BeOne Medicines (ONC) Options Chain

NASDAQ: ONCHealth CareBiotechnology: Pharmaceutical PreparationsUSD

348.54-15.48 (-4.25%)

Market open · Delayed 15 min · as of Oct 8, 3:29 PM ET

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 8
Share price: $347.90
Put/call ratio (OI): 0.59
Put/call ratio (volume): 2.71
ATM implied volatility: 45.8%
Expected move: ±$23.60
Open interest (C / P): 189 / 111

ONC options summary

The ONC options chain for the October 16, 2026 expiration lists 14 call and 11 put contracts, with 8 days until expiration. Open interest stands at 189 calls and 111 puts, a put/call ratio of 0.59, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $350.00 strike is 45.8%, which implies the market expects a move of about ±$23.60 (6.8%) in BeOne Medicines stock by expiration.

The most open interest sits at the $310.00 call (38 contracts) and the $400.00 put (39 contracts).

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

ONC options chain · October 16, 2026

ONC 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
—	—	—	—	—	—	300.00	0.00	0.65	0.10	51.0%	—	1
38	—	69.8%	55.02	36.30	40.60	310.00	0.00	3.50	2.55	61.0%	—	1
38	—	56.9%	45.57	27.00	30.70	320.00	0.00	3.70	2.05	63.3%	—	1
1	1	50.8%	25.45	18.80	22.00	330.00	1.35	3.50	3.48	47.1%	1	2
2	—	45.7%	18.54	11.10	14.30	340.00	3.80	6.50	4.48	46.2%	1	20
ONC $347.90
11	9	47.2%	4.20	6.20	9.30	350.00	8.20	10.80	6.20	44.4%	1	3
4	6	44.6%	3.00	3.00	5.00	360.00	13.50	16.70	5.02	42.6%	4	4
14	8	53.7%	5.80	0.00	4.10	370.00	21.50	24.80	25.00	45.1%	1	1
4	1	62.6%	6.30	0.00	3.60	380.00	30.50	34.00	35.47	50.2%	—	1
12	—	58.2%	4.00	0.00	3.40	390.00	—	—	—	—	—	—
31	1	67.1%	2.53	0.00	3.40	400.00	49.80	54.20	39.10	71.0%	38	39
2	—	75.6%	3.25	0.00	3.40	410.00	59.80	64.20	48.40	79.7%	38	38
2	2	83.6%	3.00	0.00	3.40	420.00	—	—	—	—	—	—
14	3	91.2%	0.47	0.00	3.40	430.00	—	—	—	—	—	—
16	—	112.3%	0.24	0.00	3.40	460.00	—	—	—	—	—	—

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 ONC put/call ratio?

For the October 16, 2026 expiration, the ONC put/call ratio based on open interest is 0.59 (111 puts vs 189 calls), and 2.71 based on today's volume. A ratio above 1 means more puts than calls.

What is ONC's implied volatility?

At-the-money implied volatility for ONC options expiring October 16, 2026 is about 45.8%, an annualized estimate of how much the market expects BeOne Medicines stock to move.

How many ONC option expiration dates are there?

ONC has 4 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.