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BIIB
Biogen Inc. Common Stock
stock NASDAQ

At Close

Sep 15, 2026 3:59:59 PM EDT

216.28USD-0.497%(-1.08)755,891

215.99Bid 216.18Ask 0.19Spread

Pre-market

Sep 14, 2026 9:28:30 AM EDT

219.00USD+0.755%(+1.64)0

After-hours

Sep 15, 2026 4:37:30 PM EDT

216.17USD-0.051%(-0.11)105

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Sep 18, 2026 Sep 25, 2026 Oct 2, 2026 Oct 9, 2026 Oct 16, 2026 Oct 23, 2026 Oct 30, 2026 Dec 18, 2026 Jan 15, 2027 Mar 19, 2027 Apr 16, 2027 Jun 17, 2027 Sep 17, 2027 Jan 21, 2028

ITM/OTM for Oct 16, 2026View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
1,195	1,286	148	1,313

BIIB Oct 16, 2026 Exp. - Volume by Strike

Puts

Calls

BIIB Oct 16, 2026 Exp. - Open Interest by Strike

Puts

Calls

BIIB Oct 16, 2026 Exp. - Max Pain @ $190.00

Puts

Calls

BIIB Oct 16, 2026 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
300 C	0.20	0%	7	7	08-03	BIIB261016C00300000
290 C	0.95	+171.43%	2	21	08-13	BIIB261016C00290000
280 C	0.40	-74.19%	12	22	08-03	BIIB261016C00280000
270 C	0.80	-42.45%	1	21	08-25	BIIB261016C00270000
260 C	1.15	-32.35%	6	168	09-02	BIIB261016C00260000
250 C	0.83	-18.63%	1	301	09-14	BIIB261016C00250000
240 C	2.53	+6.30%	1	101	09-14	BIIB261016C00240000
230 C	4.05	-7.53%	2	332	09-14	BIIB261016C00230000
220 C	7.70	-3.99%	23	313	09-14	BIIB261016C00220000
210 C	14.70	+40.13%	1	225	09-11	BIIB261016C00210000
200 C	21.11	-5.76%	1	316	09-14	BIIB261016C00200000
195 C	30.30	+95.48%	1	6	08-27	BIIB261016C00195000
190 C	24.75	-36.38%	1	607	09-08	BIIB261016C00190000
185 C	25.35	+34.13%	2	3	08-12	BIIB261016C00185000
180 C	29.20	-18.57%	11	14	07-30	BIIB261016C00180000
175 C	44.30	+126.25%	1	7	09-14	BIIB261016C00175000
170 C	41.90	-1.87%	2	3	08-14	BIIB261016C00170000
165 C	52.35	0%	2	2	08-21	BIIB261016C00165000
160 C	55.90	+38.02%	1	8	07-29	BIIB261016C00160000
155 C	44.20	0%	1	0	05-22	BIIB261016C00155000
150 C	0	0%	0			BIIB261016C00150000
145 C	0	0%	0			BIIB261016C00145000
140 C	0	0%	0			BIIB261016C00140000
135 C	0	0%	0			BIIB261016C00135000
130 C	65.18	0%	1	1	03-11	BIIB261016C00130000
125 C	0	0%	0			BIIB261016C00125000
120 C	0	0%	0			BIIB261016C00120000
115 C	0	0%	0			BIIB261016C00115000
110 C	0	0%	0			BIIB261016C00110000
105 C	96.70	0%	1	1	07-16	BIIB261016C00105000
100 C	119.00	+13.23%	2	2	08-19	BIIB261016C00100000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
300 P	0	0%	0			BIIB261016P00300000
290 P	0	0%	0			BIIB261016P00290000
280 P	84.50	0%	1	1	07-16	BIIB261016P00280000
270 P	0	0%	0			BIIB261016P00270000
260 P	0	0%	0			BIIB261016P00260000
250 P	32.87	0%	1	1	08-19	BIIB261016P00250000
240 P	24.54	0%	1	1	08-19	BIIB261016P00240000
230 P	21.00	-43.27%	3	11	09-09	BIIB261016P00230000
220 P	9.20	-20.00%	6	134	09-11	BIIB261016P00220000
210 P	7.68	+9.71%	1	201	09-09	BIIB261016P00210000
200 P	3.50	-12.94%	5	49	09-10	BIIB261016P00200000
195 P	2.99	+5.65%	1	8	09-09	BIIB261016P00195000
190 P	1.20	-25.00%	5	493	09-10	BIIB261016P00190000
185 P	1.05	-40.34%	1	10	09-03	BIIB261016P00185000
180 P	0.50	-37.50%	6	165	09-02	BIIB261016P00180000
175 P	1.18	+31.11%	8	187	08-28	BIIB261016P00175000
170 P	0.20	-66.67%	1	52	09-03	BIIB261016P00170000
165 P	0.27	-75.45%	20	39	09-10	BIIB261016P00165000
160 P	1.15	-48.89%	6	31	09-08	BIIB261016P00160000
155 P	1.60	-54.29%	1	9	06-24	BIIB261016P00155000
150 P	0.61	-36.46%	1	12	08-19	BIIB261016P00150000
145 P	0.51	-40.00%	2	14	07-27	BIIB261016P00145000
140 P	0.83	-44.67%	1	11	06-24	BIIB261016P00140000
135 P	1.20	-20.00%	1	2	06-01	BIIB261016P00135000
130 P	1.25	+31.58%	2	10	07-29	BIIB261016P00130000
125 P	3.00	+25.00%	3	6	04-13	BIIB261016P00125000
120 P	1.50	-31.82%	1	8	04-28	BIIB261016P00120000
115 P	1.20	0%	1	1	04-28	BIIB261016P00115000
110 P	1.10	0.00%	1	4	04-14	BIIB261016P00110000
105 P	0.85	0%	1	1	04-10	BIIB261016P00105000
100 P	0	0%	0			BIIB261016P00100000

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