Aduro Clean Technologies (ADUR) Options Chain

NASDAQ: ADURIndustrialsMajor ChemicalsUSD

11.11-0.07 (-0.63%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Dec 18, 2026
Days to expiration: 68
Share price: $11.11
Put/call ratio (OI): 0.72
Put/call ratio (volume): 0.15
ATM implied volatility: 90.9%
Expected move: ±$4.36
Open interest (C / P): 2.23K / 1.61K

ADUR options summary

The ADUR options chain for the December 18, 2026 expiration lists 12 call and 10 put contracts, with 68 days until expiration. Open interest stands at 2,228 calls and 1,612 puts, a put/call ratio of 0.72, which is fairly balanced between calls and puts. At-the-money implied volatility near the $10.00 strike is 90.9%, which implies the market expects a move of about ±$4.36 (39.2%) in Aduro Clean Technologies stock by expiration.

The most open interest sits at the $20.00 call (540 contracts) and the $10.00 put (622 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

ADUR options chain · December 18, 2026

ADUR calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
0	5	—	14.00	0.00	0.00	2.50	0.00	1.20	0.10	357.4%	1	49
156	110	165.6%	6.00	5.70	7.20	5.00	0.00	0.00	0.38	50.0%	3	0
21	2	469.5%	8.00	7.60	9.00	7.50	0.00	1.20	0.30	120.1%	1	354
145	1	100.8%	3.50	2.00	2.85	10.00	0.65	1.30	1.08	81.0%	6	622
ADUR $11.11
335	11	84.5%	1.00	0.75	1.45	12.50	1.95	2.50	2.53	70.4%	2	355
262	50	80.4%	0.50	0.30	0.65	15.00	3.80	4.80	4.30	76.0%	5	187
459	16	94.5%	0.48	0.00	0.75	17.50	5.90	7.30	6.70	80.1%	7	18
540	20	111.3%	0.26	0.00	0.75	20.00	8.20	10.00	7.22	95.7%	1	27
187	50	125.2%	0.10	0.00	0.75	22.50	0.00	0.00	8.08	—	10	0
62	1	137.1%	0.24	0.00	0.75	25.00	0.00	0.00	10.00	—	10	0
60	30	156.8%	0.15	0.00	0.75	30.00	—	—	—	—	—	—
1	1	172.8%	0.05	0.00	0.75	35.00	—	—	—	—	—	—

In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.

Frequently asked questions

What is the ADUR put/call ratio?

For the December 18, 2026 expiration, the ADUR put/call ratio based on open interest is 0.72 (1,612 puts vs 2,228 calls), and 0.15 based on today's volume. A ratio above 1 means more puts than calls.

What is ADUR's implied volatility?

At-the-money implied volatility for ADUR options expiring December 18, 2026 is about 90.9%, an annualized estimate of how much the market expects Aduro Clean Technologies stock to move.

How many ADUR option expiration dates are there?

ADUR has 8 listed expiration dates, from Oct 16, 2026 to Dec 17, 2027.

What does "in the money" mean?

A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.