PRLB · Proto Labs Inc

Track PRLB — free

$91.87 -0.45 (-0.49%) At close · Aug 14

Market Cap

$2.17B

23.92M

Options Chain

Underlying $91.87 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 6 days to expiry · 34 contracts · mixed snapshot sessions · Jul 9, 2026–Aug 14, 2026; 21 unknown

Put / call OI

—

dated and unknown snapshot sessions

Open interest

—

dated and unknown snapshot sessions

Volume

—

dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 6d Sep 18 34d Oct 16 62d Jan 15 153d Feb 19 188d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	376.9%	0.973	—		—	—	—	—	0
Call · $40 In the money Snapshot session Unknown Last — Breakeven — Implied vol 376.9% Delta 0.973 ≈97% ITM Gamma 0.001 Theta -0.23 Vega 0.008 Open interest 0 Model this call Put · $40 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	243%	0.992	—		—	—	—	—	0
Call · $45 In the money Snapshot session Unknown Last — Breakeven — Implied vol 243% Delta 0.992 ≈99% ITM Gamma 0.001 Theta -0.053 Vega 0.002 Open interest 0 Model this call Put · $45 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	263.4%	0.973	—		—	—	—	—	0
Call · $50 In the money Snapshot session Unknown Last — Breakeven — Implied vol 263.4% Delta 0.973 ≈97% ITM Gamma 0.002 Theta -0.161 Vega 0.009 Open interest 0 Model this call Put · $50 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	198.5%	0.982	—		—	-0.036	236.6%	—	0
Call · $55 In the money Snapshot session Unknown Last — Breakeven — Implied vol 198.5% Delta 0.982 ≈98% ITM Gamma 0.002 Theta -0.09 Vega 0.005 Open interest 0 Model this call Put · $55 Snapshot session Unknown Last — Breakeven — Implied vol 236.6% Delta -0.036 ≈4% ITM Gamma 0.003 Theta -0.18 Vega 0.009 Open interest 0 Model this put
0	—	176.7%	0.975	—		—	-0.053	220.9%	—	0
Call · $60 In the money Snapshot session Unknown Last — Breakeven — Implied vol 176.7% Delta 0.975 ≈97% ITM Gamma 0.003 Theta -0.105 Vega 0.01 Open interest 0 Model this call Put · $60 Snapshot session Unknown Last — Breakeven — Implied vol 220.9% Delta -0.053 ≈5% ITM Gamma 0.004 Theta -0.231 Vega 0.017 Open interest 0 Model this put
1	1	0.1%	1	$10.00		$0.10	-0.057	179.1%	1	5
Call · $65 In the money Snapshot session Jul 9, 2026 Last $10.00 Breakeven $75.00 Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.006 Vega 0 Open interest 1 Model this call Put · $65 Snapshot session Aug 11, 2026 Last $0.10 Breakeven $64.90 Implied vol 179.1% Delta -0.057 ≈6% ITM Gamma 0.005 Theta -0.196 Vega 0.018 Open interest 5 Model this put
0	—	142.7%	0.937	—		$1.10	-0.08	155.4%	1	7
Call · $70 In the money Snapshot session Unknown Last — Breakeven — Implied vol 142.7% Delta 0.937 ≈94% ITM Gamma 0.007 Theta -0.177 Vega 0.018 Open interest 0 Model this call Put · $70 Snapshot session Jul 31, 2026 Last $1.10 Breakeven $68.90 Implied vol 155.4% Delta -0.08 ≈8% ITM Gamma 0.008 Theta -0.219 Vega 0.018 Open interest 7 Model this put
3	1	—	—	$14.48		$4.80	-0.084	115.1%	1	2
Call · $75 In the money Snapshot session Aug 4, 2026 Last $14.48 Breakeven $89.48 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this call Put · $75 Snapshot session Jul 29, 2026 Last $4.80 Breakeven $70.20 Implied vol 115.1% Delta -0.084 ≈8% ITM Gamma 0.011 Theta -0.168 Vega 0.019 Open interest 2 Model this put
37	21	75.4%	0.918	$11.42		$0.68	-0.091	78.7%	1	1
Call · $80 In the money Snapshot session Aug 12, 2026 Last $11.42 Breakeven $91.42 Implied vol 75.4% Delta 0.918 ≈92% ITM Gamma 0.017 Theta -0.116 Vega 0.02 Open interest 37 Model this call Put · $80 Snapshot session Aug 6, 2026 Last $0.68 Breakeven $79.32 Implied vol 78.7% Delta -0.091 ≈9% ITM Gamma 0.017 Theta -0.122 Vega 0.02 Open interest 1 Model this put
33	2	63.7%	0.816	$6.10		$1.20	-0.124	49.5%	1	2
Call · $85 In the money Snapshot session Aug 14, 2026 Last $6.10 Breakeven $91.10 Implied vol 63.7% Delta 0.816 ≈82% ITM Gamma 0.035 Theta -0.169 Vega 0.03 Open interest 33 Model this call Put · $85 Snapshot session Aug 5, 2026 Last $1.20 Breakeven $83.80 Implied vol 49.5% Delta -0.124 ≈12% ITM Gamma 0.035 Theta -0.097 Vega 0.022 Open interest 2 Model this put
28	2	45.6%	0.609	$2.90		$2.20	-0.365	34.9%	1	2
Call · $90 In the money Snapshot session Aug 12, 2026 Last $2.90 Breakeven $92.90 Implied vol 45.6% Delta 0.609 ≈61% ITM Gamma 0.071 Theta -0.173 Vega 0.047 Open interest 28 Model this call Put · $90 Snapshot session Aug 11, 2026 Last $2.20 Breakeven $87.80 Implied vol 34.9% Delta -0.365 ≈36% ITM Gamma 0.091 Theta -0.123 Vega 0.047 Open interest 2 Model this put
Underlying $91.87
4	1	41.1%	0.239	$0.75		—	—	—	—	0
Call · $95 Snapshot session Aug 7, 2026 Last $0.75 Breakeven $95.75 Implied vol 41.1% Delta 0.239 ≈24% ITM Gamma 0.064 Theta -0.126 Vega 0.033 Open interest 4 Model this call Put · $95 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1	1	60.4%	0.133	$0.40		—	—	—	—	0
Call · $100 Snapshot session Jul 20, 2026 Last $0.40 Breakeven $100.40 Implied vol 60.4% Delta 0.133 ≈13% ITM Gamma 0.03 Theta -0.127 Vega 0.022 Open interest 1 Model this call Put · $100 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	101%	0.16	—		—	—	—	—	0
Call · $105 Snapshot session Unknown Last — Breakeven — Implied vol 101% Delta 0.16 ≈16% ITM Gamma 0.02 Theta -0.238 Vega 0.034 Open interest 0 Model this call Put · $105 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	120%	0.135	—		—	—	—	—	0
Call · $110 Snapshot session Unknown Last — Breakeven — Implied vol 120% Delta 0.135 ≈13% ITM Gamma 0.015 Theta -0.251 Vega 0.023 Open interest 0 Model this call Put · $110 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	115.4%	0.072	—		—	—	—	—	0
Call · $115 Snapshot session Unknown Last — Breakeven — Implied vol 115.4% Delta 0.072 ≈7% ITM Gamma 0.01 Theta -0.153 Vega 0.014 Open interest 0 Model this call Put · $115 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $120 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $120 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — 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 · Jul 9, 2026–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 1443669 CUSIP 743713109 13F (30d) 261 filings 259 filers Visit website Investor relations