Fastly (FSLY) Options Chain

NASDAQ: FSLYTechnologyComputer Software: Prepackaged SoftwareUSD

29.30+4.01 (+15.86%)

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

Expiration date

Expiration: Dec 18, 2026
Days to expiration: 69
Share price: $29.30
Put/call ratio (OI): 0.31
Put/call ratio (volume): 0.20
ATM implied volatility: 95.3%
Expected move: ±$12.14
Open interest (C / P): 8.21K / 2.52K

FSLY options summary

The FSLY options chain for the December 18, 2026 expiration lists 14 call and 13 put contracts, with 69 days until expiration. Open interest stands at 8,208 calls and 2,524 puts, a put/call ratio of 0.31, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $30.00 strike is 95.3%, which implies the market expects a move of about ±$12.14 (41.4%) in Fastly stock by expiration.

The most open interest sits at the $30.00 call (2.12K contracts) and the $17.50 put (543 contracts).

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

FSLY options chain · December 18, 2026

FSLY 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
3	15	—	15.90	19.40	22.00	2.50	—	—	—	—	—	—
5	—	224.6%	15.89	23.30	25.60	5.00	0.00	0.55	0.05	253.5%	1	7
3	1	192.0%	16.22	21.00	23.10	7.50	0.00	0.20	0.05	161.7%	1	172
55	11	116.0%	19.50	17.80	20.90	10.00	0.00	0.20	0.03	129.3%	1	137
14	1	134.4%	15.67	16.10	18.20	12.50	0.05	0.35	0.10	119.0%	11	105
223	1	96.1%	14.99	13.30	15.70	15.00	0.05	0.50	0.25	103.1%	1	322
216	2	111.7%	10.00	11.80	13.40	17.50	0.20	0.65	0.40	92.5%	79	543
358	48	104.1%	10.41	9.90	11.10	20.00	0.75	1.10	0.87	94.1%	19	213
633	8	93.4%	9.10	7.60	9.20	22.50	1.35	1.80	1.55	92.7%	126	480
846	53	98.2%	7.00	6.90	7.20	25.00	2.40	2.80	2.40	94.8%	56	370
FSLY $29.30
2,120	414	98.8%	4.71	4.40	5.00	30.00	4.60	5.50	5.00	91.8%	1	130
1,077	405	98.9%	3.09	2.85	3.30	35.00	17.20	18.50	12.10	283.6%	3	3
1,216	561	98.5%	2.00	1.75	2.20	40.00	0.00	0.00	17.76	—	7	0
1,439	13	99.2%	1.40	1.10	1.50	45.00	16.50	17.30	16.70	96.6%	6	42

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 FSLY put/call ratio?

For the December 18, 2026 expiration, the FSLY put/call ratio based on open interest is 0.31 (2,524 puts vs 8,208 calls), and 0.20 based on today's volume. A ratio above 1 means more puts than calls.

What is FSLY's implied volatility?

At-the-money implied volatility for FSLY options expiring December 18, 2026 is about 95.3%, an annualized estimate of how much the market expects Fastly stock to move.

How many FSLY option expiration dates are there?

FSLY has 13 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.