Generac Holdlings (GNRC) Options Chain

NYSE: GNRCConsumer DiscretionaryMetal FabricationsUSD

224.94+0.54 (+0.24%)

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

Expiration date

Expiration: May 21, 2027
Days to expiration: 223
Share price: $224.94
Put/call ratio (OI): 1.06
Put/call ratio (volume): 0.86
ATM implied volatility: 54.1%
Expected move: ±$95.06
Open interest (C / P): 858 / 908

GNRC options summary

The GNRC options chain for the May 21, 2027 expiration lists 38 call and 32 put contracts, with 223 days until expiration. Open interest stands at 858 calls and 908 puts, a put/call ratio of 1.06, which is fairly balanced between calls and puts. At-the-money implied volatility near the $220.00 strike is 54.1%, which implies the market expects a move of about ±$95.06 (42.3%) in Generac Holdlings stock by expiration.

The most open interest sits at the $300.00 call (75 contracts) and the $160.00 put (305 contracts).

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

GNRC options chain · May 21, 2027

GNRC 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
—	—	—	—	—	—	100.00	0.00	0.80	1.35	50.0%	1	5
3	3	75.1%	111.20	121.90	126.00	105.00	0.00	1.20	1.85	50.4%	1	3
—	—	—	—	—	—	110.00	0.30	1.45	1.70	50.8%	1	4
—	—	—	—	—	—	115.00	0.40	1.75	1.75	55.1%	1	4
10	—	67.8%	82.05	108.40	111.30	120.00	0.30	3.50	1.85	53.1%	4	9
3	1	66.3%	86.23	104.00	106.80	125.00	0.70	2.80	3.00	55.0%	2	13
10	—	65.9%	74.05	99.70	102.90	130.00	2.00	3.40	3.90	51.5%	1	36
—	—	—	—	—	—	135.00	2.50	4.20	3.25	51.4%	1,019	68
1	—	—	77.12	59.10	62.20	140.00	2.60	5.00	6.96	50.2%	1	11
10	18	63.0%	53.09	87.20	90.50	145.00	3.90	5.90	7.10	51.1%	2	31
9	2	62.4%	81.80	83.30	86.60	150.00	4.80	6.50	5.72	50.4%	1	63
8	1	61.5%	65.00	79.40	82.70	155.00	5.80	8.20	10.20	51.2%	4	10
0	1	60.8%	47.70	75.70	78.80	160.00	7.00	9.90	9.50	51.8%	1	305
7	—	60.6%	43.00	72.10	75.50	165.00	8.00	10.40	14.20	50.3%	—	6
3	—	60.1%	45.00	68.60	72.00	170.00	10.00	12.30	11.20	51.4%	1	69
—	—	—	—	—	—	175.00	10.90	13.90	12.40	50.7%	1	35
7	1	59.3%	49.80	62.20	65.20	180.00	12.50	15.90	14.45	50.8%	1	10
5	1	58.5%	48.50	58.90	61.70	185.00	14.40	17.70	21.71	50.8%	2	4
45	3	58.6%	55.04	56.30	58.80	190.00	16.50	19.60	24.60	50.8%	10	21
4	2	58.5%	38.55	53.50	56.00	195.00	18.50	21.80	23.20	50.8%	1	3
39	1	58.4%	49.80	50.70	53.40	200.00	20.70	23.20	22.30	50.1%	6	132
42	1	58.1%	46.50	45.70	48.20	210.00	25.20	28.60	29.61	50.3%	1	6
35	28	58.1%	42.43	40.80	44.20	220.00	30.50	33.60	32.30	50.0%	1	31
GNRC $224.94
44	1	57.1%	37.65	36.40	39.00	230.00	35.80	39.20	41.20	52.0%	1	2
28	1	57.2%	29.60	32.60	35.50	240.00	41.50	45.10	48.20	51.5%	1	8
62	12	56.3%	30.80	28.50	31.50	250.00	62.90	66.60	65.90	70.2%	2	6
16	2	56.8%	26.90	25.60	28.90	260.00	54.50	58.10	61.16	50.7%	1	4
12	2	55.9%	24.40	22.90	24.90	270.00	78.40	81.30	49.80	71.6%	1	4
30	4	56.1%	12.00	19.90	23.10	280.00	85.70	89.70	53.50	72.3%	—	2
25	4	56.0%	15.68	17.80	20.70	290.00	—	—	—	—	—	—
75	12	55.2%	18.00	15.40	18.00	300.00	—	—	—	—	—	—
25	4	56.2%	12.33	14.00	17.10	310.00	—	—	—	—	—	—
64	50	55.8%	11.20	12.30	15.10	320.00	101.30	104.40	114.80	48.1%	—	1
56	51	55.7%	10.60	10.70	13.60	330.00	128.00	133.00	81.40	77.1%	—	1
2	1	56.1%	10.90	9.70	12.50	340.00	—	—	—	—	—	—
33	1,012	55.9%	10.40	8.10	11.60	350.00	—	—	—	—	—	—
47	1	55.0%	12.50	7.20	9.50	360.00	—	—	—	—	—	—
3	1	56.9%	6.81	6.70	10.00	370.00	146.20	149.40	162.50	47.3%	1	1
3	1	56.1%	6.06	4.80	8.00	390.00	—	—	—	—	—	—
38	1	56.4%	5.65	4.50	7.20	400.00	—	—	—	—	—	—
3	—	57.4%	33.60	4.30	6.90	410.00	—	—	—	—	—	—
1	2	55.9%	4.30	3.10	6.00	420.00	—	—	—	—	—	—
50	21	55.4%	4.90	2.80	5.00	430.00	—	—	—	—	—	—

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 GNRC put/call ratio?

For the May 21, 2027 expiration, the GNRC put/call ratio based on open interest is 1.06 (908 puts vs 858 calls), and 0.86 based on today's volume. A ratio above 1 means more puts than calls.

What is GNRC's implied volatility?

At-the-money implied volatility for GNRC options expiring May 21, 2027 is about 54.1%, an annualized estimate of how much the market expects Generac Holdlings stock to move.

How many GNRC option expiration dates are there?

GNRC 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.