Hudson Technologies (HDSN) Options Chain

NASDAQ: HDSNConsumer DiscretionaryIndustrial SpecialtiesUSD

5.16-0.015 (-0.29%)

Market open · Delayed 15 min · as of Oct 9, 10:54 AM ET

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 7
Share price: $5.15
Put/call ratio (OI): 1.68
Put/call ratio (volume): 3.50
ATM implied volatility: 63.7%
Expected move: ±$0.4541
Open interest (C / P): 75 / 126

HDSN options summary

The HDSN options chain for the October 16, 2026 expiration lists 3 call and 2 put contracts, with 7 days until expiration. Open interest stands at 75 calls and 126 puts, a put/call ratio of 1.68, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $5.00 strike is 63.7%, which implies the market expects a move of about ±$0.4541 (8.8%) in Hudson Technologies stock by expiration.

The most open interest sits at the $6.00 call (48 contracts) and the $5.00 put (114 contracts).

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

HDSN options chain · October 16, 2026

HDSN 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
16	1	115.6%	1.23	1.10	1.25	4.00	—	—	—	—	—	—
11	1	72.7%	0.42	0.15	0.30	5.00	0.05	0.10	0.08	54.7%	10	114
HDSN $5.15
48	2	76.6%	0.03	0.00	0.05	6.00	0.50	1.20	0.85	211.7%	4	12

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 HDSN put/call ratio?

For the October 16, 2026 expiration, the HDSN put/call ratio based on open interest is 1.68 (126 puts vs 75 calls), and 3.50 based on today's volume. A ratio above 1 means more puts than calls.

What is HDSN's implied volatility?

At-the-money implied volatility for HDSN options expiring October 16, 2026 is about 63.7%, an annualized estimate of how much the market expects Hudson Technologies stock to move.

How many HDSN option expiration dates are there?

HDSN has 4 listed expiration dates, from Oct 16, 2026 to May 21, 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.