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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 ChainMax PainOption ChainPrice & VolumeSplitsHistoricalExchange VolumeDark Pool LevelsDark Pool PrintsExchangesShort VolumeShort Interest - DailyShort InterestBorrow Fee (CTB)Failure to Deliver (FTD)ShortsTrendsNewsMore
Expiration Dates
Jul 31, 2026Aug 7, 2026Aug 14, 2026Aug 21, 2026Aug 28, 2026Sep 4, 2026Sep 18, 2026Oct 16, 2026Dec 18, 2026Jan 15, 2027Mar 19, 2027Jun 17, 2027Jan 21, 2028

ITM/OTM for Aug 21, 2026View All Dates
Calls ITMCalls OTMPuts ITMPuts OTM
1,0181,21737887


BIIB Aug 21, 2026 Exp. - Volume by Strike
Puts
Calls

BIIB Aug 21, 2026 Exp. - Open Interest by Strike

Puts
Calls

BIIB Aug 21, 2026 Exp. - Max Pain @ $175.00

Puts
Calls


BIIB Aug 21, 2026 Exp. - Option Chain
In the Money (ITM)
Calls
StrikePriceChangeVolOILastContract Name
300.00 C0.23-75.79%2407-08BIIB260821C00300000
290.00 C00%0BIIB260821C00290000
280.00 C00%0BIIB260821C00280000
275.00 C00%0BIIB260821C00275000
270.00 C0.48-69.03%4807-08BIIB260821C00270000
265.00 C00%0BIIB260821C00265000
260.00 C1.10+89.66%1707-15BIIB260821C00260000
255.00 C00%0BIIB260821C00255000
250.00 C0.50-44.44%21707-24BIIB260821C00250000
245.00 C0.550%1107-22BIIB260821C00245000
240.00 C0.89-36.43%524507-28BIIB260821C00240000
235.00 C1.100%3207-28BIIB260821C00235000
232.50 C00%0BIIB260821C00232500
230.00 C1.30-20.73%2017707-27BIIB260821C00230000
227.50 C2.46+16.04%1207-28BIIB260821C00227500
225.00 C2.65+26.19%23707-28BIIB260821C00225000
222.50 C3.27-9.42%21007-28BIIB260821C00222500
220.00 C4.00+53.85%10247507-28BIIB260821C00220000
217.50 C4.65+49.52%1507-28BIIB260821C00217500
215.00 C4.28-16.08%11907-28BIIB260821C00215000
212.50 C00%0BIIB260821C00212500
210.00 C7.60+10.14%1320807-28BIIB260821C00210000
207.50 C00%0BIIB260821C00207500
205.00 C8.00+8.11%21607-28BIIB260821C00205000
202.50 C10.09+2.96%3407-27BIIB260821C00202500
200.00 C10.50-40.74%14707-28BIIB260821C00200000
197.50 C00%0BIIB260821C00197500
195.00 C16.20+80.00%33007-16BIIB260821C00195000
192.50 C00%0BIIB260821C00192500
190.00 C22.20+86.09%11307-16BIIB260821C00190000
187.50 C00%0BIIB260821C00187500
185.00 C28.10+37.01%2107-17BIIB260821C00185000
182.50 C00%0BIIB260821C00182500
180.00 C27.60+40.74%11707-16BIIB260821C00180000
175.00 C31.48-21.30%29129007-17BIIB260821C00175000
170.00 C36.34+29.05%160607-16BIIB260821C00170000
165.00 C45.780%2207-17BIIB260821C00165000
160.00 C44.10+11.36%1107-27BIIB260821C00160000
155.00 C00%0BIIB260821C00155000
150.00 C00%0BIIB260821C00150000
145.00 C00%0BIIB260821C00145000
140.00 C00%0BIIB260821C00140000
135.00 C00%0BIIB260821C00135000
130.00 C00%0BIIB260821C00130000
125.00 C00%0BIIB260821C00125000
120.00 C00%0BIIB260821C00120000
115.00 C00%0BIIB260821C00115000
110.00 C90.900%1107-16BIIB260821C00110000
105.00 C00%0BIIB260821C00105000
100.00 C00%0BIIB260821C00100000
Puts
StrikePriceChangeVolOILastContract Name
300.00 P00%0BIIB260821P00300000
290.00 P00%0BIIB260821P00290000
280.00 P00%0BIIB260821P00280000
275.00 P00%0BIIB260821P00275000
270.00 P00%0BIIB260821P00270000
265.00 P00%0BIIB260821P00265000
260.00 P00%0BIIB260821P00260000
255.00 P00%0BIIB260821P00255000
250.00 P00%0BIIB260821P00250000
245.00 P00%0BIIB260821P00245000
240.00 P34.31+21.88%11107-16BIIB260821P00240000
235.00 P00%0BIIB260821P00235000
232.50 P00%0BIIB260821P00232500
230.00 P25.800%1107-16BIIB260821P00230000
227.50 P00%0BIIB260821P00227500
225.00 P00%0BIIB260821P00225000
222.50 P00%0BIIB260821P00222500
220.00 P27.18+27.61%51007-15BIIB260821P00220000
217.50 P00%0BIIB260821P00217500
215.00 P00%0BIIB260821P00215000
212.50 P00%0BIIB260821P00212500
210.00 P12.91+5.56%21507-28BIIB260821P00210000
207.50 P00%0BIIB260821P00207500
205.00 P9.40-12.31%1607-27BIIB260821P00205000
202.50 P8.720%505007-28BIIB260821P00202500
200.00 P6.61-10.68%21307-28BIIB260821P00200000
197.50 P00%0BIIB260821P00197500
195.00 P7.00+71.57%18207-22BIIB260821P00195000
192.50 P00%0BIIB260821P00192500
190.00 P4.00-16.67%553707-27BIIB260821P00190000
187.50 P4.040%1107-20BIIB260821P00187500
185.00 P3.55-50.00%811307-20BIIB260821P00185000
182.50 P00%0BIIB260821P00182500
180.00 P2.60+16.59%13407-23BIIB260821P00180000
175.00 P1.75+2.34%42707-22BIIB260821P00175000
170.00 P2.04+8.51%21607-14BIIB260821P00170000
165.00 P0.80-35.48%2407-20BIIB260821P00165000
160.00 P00%0BIIB260821P00160000
155.00 P0.57+3.64%1107-09BIIB260821P00155000
150.00 P0.640%1107-14BIIB260821P00150000
145.00 P00%0BIIB260821P00145000
140.00 P00%0BIIB260821P00140000
135.00 P00%0BIIB260821P00135000
130.00 P00%0BIIB260821P00130000
125.00 P00%0BIIB260821P00125000
120.00 P00%0BIIB260821P00120000
115.00 P00%0BIIB260821P00115000
110.00 P00%0BIIB260821P00110000
105.00 P00%0BIIB260821P00105000
100.00 P0.250%2206-24BIIB260821P00100000


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