Boston Scientific (BSX) Options Chain

NYSE: BSXHealth CareMedical/Dental InstrumentsUSD

42.73+0.69 (+1.64%)

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

After hours: 42.70 -0.07%

Expiration date

Expiration: Oct 9, 2026
Days to expiration: 0
Share price: $42.73
Put/call ratio (OI): 0.70
Put/call ratio (volume): 2.33
ATM implied volatility: 32.0%
Expected move: ±$0.7164
Open interest (C / P): 6.00K / 4.17K

BSX options summary

The BSX options chain for the October 9, 2026 expiration lists 32 call and 24 put contracts, expiring today. Open interest stands at 5,997 calls and 4,173 puts, a put/call ratio of 0.70, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $42.50 strike is 32.0%, which implies the market expects a move of about ±$0.7164 (1.7%) in Boston Scientific stock by expiration.

The most open interest sits at the $46.50 call (839 contracts) and the $43.50 put (908 contracts).

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

BSX options chain · October 9, 2026

BSX 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
—	—	—	—	—	—	37.00	0.00	2.15	0.01	378.9%	10	7
—	—	—	—	—	—	38.00	0.00	0.20	0.08	152.3%	3	8
—	—	—	—	—	—	38.50	0.00	0.55	0.05	183.6%	—	5
4	1	144.5%	3.34	3.00	3.90	39.00	0.00	0.05	0.02	93.8%	10	75
3	1	129.7%	2.80	2.50	3.40	39.50	0.00	2.15	0.10	273.4%	12	40
52	6	114.5%	1.65	2.10	2.90	40.00	0.00	0.25	0.02	104.7%	4	263
2	4	99.2%	2.63	1.35	2.40	40.50	0.00	0.20	0.04	84.4%	241	311
87	80	83.6%	1.30	1.30	1.90	41.00	0.00	0.15	0.03	64.5%	35	350
61	54	67.4%	1.05	0.95	1.40	41.50	0.00	0.30	0.03	64.1%	34	189
147	90	50.0%	0.47	0.35	0.90	42.00	0.00	0.05	0.03	30.9%	135	779
199	196	30.3%	0.23	0.10	0.40	42.50	0.00	0.20	0.16	33.8%	248	716
BSX $42.73
285	74	16.4%	0.01	0.00	0.05	43.00	0.15	0.40	0.40	26.9%	371	461
255	78	31.3%	0.04	0.00	0.05	43.50	0.60	1.65	1.20	74.6%	839	908
681	26	54.9%	0.06	0.00	0.20	44.00	1.10	1.70	1.46	60.2%	56	53
448	24	56.3%	0.02	0.00	0.05	44.50	1.60	2.55	2.58	102.7%	1	0
473	11	75.0%	0.05	0.00	0.15	45.00	2.10	2.90	2.95	105.9%	43	0
52	12	78.9%	0.08	0.00	0.10	45.50	2.60	3.50	3.30	128.5%	1	0
552	38	78.1%	0.06	0.00	0.05	46.00	3.10	4.00	3.73	142.2%	1	1
839	30	168.0%	0.05	0.00	0.70	46.50	3.60	4.60	4.65	164.4%	1	2
194	2	287.3%	0.12	0.00	2.15	47.00	4.10	5.00	5.04	168.0%	1	0
413	15	104.7%	0.11	0.00	0.05	47.50	4.60	5.60	5.47	190.2%	2	2
105	2	210.9%	0.02	0.00	0.75	48.00	5.10	6.50	6.40	237.7%	3	3
15	1	332.2%	0.10	0.00	2.15	48.50	—	—	—	—	—	—
133	2	129.7%	0.03	0.00	0.05	49.00	6.10	7.50	6.77	263.1%	4	0
75	71	246.5%	0.25	0.00	0.75	49.50	—	—	—	—	—	—
228	9	145.3%	0.05	0.00	0.05	50.00	7.00	8.50	7.05	278.1%	5	0
77	6	160.9%	0.05	0.00	0.05	51.00	—	—	—	—	—	—
112	2	175.0%	0.01	0.00	0.05	52.00	—	—	—	—	—	—
23	3	447.5%	0.05	0.00	2.15	53.00	—	—	—	—	—	—
33	1	470.3%	0.37	0.00	2.15	54.00	—	—	—	—	—	—
218	44	215.6%	0.25	0.00	0.05	55.00	—	—	—	—	—	—
218	—	229.7%	0.17	0.00	0.05	56.00	—	—	—	—	—	—
5	1	533.8%	1.33	0.00	2.15	57.00	—	—	—	—	—	—
7	2	553.5%	0.71	0.00	2.15	58.00	—	—	—	—	—	—
1	—	572.7%	0.15	0.00	2.15	59.00	—	—	—	—	—	—

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 BSX put/call ratio?

For the October 9, 2026 expiration, the BSX put/call ratio based on open interest is 0.70 (4,173 puts vs 5,997 calls), and 2.33 based on today's volume. A ratio above 1 means more puts than calls.

What is BSX's implied volatility?

At-the-money implied volatility for BSX options expiring October 9, 2026 is about 32.0%, an annualized estimate of how much the market expects Boston Scientific stock to move.

How many BSX option expiration dates are there?

BSX has 16 listed expiration dates, from Oct 9, 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.