LFUS · Littelfuse Inc /De

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$405.26 -9.91 (-2.39%) At close · Jul 24

Market Cap

$10.24B

25.29M

Options Chain

15-min delayed Underlying $405.26 · today Options Calculator

Positioning

Aug 21, 2026 · 26 days to expiry · 94 contracts

Put / call OI

12.56

Put-heavy positioning

Open interest

434

contracts outstanding

Volume

254

traded today

Max pain

$410.00

$4.74 above spot

ATM implied vol

64.8%

market's expected move

Open interest by strike · near the money

Calls Puts

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Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 26d Sep 18 54d Nov 20 117d Dec 18 145d Mar 19 236d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	107.1%	0.977	—		—	-0.02	104.4%	—	0
Call · $240 In the money Last — Breakeven — Implied vol 107.1% Delta 0.977 ≈98% ITM Gamma 0 Theta -0.134 Vega 0.083 Open interest 0 Model this call Put · $240 Last — Breakeven — Implied vol 104.4% Delta -0.02 ≈2% ITM Gamma 0 Theta -0.107 Vega 0.042 Open interest 0 Model this put
0	—	101.5%	0.973	—		—	-0.026	100.9%	—	0
Call · $250 In the money Last — Breakeven — Implied vol 101.5% Delta 0.973 ≈97% ITM Gamma 0.001 Theta -0.145 Vega 0.085 Open interest 0 Model this call Put · $250 Last — Breakeven — Implied vol 100.9% Delta -0.026 ≈3% ITM Gamma 0.001 Theta -0.125 Vega 0.085 Open interest 0 Model this put
0	—	97.3%	0.967	—		$1.90	-0.032	97%	2	2
Call · $260 In the money Last — Breakeven — Implied vol 97.3% Delta 0.967 ≈97% ITM Gamma 0.001 Theta -0.163 Vega 0.087 Open interest 0 Model this call Put · $260 Last $1.90 Breakeven $258.10 Implied vol 97% Delta -0.032 ≈3% ITM Gamma 0.001 Theta -0.144 Vega 0.087 Open interest 2 Model this put
0	—	89.3%	0.966	—		$2.39	-0.075	118.6%	2	2
Call · $270 In the money Last — Breakeven — Implied vol 89.3% Delta 0.966 ≈97% ITM Gamma 0.001 Theta -0.156 Vega 0.089 Open interest 0 Model this call Put · $270 Last $2.39 Breakeven $267.61 Implied vol 118.6% Delta -0.075 ≈7% ITM Gamma 0.001 Theta -0.345 Vega 0.153 Open interest 2 Model this put
0	—	90.5%	0.952	—		$2.99	-0.08	110.3%	2	2
Call · $280 In the money Last — Breakeven — Implied vol 90.5% Delta 0.952 ≈95% ITM Gamma 0.001 Theta -0.207 Vega 0.09 Open interest 0 Model this call Put · $280 Last $2.99 Breakeven $277.01 Implied vol 110.3% Delta -0.08 ≈8% ITM Gamma 0.001 Theta -0.339 Vega 0.156 Open interest 2 Model this put
0	—	88%	0.94	—		—	-0.076	96.3%	—	0
Call · $290 In the money Last — Breakeven — Implied vol 88% Delta 0.94 ≈94% ITM Gamma 0.001 Theta -0.237 Vega 0.159 Open interest 0 Model this call Put · $290 Last — Breakeven — Implied vol 96.3% Delta -0.076 ≈8% ITM Gamma 0.001 Theta -0.284 Vega 0.159 Open interest 0 Model this put
0	—	83.4%	0.928	—		$3.99	-0.084	89.6%	2	2
Call · $300 In the money Last — Breakeven — Implied vol 83.4% Delta 0.928 ≈93% ITM Gamma 0.002 Theta -0.255 Vega 0.162 Open interest 0 Model this call Put · $300 Last $3.99 Breakeven $296.01 Implied vol 89.6% Delta -0.084 ≈8% ITM Gamma 0.002 Theta -0.285 Vega 0.162 Open interest 2 Model this put
0	—	80.9%	0.911	—		$4.60	-0.093	82.9%	1	4
Call · $310 In the money Last — Breakeven — Implied vol 80.9% Delta 0.911 ≈91% ITM Gamma 0.002 Theta -0.289 Vega 0.165 Open interest 0 Model this call Put · $310 Last $4.60 Breakeven $305.40 Implied vol 82.9% Delta -0.093 ≈9% ITM Gamma 0.002 Theta -0.283 Vega 0.165 Open interest 4 Model this put
0	—	81%	0.888	—		$5.40	-0.12	83.9%	5	6
Call · $320 In the money Last — Breakeven — Implied vol 81% Delta 0.888 ≈89% ITM Gamma 0.002 Theta -0.344 Vega 0.251 Open interest 0 Model this call Put · $320 Last $5.40 Breakeven $314.60 Implied vol 83.9% Delta -0.12 ≈12% ITM Gamma 0.002 Theta -0.348 Vega 0.251 Open interest 6 Model this put
0	—	77.8%	0.863	—		$4.50	-0.135	77%	1	1
Call · $330 In the money Last — Breakeven — Implied vol 77.8% Delta 0.863 ≈86% ITM Gamma 0.003 Theta -0.374 Vega 0.255 Open interest 0 Model this call Put · $330 Last $4.50 Breakeven $325.50 Implied vol 77% Delta -0.135 ≈13% ITM Gamma 0.003 Theta -0.343 Vega 0.255 Open interest 1 Model this put
0	—	73%	0.841	—		—	-0.167	76%	—	0
Call · $340 In the money Last — Breakeven — Implied vol 73% Delta 0.841 ≈84% ITM Gamma 0.003 Theta -0.388 Vega 0.259 Open interest 0 Model this call Put · $340 Last — Breakeven — Implied vol 76% Delta -0.167 ≈17% ITM Gamma 0.003 Theta -0.39 Vega 0.26 Open interest 0 Model this put
0	—	73%	0.805	—		—	-0.193	72.2%	—	0
Call · $350 In the money Last — Breakeven — Implied vol 73% Delta 0.805 ≈80% ITM Gamma 0.004 Theta -0.444 Vega 0.264 Open interest 0 Model this call Put · $350 Last — Breakeven — Implied vol 72.2% Delta -0.193 ≈19% ITM Gamma 0.004 Theta -0.411 Vega 0.264 Open interest 0 Model this put
0	—	72.1%	0.762	—		—	-0.234	70.5%	—	0
Call · $360 In the money Last — Breakeven — Implied vol 72.1% Delta 0.762 ≈76% ITM Gamma 0.004 Theta -0.483 Vega 0.35 Open interest 0 Model this call Put · $360 Last — Breakeven — Implied vol 70.5% Delta -0.234 ≈23% ITM Gamma 0.004 Theta -0.442 Vega 0.35 Open interest 0 Model this put
0	—	69.7%	0.721	—		$13.50	-0.277	68.3%	3	0
Call · $370 In the money Last — Breakeven — Implied vol 69.7% Delta 0.721 ≈72% ITM Gamma 0.004 Theta -0.508 Vega 0.356 Open interest 0 Model this call Put · $370 Last $13.50 Breakeven $356.50 Implied vol 68.3% Delta -0.277 ≈28% ITM Gamma 0.005 Theta -0.468 Vega 0.356 Open interest 0 Model this put
1	1	68.7%	0.674	$44.36		$17.80	-0.328	69.6%	50	60
Call · $380 In the money Last $44.36 Breakeven $424.36 Implied vol 68.7% Delta 0.674 ≈67% ITM Gamma 0.005 Theta -0.54 Vega 0.412 Open interest 1 Model this call Put · $380 Last $17.80 Breakeven $362.20 Implied vol 69.6% Delta -0.328 ≈33% ITM Gamma 0.005 Theta -0.519 Vega 0.413 Open interest 60 Model this put
1	1	67.8%	0.621	$37.96		$26.73	-0.379	66.9%	1	2
Call · $390 In the money Last $37.96 Breakeven $427.96 Implied vol 67.8% Delta 0.621 ≈62% ITM Gamma 0.005 Theta -0.553 Vega 0.419 Open interest 1 Model this call Put · $390 Last $26.73 Breakeven $363.27 Implied vol 66.9% Delta -0.379 ≈38% ITM Gamma 0.005 Theta -0.517 Vega 0.419 Open interest 2 Model this put
1	1	66.6%	0.566	$28.32		$24.63	-0.434	64.9%	167	318
Call · $400 In the money Last $28.32 Breakeven $428.32 Implied vol 66.6% Delta 0.566 ≈57% ITM Gamma 0.006 Theta -0.564 Vega 0.425 Open interest 1 Model this call Put · $400 Last $24.63 Breakeven $375.37 Implied vol 64.9% Delta -0.434 ≈43% ITM Gamma 0.006 Theta -0.521 Vega 0.425 Open interest 318 Model this put
Underlying $405.26
1	1	64.8%	0.51	$37.00		—	-0.49	64.9%	—	0
Call · $410 Last $37.00 Breakeven $447.00 Implied vol 64.8% Delta 0.51 ≈51% ITM Gamma 0.006 Theta -0.555 Vega 0.431 Open interest 1 Model this call Put · $410 In the money Last — Breakeven — Implied vol 64.9% Delta -0.49 ≈49% ITM Gamma 0.006 Theta -0.526 Vega 0.431 Open interest 0 Model this put
0	—	64%	0.454	—		$32.83	-0.547	64%	1	2
Call · $420 Last — Breakeven — Implied vol 64% Delta 0.454 ≈45% ITM Gamma 0.006 Theta -0.541 Vega 0.437 Open interest 0 Model this call Put · $420 In the money Last $32.83 Breakeven $387.17 Implied vol 64% Delta -0.547 ≈55% ITM Gamma 0.006 Theta -0.51 Vega 0.437 Open interest 2 Model this put
1	1	64.3%	0.399	$32.80		—	-0.604	63.7%	—	0
Call · $430 Last $32.80 Breakeven $462.80 Implied vol 64.3% Delta 0.399 ≈40% ITM Gamma 0.006 Theta -0.535 Vega 0.443 Open interest 1 Model this call Put · $430 In the money Last — Breakeven — Implied vol 63.7% Delta -0.604 ≈60% ITM Gamma 0.006 Theta -0.498 Vega 0.438 Open interest 0 Model this put
0	—	63.5%	0.348	—		—	-0.655	63%	—	0
Call · $440 Last — Breakeven — Implied vol 63.5% Delta 0.348 ≈35% ITM Gamma 0.005 Theta -0.499 Vega 0.392 Open interest 0 Model this call Put · $440 In the money Last — Breakeven — Implied vol 63% Delta -0.655 ≈66% ITM Gamma 0.005 Theta -0.462 Vega 0.392 Open interest 0 Model this put
12	2	62.9%	0.298	$10.40		—	-0.706	62.6%	—	0
Call · $450 Last $10.40 Breakeven $460.40 Implied vol 62.9% Delta 0.298 ≈30% ITM Gamma 0.005 Theta -0.463 Vega 0.398 Open interest 12 Model this call Put · $450 In the money Last — Breakeven — Implied vol 62.6% Delta -0.706 ≈71% ITM Gamma 0.005 Theta -0.427 Vega 0.396 Open interest 0 Model this put
0	—	63.6%	0.254	—		—	-0.759	60.9%	—	0
Call · $460 Last — Breakeven — Implied vol 63.6% Delta 0.254 ≈25% ITM Gamma 0.005 Theta -0.437 Vega 0.308 Open interest 0 Model this call Put · $460 In the money Last — Breakeven — Implied vol 60.9% Delta -0.759 ≈76% ITM Gamma 0.005 Theta -0.375 Vega 0.307 Open interest 0 Model this put
0	—	62.8%	0.215	—		—	-0.797	60.9%	—	0
Call · $470 Last — Breakeven — Implied vol 62.8% Delta 0.215 ≈22% ITM Gamma 0.004 Theta -0.388 Vega 0.312 Open interest 0 Model this call Put · $470 In the money Last — Breakeven — Implied vol 60.9% Delta -0.797 ≈80% ITM Gamma 0.004 Theta -0.333 Vega 0.309 Open interest 0 Model this put
4	1	63%	0.18	$8.90		—	-0.83	61.7%	—	0
Call · $480 Last $8.90 Breakeven $488.90 Implied vol 63% Delta 0.18 ≈18% ITM Gamma 0.004 Theta -0.35 Vega 0.315 Open interest 4 Model this call Put · $480 In the money Last — Breakeven — Implied vol 61.7% Delta -0.83 ≈83% ITM Gamma 0.004 Theta -0.301 Vega 0.309 Open interest 0 Model this put
7	4	58%	0.127	$7.00		$52.20	-0.858	62.7%	1	1
Call · $490 Last $7.00 Breakeven $497.00 Implied vol 58% Delta 0.127 ≈13% ITM Gamma 0.003 Theta -0.255 Vega 0.213 Open interest 7 Model this call Put · $490 In the money Last $52.20 Breakeven $437.80 Implied vol 62.7% Delta -0.858 ≈86% ITM Gamma 0.003 Theta -0.271 Vega 0.21 Open interest 1 Model this put
0	—	64.3%	0.13	—		—	-0.889	61.2%	—	0
Call · $500 Last — Breakeven — Implied vol 64.3% Delta 0.13 ≈13% ITM Gamma 0.003 Theta -0.286 Vega 0.215 Open interest 0 Model this call Put · $500 In the money Last — Breakeven — Implied vol 61.2% Delta -0.889 ≈89% ITM Gamma 0.003 Theta -0.216 Vega 0.21 Open interest 0 Model this put
0	—	72.1%	0.138	—		—	-0.906	62.6%	—	0
Call · $510 Last — Breakeven — Implied vol 72.1% Delta 0.138 ≈14% ITM Gamma 0.003 Theta -0.335 Vega 0.217 Open interest 0 Model this call Put · $510 In the money Last — Breakeven — Implied vol 62.6% Delta -0.906 ≈91% ITM Gamma 0.003 Theta -0.194 Vega 0.207 Open interest 0 Model this put
1	1	75.7%	0.131	$4.52		—	-0.929	62.3%	—	0
Call · $520 Last $4.52 Breakeven $524.52 Implied vol 75.7% Delta 0.131 ≈13% ITM Gamma 0.003 Theta -0.338 Vega 0.219 Open interest 1 Model this call Put · $520 In the money Last — Breakeven — Implied vol 62.3% Delta -0.929 ≈93% ITM Gamma 0.002 Theta -0.155 Vega 0.122 Open interest 0 Model this put
0	—	74.6%	0.107	—		—	-0.942	62.4%	—	0
Call · $530 Last — Breakeven — Implied vol 74.6% Delta 0.107 ≈11% ITM Gamma 0.002 Theta -0.288 Vega 0.221 Open interest 0 Model this call Put · $530 In the money Last — Breakeven — Implied vol 62.4% Delta -0.942 ≈94% ITM Gamma 0.002 Theta -0.126 Vega 0.12 Open interest 0 Model this put
0	—	77.9%	0.102	—		—	-0.954	63.2%	—	0
Call · $540 Last — Breakeven — Implied vol 77.9% Delta 0.102 ≈10% ITM Gamma 0.002 Theta -0.29 Vega 0.223 Open interest 0 Model this call Put · $540 In the money Last — Breakeven — Implied vol 63.2% Delta -0.954 ≈95% ITM Gamma 0.002 Theta -0.106 Vega 0.115 Open interest 0 Model this put
0	—	77.4%	0.082	—		—	-0.965	63.7%	—	0
Call · $550 Last — Breakeven — Implied vol 77.4% Delta 0.082 ≈8% ITM Gamma 0.002 Theta -0.249 Vega 0.13 Open interest 0 Model this call Put · $550 In the money Last — Breakeven — Implied vol 63.7% Delta -0.965 ≈97% ITM Gamma 0.001 Theta -0.082 Vega 0.106 Open interest 0 Model this put
0	—	90.7%	0.114	—		—	-0.963	67.9%	—	0
Call · $560 Last — Breakeven — Implied vol 90.7% Delta 0.114 ≈11% ITM Gamma 0.002 Theta -0.365 Vega 0.226 Open interest 0 Model this call Put · $560 In the money Last — Breakeven — Implied vol 67.9% Delta -0.963 ≈96% ITM Gamma 0.001 Theta -0.093 Vega 0.108 Open interest 0 Model this put
0	—	71.6%	0.044	—		—	-0.975	66.6%	—	0
Call · $570 Last — Breakeven — Implied vol 71.6% Delta 0.044 ≈4% ITM Gamma 0.001 Theta -0.141 Vega 0.133 Open interest 0 Model this call Put · $570 In the money Last — Breakeven — Implied vol 66.6% Delta -0.975 ≈98% ITM Gamma 0.001 Theta -0.064 Vega 0.053 Open interest 0 Model this put
0	—	72.3%	0.037	—		—	-0.984	65.4%	—	0
Call · $580 Last — Breakeven — Implied vol 72.3% Delta 0.037 ≈4% ITM Gamma 0.001 Theta -0.123 Vega 0.067 Open interest 0 Model this call Put · $580 In the money Last — Breakeven — Implied vol 65.4% Delta -0.984 ≈98% ITM Gamma 0.001 Theta -0.036 Vega 0.048 Open interest 0 Model this put
0	—	71.1%	0.03	—		—	—	—	—	0
Call · $590 Last — Breakeven — Implied vol 71.1% Delta 0.03 ≈3% ITM Gamma 0.001 Theta -0.1 Vega 0.068 Open interest 0 Model this call Put · $590 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1	1	73.7%	0.029	$9.00		—	-0.996	65.7%	—	0
Call · $600 Last $9.00 Breakeven $609.00 Implied vol 73.7% Delta 0.029 ≈3% ITM Gamma 0.001 Theta -0.101 Vega 0.069 Open interest 1 Model this call Put · $600 In the money Last — Breakeven — Implied vol 65.7% Delta -0.996 ≈100% ITM Gamma 0 Theta -0.006 Vega 0.014 Open interest 0 Model this put
1	1	79%	0.033	$7.90		—	-0.986	73.3%	—	0
Call · $610 Last $7.90 Breakeven $617.90 Implied vol 79% Delta 0.033 ≈3% ITM Gamma 0.001 Theta -0.121 Vega 0.069 Open interest 1 Model this call Put · $610 In the money Last — Breakeven — Implied vol 73.3% Delta -0.986 ≈99% ITM Gamma 0.001 Theta -0.037 Vega 0.048 Open interest 0 Model this put
0	—	78.6%	0.027	—		—	—	—	—	0
Call · $620 Last — Breakeven — Implied vol 78.6% Delta 0.027 ≈3% ITM Gamma 0.001 Theta -0.102 Vega 0.07 Open interest 0 Model this call Put · $620 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	80.3%	0.025	—		—	-0.996	72.6%	—	0
Call · $630 Last — Breakeven — Implied vol 80.3% Delta 0.025 ≈3% ITM Gamma 0.001 Theta -0.098 Vega 0.07 Open interest 0 Model this call Put · $630 In the money Last — Breakeven — Implied vol 72.6% Delta -0.996 ≈100% ITM Gamma 0 Theta -0.006 Vega 0.014 Open interest 0 Model this put
0	—	83.4%	0.026	—		—	-0.996	74.9%	—	0
Call · $640 Last — Breakeven — Implied vol 83.4% Delta 0.026 ≈3% ITM Gamma 0.001 Theta -0.104 Vega 0.071 Open interest 0 Model this call Put · $640 In the money Last — Breakeven — Implied vol 74.9% Delta -0.996 ≈100% ITM Gamma 0 Theta -0.006 Vega 0.014 Open interest 0 Model this put
0	—	88.5%	0.03	—		—	-0.996	77.1%	—	0
Call · $650 Last — Breakeven — Implied vol 88.5% Delta 0.03 ≈3% ITM Gamma 0.001 Theta -0.124 Vega 0.071 Open interest 0 Model this call Put · $650 In the money Last — Breakeven — Implied vol 77.1% Delta -0.996 ≈100% ITM Gamma 0 Theta -0.006 Vega 0.014 Open interest 0 Model this put
0	—	88.7%	0.026	—		—	-0.99	84.2%	—	0
Call · $660 Last — Breakeven — Implied vol 88.7% Delta 0.026 ≈3% ITM Gamma 0.001 Theta -0.11 Vega 0.072 Open interest 0 Model this call Put · $660 In the money Last — Breakeven — Implied vol 84.2% Delta -0.99 ≈99% ITM Gamma 0.001 Theta -0.034 Vega 0.037 Open interest 0 Model this put
0	—	105.1%	0.048	—		—	-0.996	81.4%	—	0
Call · $670 Last — Breakeven — Implied vol 105.1% Delta 0.048 ≈5% ITM Gamma 0.001 Theta -0.218 Vega 0.143 Open interest 0 Model this call Put · $670 In the money Last — Breakeven — Implied vol 81.4% Delta -0.996 ≈100% ITM Gamma 0 Theta -0.006 Vega 0.014 Open interest 0 Model this put
1	1	106.2%	0.043	$2.90		—	-0.996	83.5%	—	0
Call · $680 Last $2.90 Breakeven $682.90 Implied vol 106.2% Delta 0.043 ≈4% ITM Gamma 0.001 Theta -0.206 Vega 0.144 Open interest 1 Model this call Put · $680 In the money Last — Breakeven — Implied vol 83.5% Delta -0.996 ≈100% ITM Gamma 0 Theta -0.006 Vega 0.014 Open interest 0 Model this put
0	—	95.4%	0.024	—		—	-0.988	92.4%	—	0
Call · $690 Last — Breakeven — Implied vol 95.4% Delta 0.024 ≈2% ITM Gamma 0.001 Theta -0.113 Vega 0.073 Open interest 0 Model this call Put · $690 In the money Last — Breakeven — Implied vol 92.4% Delta -0.988 ≈99% ITM Gamma 0.001 Theta -0.041 Vega 0.039 Open interest 0 Model this put
0	—	96.2%	0.022	—		—	-0.996	87.6%	—	0
Call · $700 Last — Breakeven — Implied vol 96.2% Delta 0.022 ≈2% ITM Gamma 0 Theta -0.104 Vega 0.074 Open interest 0 Model this call Put · $700 In the money Last — Breakeven — Implied vol 87.6% Delta -0.996 ≈100% ITM Gamma 0 Theta -0.006 Vega 0.014 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. The 25 strikes around the money are shown by default — switch to "All 47" for the wings. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 889331 CUSIP 537008104 13F (30d) 115 filings 115 filers Visit website Investor relations