Enphase Energy (ENPH) Options Chain

NASDAQ: ENPHTechnologySolarUSD

32.81-0.10 (-0.30%)

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

Expiration date

Expiration: May 21, 2027
Days to expiration: 223
Share price: $32.81
Put/call ratio (OI): 1.00
Put/call ratio (volume): 4.64
ATM implied volatility: 69.5%
Expected move: ±$17.83
Open interest (C / P): 2.21K / 2.23K

ENPH options summary

The ENPH options chain for the May 21, 2027 expiration lists 8 call and 10 put contracts, with 223 days until expiration. Open interest stands at 2,215 calls and 2,225 puts, a put/call ratio of 1.00, which is fairly balanced between calls and puts. At-the-money implied volatility near the $35.00 strike is 69.5%, which implies the market expects a move of about ±$17.83 (54.3%) in Enphase Energy stock by expiration.

The most open interest sits at the $22.50 call (1.71K contracts) and the $30.00 put (954 contracts).

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

ENPH options chain · May 21, 2027

ENPH 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
—	—	—	—	—	—	17.50	0.47	1.03	0.84	68.6%	1	11
—	—	—	—	—	—	20.00	0.95	1.35	1.34	65.6%	3	11
1,714	—	75.5%	12.12	11.95	13.65	22.50	1.48	2.30	2.39	66.3%	3	24
17	3	77.4%	11.49	10.50	12.40	25.00	2.60	2.92	2.81	65.9%	225	823
20	10	71.8%	8.55	8.25	8.65	30.00	4.45	5.30	5.20	63.6%	87	954
ENPH $32.81
84	3	73.9%	6.55	6.00	7.35	35.00	7.30	8.65	7.86	65.1%	2	126
21	13	71.3%	4.75	4.60	5.20	40.00	10.35	11.80	11.51	61.4%	1	237
11	6	73.8%	3.67	3.50	4.50	45.00	14.85	16.50	15.05	68.6%	1	30
161	4	74.0%	2.92	2.71	3.55	50.00	19.05	19.85	19.42	64.4%	2	4
187	31	72.6%	2.85	1.92	2.75	55.00	23.35	24.15	24.67	63.0%	—	5

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 ENPH put/call ratio?

For the May 21, 2027 expiration, the ENPH put/call ratio based on open interest is 1.00 (2,225 puts vs 2,215 calls), and 4.64 based on today's volume. A ratio above 1 means more puts than calls.

What is ENPH's implied volatility?

At-the-money implied volatility for ENPH options expiring May 21, 2027 is about 69.5%, an annualized estimate of how much the market expects Enphase Energy stock to move.

How many ENPH option expiration dates are there?

ENPH has 14 listed expiration dates, from Oct 16, 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.