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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 15, 2027View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
2,163	3,350	61	6,342

BIIB Jan 15, 2027 Exp. - Volume by Strike

Puts

Calls

BIIB Jan 15, 2027 Exp. - Open Interest by Strike

Puts

Calls

BIIB Jan 15, 2027 Exp. - Max Pain @ $175.00

Puts

Calls

BIIB Jan 15, 2027 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
320 C	0	0%	0			BIIB270115C00320000
310 C	0	0%	0			BIIB270115C00310000
300 C	1.95	-37.30%	1	79	07-22	BIIB270115C00300000
290 C	2.67	+18.14%	1	36	07-27	BIIB270115C00290000
280 C	3.32	+1.53%	1	413	07-24	BIIB270115C00280000
270 C	5.20	+14.29%	9	33	07-28	BIIB270115C00270000
260 C	5.90	+10.28%	1	113	07-27	BIIB270115C00260000
250 C	8.90	+12.66%	2	915	07-28	BIIB270115C00250000
240 C	9.50	-40.25%	3	181	07-08	BIIB270115C00240000
230 C	12.40	+57.56%	4	570	07-22	BIIB270115C00230000
220 C	16.20	-2.99%	7	170	07-27	BIIB270115C00220000
210 C	22.56	+15.10%	1	840	07-28	BIIB270115C00210000
200 C	26.50	+1.15%	3	237	07-28	BIIB270115C00200000
195 C	26.30	-3.34%	1	55	07-22	BIIB270115C00195000
190 C	37.65	+71.14%	1	45	07-17	BIIB270115C00190000
185 C	33.40	-9.58%	4	84	07-16	BIIB270115C00185000
180 C	36.20	-20.70%	50	534	07-23	BIIB270115C00180000
175 C	45.00	+59.57%	6	150	07-16	BIIB270115C00175000
170 C	42.90	+24.64%	15	69	07-16	BIIB270115C00170000
165 C	58.65	+70.64%	1	15	07-02	BIIB270115C00165000
160 C	60.58	+22.38%	2	40	06-26	BIIB270115C00160000
155 C	49.07	+5.87%	1	34	06-01	BIIB270115C00155000
150 C	58.10	-5.37%	1	379	07-21	BIIB270115C00150000
145 C	52.00	+0.93%	3	28	04-21	BIIB270115C00145000
140 C	62.29	+13.11%	4	59	05-14	BIIB270115C00140000
135 C	72.82	+21.37%	1	35	06-12	BIIB270115C00135000
130 C	90.85	+20.17%	5	135	07-02	BIIB270115C00130000
125 C	79.00	+41.30%	1	11	07-16	BIIB270115C00125000
120 C	74.00	-26.60%	15	49	07-14	BIIB270115C00120000
115 C	88.40	-0.67%	1	4	07-16	BIIB270115C00115000
110 C	105.28	+5.44%	5	11	06-26	BIIB270115C00110000
105 C	116.10	+38.15%	1	14	06-29	BIIB270115C00105000
100 C	104.70	+11.68%	1	26	06-24	BIIB270115C00100000
95 C	86.42	+42.21%	3	7	04-08	BIIB270115C00095000
90 C	111.00	+13.00%	1	41	02-23	BIIB270115C00090000
85 C	117.60	+62.21%	1	50	07-16	BIIB270115C00085000
80 C	107.80	+51.83%	2	17	11-26	BIIB270115C00080000
75 C	121.00	+49.38%	1	18	02-27	BIIB270115C00075000
70 C	115.00	+41.71%	1	11	02-04	BIIB270115C00070000
65 C	68.40	+7.04%	2	1	05-23	BIIB270115C00065000
60 C	137.00	+17.67%	5	4	02-19	BIIB270115C00060000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
320 P	0	0%	0			BIIB270115P00320000
310 P	0	0%	0			BIIB270115P00310000
300 P	170.50	0%	5	0	04-02	BIIB270115P00300000
290 P	0	0%	0			BIIB270115P00290000
280 P	0	0%	0			BIIB270115P00280000
270 P	0	0%	0			BIIB270115P00270000
260 P	110.09	0%	1	1	01-13	BIIB270115P00260000
250 P	51.66	-14.33%	2	1	07-23	BIIB270115P00250000
240 P	0	0%	0			BIIB270115P00240000
230 P	38.10	-36.50%	2	11	07-23	BIIB270115P00230000
220 P	27.60	+14.05%	1	18	07-17	BIIB270115P00220000
210 P	23.60	-0.42%	1	30	07-27	BIIB270115P00210000
200 P	17.91	-4.73%	20	46	07-27	BIIB270115P00200000
195 P	15.98	-2.56%	2	518	07-27	BIIB270115P00195000
190 P	15.10	-12.21%	20	33	07-23	BIIB270115P00190000
185 P	12.40	-20.51%	2	18	07-24	BIIB270115P00185000
180 P	10.70	+2.88%	3	329	07-24	BIIB270115P00180000
175 P	9.00	-18.18%	8	108	07-24	BIIB270115P00175000
170 P	7.10	-4.05%	7	62	07-27	BIIB270115P00170000
165 P	5.90	+1.72%	1	102	07-28	BIIB270115P00165000
160 P	4.70	-2.08%	1	171	07-28	BIIB270115P00160000
155 P	5.10	-36.25%	1	180	07-10	BIIB270115P00155000
150 P	3.42	-21.38%	1	331	07-16	BIIB270115P00150000
145 P	2.77	-21.97%	1	64	07-16	BIIB270115P00145000
140 P	1.80	-10.00%	5	48	07-06	BIIB270115P00140000
135 P	1.45	-20.77%	1	75	07-06	BIIB270115P00135000
130 P	1.00	-68.75%	1	120	06-30	BIIB270115P00130000
125 P	2.11	-17.90%	1	65	05-15	BIIB270115P00125000
120 P	1.10	-25.17%	99	341	07-28	BIIB270115P00120000
115 P	0.71	-24.47%	1	531	07-22	BIIB270115P00115000
110 P	2.95	+63.89%	53	1,104	07-17	BIIB270115P00110000
105 P	2.25	-2.17%	1	823	03-20	BIIB270115P00105000
100 P	2.01	-4.29%	12	1,071	04-08	BIIB270115P00100000
95 P	4.54	-16.54%	1	69	10-20	BIIB270115P00095000
90 P	0.45	-52.63%	3	23	04-20	BIIB270115P00090000
85 P	1.74	+335.00%	1	43	07-09	BIIB270115P00085000
80 P	2.64	+57.14%	6	17	02-03	BIIB270115P00080000
75 P	0.80	-57.89%	5	26	07-20	BIIB270115P00075000
70 P	0.52	-75.00%	1	12	01-14	BIIB270115P00070000
65 P	2.70	-22.86%	1	1	05-27	BIIB270115P00065000
60 P	0.69	-42.50%	10	11	09-16	BIIB270115P00060000