BIIB - Options Database

BIIB

BIOGEN INC

$213.36 +3.77%

(7/29 09:40) ◀

Wednesday, July 29, 2026 (9:45am)

▶ (7/29 09:50)

◀ 7/29 09:45 ▶

Option Volume

Detail

ℹ

Current (07/29 9:45am) 452

Calls: 333 (74%)

Puts: 119 (26%)

Prior --

Calls: 724 (49%)

Puts: 762 (51%)

Current vs Prior +0.00%

Calls: -54.01% (Calls)

Puts: -84.38% (Puts)

Prior 7-Day Total 10,598

Calls: 3,264 (31%)

Puts: 7,334 (69%)

Prior 7-Day Average 2,119

Calls: 466 (31%)

Puts: 1,047 (69%)

Current vs Prior 7-Day Avg -78.68%

Calls: -28.58%

Puts: -88.64%

Sentiment BULLISH

Dollar Volume

Detail

ℹ

Current (07/29 9:45am) $275.4K

Calls: $232.4K (84%)

Puts: $43.1K (16%)

Prior --

Calls: $358.6K (57%)

Puts: $273.1K (43%)

Current vs Prior +0.00%

Calls: -35.21%

Puts: -84.23%

Prior 7-Day Total $3.95M

Calls: $2.18M (55%)

Puts: $1.77M (45%)

Prior 7-Day Average $789.6K

Calls: $310.8K (55%)

Puts: $253.2K (45%)

Current vs Prior 7-Day Avg -65.12%

Calls: -25.25%

Puts: -82.98%

Sentiment BULLISH

Put/Call Ratio

Detail

ℹ

Current (07/29 9:45am) 0.36

Prior 1.00

Current vs Prior -64.26%

Prior 7-Day Average 1.63

Current vs Prior 7-Day Avg -78.07%

Sentiment BULLISH

Open Interest

Detail

ℹ

Current (07/29 9:45am) 43,914

Calls: 23,763 (54%)

Puts: 20,151 (46%)

Prior --

Calls: -- (--)

Puts: -- (--)

Current vs Prior +0.00%

Prior 7-Day Total 235,929

Calls: 124,759 (53%)

Puts: 111,170 (47%)

Prior 7-Day Average 47,185

Calls: 24,951 (53%)

Puts: 22,234 (47%)

Current vs Prior 7-Day Avg -6.93%

Sentiment BEARISH

Expected Move

Detail

ℹ

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

Current 4.25% | 5.95%8.41% | 13.47%

Prior 6.02% | 7.13%9.55% | 14.24%

Current vs Prior -29.46% | -16.52%-11.89% | -5.34%

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

Current vs 7-Day Avg -15.04% | -5.41%-11.89% | -5.34%

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

Current vs 7-Day Eod -29.46% | -16.52%-7.50% | -2.79%

Sentiment BULLISHBULLISH

Relative Spread

Detail

ℹ

Expiry | Next

Current 52.70% | 48.83%

Calls: 81.11% | 48.06%

Puts: 24.30% | 49.60%

Prior 21.32% | 27.11%

Calls: 21.43% | 28.57%

Puts: 21.21% | 25.64%

Current vs Prior +147.19% | +80.12%

Prior 7-Day Avg 58.73% | 39.11%

Calls: 57.82% | 37.46%

Puts: 59.66% | 40.75%

Current vs 7-Day Avg -10.27% | +24.85%

Liquidity Expensive

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🤖 AI Insights

Strong bullish conviction with 84% of dollar volume in calls ($232.4K) vs puts ($43.1K). Extreme bullish P/C ratio of 0.36 - heavy call buying (333 calls vs 119 puts). P/C ratio dropping 64% - 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 BULLISH

7-Day Avg BULLISH

Current BULLISH

Prior NEUTRAL

7-Day Avg NEUTRAL

Current BULLISH

Prior NEUTRAL

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
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

🎯

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 1 of results (avg 8.9%, best 8.9%)

CALLS (1)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$175.00	Aug 21	37.50	41.00	$39.25	8.9%	--	0.92	290

PUTS (0)

No puts meet the criteria

Affordable options under $1.00 per contract. Great for defined-risk strategies with minimal capital. 1 found (avg $0.55, cheapest $0.55)

CALLS (1)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$230.00	Jul 31	0.50	0.60	$0.55	18.2%	100	0.11	23

PUTS (0)

No puts meet the criteria

In-the-money options with delta >0.50. Higher probability of profit, lower leverage. 36 found (avg delta 0.78, highest 1.00)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$180.00	Jul 31	31.70	35.30	$33.50	10.7%	--	1.00	15
$195.00	Jul 31	16.70	20.50	$18.60	20.4%	--	0.94	66
$175.00	Aug 21	37.50	41.00	$39.25	8.9%	--	0.92	290
$182.50	Jul 31	29.10	32.90	$31.00	12.3%	1	0.92	--
$180.00	Aug 7	31.60	35.80	$33.70	12.5%	--	0.92	10

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$245.00	Jul 31	29.80	33.80	$31.80	12.6%	1	0.90	--
$235.00	Jul 31	20.00	24.00	$22.00	18.2%	1	0.89	--
$240.00	Aug 21	25.30	29.10	$27.20	14.0%	--	0.88	11
$225.00	Jul 31	10.50	13.90	$12.20	27.9%	1	0.81	--
$220.00	Aug 21	9.90	13.10	$11.50	27.8%	--	0.60	10

Most actively traded options today. High liquidity = easy entry/exit. 43 active (total vol 364, top 100)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$230.00	Jul 31	0.50	0.60	$0.55	18.2%	100	0.11	23
$230.00	Aug 21	1.05	4.50	$2.78	124.1%	35	0.24	177
$210.00	Jul 31	4.20	7.60	$5.90	57.6%	28	0.66	35
$232.50	Aug 21	0.15	4.10	$2.13	185.4%	28	0.20	--
$235.00	Aug 21	0.40	2.25	$1.33	139.1%	14	0.14	2

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$210.00	Jul 31	0.60	4.30	$2.45	151.0%	21	0.34	9
$190.00	Aug 7	0.10	2.30	$1.20	183.3%	20	0.11	2
$190.00	Aug 14	0.00	2.80	$1.40	200.0%	20	0.12	3
$180.00	Aug 21	0.00	2.40	$1.20	200.0%	15	0.09	34
$185.00	Aug 21	0.00	2.50	$1.25	200.0%	11	0.10	113

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 26 strikes (avg 106.7%, max 239.4%)

CALLS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$190.00	Jul 31	Aug 21	123.9%	40.8%	203.5%	1	24
$235.00	Jul 31	Aug 21	99.9%	34.3%	190.9%	14	244
$200.00	Jul 31	Aug 21	86.3%	34.9%	147.3%	--	58
$195.00	Jul 31	Sep 4	77.3%	34.4%	124.7%	1	66
$230.00	Jul 31	Aug 28	73.6%	35.9%	105.2%	100	46

PUTS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$185.00	Jul 31	Aug 28	144.0%	42.4%	239.4%	1	60
$190.00	Jul 31	Aug 28	123.9%	38.2%	224.8%	3	28
$175.00	Jul 31	Aug 21	184.4%	58.6%	214.7%	1	62
$200.00	Jul 31	Aug 21	86.3%	34.9%	147.3%	1	59
$202.50	Jul 31	Aug 21	77.8%	34.8%	123.4%	1	52

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 54 found (best R:R 54.56, avg 6.80)

BULL CALL (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	R:R	BE
$225.00	$235.00	Aug 7	$0.18	$9.82	$0.18	54.56	$225.18
$240.00	$250.00	Aug 21	$0.25	$9.75	$0.25	39.00	$240.25
$235.00	$240.00	Aug 7	$0.15	$4.85	$0.15	32.33	$235.15
$235.00	$240.00	Aug 21	$0.20	$4.80	$0.20	24.00	$235.20
$240.00	$245.00	Aug 7	$0.27	$4.73	$0.27	17.52	$240.27

BEAR PUT (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	R:R	BE
$195.00	$190.00	Aug 21	$0.17	$4.83	$0.17	28.41	$194.83
$202.50	$200.00	Jul 31	$0.10	$2.40	$0.10	24.00	$202.40
$190.00	$185.00	Aug 28	$0.20	$4.80	$0.20	24.00	$189.80
$200.00	$195.00	Aug 7	$0.25	$4.75	$0.25	19.00	$199.75
$195.00	$190.00	Aug 14	$0.40	$4.60	$0.40	11.50	$194.60

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 69 found (best R:R 49.00, avg 4.17)

BEAR CALL (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	R:R	BE
$190.00	$192.50	Jul 31	$2.40	$2.40	$0.10	24.00	$192.40
$192.50	$195.00	Jul 31	$2.40	$2.40	$0.10	24.00	$194.90
$187.50	$200.00	Aug 7	$12.00	$12.00	$0.50	24.00	$199.50
$175.00	$190.00	Aug 21	$14.35	$14.35	$0.65	22.08	$189.35
$195.00	$200.00	Jul 31	$4.75	$4.75	$0.25	19.00	$199.75

BULL PUT (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	R:R	BE
$235.00	$225.00	Jul 31	$9.80	$9.80	$0.20	49.00	$225.20
$245.00	$235.00	Jul 31	$9.80	$9.80	$0.20	49.00	$235.20
$240.00	$220.00	Aug 21	$15.70	$15.70	$4.30	3.65	$224.30
$225.00	$210.00	Jul 31	$9.75	$9.75	$5.25	1.86	$215.25
$220.00	$210.00	Aug 21	$5.55	$5.55	$4.45	1.25	$214.45

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 25 found (avg debit $1.08, cheapest $0.10)

CALLS (5)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$180.00	Jul 31	Aug 7	$0.20	86.7%	81.8%
$200.00	Jul 31	Aug 7	$0.50	86.3%	45.5%
$225.00	Jul 31	Aug 7	$0.55	74.2%	42.8%
$235.00	Jul 31	Aug 7	$0.75	99.9%	59.5%
$202.50	Jul 31	Aug 7	$1.15	77.8%	43.9%

PUTS (5)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$175.00	Jul 31	Aug 21	$0.10	184.4%	58.6%
$190.00	Jul 31	Aug 7	$0.12	123.9%	62.9%
$185.00	Jul 31	Aug 21	$0.17	144.0%	46.6%
$200.00	Jul 31	Aug 7	$0.28	86.3%	45.5%
$202.50	Jul 31	Aug 7	$0.55	77.8%	43.9%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 27 found (cheapest 3.91% of stock, avg 9.14%)

Strike	Expiry	Call$	Put$	Total	BE Low	BE High	Cost%
$210.00	Jul 31	$5.90	$2.45	$8.35	$201.65	$218.35	3.91%
$207.50	Jul 31	$7.75	$1.28	$9.03	$198.47	$216.53	4.23%
$205.00	Jul 31	$9.65	$1.35	$11.00	$194.00	$216.00	5.16%
$215.00	Aug 7	$5.20	$6.25	$11.45	$203.55	$226.45	5.37%
$210.00	Aug 7	$8.00	$4.00	$12.00	$198.00	$222.00	5.62%
$202.50	Jul 31	$11.55	$1.30	$12.85	$189.65	$215.35	6.02%
$205.00	Aug 7	$11.00	$2.28	$13.28	$191.72	$218.28	6.22%
$225.00	Jul 31	$1.38	$12.20	$13.58	$211.42	$238.58	6.36%
$215.00	Aug 14	$6.65	$7.75	$14.40	$200.60	$229.40	6.75%
$202.50	Aug 7	$12.70	$1.85	$14.55	$187.95	$217.05	6.82%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 93 found (cheapest 1.19% of stock, avg 2.64%)

Call K	Put K	Expiry	Call$	Put$	Total	BE Low	BE High
$227.50	$200.00	Jul 31	$1.33	$1.20	$2.53	$197.47	$230.03
$225.00	$200.00	Jul 31	$1.38	$1.20	$2.58	$197.42	$227.58
$227.50	$207.50	Jul 31	$1.33	$1.28	$2.61	$204.89	$230.11
$227.50	$202.50	Jul 31	$1.33	$1.30	$2.63	$199.87	$230.13
$225.00	$207.50	Jul 31	$1.38	$1.28	$2.66	$204.84	$227.66
$225.00	$202.50	Jul 31	$1.38	$1.30	$2.68	$199.82	$227.68
$227.50	$205.00	Jul 31	$1.33	$1.35	$2.68	$202.32	$230.18
$225.00	$205.00	Jul 31	$1.38	$1.35	$2.73	$202.27	$227.73
$240.00	$195.00	Aug 7	$1.60	$1.23	$2.83	$192.17	$242.83
$235.00	$195.00	Aug 7	$1.75	$1.23	$2.98	$192.02	$237.98

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 61 found (best R:R 6.58, avg credit $2.77)

Put Spread	Call Spread	Expiry	Credit	Max Loss	R:R	BE Low	BE High
195/198	210/212	Jul 31	$2.17	$0.33	6.58	$195.33	$212.17
195/200	205/210	Aug 21	$4.05	$0.95	4.26	$195.95	$209.05
200/202	205/208	Jul 31	$2.00	$0.50	4.00	$200.50	$207.00
202/205	208/210	Aug 7	$1.98	$0.52	3.81	$203.02	$209.48
202/205	210/212	Aug 7	$1.98	$0.52	3.81	$203.02	$211.98
200/202	208/210	Jul 31	$1.95	$0.55	3.55	$200.55	$209.45
200/202	208/210	Aug 7	$1.92	$0.58	3.31	$200.58	$209.42
200/202	210/212	Aug 7	$1.92	$0.58	3.31	$200.58	$211.92
200/205	215/220	Aug 14	$3.80	$1.20	3.17	$201.20	$218.80
200/202	205/210	Aug 21	$3.80	$1.20	3.17	$198.70	$208.80

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 24 found (best R:R 54.56, cheapest $0.05)

CALLS (5)

Low	Mid	High	Expiry	Debit	Max Gain	R:R
$205.00	$207.50	$210.00	Jul 31	$0.05	$2.45	49.00
$215.00	$217.50	$220.00	Jul 31	$0.09	$2.41	26.78
$220.00	$225.00	$230.00	Aug 28	$0.32	$4.68	14.62
$210.00	$212.50	$215.00	Jul 31	$0.19	$2.31	12.16
$202.50	$205.00	$207.50	Aug 7	$0.25	$2.25	9.00

PUTS (5)

Low	Mid	High	Expiry	Debit	Max Gain	R:R
$185.00	$190.00	$195.00	Aug 21	$0.09	$4.91	54.56
$197.50	$200.00	$202.50	Jul 31	$0.05	$2.45	49.00
$200.00	$202.50	$205.00	Aug 7	$0.06	$2.44	40.67
$190.00	$195.00	$200.00	Aug 7	$0.22	$4.78	21.73
$205.00	$210.00	$215.00	Aug 7	$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. 64 found (best net $-2.35, 54 credits)

CALLS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$187.50	$200.00	1:2	Aug 7	-$2.35	$10.15
$240.00	$250.00	1:2	Aug 21	-$0.63	$9.37
$225.00	$235.00	1:2	Aug 7	-$1.57	$8.43
$175.00	$190.00	1:2	Aug 21	-$10.55	$4.45
$220.00	$225.00	1:2	Aug 7	-$0.71	$4.29

PUTS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$220.00	$210.00	1:2	Aug 21	-$0.40	$9.60
$235.00	$225.00	1:2	Jul 31	-$2.40	$7.60
$210.00	$202.50	1:2	Aug 21	-$0.15	$7.35
$187.50	$180.00	1:2	Aug 7	-$1.11	$6.39
$205.00	$200.00	1:2	Aug 14	-$0.23	$4.77

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 23 found (best yield 3.05%, avg 0.94%)

Strike	Expiry	Bid	Delta	OTM%	Yield%	If Called%	Vol	OI
$215.00	Aug 21	$6.50	0.49	0.8%	3.05%	3.82%	--	19
$215.00	Aug 14	$4.80	0.48	0.8%	2.25%	3.02%	--	53
$220.00	Aug 28	$4.40	0.41	3.1%	2.06%	5.17%	--	14
$220.00	Aug 21	$4.00	0.40	3.1%	1.87%	4.99%	1	475
$215.00	Aug 7	$3.50	0.48	0.8%	1.64%	2.41%	1	560
$225.00	Sep 4	$3.30	0.34	5.5%	1.55%	7.00%	--	11
$222.50	Aug 21	$2.75	0.35	4.3%	1.29%	5.57%	--	10
$225.00	Aug 28	$2.55	0.33	5.5%	1.20%	6.65%	--	12
$225.00	Aug 21	$2.35	0.31	5.5%	1.10%	6.56%	1	37
$220.00	Aug 14	$2.30	0.37	3.1%	1.08%	4.19%	--	17

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 333

Total Puts 119

Put/Call Ratio 0.36

Net Difference 214

Prior's Put/Call Breakdown

Total Calls 724

Total Puts 762

Put/Call Ratio 1.00

Net Difference -38

Prior 7-Day Put/Call Summary

Total Calls 3,264

Total Puts 7,334

Average Put/Call Ratio 1.63

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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