NL · Nl Industries Inc

Track NL — free Ask ALVIS about NL

$5.91 -0.04 (-0.67%) At close · Jul 29

Market Cap

$290.73M

48.86M

Options Chain

15-min delayed Underlying $5.91 · at close Jul 29, 2026 Options Calculator

Positioning

Aug 21, 2026 · 22 days to expiry · 10 contracts

Put / call OI

0.12

Call-heavy positioning

Open interest

347

contracts outstanding

Volume

113

traded today

Max pain

$5.00

$0.91 below spot

ATM implied vol

80.7%

market's expected move

Open interest by strike

Calls Puts

2.5

7.5

12.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 22d Sep 18 50d Nov 20 113d Feb 19 204d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	322.9%	0.929	—		—	—	—	—	0
Call · $2.5 In the money Last — Breakeven — Implied vol 322.9% Delta 0.929 ≈93% ITM Gamma 0.029 Theta -0.013 Vega 0.002 Open interest 0 Model this call Put · $2.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
231	57	68.2%	0.857	$1.05		$0.30	-0.203	93.2%	2	6
Call · $5 In the money Last $1.05 Breakeven $6.05 Implied vol 68.2% Delta 0.857 ≈86% ITM Gamma 0.238 Theta -0.004 Vega 0.004 Open interest 231 Model this call Put · $5 Last $0.30 Breakeven $4.70 Implied vol 93.2% Delta -0.203 ≈20% ITM Gamma 0.209 Theta -0.009 Vega 0.005 Open interest 6 Model this put
Underlying $5.91
46	1	197.4%	0.402	$0.05		$1.71	-0.692	141.9%	30	30
Call · $7.5 Last $0.05 Breakeven $7.55 Implied vol 197.4% Delta 0.402 ≈40% ITM Gamma 0.134 Theta -0.025 Vega 0.006 Open interest 46 Model this call Put · $7.5 In the money Last $1.71 Breakeven $5.79 Implied vol 141.9% Delta -0.692 ≈69% ITM Gamma 0.168 Theta -0.017 Vega 0.006 Open interest 30 Model this put
34	23	321.7%	0.395	$0.15		—	-0.76	215.1%	—	0
Call · $10 Last $0.15 Breakeven $10.15 Implied vol 321.7% Delta 0.395 ≈39% ITM Gamma 0.081 Theta -0.04 Vega 0.006 Open interest 34 Model this call Put · $10 In the money Last — Breakeven — Implied vol 215.1% Delta -0.76 ≈76% ITM Gamma 0.097 Theta -0.022 Vega 0.005 Open interest 0 Model this put
0	—	233.1%	0.156	—		—	-0.787	268.3%	—	0
Call · $12.5 Last — Breakeven — Implied vol 233.1% Delta 0.156 ≈16% ITM Gamma 0.069 Theta -0.018 Vega 0.004 Open interest 0 Model this call Put · $12.5 In the money Last — Breakeven — Implied vol 268.3% Delta -0.787 ≈79% ITM Gamma 0.073 Theta -0.026 Vega 0.004 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 72162 CUSIP 629156407 13F (30d) 14 filings 14 filers Visit website Investor relations