Eos Energy Enterprises (EOSE) Options Chain

NASDAQ: EOSEMiscellaneousIndustrial Machinery/ComponentsUSD

2.77-0.335 (-10.81%)

At close: Oct 8, 4:00 PM ET · Delayed 15 min

After hours: 2.81 +1.57%

Expiration date

Expiration: Oct 9, 2026
Days to expiration: 1
Share price: $2.77
Put/call ratio (OI): 0.21
Put/call ratio (volume): 1.85
ATM implied volatility: 118.8%
Expected move: ±$0.1719
Open interest (C / P): 37.18K / 7.94K

EOSE options summary

The EOSE options chain for the October 9, 2026 expiration lists 16 call and 13 put contracts, with 1 day until expiration. Open interest stands at 37,183 calls and 7,937 puts, a put/call ratio of 0.21, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $3.00 strike is 118.8%, which implies the market expects a move of about ±$0.1719 (6.2%) in Eos Energy Enterprises stock by expiration.

The most open interest sits at the $4.00 call (14.95K contracts) and the $3.00 put (3.92K contracts).

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

EOSE options chain · October 9, 2026

EOSE 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
117	5	1100.0%	2.27	2.15	2.39	0.50	—	—	—	—	—	—
55	4	1150.0%	1.86	1.63	2.05	1.00	—	—	—	—	—	—
336	5	50.0%	1.30	1.15	1.38	1.50	0.00	0.02	0.01	462.5%	1	4
53	6	465.6%	0.71	0.69	0.99	2.00	—	—	—	—	—	—
421	85	143.8%	0.24	0.20	0.38	2.50	0.00	0.01	0.01	87.5%	58	419
EOSE $2.77
5,478	1,421	100.0%	0.02	0.01	0.02	3.00	0.18	0.27	0.24	137.5%	1,003	3,922
9,229	213	175.0%	0.01	0.00	0.01	3.50	0.66	0.80	0.73	325.0%	2,100	2,923
14,948	40	250.0%	0.01	0.00	0.01	4.00	1.18	1.41	1.30	421.9%	154	588
3,819	10	312.5%	0.01	0.00	0.01	4.50	1.62	2.01	1.75	550.0%	2	29
1,139	3	362.5%	0.01	0.00	0.01	5.00	2.08	2.47	2.21	525.0%	17	8
480	2	700.0%	0.01	0.00	0.17	5.50	2.45	3.05	2.74	487.5%	16	30
333	1	581.3%	0.01	0.00	0.05	6.00	3.05	3.50	3.20	637.5%	3	7
31	6	500.0%	0.01	0.00	0.01	6.50	3.40	3.85	3.76	875.0%	8	0
722	51	525.0%	0.01	0.00	0.01	7.00	3.90	4.55	4.30	1250.0%	5	1
3	4	900.0%	0.01	0.00	0.17	7.50	4.65	5.05	4.75	965.6%	56	2
19	19	687.5%	0.02	0.00	0.03	8.00	4.95	5.55	5.28	687.5%	55	4

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 EOSE put/call ratio?

For the October 9, 2026 expiration, the EOSE put/call ratio based on open interest is 0.21 (7,937 puts vs 37,183 calls), and 1.85 based on today's volume. A ratio above 1 means more puts than calls.

What is EOSE's implied volatility?

At-the-money implied volatility for EOSE options expiring October 9, 2026 is about 118.8%, an annualized estimate of how much the market expects Eos Energy Enterprises stock to move.

How many EOSE option expiration dates are there?

EOSE has 19 listed expiration dates, from Oct 9, 2026 to Jan 19, 2029.

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.