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BIIB
Biogen Inc. Common Stock
stock NASDAQ

At Close

Jul 29, 2026 3:59:59 PM EDT

209.35USD+1.817%(+3.74)2,399,767

0.00Bid 0.00Ask 0.00Spread

Pre-market

Jul 29, 2026 9:28:30 AM EDT

211.00USD+2.621%(+5.39)3,076

After-hours

Jul 29, 2026 4:39:30 PM EDT

209.23USD-0.055%(-0.12)104

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Jul 31, 2026 Aug 7, 2026 Aug 14, 2026 Aug 21, 2026 Aug 28, 2026 Sep 4, 2026 Sep 18, 2026 Oct 16, 2026 Dec 18, 2026 Jan 15, 2027 Mar 19, 2027 Jun 17, 2027 Jan 21, 2028

ITM/OTM for Jan 21, 2028View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
2,718	172	0	1,085

BIIB Jan 21, 2028 Exp. - Volume by Strike

Puts

Calls

BIIB Jan 21, 2028 Exp. - Open Interest by Strike

Puts

Calls

BIIB Jan 21, 2028 Exp. - Max Pain @ $150.00

Puts

Calls

BIIB Jan 21, 2028 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
320 C	0	0%	0			BIIB280121C00320000
310 C	0	0%	0			BIIB280121C00310000
300 C	0	0%	0			BIIB280121C00300000
290 C	13.00	-8.45%	30	54	07-15	BIIB280121C00290000
280 C	16.70	-12.11%	22	20	07-22	BIIB280121C00280000
270 C	21.00	-0.57%	2	7	07-17	BIIB280121C00270000
260 C	23.50	-6.00%	1	10	07-27	BIIB280121C00260000
250 C	21.50	-11.12%	10	29	06-08	BIIB280121C00250000
240 C	37.65	+26.22%	2	8	07-02	BIIB280121C00240000
230 C	34.25	+37.00%	2	22	07-17	BIIB280121C00230000
220 C	46.25	+5.35%	1	13	07-02	BIIB280121C00220000
210 C	34.65	-1.00%	1	9	07-15	BIIB280121C00210000
200 C	45.87	+14.68%	94	54	07-21	BIIB280121C00200000
195 C	50.20	+11.48%	4	385	07-13	BIIB280121C00195000
190 C	49.00	+11.36%	6	22	06-05	BIIB280121C00190000
185 C	45.10	+3.20%	1	17	04-29	BIIB280121C00185000
180 C	49.98	+2.78%	2	10	07-14	BIIB280121C00180000
175 C	50.60	-9.64%	2	22	05-14	BIIB280121C00175000
170 C	57.00	+19.25%	1	26	05-28	BIIB280121C00170000
165 C	62.66	+2.72%	1	12	06-23	BIIB280121C00165000
160 C	55.30	-8.60%	2	4	05-21	BIIB280121C00160000
155 C	68.52	+9.63%	16	12	06-11	BIIB280121C00155000
150 C	74.80	+1.08%	1	2,097	07-27	BIIB280121C00150000
145 C	72.75	+16.40%	1	5	03-11	BIIB280121C00145000
140 C	94.00	+19.71%	3	15	07-02	BIIB280121C00140000
135 C	74.53	+8.49%	1	3	07-14	BIIB280121C00135000
130 C	84.62	+5.25%	1	5	06-18	BIIB280121C00130000
125 C	81.67	+42.56%	1	2	07-14	BIIB280121C00125000
120 C	88.00	+9.59%	1	5	05-08	BIIB280121C00120000
115 C	0	0%	0			BIIB280121C00115000
110 C	94.35	+16.48%	1	4	04-30	BIIB280121C00110000
105 C	0	0%	0			BIIB280121C00105000
100 C	120.27	+15.64%	1	15	07-01	BIIB280121C00100000
95 C	0	0%	0			BIIB280121C00095000
90 C	104.80	-1.98%	1	1	12-03	BIIB280121C00090000
85 C	0	0%	0			BIIB280121C00085000
80 C	0	0%	0			BIIB280121C00080000
75 C	0	0%	0			BIIB280121C00075000
70 C	134.87	+0.65%	2	2	06-17	BIIB280121C00070000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
320 P	0	0%	0			BIIB280121P00320000
310 P	0	0%	0			BIIB280121P00310000
300 P	0	0%	0			BIIB280121P00300000
290 P	0	0%	0			BIIB280121P00290000
280 P	0	0%	0			BIIB280121P00280000
270 P	0	0%	0			BIIB280121P00270000
260 P	0	0%	0			BIIB280121P00260000
250 P	0	0%	0			BIIB280121P00250000
240 P	0	0%	0			BIIB280121P00240000
230 P	0	0%	0			BIIB280121P00230000
220 P	0	0%	0			BIIB280121P00220000
210 P	0	0%	0			BIIB280121P00210000
200 P	27.60	-9.51%	1	211	07-02	BIIB280121P00200000
195 P	36.44	-17.18%	2	1	04-20	BIIB280121P00195000
190 P	27.20	-5.23%	500	459	06-23	BIIB280121P00190000
185 P	23.36	-21.35%	2	19	05-13	BIIB280121P00185000
180 P	22.30	-2.19%	1	92	07-24	BIIB280121P00180000
175 P	23.80	0%	34	34	05-04	BIIB280121P00175000
170 P	16.00	0%	1	1	07-22	BIIB280121P00170000
165 P	16.42	+2.37%	2	42	07-14	BIIB280121P00165000
160 P	16.03	0%	3	3	06-15	BIIB280121P00160000
155 P	30.00	0%	1	1	11-11	BIIB280121P00155000
150 P	15.90	-18.21%	2	26	04-30	BIIB280121P00150000
145 P	14.20	-32.02%	1	6	04-29	BIIB280121P00145000
140 P	10.17	+4.31%	7	10	06-04	BIIB280121P00140000
135 P	17.28	0%	1	1	12-01	BIIB280121P00135000
130 P	9.70	-35.33%	1	2	04-22	BIIB280121P00130000
125 P	13.33	0%	1	1	12-01	BIIB280121P00125000
120 P	9.75	+8.33%	3	15	04-16	BIIB280121P00120000
115 P	11.60	0%	1	1	12-18	BIIB280121P00115000
110 P	3.40	-15.00%	4	31	07-23	BIIB280121P00110000
105 P	4.00	-28.83%	1	4	07-20	BIIB280121P00105000
100 P	2.58	-35.50%	1	2	06-15	BIIB280121P00100000
95 P	5.15	-9.97%	10	73	10-03	BIIB280121P00095000
90 P	1.00	-70.24%	3	4	02-09	BIIB280121P00090000
85 P	5.38	0%	25	25	09-29	BIIB280121P00085000
80 P	4.15	+3.75%	1	2	12-18	BIIB280121P00080000
75 P	4.14	0%	15	15	09-29	BIIB280121P00075000
70 P	1.77	+24.65%	4	4	02-13	BIIB280121P00070000