BSX option chain

Strikes around the forward, as they were quoted at the close

Data as of 9 November 2026 (end of day)

2026-11-13(4 days)ATM 46.30%±2.14skew +2.50

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
0	2	$4.90	$5.50	—	$39.00	—	—	—	—	—
0	3	$3.50	$5.00	—	$39.50	—	—	—	—	—
4	21	$3.40	$4.60	—	$40.00	—	—	—	—	—
0	43	$2.70	$4.10	—	$40.50	—	—	—	—	—
0	4	$2.25	$3.50	—	$41.00	—	—	—	—	—
1	281	$1.95	$3.10	—	$41.50	—	—	—	—	—
51	376	$1.85	$2.70	—	$42.00	49.58%	$0.15	$0.25	1,086	35
31	106	$1.80	$2.00	—	$42.50	—	—	—	—	—
108	99	$1.50	$1.65	—	$43.00	48.57%	$0.35	$0.50	323	30
18	241	$1.15	$1.30	—	$43.50	47.08%	$0.50	$0.65	56	4
124	235	$0.85	$1.00	—	$44.00	46.09%	$0.70	$0.85	119	317
520	157	$0.65	$0.75	46.68%	$44.50	—	$0.95	$1.15	107	0
936	284	$0.45	$0.55	46.16%	$45.00	—	$1.30	$1.40	181	82
246	142	$0.30	$0.40	46.06%	$45.50	—	$1.65	$1.80	3	0
152	378	$0.20	$0.25	45.04%	$46.00	—	$1.85	$2.25	57	0
—	—	—	—	—	$46.50	—	$2.20	$3.20	6	0
93	288	$0.05	$0.10	42.74%	$47.00	—	$2.60	$4.00	68	0
—	—	—	—	—	$47.50	—	$3.00	$4.50	3	0
—	—	—	—	—	$48.00	—	$3.50	$5.00	3	0
—	—	—	—	—	$48.50	—	$4.00	$5.80	5	0
—	—	—	—	—	$49.00	—	$4.60	$6.40	4	0

Forward $44.15. The 25-delta put carries +2.50 volatility points over the 25-delta call.

2026-11-20(11 days)ATM 43.07%±3.31skew +0.14

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
0	1	$5.10	$6.50	—	$38.00	—	—	—	—	—
—	—	—	—	—	$38.50	48.73%	$0.05	$0.10	198	10
0	5	$3.80	$5.20	—	$39.50	—	—	—	—	—
2	706	$3.70	$4.70	—	$40.00	46.42%	$0.15	$0.20	7,632	55
0	15	$3.00	$4.20	—	$40.50	—	—	—	—	—
0	26	$2.60	$3.80	—	$41.00	45.15%	$0.25	$0.35	174	5
0	8	$2.25	$3.40	—	$41.50	45.16%	$0.35	$0.45	337	20
20	1,609	$2.40	$2.95	—	$42.00	43.15%	$0.40	$0.55	632	16
0	143	$2.25	$2.40	—	$42.50	43.42%	$0.55	$0.70	179	5
3	152	$1.90	$2.10	—	$43.00	44.44%	$0.75	$0.90	234	453
0	225	$1.60	$1.80	—	$43.50	44.38%	$0.95	$1.10	73	0
32	109	$1.35	$1.50	—	$44.00	43.37%	$1.15	$1.30	267	226
4	9	$1.10	$1.25	43.01%	$44.50	—	$1.40	$1.55	567	3
143	11,368	$0.90	$1.05	43.33%	$45.00	—	$1.70	$1.85	8,328	57
23	6,139	$0.70	$0.80	41.82%	$45.50	—	$1.95	$2.15	2,317	1
82	2,489	$0.55	$0.65	41.90%	$46.00	—	$2.30	$2.50	267	0
78	503	$0.45	$0.55	43.01%	$46.50	—	$2.60	$3.00	1	0
74	552	$0.35	$0.45	43.35%	$47.00	—	$2.95	$4.10	8	0
14	196	$0.25	$0.35	42.79%	$47.50	—	—	—	—	—
—	—	—	—	—	$48.00	—	$3.80	$5.00	18	0
53	7,847	$0.05	$0.10	43.36%	$50.00	—	$5.50	$6.10	2,364	15

Forward $44.20. The 25-delta put carries +0.14 volatility points over the 25-delta call.

2026-11-27(18 days)ATM 38.89%±3.83skew +2.87

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
0	—	$4.80	$6.30	—	$38.50	—	—	—	—	—
0	—	$3.90	$5.40	—	$39.50	—	—	—	—	—
0	8	$3.50	$4.80	—	$40.00	44.53%	$0.25	$0.40	1,184	3
0	—	$3.20	$4.50	—	$40.50	—	—	—	—	—
1	105	$3.50	$4.00	—	$41.00	42.86%	$0.40	$0.55	51	0
0	—	$2.45	$3.70	—	$41.50	—	—	—	—	—
49	192	$2.60	$3.20	—	$42.00	41.73%	$0.65	$0.75	1,828	5
0	—	$2.45	$2.70	—	$42.50	42.87%	$0.70	$1.10	—	1
75	131	$2.15	$2.35	—	$43.00	41.22%	$0.95	$1.10	1,019	1
0	—	$1.85	$2.15	—	$43.50	40.38%	$1.10	$1.30	—	2
3	97	$1.60	$1.75	—	$44.00	40.23%	$1.35	$1.50	128	4
0	—	$1.30	$1.55	38.80%	$44.50	—	$1.50	$1.75	—	0
4	136	$1.10	$1.25	37.97%	$45.00	—	$1.90	$2.05	122	0
1	—	$0.90	$1.10	38.42%	$45.50	—	$2.10	$2.35	—	0
27	186	$0.75	$0.90	38.23%	$46.00	—	$2.45	$2.85	9	0
0	—	$0.60	$0.80	38.83%	$46.50	—	$2.85	$3.10	—	0
87	327	$0.50	$0.65	38.86%	$47.00	—	$3.10	$4.20	3	0
44	—	$0.35	$0.55	38.25%	$47.50	—	$3.50	$4.70	—	0
87	436	$0.30	$0.45	38.77%	$48.00	—	$3.80	$5.20	28	0
—	—	—	—	—	$48.50	—	$4.30	$5.60	—	0
3	185	$0.15	$0.25	41.99%	$50.00	—	$5.60	$7.20	3	0

Forward $44.30. The 25-delta put carries +2.87 volatility points over the 25-delta call.

2026-12-04(25 days)ATM 38.96%±4.51skew +2.08

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
0	1	$5.40	$6.80	—	$38.00	—	—	—	—	—
0	12	$3.70	$5.00	—	$40.00	41.23%	$0.35	$0.50	801	0
0	6	$3.50	$4.00	—	$41.00	40.60%	$0.55	$0.70	26	0
0	8	$3.00	$3.30	—	$42.00	39.58%	$0.80	$0.95	71	4
11	12	$2.40	$2.65	—	$43.00	38.62%	$1.15	$1.25	23	9
10	34	$1.85	$2.00	—	$44.00	39.13%	$1.60	$1.75	65	1
7	272	$1.35	$1.55	38.73%	$45.00	—	$2.10	$2.30	28	0
10	174	$1.00	$1.15	38.66%	$46.00	—	$2.65	$2.90	5	0
7	69	$0.70	$0.85	38.51%	$47.00	—	$3.30	$3.70	1	0
27	51	$0.50	$0.60	38.52%	$48.00	—	$4.00	$4.60	11	0
26	20	$0.35	$0.40	38.30%	$49.00	—	—	—	—	—
19	334	$0.20	$0.30	38.14%	$50.00	—	—	—	—	—
1	22	$0.15	$0.25	40.00%	$51.00	—	—	—	—	—

Forward $44.25. The 25-delta put carries +2.08 volatility points over the 25-delta call.

2026-12-11(32 days)ATM 38.47%±5.06skew +2.26

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
0	3	$6.40	$7.90	—	$37.00	—	—	—	—	—
—	—	—	—	—	$40.00	41.59%	$0.50	$0.65	27,869	33
0	1	$3.40	$4.40	—	$41.00	41.04%	$0.65	$0.95	4	4
—	—	—	—	—	$42.00	40.25%	$0.95	$1.20	3	1
8	11	$2.60	$2.90	—	$43.00	38.64%	$1.20	$1.55	7	0
0	4	$2.05	$2.35	—	$44.00	38.61%	$1.65	$2.00	27	0
6	8	$1.55	$1.90	38.43%	$45.00	—	$2.20	$2.50	2	0
3	13	$1.20	$1.50	38.73%	$46.00	—	$2.80	$3.20	15	0
353	7	$0.90	$1.15	38.63%	$47.00	—	—	—	—	—
4	5	$0.65	$0.90	38.78%	$48.00	—	$4.30	$4.60	1	0
25	6	$0.50	$0.65	38.85%	$49.00	—	—	—	—	—
22	51	$0.35	$0.45	38.28%	$50.00	—	—	—	—	—
4	45	$0.25	$0.30	37.91%	$51.00	—	—	—	—	—

Forward $44.38. The 25-delta put carries +2.26 volatility points over the 25-delta call.

2026-12-18(39 days)ATM 38.61%±5.60skew +2.36

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
0	7	$18.00	$19.60	—	$25.00	—	—	—	—	—
0	30	$13.10	$14.60	—	$30.00	—	—	—	—	—
0	148	$8.60	$9.70	—	$35.00	—	—	—	—	—
0	27	$6.30	$7.50	—	$37.50	43.03%	$0.30	$0.35	5,606	28
25	373	$4.50	$5.30	—	$40.00	40.72%	$0.65	$0.75	49,428	36
14	789	$3.10	$3.50	—	$42.50	39.49%	$1.35	$1.50	5,596	27
80	3,061	$1.85	$2.00	38.56%	$45.00	—	$2.50	$2.65	4,105	6
165	2,385	$1.00	$1.10	38.36%	$47.50	—	$4.00	$4.40	1,510	2
161	24,815	$0.50	$0.55	38.21%	$50.00	—	$5.90	$6.50	3,962	1
—	—	—	—	—	$55.00	—	$10.50	$11.70	1,440	0
—	—	—	—	—	$60.00	—	$15.40	$16.70	2	0
—	—	—	—	—	$65.00	—	$20.40	$22.10	2	0
—	—	—	—	—	$87.50	—	$43.00	$45.00	1	0
—	—	—	—	—	$90.00	—	$45.40	$46.10	109	240
—	—	—	—	—	$95.00	—	$50.40	$51.10	67	296

Forward $44.35. The 25-delta put carries +2.36 volatility points over the 25-delta call.

2026-12-24(45 days)ATM 38.66%±6.03skew +2.21

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
—	—	—	—	—	$39.00	41.84%	$0.50	$0.75	2	12
—	—	—	—	—	$40.00	41.12%	$0.70	$0.95	5	1
—	—	—	—	—	$41.00	38.97%	$0.80	$1.20	2	1
—	—	—	—	—	$42.00	38.84%	$1.10	$1.55	0	11
1	2	$2.95	$3.40	—	$43.00	38.05%	$1.45	$1.90	2	0
0	3	$2.40	$2.80	—	$44.00	38.68%	$2.00	$2.35	1	0
—	—	—	—	—	$46.00	—	$3.00	$3.50	1	0
0	3	$1.30	$1.45	38.41%	$47.00	—	—	—	—	—
4	0	$0.85	$1.15	36.75%	$48.00	—	—	—	—	—
19	0	$0.50	$0.75	37.56%	$50.00	—	—	—	—	—
1	0	$0.30	$0.45	38.07%	$52.00	—	—	—	—	—

Forward $44.43. The 25-delta put carries +2.21 volatility points over the 25-delta call.

2027-01-15(67 days)ATM 39.97%±7.62skew +2.12

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
0	17	$18.20	$19.80	—	$25.00	—	—	—	—	—
0	127	$13.40	$14.80	—	$30.00	47.58%	$0.05	$0.10	510	2
10	76	$9.00	$10.10	—	$35.00	45.42%	$0.35	$0.45	4,169	6
8	670	$5.60	$6.00	—	$40.00	41.32%	$1.20	$1.30	5,833	11
6	606	$4.00	$4.20	—	$42.50	40.41%	$2.05	$2.15	2,704	59
61	6,005	$2.70	$2.85	39.98%	$45.00	—	$3.20	$3.40	2,797	24
11	4,171	$1.75	$1.90	39.79%	$47.50	—	$4.70	$4.90	1,492	12
120	8,040	$1.10	$1.15	39.20%	$50.00	—	$6.40	$6.90	5,767	0
59	12,485	$0.35	$0.45	39.12%	$55.00	—	$10.70	$11.30	1,826	15
—	—	—	—	—	$60.00	—	$15.50	$16.80	245	0
42	14,306	$0.05	$0.10	43.39%	$65.00	—	$20.40	$21.20	81	244
—	—	—	—	—	$70.00	—	$25.50	$26.20	304	912
—	—	—	—	—	$75.00	—	$30.40	$31.20	700	2,105
—	—	—	—	—	$77.50	—	$33.00	$34.40	18	0
—	—	—	—	—	$80.00	—	$35.40	$37.10	12	0
—	—	—	—	—	$82.50	—	$38.00	$39.90	7	0
—	—	—	—	—	$85.00	—	$40.40	$41.20	150	443
—	—	—	—	—	$87.50	—	$42.90	$43.90	91	122
—	—	—	—	—	$90.00	—	$45.50	$47.00	9	0
—	—	—	—	—	$92.50	—	$48.00	$49.70	4	0
—	—	—	—	—	$95.00	—	$50.30	$52.10	9	0

Forward $44.47. The 25-delta put carries +2.12 volatility points over the 25-delta call.

How to read this

Calls on the left, puts on the right, the strike between them — the layout every chain uses. Each block is one expiration, and the heading carries its days to expiry, the at-the-money implied volatility, and the one-standard-deviation move that volatility implies over that time.

Only the 21 strikes nearest the forward are stored, which is the part of the board that carries the volume. The shaded side is in the money: below the forward for calls, above it for puts.

Implied volatility is shown on the out-of-the-money side only. An in-the-money option is nearly all intrinsic value quoted on a wide market, so a volatility solved from it would look authoritative and mean very little. The price is still shown, because the price is real; the blank is deliberate.