BIIB - Options Database

BIIB

BIOGEN INC

$208.92 +1.61%

(7/29 10:00) ◀

Wednesday, July 29, 2026 (2:05pm)

▶ (7/29 18:01)

◀ 7/29 14:05 ▶

Option Volume

Detail

ℹ

Current (07/29 2:05pm) 2,314

Calls: 1,327 (57%)

Puts: 987 (43%)

Prior (07/28) 1,786

Calls: 625 (35%)

Puts: 1,161 (65%)

Current vs Prior +29.56%

Calls: +112.32% (Calls)

Puts: -14.99% (Puts)

Prior 7-Day Total 12,381

Calls: 4,707 (38%)

Puts: 7,674 (62%)

Prior 7-Day Average 1,768

Calls: 672 (38%)

Puts: 1,096 (62%)

Current vs Prior 7-Day Avg +30.83%

Calls: +97.34%

Puts: -9.97%

Sentiment BULLISH

Dollar Volume

Detail

ℹ

Current (07/29 2:05pm) $2.00M

Calls: $1.06M (53%)

Puts: $942.3K (47%)

Prior (07/28) $1.05M

Calls: $443.8K (42%)

Puts: $608.1K (58%)

Current vs Prior +89.95%

Calls: +137.87%

Puts: +54.97%

Prior 7-Day Total $5.01M

Calls: $3.11M (62%)

Puts: $1.90M (38%)

Prior 7-Day Average $715.5K

Calls: $444.4K (62%)

Puts: $271.1K (38%)

Current vs Prior 7-Day Avg +179.23%

Calls: +137.53%

Puts: +247.61%

Sentiment BULLISH

Put/Call Ratio

Detail

ℹ

Current (07/29 2:05pm) 0.74

Prior (07/28) 1.86

Current vs Prior -59.96%

Prior 7-Day Average 1.05

Current vs Prior 7-Day Avg -29.25%

Sentiment NEUTRAL

Open Interest

Detail

ℹ

Current (07/29 2:05pm) 43,914

Calls: 23,763 (54%)

Puts: 20,151 (46%)

Prior (07/28) 41,944

Calls: 22,874 (55%)

Puts: 19,070 (45%)

Current vs Prior +4.70%

Prior 7-Day Total 323,757

Calls: 172,285 (53%)

Puts: 151,472 (47%)

Prior 7-Day Average 46,251

Calls: 24,612 (53%)

Puts: 21,638 (47%)

Current vs Prior 7-Day Avg -5.05%

Sentiment BEARISH

Expected Move

Detail

ℹ

WKMO Expiry (07/31) | Next (08/07)Expiry (08/21) | Next (09/18)

Current 3.78% | 5.58%8.07% | 13.28%

Prior 6.02% | 7.13%9.55% | 14.24%

Current vs Prior -37.19% | -21.79%-15.53% | -6.70%

Prior 7-Day Avg 5.00% | 6.29%9.55% | 14.24%

Current vs 7-Day Avg -24.34% | -11.38%-15.53% | -6.70%

Prior 7-Day Eod 6.02% | 7.13%9.09% | 13.86%

Current vs 7-Day Eod -37.19% | -21.79%-11.32% | -4.17%

Sentiment BULLISHBULLISH

Relative Spread

Detail

ℹ

Expiry | Next

Current 229.41% | 28.88%

Calls: 47.07% | 38.89%

Puts: 411.76% | 18.87%

Prior 21.32% | 27.11%

Calls: 21.43% | 28.57%

Puts: 21.21% | 25.64%

Current vs Prior +976.03% | +6.53%

Prior 7-Day Avg 58.73% | 39.11%

Calls: 57.82% | 37.46%

Puts: 59.66% | 40.75%

Current vs 7-Day Avg +290.60% | -26.16%

Liquidity Expensive

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🤖 AI Insights

Elevated premium activity with dollar volume up 90% vs prior. Dollar volume significantly above 7-day average (179% higher). P/C ratio dropping 60% - sentiment shifting bullish.

Smart Money BULLISH

Retail Flow BULLISH

Overall BULLISH

Dollar Volume

Option Volume

Put/Call Ratio

Open Interest

Expected Move

Current BULLISH

Prior BEARISH

7-Day Avg BULLISH

Current BULLISH

Prior BEARISH

7-Day Avg NEUTRAL

Current NEUTRAL

Prior BEARISH

7-Day Avg NEUTRAL

Current NEUTRAL

Prior NEUTRAL

7-Day Avg NEUTRAL

Current BEARISH

Prior BULLISH

7-Day Avg BULLISH

Sentiment Timeline (Today)

Time	Smart Money	Retail	Overall
14:05	BULLISH	BULLISH	BULLISH
10:00	BULLISH	BULLISH	BULLISH
09:55	BULLISH	BULLISH	BULLISH
09:50	BULLISH	BULLISH	BULLISH
09:45	BULLISH	BULLISH	BULLISH
09:40	BULLISH	BULLISH	BULLISH
09:35	BULLISH	BEARISH	BEARISH

📈 Options Analysis

🎯 Tightest Spreads

💰 Best Value Under $1

📊 High Delta (ITM)

🔥 High Volume

⏰ Backwardation

📈 Debit Spreads

📉 Credit Spreads

📅 Calendar Spreads

⚡ Straddles

🔀 Strangles

🦅 Iron Condors

🦋 Butterflies

⚖️ Ratio Spreads

🛡️ Covered Calls

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Tightest Spreads

💰

Best Value <$1

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High Delta

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Ratio Spreads

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Covered Calls

Options with the tightest bid-ask spreads (<10%). Lower spreads = better fills and less slippage. Showing top 2 of results (avg 9.5%, best 9.3%)

CALLS (2)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$170.00	Aug 21	38.00	41.70	$39.85	9.3%	1	0.92	606
$170.00	Jul 31	36.90	40.70	$38.80	9.8%	1	0.92	--

PUTS (0)

No puts meet the criteria

Affordable options under $1.00 per contract. Great for defined-risk strategies with minimal capital. -- found (avg $--, cheapest $--)

No options available for this category

In-the-money options with delta >0.50. Higher probability of profit, lower leverage. 43 found (avg delta 0.75, highest 0.95)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$195.00	Jul 31	12.80	15.40	$14.10	18.4%	--	0.95	66
$180.00	Jul 31	26.90	30.70	$28.80	13.2%	--	0.93	15
$170.00	Aug 21	38.00	41.70	$39.85	9.3%	1	0.92	606
$170.00	Jul 31	36.90	40.70	$38.80	9.8%	1	0.92	--
$175.00	Aug 21	33.10	37.00	$35.05	11.1%	--	0.91	290

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$245.00	Jul 31	34.40	38.20	$36.30	10.5%	1	0.92	--
$235.00	Jul 31	24.50	27.60	$26.05	11.9%	1	0.89	--
$240.00	Aug 21	29.80	33.60	$31.70	12.0%	--	0.88	11
$225.00	Jul 31	14.70	17.70	$16.20	18.5%	1	0.83	--
$222.50	Jul 31	12.30	15.40	$13.85	22.4%	232	0.82	--

Most actively traded options today. High liquidity = easy entry/exit. 82 active (total vol 1.3K, top 232)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$230.00	Jul 31	0.05	0.30	$0.18	138.9%	186	0.04	23
$202.50	Jul 31	5.10	9.00	$7.05	55.3%	91	0.81	105
$210.00	Jul 31	0.60	4.70	$2.65	154.7%	48	0.44	35
$230.00	Aug 21	0.05	3.70	$1.88	194.1%	48	0.18	177
$215.00	Jul 31	0.05	3.10	$1.58	193.0%	37	0.27	57

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$222.50	Jul 31	12.30	15.40	$13.85	22.4%	232	0.82	--
$215.00	Jul 31	5.50	9.10	$7.30	49.3%	163	0.73	7
$190.00	Aug 7	0.10	2.30	$1.20	183.3%	40	0.13	2
$190.00	Aug 14	0.00	3.20	$1.60	200.0%	40	0.15	3
$210.00	Jul 31	2.40	5.90	$4.15	84.3%	37	0.56	9

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 30 strikes (avg 102.6%, max 252.8%)

CALLS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$250.00	Jul 31	Aug 21	171.2%	48.5%	252.8%	8	23
$170.00	Jul 31	Aug 21	195.9%	61.1%	220.5%	2	606
$235.00	Jul 31	Aug 21	124.3%	42.7%	191.3%	19	244
$190.00	Jul 31	Aug 21	109.1%	39.6%	175.3%	1	24
$227.50	Jul 31	Aug 21	104.7%	39.0%	168.7%	1	56

PUTS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$175.00	Jul 31	Aug 21	174.1%	55.9%	211.3%	1	62
$190.00	Jul 31	Aug 28	109.1%	35.5%	207.6%	3	28
$180.00	Jul 31	Aug 21	135.4%	49.4%	173.8%	17	309
$185.00	Jul 31	Aug 28	107.4%	40.2%	167.3%	27	60
$187.50	Jul 31	Aug 7	120.0%	59.0%	103.4%	--	32

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 63 found (best R:R 44.45, avg 6.90)

BULL CALL (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	R:R	BE
$240.00	$250.00	Aug 21	$0.22	$9.78	$0.22	44.45	$240.22
$225.00	$235.00	Aug 7	$0.25	$9.75	$0.25	39.00	$225.25
$225.00	$227.50	Jul 31	$0.12	$2.38	$0.12	19.83	$225.12
$232.50	$235.00	Aug 21	$0.18	$2.32	$0.18	12.89	$232.68
$212.50	$215.00	Jul 31	$0.22	$2.28	$0.22	10.36	$212.72

BEAR PUT (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	R:R	BE
$190.00	$185.00	Aug 28	$0.12	$4.88	$0.12	40.67	$189.88
$175.00	$170.00	Aug 21	$0.13	$4.87	$0.13	37.46	$174.87
$195.00	$190.00	Aug 7	$0.15	$4.85	$0.15	32.33	$194.85
$190.00	$185.00	Aug 21	$0.15	$4.85	$0.15	32.33	$189.85
$205.00	$202.50	Jul 31	$0.15	$2.35	$0.15	15.67	$204.85

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 81 found (best R:R 65.67, avg 3.60)

BEAR CALL (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	R:R	BE
$195.00	$200.00	Jul 31	$4.85	$4.85	$0.15	32.33	$199.85
$180.00	$185.00	Aug 7	$4.85	$4.85	$0.15	32.33	$184.85
$170.00	$175.00	Aug 21	$4.80	$4.80	$0.20	24.00	$174.80
$192.50	$195.00	Jul 31	$2.35	$2.35	$0.15	15.67	$194.85
$175.00	$190.00	Aug 21	$13.95	$13.95	$1.05	13.29	$188.95

BULL PUT (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	R:R	BE
$235.00	$225.00	Jul 31	$9.85	$9.85	$0.15	65.67	$225.15
$225.00	$222.50	Jul 31	$2.35	$2.35	$0.15	15.67	$222.65
$222.50	$215.00	Jul 31	$6.55	$6.55	$0.95	6.89	$215.95
$240.00	$220.00	Aug 21	$17.15	$17.15	$2.85	6.02	$222.85
$220.00	$210.00	Aug 21	$6.55	$6.55	$3.45	1.90	$213.45

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 28 found (avg debit $1.28, cheapest $0.12)

CALLS (5)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$180.00	Jul 31	Aug 7	$0.35	135.4%	73.7%
$225.00	Jul 31	Aug 7	$0.35	99.0%	50.8%
$220.00	Jul 31	Aug 7	$0.40	77.7%	40.7%
$235.00	Jul 31	Aug 7	$0.40	124.3%	64.9%
$245.00	Jul 31	Aug 7	$0.50	146.2%	78.5%

PUTS (5)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$190.00	Jul 31	Aug 7	$0.12	109.1%	54.8%
$175.00	Jul 31	Aug 21	$0.25	174.1%	55.9%
$180.00	Jul 31	Aug 7	$0.40	135.4%	73.7%
$195.00	Jul 31	Aug 7	$1.00	62.9%	46.0%
$185.00	Jul 31	Aug 21	$1.15	107.4%	45.5%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 32 found (cheapest 2.97% of stock, avg 8.72%)

Strike	Expiry	Call$	Put$	Total	BE Low	BE High	Cost%
$205.00	Jul 31	$5.10	$1.10	$6.20	$198.80	$211.20	2.97%
$207.50	Jul 31	$3.75	$2.63	$6.38	$201.12	$213.88	3.05%
$210.00	Jul 31	$2.65	$4.15	$6.80	$203.20	$216.80	3.25%
$202.50	Jul 31	$7.05	$0.95	$8.00	$194.50	$210.50	3.83%
$215.00	Jul 31	$1.58	$7.30	$8.88	$206.12	$223.88	4.25%
$200.00	Jul 31	$9.25	$0.50	$9.75	$190.25	$209.75	4.67%
$205.00	Aug 7	$7.25	$3.35	$10.60	$194.40	$215.60	5.07%
$210.00	Aug 7	$4.93	$5.90	$10.83	$199.17	$220.83	5.18%
$202.50	Aug 7	$8.85	$2.42	$11.27	$191.23	$213.77	5.39%
$215.00	Aug 7	$2.95	$8.85	$11.80	$203.20	$226.80	5.65%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 98 found (cheapest 1.04% of stock, avg 2.55%)

Call K	Put K	Expiry	Call$	Put$	Total	BE Low	BE High
$220.00	$202.50	Jul 31	$1.23	$0.95	$2.18	$200.32	$222.18
$220.00	$192.50	Jul 31	$1.23	$1.08	$2.31	$190.19	$222.31
$220.00	$205.00	Jul 31	$1.23	$1.10	$2.33	$202.67	$222.33
$220.00	$197.50	Jul 31	$1.23	$1.13	$2.36	$195.14	$222.36
$217.50	$202.50	Jul 31	$1.50	$0.95	$2.45	$200.05	$219.95
$215.00	$202.50	Jul 31	$1.58	$0.95	$2.53	$199.97	$217.53
$217.50	$192.50	Jul 31	$1.50	$1.08	$2.58	$189.92	$220.08
$217.50	$205.00	Jul 31	$1.50	$1.10	$2.60	$202.40	$220.10
$217.50	$197.50	Jul 31	$1.50	$1.13	$2.63	$194.87	$220.13
$215.00	$192.50	Jul 31	$1.58	$1.08	$2.66	$189.84	$217.66

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 92 found (best R:R 7.33, avg credit $2.64)

Put Spread	Call Spread	Expiry	Credit	Max Loss	R:R	BE Low	BE High
180/185	190/195	Aug 21	$4.40	$0.60	7.33	$180.60	$194.40
195/198	205/208	Jul 31	$2.13	$0.37	5.76	$195.37	$207.13
170/175	190/195	Aug 21	$4.23	$0.77	5.49	$170.77	$194.23
180/185	195/200	Aug 21	$4.20	$0.80	5.25	$180.80	$199.20
185/190	195/200	Aug 21	$4.05	$0.95	4.26	$185.95	$199.05
200/202	205/208	Aug 7	$2.02	$0.48	4.21	$200.48	$207.02
170/175	195/200	Aug 21	$4.03	$0.97	4.15	$170.97	$199.03
195/200	205/210	Aug 21	$4.03	$0.97	4.15	$195.97	$209.03
202/205	210/212	Aug 7	$1.96	$0.54	3.63	$203.04	$211.96
205/210	215/220	Aug 7	$3.87	$1.13	3.42	$206.13	$218.87

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 35 found (best R:R 32.33, cheapest $0.08)

CALLS (5)

Low	Mid	High	Expiry	Debit	Max Gain	R:R
$200.00	$205.00	$210.00	Aug 21	$0.15	$4.85	32.33
$210.00	$212.50	$215.00	Aug 7	$0.08	$2.42	30.25
$190.00	$192.50	$195.00	Jul 31	$0.10	$2.40	24.00
$202.50	$205.00	$207.50	Aug 7	$0.10	$2.40	24.00
$190.00	$195.00	$200.00	Aug 21	$0.20	$4.80	24.00

PUTS (5)

Low	Mid	High	Expiry	Debit	Max Gain	R:R
$225.00	$235.00	$245.00	Jul 31	$0.40	$9.60	24.00
$175.00	$180.00	$185.00	Aug 21	$0.28	$4.72	16.86
$190.00	$195.00	$200.00	Aug 7	$0.40	$4.60	11.50
$205.00	$210.00	$215.00	Aug 7	$0.40	$4.60	11.50
$190.00	$195.00	$200.00	Aug 21	$0.53	$4.47	8.43

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 81 found (best net $-0.30, 71 credits)

CALLS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$195.00	$210.00	1:2	Sep 4	-$0.30	$14.70
$187.50	$200.00	1:2	Aug 7	$0.00	$12.50
$205.00	$215.00	1:2	Aug 14	-$0.25	$9.75
$240.00	$250.00	1:2	Aug 21	-$0.66	$9.34
$230.00	$240.00	1:2	Aug 28	-$0.72	$9.28

PUTS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$220.00	$210.00	1:2	Aug 21	-$1.45	$8.55
$222.50	$215.00	1:2	Jul 31	-$0.75	$6.75
$187.50	$180.00	1:2	Aug 7	-$1.03	$6.47
$210.00	$202.50	1:2	Aug 21	-$1.16	$6.34
$200.00	$195.00	1:2	Aug 14	-$0.37	$4.63

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 21 found (best yield 3.64%, avg 0.91%)

Strike	Expiry	Bid	Delta	OTM%	Yield%	If Called%	Vol	OI
$210.00	Sep 4	$7.60	0.51	0.5%	3.64%	4.15%	1	--
$210.00	Aug 21	$5.70	0.50	0.5%	2.73%	3.25%	18	208
$215.00	Aug 21	$3.50	0.40	2.9%	1.68%	4.59%	2	19
$220.00	Aug 28	$3.10	0.34	5.3%	1.48%	6.79%	--	14
$210.00	Aug 7	$2.85	0.48	0.5%	1.36%	1.88%	6	9
$215.00	Aug 14	$2.60	0.39	2.9%	1.24%	4.15%	--	53
$225.00	Sep 4	$2.05	0.28	7.7%	0.98%	8.68%	--	11
$220.00	Aug 21	$1.95	0.32	5.3%	0.93%	6.24%	8	475
$212.50	Aug 7	$1.90	0.41	1.7%	0.91%	2.62%	11	1
$225.00	Aug 28	$1.80	0.27	7.7%	0.86%	8.56%	--	12

Current 5-Minute Volume Snapshots

Time (HH:MM)	Total Volume	Call Volume	Put Volume	Volume Change
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Prior's 5-Minute Volume Snapshots

Time (HH:MM)	Total Volume	Call Volume	Put Volume	Volume Change
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Current Put/Call Breakdown

Total Calls 1,327

Total Puts 987

Put/Call Ratio 0.74

Net Difference 340

Prior's Put/Call Breakdown

Total Calls 625

Total Puts 1,161

Put/Call Ratio 1.86

Net Difference -536

Prior 7-Day Put/Call Summary

Total Calls 4,707

Total Puts 7,674

Average Put/Call Ratio 1.05

Ratio Trend Falling

Daily Put/Call History (Last 7 Days)

Date	Calls	Puts	Ratio	Net Diff
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Upcoming Earnings - 2 Weeks Prior

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Upcoming Earnings - 1 Week Prior

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Earnings This Week

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Earnings - Day Before / Day After

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Options Activity Around Earnings

Ticker	Earnings Date	Days Away	Call Volume	Put Volume	IV Rank
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Option Volume

Dollar Volume

Put/Call Ratio

Open Interest

Expected Move

Relative Spread

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📈 Options Analysis

Current 5-Minute Volume Snapshots

Prior's 5-Minute Volume Snapshots

Current Put/Call Breakdown

Prior's Put/Call Breakdown

Prior 7-Day Put/Call Summary

Daily Put/Call History (Last 7 Days)

Upcoming Earnings - 2 Weeks Prior

Upcoming Earnings - 1 Week Prior

Earnings This Week

Earnings - Day Before / Day After

Options Activity Around Earnings

Chart Title

Price — Past 7 Days

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