Tour v366
BIIB
BIOGEN INC
$199.95 -2.93%
$199.78 (-0.09%)🌙
as of 07/20 06:14 PM
(7/17 18:15) ◀
|
Monday, July 20, 2026 (6:14pm)
January 2026
|
▶ (7/21 18:15)
◀ 7/20 18:14 ▶

Option Volume

Detail
ℹ
Current (07/20) 1,117
Calls: 911 (82%)
Puts: 206 (18%)
Prior (07/17) 2,035
Calls: 1,605 (79%)
Puts: 430 (21%)
Current vs Prior -45.11%
Calls: -43.24% (Calls)
Puts: -52.09% (Puts)
Prior 7-Day Total 20,997
Calls: 16,011 (76%)
Puts: 4,986 (24%)
Prior 7-Day Average 2,999
Calls: 2,287 (76%)
Puts: 712 (24%)
Current vs Prior 7-Day Avg -62.76%
Calls: -60.17%
Puts: -71.08%
Sentiment BULLISH

Dollar Volume

Detail
ℹ
Current (07/20) $441.2K
Calls: $301.4K (68%)
Puts: $139.8K (32%)
Prior (07/17) $3.23M
Calls: $3.10M (96%)
Puts: $132.4K (4%)
Current vs Prior -86.35%
Calls: -90.28%
Puts: +5.55%
Prior 7-Day Total $18.12M
Calls: $15.68M (87%)
Puts: $2.44M (13%)
Prior 7-Day Average $2.59M
Calls: $2.24M (87%)
Puts: $348.4K (13%)
Current vs Prior 7-Day Avg -82.96%
Calls: -86.55%
Puts: -59.88%
Sentiment BULLISH

Put/Call Ratio

Detail
ℹ
Current (07/20) 0.23
Prior (07/17) 0.27
Current vs Prior -15.60%
Prior 7-Day Average 0.40
Current vs Prior 7-Day Avg -43.62%
Sentiment BULLISH

Open Interest

Detail
ℹ
Current (07/20) 6,842
Calls: 5,140 (75%)
Puts: 1,702 (25%)
Prior (07/17) 19,233
Calls: 13,101 (68%)
Puts: 6,132 (32%)
Current vs Prior -64.43%
Prior 7-Day Total 124,393
Calls: 89,138 (72%)
Puts: 35,255 (28%)
Prior 7-Day Average 17,770
Calls: 12,734 (72%)
Puts: 5,036 (28%)
Current vs Prior 7-Day Avg -61.50%
Sentiment BEARISH

Expected Move

Detail
ℹ
Expiry (07/24) | Next (07/31)Expiry (08/21) | Next (09/18)
Current 3.87% | 7.55%11.10% | 13.80%
Prior 4.84% | 7.86%1.36% | 12.69%
Current vs Prior -20.21% | -3.97%+716.80% | +8.73%
Prior 7-Day Avg 4.02% | 6.45%4.19% | 12.50%
Current vs 7-Day Avg -3.73% | +17.00%+165.26% | +10.46%
Prior 7-Day Eod 4.84% | 7.86%1.36% | 12.69%
Current vs 7-Day Eod -20.21% | -3.97%+716.80% | +8.73%
Sentiment BULLISHBEARISH

Relative Spread

Detail
ℹ
Expiry | Next
Current 114.07% | 61.49%
Calls: 98.96% | 51.55%
Puts: 129.19% | 71.43%
Prior 114.07% | 61.49%
Calls: 98.96% | 51.55%
Puts: 129.19% | 71.43%
Current vs Prior +0.00% | +0.00%
Prior 7-Day Avg 114.07% | 61.49%
Calls: 98.96% | 51.55%
Puts: 129.19% | 71.43%
Current vs 7-Day Avg -0.00% | +0.00%
Liquidity Expensive
+
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🤖 AI Insights

Moderately bullish flow with 68% call dollar volume ($301.4K). Light premium activity with dollar volume down 86% vs prior. Below-average activity with volume down 45% vs prior. Extreme bullish P/C ratio of 0.23 - heavy call buying (911 calls vs 206 puts).

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 BULLISH
7-Day Avg NEUTRAL
Current BULLISH
Prior BULLISH
7-Day Avg NEUTRAL
Current BULLISH
Prior BULLISH
7-Day Avg NEUTRAL
Current BEARISH
Prior BULLISH
7-Day Avg BULLISH

📈 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

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

No options available for this category

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. 12 found (avg delta 0.68, highest 1.00)

CALLS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$190.00Aug 712.9015.60$14.2518.9%100.7310
$197.50Jul 244.006.40$5.2046.2%30.698
$195.00Jul 318.5011.00$9.7525.6%10.64--
$195.00Aug 79.5012.80$11.1529.6%10.64--
$200.00Jul 243.104.30$3.7032.4%200.5790
PUTS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$215.00Jul 2413.3016.40$14.8520.9%11.002
$207.50Jul 246.609.50$8.0536.0%10.88--
$210.00Jul 3111.1014.50$12.8026.6%50.7015
$210.00Aug 2113.3016.80$15.0523.3%40.62--
$205.00Jul 317.9011.20$9.5534.6%10.58--

Most actively traded options today. High liquidity = easy entry/exit. 57 active (total vol 776, top 516)

CALLS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$205.00Jul 240.402.05$1.22135.2%5160.2921
$200.00Jul 243.104.30$3.7032.4%200.5790
$220.00Aug 212.054.80$3.4380.2%200.24343
$220.00Aug 282.406.30$4.3589.7%170.286
$202.50Jul 240.703.10$1.90126.3%160.42--
PUTS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$200.00Jul 241.054.00$2.53116.6%180.453
$192.50Jul 240.001.50$0.75200.0%110.16--
$185.00Aug 213.305.30$4.3046.5%80.26--
$205.00Aug 78.8012.10$10.4531.6%70.57--
$190.00Jul 240.000.75$0.38197.4%60.0915

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 8 strikes (avg 11.6%, max 20.4%)

CALLS (3)
StrikeNear ExpFar ExpNear IVFar IVBack%VolOI
$220.00Jul 24Aug 2849.6%42.0%18.0%1988
$195.00Jul 31Aug 749.6%44.3%12.1%2--
$225.00Jul 24Jul 3160.8%60.4%0.7%725
PUTS (5)
StrikeNear ExpFar ExpNear IVFar IVBack%VolOI
$185.00Jul 31Aug 2850.1%41.6%20.4%3--
$187.50Jul 24Aug 2145.4%39.2%15.8%2--
$205.00Jul 31Aug 2151.9%45.5%14.0%3--
$210.00Jul 31Aug 2149.6%44.8%10.8%915
$180.00Aug 14Aug 2842.5%42.1%0.8%2--

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 33 found (best R:R 13.71, avg 3.51)

BULL CALL (5)
BuySellExpiryDebitMax GainMax LossR:RBE
$215.00$217.50Jul 24$0.17$2.33$0.1713.71$215.17
$225.00$232.50Jul 31$0.75$6.75$0.759.00$225.75
$205.00$207.50Jul 24$0.32$2.18$0.326.81$205.32
$210.00$215.00Jul 31$0.67$4.33$0.676.46$210.67
$207.50$210.00Jul 24$0.42$2.08$0.424.95$207.92
BEAR PUT (5)
BuySellExpiryDebitMax GainMax LossR:RBE
$185.00$177.50Jul 31$0.70$6.80$0.709.71$184.30
$175.00$165.00Aug 21$0.95$9.05$0.959.53$174.05
$192.50$190.00Jul 24$0.37$2.13$0.375.76$192.13
$185.00$180.00Aug 14$0.84$4.16$0.844.95$184.16
$197.50$192.50Jul 24$0.95$4.05$0.954.26$196.55

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 37 found (best R:R 9.71, avg 0.97)

BEAR CALL (5)
SellBuyExpiryCreditMax GainMax LossR:RBE
$200.00$202.50Jul 24$1.80$1.80$0.702.57$201.80
$190.00$195.00Aug 7$3.10$3.10$1.901.63$193.10
$197.50$200.00Jul 24$1.50$1.50$1.001.50$199.00
$195.00$202.50Jul 31$3.70$3.70$3.800.97$198.70
$195.00$205.00Aug 7$4.85$4.85$5.150.94$199.85
BULL PUT (5)
SellBuyExpiryCreditMax GainMax LossR:RBE
$215.00$207.50Jul 24$6.80$6.80$0.709.71$208.20
$207.50$200.00Jul 24$5.52$5.52$1.982.79$201.98
$190.00$187.50Aug 21$1.70$1.70$0.802.13$188.30
$210.00$205.00Jul 31$3.25$3.25$1.751.86$206.75
$210.00$205.00Aug 21$2.90$2.90$2.101.38$207.10

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 15 found (avg debit $2.59, cheapest $0.87)

CALLS (5)
StrikeNear ExpFar ExpNet DebitNear IVFar IV
$220.00Jul 24Jul 31$0.8749.6%46.8%
$225.00Jul 24Jul 31$1.3060.8%60.4%
$195.00Jul 31Aug 7$1.4049.6%44.3%
$217.50Jul 24Jul 31$1.6046.8%51.7%
$215.00Jul 24Jul 31$2.1847.2%54.4%
PUTS (5)
StrikeNear ExpFar ExpNet DebitNear IVFar IV
$205.00Jul 31Aug 7$0.9051.9%46.3%
$180.00Aug 14Aug 21$1.0242.5%43.9%
$185.00Jul 31Aug 14$1.1250.1%41.0%
$210.00Jul 31Aug 21$2.2549.6%44.8%
$187.50Jul 24Aug 7$2.4745.4%44.2%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 10 found (cheapest 3.12% of stock, avg 7.07%)

StrikeExpiryCall$Put$TotalBE LowBE HighCost%
$200.00Jul 24$3.70$2.53$6.23$193.77$206.233.12%
$197.50Jul 24$5.20$1.70$6.90$190.60$204.403.45%
$207.50Jul 24$0.90$8.05$8.95$198.55$216.454.48%
$195.00Jul 31$9.75$4.40$14.15$180.85$209.157.08%
$205.00Jul 31$5.20$9.55$14.75$190.25$219.757.38%
$215.00Jul 24$0.40$14.85$15.25$199.75$230.257.63%
$210.00Jul 31$3.25$12.80$16.05$193.95$226.058.03%
$205.00Aug 7$6.30$10.45$16.75$188.25$221.758.38%
$205.00Aug 21$8.55$12.15$20.70$184.30$225.7010.35%
$210.00Aug 21$6.55$15.05$21.60$188.40$231.6010.80%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 70 found (cheapest 0.34% of stock, avg 3.09%)

Call KPut KExpiryCall$Put$TotalBE LowBE High
$215.00$187.50Jul 24$0.40$0.28$0.68$186.82$215.68
$210.00$187.50Jul 24$0.48$0.28$0.76$186.74$210.76
$215.00$190.00Jul 24$0.40$0.38$0.78$189.22$215.78
$210.00$190.00Jul 24$0.48$0.38$0.86$189.14$210.86
$215.00$192.50Jul 24$0.40$0.75$1.15$191.35$216.15
$207.50$187.50Jul 24$0.90$0.28$1.18$186.32$208.68
$210.00$192.50Jul 24$0.48$0.75$1.23$191.27$211.23
$207.50$190.00Jul 24$0.90$0.38$1.28$188.72$208.78
$205.00$187.50Jul 24$1.22$0.28$1.50$186.00$206.50
$205.00$190.00Jul 24$1.22$0.38$1.60$188.40$206.60

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 54 found (best R:R 6.58, avg credit $3.25)

Put SpreadCall SpreadExpiryCreditMax LossR:RBE LowBE High
190/192200/202Jul 24$2.17$0.336.58$190.33$202.17
205/210218/220Jul 31$4.03$0.974.15$205.97$221.53
205/210215/218Jul 31$4.00$1.004.00$206.00$219.00
200/208215/218Jul 24$5.69$1.813.14$201.81$220.69
190/192198/200Jul 24$1.87$0.632.97$190.63$199.37
190/200210/220Aug 21$7.42$2.582.88$192.58$217.42
188/190205/210Aug 21$3.70$1.302.85$186.30$208.70
180/185205/210Aug 21$3.40$1.602.13$181.60$208.40
175/180205/210Aug 21$3.17$1.831.73$176.83$208.17
190/200205/210Aug 21$6.30$3.701.70$193.70$211.30

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 10 found (best R:R 20.74, cheapest $0.12)

CALLS (4)
LowMidHighExpiryDebitMax GainR:R
$215.00$217.50$220.00Jul 24$0.12$2.3819.83
$202.50$205.00$207.50Jul 24$0.36$2.145.94
$205.00$210.00$215.00Jul 31$1.28$3.722.91
$200.00$202.50$205.00Jul 24$1.12$1.381.23
PUTS (5)
LowMidHighExpiryDebitMax GainR:R
$175.00$180.00$185.00Aug 21$0.23$4.7720.74
$187.50$190.00$192.50Jul 24$0.27$2.238.26
$200.00$205.00$210.00Aug 21$0.80$4.205.25
$200.00$207.50$215.00Jul 24$1.28$6.224.86
$185.00$195.00$205.00Jul 31$2.35$7.653.26

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 38 found (best net $-0.42, 31 credits)

CALLS (5)
Buy KSell KRatioExpiryNetMax Gain
$210.00$220.001:2Aug 21-$0.31$9.69
$195.00$205.001:2Aug 7-$1.45$8.55
$225.00$232.501:2Jul 31$0.00$7.50
$195.00$202.501:2Jul 31-$2.35$5.15
$220.00$225.001:2Jul 24-$0.22$4.78
PUTS (5)
Buy KSell KRatioExpiryNetMax Gain
$187.50$160.001:2Jul 24-$0.42$27.08
$200.00$190.001:2Aug 21-$1.45$8.55
$185.00$177.501:2Jul 31-$0.20$7.30
$215.00$207.501:2Jul 24-$1.25$6.25
$180.00$175.001:2Aug 21-$0.56$4.44

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 17 found (best yield 3.35%, avg 1.16%)

StrikeExpiryBidDeltaOTM%Yield%If Called%VolOI
$205.00Aug 21$6.700.452.5%3.35%5.88%4--
$210.00Aug 21$4.600.385.0%2.30%7.33%11--
$202.50Jul 31$4.500.471.3%2.25%3.53%67
$205.00Aug 7$4.500.442.5%2.25%4.78%1--
$205.00Jul 31$3.400.422.5%1.70%4.23%1--
$200.00Jul 24$3.100.570.0%1.55%1.58%2090
$220.00Aug 28$2.400.2810.0%1.20%11.23%176
$220.00Aug 21$2.050.2410.0%1.03%11.05%20343
$210.00Jul 31$1.700.315.0%0.85%5.88%2--
$222.50Aug 21$1.600.2311.3%0.80%12.08%8--

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 911
Total Puts 206
Put/Call Ratio 0.23
Net Difference 705

Prior's Put/Call Breakdown

Total Calls 1,605
Total Puts 430
Put/Call Ratio 0.27
Net Difference 1,175

Prior 7-Day Put/Call Summary

Total Calls 16,011
Total Puts 4,986
Average Put/Call Ratio 0.40
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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Chart Title

Price — Past 7 Days

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