Tour v422
BIIB
BIOGEN INC
$200.14 -1.01%
$199.08 (-0.53%)🌙
as of 07/27 06:15 PM
(7/24 01:55) ◀
|
Monday, July 27, 2026 (6:15pm)
January 2026
|
▶ (7/28 14:05)
◀ 7/27 18:15 ▶

Option Volume

Detail
ℹ
Current (07/27) 413
Calls: 134 (32%)
Puts: 279 (68%)
Prior (07/24) 774
Calls: 415 (54%)
Puts: 359 (46%)
Current vs Prior -46.64%
Calls: -67.71% (Calls)
Puts: -22.28% (Puts)
Prior 7-Day Total 8,795
Calls: 5,804 (66%)
Puts: 2,991 (34%)
Prior 7-Day Average 1,256
Calls: 829 (66%)
Puts: 427 (34%)
Current vs Prior 7-Day Avg -67.13%
Calls: -83.84%
Puts: -34.70%
Sentiment BEARISH

Dollar Volume

Detail
ℹ
Current (07/27) $503.8K
Calls: $66.5K (13%)
Puts: $437.2K (87%)
Prior (07/24) $471.5K
Calls: $193.8K (41%)
Puts: $277.8K (59%)
Current vs Prior +6.84%
Calls: -65.66%
Puts: +57.42%
Prior 7-Day Total $8.07M
Calls: $6.83M (85%)
Puts: $1.24M (15%)
Prior 7-Day Average $1.15M
Calls: $975.7K (85%)
Puts: $177.1K (15%)
Current vs Prior 7-Day Avg -56.30%
Calls: -93.18%
Puts: +146.91%
Sentiment BEARISH

Put/Call Ratio

Detail
ℹ
Current (07/27) 2.08
Prior (07/24) 0.87
Current vs Prior +140.69%
Prior 7-Day Average 1.00
Current vs Prior 7-Day Avg +109.01%
Sentiment BEARISH

Open Interest

Detail
ℹ
Current (07/27) 2,986
Calls: 1,777 (60%)
Puts: 1,209 (40%)
Prior (07/24) 6,462
Calls: 4,769 (74%)
Puts: 1,693 (26%)
Current vs Prior -53.79%
Prior 7-Day Total 70,235
Calls: 48,567 (69%)
Puts: 21,668 (31%)
Prior 7-Day Average 10,033
Calls: 6,938 (69%)
Puts: 3,095 (31%)
Current vs Prior 7-Day Avg -70.24%
Sentiment BEARISH

Expected Move

Detail
ℹ
Expiry (07/31) | Next (08/07)Expiry (08/21) | Next (09/18)
Current 6.10% | 7.39%9.24% | 14.79%
Prior 7.07% | 8.19%9.94% | 14.66%
Current vs Prior -13.81% | -9.66%-7.02% | +0.85%
Prior 7-Day Avg 4.01% | 7.32%8.02% | 13.84%
Current vs 7-Day Avg +52.09% | +0.99%+15.20% | +6.90%
Prior 7-Day Eod 7.07% | 8.19%9.94% | 14.66%
Current vs 7-Day Eod -13.81% | -9.66%-7.02% | +0.85%
Sentiment BULLISHBULLISH

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

Strong bearish conviction with 87% of dollar volume in puts ($437.2K) vs calls ($66.5K). Below-average activity with volume down 47% vs prior. Extreme bearish P/C ratio of 2.08 - heavy put buying. P/C ratio rising 141% - increased hedging/bearish positioning.

Smart Money BEARISH
Retail Flow BEARISH
Overall BEARISH
Dollar Volume
Option Volume
Put/Call Ratio
Open Interest
Expected Move
Current BEARISH
Prior BEARISH
7-Day Avg BULLISH
Current BEARISH
Prior NEUTRAL
7-Day Avg NEUTRAL
Current BEARISH
Prior NEUTRAL
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. 7 found (avg delta 0.62, highest 0.74)

CALLS (2)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$192.50Jul 318.5011.80$10.1532.5%30.73--
$200.00Aug 75.408.80$7.1047.9%10.532
PUTS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$210.00Jul 3110.5013.70$12.1026.4%20.74--
$210.00Aug 2112.7015.90$14.3022.4%20.65--
$205.00Jul 317.209.10$8.1523.3%10.62--
$205.00Aug 219.3012.80$11.0531.7%10.56--
$202.50Aug 76.009.40$7.7044.2%10.531

Most actively traded options today. High liquidity = easy entry/exit. 29 active (total vol 167, top 23)

CALLS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$220.00Jul 310.501.00$0.7566.7%230.1150
$230.00Aug 210.352.30$1.33146.6%200.12--
$210.00Jul 311.402.80$2.1066.7%140.2634
$220.00Aug 211.104.60$2.85122.8%120.23365
$225.00Sep 40.554.80$2.68158.6%110.20--
PUTS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$190.00Jul 310.402.05$1.22135.2%200.1810
$175.00Jul 310.000.70$0.35200.0%100.0525
$200.00Jul 314.406.20$5.3034.0%100.4810
$195.00Jul 312.303.90$3.1051.6%80.3410
$190.00Aug 212.606.10$4.3580.5%50.30536

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 9 strikes (avg 49.0%, max 74.0%)

CALLS (4)
StrikeNear ExpFar ExpNear IVFar IVBack%VolOI
$220.00Jul 31Aug 2171.6%44.2%61.9%35415
$210.00Jul 31Aug 2167.5%41.8%61.6%1534
$215.00Jul 31Aug 2861.6%40.3%52.8%31
$225.00Aug 28Sep 440.7%38.8%5.0%1410
PUTS (5)
StrikeNear ExpFar ExpNear IVFar IVBack%VolOI
$200.00Jul 31Aug 2865.1%37.4%74.0%1310
$210.00Jul 31Aug 2167.5%41.8%61.6%4--
$205.00Jul 31Aug 2165.8%43.4%51.5%2--
$190.00Jul 31Aug 2157.6%41.9%37.3%25546
$195.00Jul 31Aug 764.8%48.0%35.0%1010

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 17 found (best R:R 37.46, avg 6.27)

BULL CALL (5)
BuySellExpiryDebitMax GainMax LossR:RBE
$215.00$220.00Jul 31$0.13$4.87$0.1337.46$215.13
$220.00$230.00Aug 21$1.52$8.48$1.525.58$221.52
$215.00$225.00Aug 28$1.97$8.03$1.974.08$216.97
$210.00$220.00Aug 21$2.05$7.95$2.053.88$212.05
$210.00$215.00Jul 31$1.22$3.78$1.223.10$211.22
BEAR PUT (5)
BuySellExpiryDebitMax GainMax LossR:RBE
$190.00$180.00Jul 31$0.29$9.71$0.2933.48$189.71
$180.00$175.00Jul 31$0.58$4.42$0.587.62$179.42
$195.00$190.00Jul 31$1.88$3.12$1.881.66$193.12
$200.00$190.00Aug 21$3.95$6.05$3.951.53$196.05
$200.00$195.00Jul 31$2.20$2.80$2.201.27$197.80

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 18 found (best R:R 3.76, avg 0.82)

BEAR CALL (5)
SellBuyExpiryCreditMax GainMax LossR:RBE
$192.50$210.00Jul 31$8.05$8.05$9.450.85$200.55
$202.50$210.00Aug 21$3.05$3.05$4.450.69$205.55
$210.00$215.00Jul 31$1.22$1.22$3.780.32$211.22
$210.00$220.00Aug 21$2.05$2.05$7.950.26$212.05
$215.00$225.00Aug 28$1.97$1.97$8.030.25$216.97
BULL PUT (5)
SellBuyExpiryCreditMax GainMax LossR:RBE
$210.00$205.00Jul 31$3.95$3.95$1.053.76$206.05
$210.00$205.00Aug 21$3.25$3.25$1.751.86$206.75
$205.00$200.00Jul 31$2.85$2.85$2.151.33$202.15
$205.00$200.00Aug 21$2.75$2.75$2.251.22$202.25
$202.50$200.00Aug 7$1.20$1.20$1.300.92$201.30

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 9 found (avg debit $2.05, cheapest $0.35)

CALLS (4)
StrikeNear ExpFar ExpNet DebitNear IVFar IV
$225.00Aug 28Sep 4$0.3540.7%38.8%
$210.00Jul 31Aug 14$2.0867.5%44.1%
$220.00Jul 31Aug 21$2.1071.6%44.2%
$215.00Jul 31Aug 28$3.4261.6%40.3%
PUTS (5)
StrikeNear ExpFar ExpNet DebitNear IVFar IV
$195.00Jul 31Aug 7$1.1064.8%48.0%
$200.00Jul 31Aug 7$1.2065.1%48.4%
$210.00Jul 31Aug 21$2.2067.5%41.8%
$205.00Jul 31Aug 21$2.9065.8%43.4%
$190.00Jul 31Aug 21$3.1357.6%41.9%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 3 found (cheapest 6.80% of stock, avg 7.83%)

StrikeExpiryCall$Put$TotalBE LowBE HighCost%
$200.00Aug 7$7.10$6.50$13.60$186.40$213.606.80%
$210.00Jul 31$2.10$12.10$14.20$195.80$224.207.10%
$210.00Aug 21$4.90$14.30$19.20$190.80$229.209.59%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 22 found (cheapest 0.84% of stock, avg 3.52%)

Call KPut KExpiryCall$Put$TotalBE LowBE High
$220.00$180.00Jul 31$0.75$0.93$1.68$178.32$221.68
$215.00$180.00Jul 31$0.88$0.93$1.81$178.19$216.81
$220.00$190.00Jul 31$0.75$1.22$1.97$188.03$221.97
$215.00$190.00Jul 31$0.88$1.22$2.10$187.90$217.10
$210.00$180.00Jul 31$2.10$0.93$3.03$176.97$213.03
$210.00$190.00Jul 31$2.10$1.22$3.32$186.68$213.32
$220.00$195.00Jul 31$0.75$3.10$3.85$191.15$223.85
$215.00$195.00Jul 31$0.88$3.10$3.98$191.02$218.98
$210.00$195.00Jul 31$2.10$3.10$5.20$189.80$215.20
$230.00$190.00Aug 21$1.33$4.35$5.68$184.32$235.68

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 19 found (best R:R 4.43, avg credit $3.98)

Put SpreadCall SpreadExpiryCreditMax LossR:RBE LowBE High
205/210215/220Jul 31$4.08$0.924.43$205.92$219.08
200/205210/215Jul 31$4.07$0.934.38$200.93$214.07
190/200202/210Aug 21$7.00$3.002.33$193.00$209.50
195/200210/215Jul 31$3.42$1.582.16$196.58$213.42
190/195210/215Jul 31$3.10$1.901.63$191.90$213.10
190/200210/220Aug 21$6.00$4.001.50$194.00$216.00
200/205215/220Jul 31$2.98$2.021.48$202.02$217.98
190/200220/230Aug 21$5.47$4.531.21$194.53$225.47
175/180192/210Jul 31$8.63$8.870.97$171.37$201.13
200/205210/220Aug 21$4.80$5.200.92$200.20$214.80

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 7 found (best R:R 17.87, cheapest $0.32)

CALLS (2)
LowMidHighExpiryDebitMax GainR:R
$210.00$220.00$230.00Aug 21$0.53$9.4717.87
$210.00$215.00$220.00Jul 31$1.09$3.913.59
PUTS (5)
LowMidHighExpiryDebitMax GainR:R
$190.00$195.00$200.00Jul 31$0.32$4.6814.63
$200.00$205.00$210.00Aug 21$0.50$4.509.00
$170.00$175.00$180.00Jul 31$0.58$4.427.62
$195.00$200.00$205.00Jul 31$0.65$4.356.69
$200.00$205.00$210.00Jul 31$1.10$3.903.55

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 16 found (best net $-0.36, 11 credits)

CALLS (5)
Buy KSell KRatioExpiryNetMax Gain
$215.00$225.001:2Aug 28-$0.36$9.64
$210.00$220.001:2Aug 21-$0.80$9.20
$202.50$210.001:2Aug 21-$1.85$5.65
$215.00$220.001:2Jul 31-$0.62$4.38
$192.50$210.001:2Jul 31$5.95$11.55
PUTS (5)
Buy KSell KRatioExpiryNetMax Gain
$200.00$190.001:2Aug 21-$0.40$9.60
$190.00$180.001:2Jul 31-$0.64$9.36
$175.00$170.001:2Jul 31-$0.35$4.65
$200.00$195.001:2Jul 31-$0.90$4.10
$200.00$195.001:2Aug 7-$1.90$3.10

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 10 found (best yield 3.00%, avg 0.91%)

StrikeExpiryBidDeltaOTM%Yield%If Called%VolOI
$202.50Aug 21$6.000.481.2%3.00%4.18%31
$210.00Aug 21$3.400.354.9%1.70%6.63%1--
$210.00Aug 14$2.450.344.9%1.22%6.15%14
$215.00Aug 28$2.400.307.4%1.20%8.62%11
$210.00Jul 31$1.400.264.9%0.70%5.63%1434
$220.00Aug 21$1.100.239.9%0.55%10.47%12365
$225.00Sep 4$0.550.2012.4%0.27%12.70%11--
$220.00Jul 31$0.500.119.9%0.25%10.17%2350
$230.00Aug 21$0.350.1214.9%0.17%15.09%20--
$225.00Aug 28$0.150.1912.4%0.07%12.50%310

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 134
Total Puts 279
Put/Call Ratio 2.08
Net Difference -145

Prior's Put/Call Breakdown

Total Calls 415
Total Puts 359
Put/Call Ratio 0.87
Net Difference 56

Prior 7-Day Put/Call Summary

Total Calls 5,804
Total Puts 2,991
Average Put/Call Ratio 1.00
Ratio Trend Rising

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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