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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 Jul 31, 2026View All Dates
Calls ITMCalls OTMPuts ITMPuts OTM
36656018738


BIIB Jul 31, 2026 Exp. - Volume by Strike
Puts
Calls

BIIB Jul 31, 2026 Exp. - Open Interest by Strike

Puts
Calls

BIIB Jul 31, 2026 Exp. - Max Pain @ $200.00

Puts
Calls


BIIB Jul 31, 2026 Exp. - Option Chain
In the Money (ITM)
Calls
StrikePriceChangeVolOILastContract Name
280.00 C0.410%1107-17BIIB260731C00280000
275.00 C00%0BIIB260731C00275000
270.00 C00%0BIIB260731C00270000
265.00 C00%0BIIB260731C00265000
260.00 C00%0BIIB260731C00260000
255.00 C00%0BIIB260731C00255000
250.00 C1.13-42.93%5607-24BIIB260731C00250000
245.00 C2.300%3206-29BIIB260731C00245000
240.00 C0.25-44.44%1307-28BIIB260731C00240000
235.00 C0.36+89.47%124207-28BIIB260731C00235000
232.50 C0.600%2107-20BIIB260731C00232500
230.00 C0.40-60.40%162307-28BIIB260731C00230000
227.50 C0.600%545407-24BIIB260731C00227500
225.00 C1.10+10.00%41307-28BIIB260731C00225000
222.50 C1.000%6607-28BIIB260731C00222500
220.00 C1.46+102.78%186807-28BIIB260731C00220000
217.50 C1.75-12.50%64407-24BIIB260731C00217500
215.00 C1.99+43.17%165707-28BIIB260731C00215000
212.50 C2.85-5.00%9507-28BIIB260731C00212500
210.00 C3.50+29.63%153507-28BIIB260731C00210000
207.50 C5.01+13.86%121007-28BIIB260731C00207500
205.00 C5.40+8.00%11512807-28BIIB260731C00205000
202.50 C7.38+23.00%9710507-28BIIB260731C00202500
200.00 C13.80+12.20%21107-17BIIB260731C00200000
197.50 C9.77+55.08%1207-23BIIB260731C00197500
195.00 C10.30-15.37%106607-24BIIB260731C00195000
192.50 C10.36-21.28%31407-27BIIB260731C00192500
190.00 C14.750.00%91107-28BIIB260731C00190000
187.50 C15.300%1107-16BIIB260731C00187500
185.00 C32.70+34.02%1106-29BIIB260731C00185000
182.50 C00%0BIIB260731C00182500
180.00 C17.76-49.26%201507-15BIIB260731C00180000
177.50 C00%0BIIB260731C00177500
175.00 C22.380%2107-15BIIB260731C00175000
172.50 C00%0BIIB260731C00172500
170.00 C00%0BIIB260731C00170000
165.00 C00%0BIIB260731C00165000
160.00 C00%0BIIB260731C00160000
155.00 C00%0BIIB260731C00155000
150.00 C00%0BIIB260731C00150000
145.00 C00%0BIIB260731C00145000
140.00 C00%0BIIB260731C00140000
135.00 C00%0BIIB260731C00135000
130.00 C00%0BIIB260731C00130000
125.00 C00%0BIIB260731C00125000
120.00 C00%0BIIB260731C00120000
115.00 C82.300%1107-16BIIB260731C00115000
110.00 C00%0BIIB260731C00110000
105.00 C00%0BIIB260731C00105000
100.00 C00%0BIIB260731C00100000
Puts
StrikePriceChangeVolOILastContract Name
280.00 P00%0BIIB260731P00280000
275.00 P00%0BIIB260731P00275000
270.00 P00%0BIIB260731P00270000
265.00 P00%0BIIB260731P00265000
260.00 P00%0BIIB260731P00260000
255.00 P59.300%1107-16BIIB260731P00255000
250.00 P00%0BIIB260731P00250000
245.00 P00%0BIIB260731P00245000
240.00 P00%0BIIB260731P00240000
235.00 P00%0BIIB260731P00235000
232.50 P00%0BIIB260731P00232500
230.00 P00%0BIIB260731P00230000
227.50 P00%0BIIB260731P00227500
225.00 P00%0BIIB260731P00225000
222.50 P00%0BIIB260731P00222500
220.00 P12.910%2007-02BIIB260731P00220000
217.50 P00%0BIIB260731P00217500
215.00 P14.61-30.16%10707-28BIIB260731P00215000
212.50 P12.50-28.98%1107-28BIIB260731P00212500
210.00 P10.61+10.64%12907-28BIIB260731P00210000
207.50 P4.70-53.92%4507-28BIIB260731P00207500
205.00 P3.75-42.40%224207-28BIIB260731P00205000
202.50 P3.33-50.30%3207-28BIIB260731P00202500
200.00 P2.22-57.55%404607-28BIIB260731P00200000
197.50 P1.35-77.50%242407-28BIIB260731P00197500
195.00 P1.70-34.62%16817607-28BIIB260731P00195000
192.50 P2.360%2207-24BIIB260731P00192500
190.00 P1.55+2.65%12707-28BIIB260731P00190000
187.50 P1.78-20.89%91707-24BIIB260731P00187500
185.00 P0.40-70.37%115807-28BIIB260731P00185000
182.50 P1.30-10.34%1207-23BIIB260731P00182500
180.00 P0.30-40.00%27027507-28BIIB260731P00180000
177.50 P0.24-46.67%1507-28BIIB260731P00177500
175.00 P0.25-68.75%103507-27BIIB260731P00175000
172.50 P00%0BIIB260731P00172500
170.00 P0.10-91.67%2207-27BIIB260731P00170000
165.00 P00%0BIIB260731P00165000
160.00 P0.900%2106-24BIIB260731P00160000
155.00 P00%0BIIB260731P00155000
150.00 P00%0BIIB260731P00150000
145.00 P00%0BIIB260731P00145000
140.00 P00%0BIIB260731P00140000
135.00 P00%0BIIB260731P00135000
130.00 P0.200%6307-21BIIB260731P00130000
125.00 P00%0BIIB260731P00125000
120.00 P00%0BIIB260731P00120000
115.00 P00%0BIIB260731P00115000
110.00 P00%0BIIB260731P00110000
105.00 P0.180%4207-21BIIB260731P00105000
100.00 P0.15+50.00%201407-28BIIB260731P00100000


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