argenx (ARGX) Options Chain

NASDAQ: ARGXHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD

825.03+6.40 (+0.78%)

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

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 7
Share price: $825.03
Put/call ratio (OI): 0.14
Put/call ratio (volume): 2.07
ATM implied volatility: 39.2%
Expected move: ±$44.75
Open interest (C / P): 1.34K / 193

ARGX options summary

The ARGX options chain for the October 16, 2026 expiration lists 33 call and 29 put contracts, with 7 days until expiration. Open interest stands at 1,339 calls and 193 puts, a put/call ratio of 0.14, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $830.00 strike is 39.2%, which implies the market expects a move of about ±$44.75 (5.4%) in argenx stock by expiration.

The most open interest sits at the $920.00 call (268 contracts) and the $830.00 put (75 contracts).

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

ARGX options chain · October 16, 2026

ARGX 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
—	—	—	—	—	—	600.00	0.00	4.30	0.13	132.4%	15	18
—	—	—	—	—	—	620.00	0.00	0.05	0.20	68.8%	1	2
—	—	—	—	—	—	820.00	8.30	16.00	22.00	40.5%	3	4
ARGX $825.03
—	—	—	—	—	—	830.00	13.80	20.50	1.70	39.2%	2	75
6	8	34.0%	8.30	4.40	9.30	840.00	19.00	26.00	3.50	38.1%	1	5
—	—	—	—	—	—	850.00	26.00	33.00	24.60	38.5%	—	14
—	—	—	—	—	—	860.00	33.50	42.90	3.90	45.0%	1	1
187	1	46.6%	5.00	1.05	6.30	870.00	43.10	50.10	46.90	43.0%	1	5
—	—	—	—	—	—	880.00	52.40	59.80	66.95	47.5%	1	2
2	2	53.6%	1.95	0.00	5.10	890.00	62.10	69.40	67.60	51.2%	12	12
176	15	57.6%	1.25	0.00	4.80	900.00	72.00	79.00	85.00	54.5%	117	28
18	2	51.0%	3.53	0.00	4.60	910.00	81.60	88.50	97.13	57.1%	2	1
268	4	54.6%	0.50	0.00	4.40	920.00	91.50	98.40	127.65	61.0%	1	9
0	1	12.5%	91.01	0.00	0.00	930.00	101.80	109.00	105.35	68.2%	6	4
0	—	25.0%	65.42	0.00	0.00	940.00	111.80	118.80	109.90	71.6%	1	12
101	4	66.0%	0.05	0.00	4.30	950.00	120.80	130.00	48.00	81.4%	4	0
6	4	69.8%	11.00	0.00	4.30	960.00	131.40	138.80	28.50	79.8%	3	0
64	2	73.4%	0.32	0.00	4.30	970.00	140.80	150.00	32.50	55.4%	1	1
13	5	77.0%	6.47	0.00	4.30	980.00	151.40	158.90	60.30	52.0%	1	0
1	1	80.5%	28.05	0.00	4.30	990.00	160.80	170.00	31.26	61.2%	1	0
112	3	83.9%	0.20	0.00	4.30	1,000.00	170.80	180.00	61.32	64.1%	1	0
8	1	87.3%	31.40	0.00	4.30	1,010.00	181.40	188.90	190.10	59.9%	8	0
52	11	90.6%	0.50	0.00	4.30	1,020.00	190.80	200.00	33.30	69.6%	4	0
12	1	64.5%	0.49	0.00	0.35	1,030.00	201.40	208.90	210.10	64.8%	8	0
10	2	97.1%	0.30	0.00	4.30	1,040.00	210.80	220.00	44.00	75.0%	2	0
47	4	63.5%	0.20	0.00	0.15	1,050.00	220.80	230.00	51.00	77.6%	—	0
2	2	103.3%	0.20	0.00	4.30	1,060.00	—	—	—	—	—	—
57	2	106.3%	0.14	0.00	4.30	1,070.00	240.80	250.00	58.30	82.8%	—	0
157	2	109.3%	0.20	0.00	4.30	1,080.00	250.80	260.00	69.00	85.3%	—	0
15	6	112.3%	37.00	0.00	4.30	1,090.00	260.80	270.00	64.20	87.8%	—	0
12	1	74.2%	0.20	0.00	0.15	1,100.00	—	—	—	—	—	—
5	2	118.1%	7.07	0.00	4.30	1,110.00	—	—	—	—	—	—
2	2	120.9%	25.00	0.00	4.30	1,120.00	—	—	—	—	—	—
1	—	123.7%	4.70	0.00	4.30	1,130.00	—	—	—	—	—	—
3	2	126.5%	4.94	0.00	4.30	1,140.00	—	—	—	—	—	—
2	3	131.9%	6.10	0.00	4.30	1,160.00	—	—	—	—	—	—
0	1	50.0%	3.00	0.00	0.00	1,220.00	—	—	—	—	—	—
0	1	50.0%	2.60	0.00	0.00	1,240.00	—	—	—	—	—	—
0	—	50.0%	1.15	0.00	0.00	1,420.00	—	—	—	—	—	—
0	—	50.0%	1.10	0.00	0.00	1,440.00	—	—	—	—	—	—

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 ARGX put/call ratio?

For the October 16, 2026 expiration, the ARGX put/call ratio based on open interest is 0.14 (193 puts vs 1,339 calls), and 2.07 based on today's volume. A ratio above 1 means more puts than calls.

What is ARGX's implied volatility?

At-the-money implied volatility for ARGX options expiring October 16, 2026 is about 39.2%, an annualized estimate of how much the market expects argenx stock to move.

How many ARGX option expiration dates are there?

ARGX has 8 listed expiration dates, from Oct 16, 2026 to Dec 17, 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.