this put
0	—	114.6%	0.052	—		—	-0.947	116.1%	—	0
Call · $175 Snapshot session Unknown Last — Breakeven — Implied vol 114.6% Delta 0.052 ≈5% ITM Gamma 0.005 Theta -0.178 Vega 0.02 Open interest 0 Model this call Put · $175 In the money Snapshot session Unknown Last — Breakeven — Implied vol 116.1% Delta -0.947 ≈95% ITM Gamma 0.005 Theta -0.172 Vega 0.02 Open interest 0 Model this put
1	1	124.9%	0.048	$0.80		$47.70	-0.951	126.4%	8	0
Call · $180 Snapshot session Feb 25, 2026 Last $0.80 Breakeven $180.80 Implied vol 124.9% Delta 0.048 ≈5% ITM Gamma 0.005 Theta -0.183 Vega 0.021 Open interest 1 Model this call Put · $180 In the money Snapshot session Feb 12, 2026 Last $47.70 Breakeven $132.30 Implied vol 126.4% Delta -0.951 ≈95% ITM Gamma 0.005 Theta -0.177 Vega 0.02 Open interest 0 Model this put
0	—	—	—	—		—	-0.953	136.5%	—	0
Call · $185 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $185 In the money Snapshot session Unknown Last — Breakeven — Implied vol 136.5% Delta -0.953 ≈95% ITM Gamma 0.004 Theta -0.183 Vega 0.02 Open interest 0 Model this put
1	1	—	—	$1.25		—	-0.96	143.9%	—	0
Call · $190 Snapshot session Dec 22, 2025 Last $1.25 Breakeven $191.25 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $190 In the money Snapshot session Unknown Last — Breakeven — Implied vol 143.9% Delta -0.96 ≈96% ITM Gamma 0.004 Theta -0.172 Vega 0.02 Open interest 0 Model this put
0	—	—	—	—		—	-0.958	155.9%	—	0
Call · $195 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $195 In the money Snapshot session Unknown Last — Breakeven — Implied vol 155.9% Delta -0.958 ≈96% ITM Gamma 0.003 Theta -0.193 Vega 0.021 Open interest 0 Model this put
0	—	—	—	—		—	-0.963	162.1%	—	0
Call · $200 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $200 In the money Snapshot session Unknown Last — Breakeven — Implied vol 162.1% Delta -0.963 ≈96% ITM Gamma 0.003 Theta -0.181 Vega 0.011 Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Dec 22, 2025–Aug 14, 2026; 21 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. 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.

Key facts CIK 868780 CUSIP 258278100 13F (30d) 302 filings 299 filers Visit website Investor relations