A10 Networks (ATEN) Options Chain

NYSE: ATENTelecommunicationsComputer Communications EquipmentUSD

29.63+1.67 (+5.97%)

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

Expiration date

Expiration: Dec 18, 2026
Days to expiration: 68
Share price: $29.63
Put/call ratio (OI): 0.05
Put/call ratio (volume): 0.14
ATM implied volatility: 54.8%
Expected move: ±$7.01
Open interest (C / P): 5.98K / 320

ATEN options summary

The ATEN options chain for the December 18, 2026 expiration lists 15 call and 9 put contracts, with 68 days until expiration. Open interest stands at 5,976 calls and 320 puts, a put/call ratio of 0.05, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $30.00 strike is 54.8%, which implies the market expects a move of about ±$7.01 (23.7%) in A10 Networks stock by expiration.

The most open interest sits at the $30.00 call (3.56K contracts) and the $25.00 put (270 contracts).

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

ATEN options chain · December 18, 2026

ATEN 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
0	2	—	20.92	0.00	0.00	2.50	—	—	—	—	—	—
0	—	—	16.10	0.00	0.00	5.00	—	—	—	—	—	—
0	—	—	24.22	0.00	0.00	7.50	—	—	—	—	—	—
2	1	241.9%	15.30	17.50	20.90	10.00	—	—	—	—	—	—
—	—	—	—	—	—	12.50	0.00	0.00	0.59	50.0%	—	0
6	2	158.5%	11.85	12.50	15.80	15.00	0.00	0.75	0.20	113.2%	—	1
13	1	—	19.00	7.10	9.70	17.50	0.15	2.45	0.58	135.4%	—	1
0	1	—	6.50	0.00	0.00	20.00	0.00	0.75	0.42	72.4%	6	17
19	3	—	8.42	2.50	5.10	22.50	0.10	0.75	1.65	57.3%	1	3
1,539	1	54.3%	4.40	5.20	5.80	25.00	0.60	0.95	1.02	51.6%	1	270
ATEN $29.63
3,564	36	52.3%	2.40	2.20	2.50	30.00	2.45	3.80	3.31	57.4%	1	14
198	10	59.9%	0.67	0.40	1.30	35.00	8.70	11.00	4.89	124.6%	4	5
365	10	59.5%	0.50	0.30	0.75	40.00	14.70	15.00	6.80	148.7%	1	9
37	18	70.3%	1.88	0.00	0.85	45.00	—	—	—	—	—	—
14	1	81.3%	1.27	0.00	0.80	50.00	—	—	—	—	—	—
219	16	90.4%	0.05	0.00	0.75	55.00	—	—	—	—	—	—

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 ATEN put/call ratio?

For the December 18, 2026 expiration, the ATEN put/call ratio based on open interest is 0.05 (320 puts vs 5,976 calls), and 0.14 based on today's volume. A ratio above 1 means more puts than calls.

What is ATEN's implied volatility?

At-the-money implied volatility for ATEN options expiring December 18, 2026 is about 54.8%, an annualized estimate of how much the market expects A10 Networks stock to move.

How many ATEN option expiration dates are there?

ATEN has 5 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.