Tour v526
BIIB
BIOGEN INC
$214.35 -3.25%
$215.10 (+0.35%)🌙
as of 08/20 06:14 PM
(8/19 18:14) ◀
|
Thursday, August 20, 2026 (6:14pm)
January 2026
|
▶ (8/21 18:14)
◀ 8/20 18:14 ▶

Option Volume

Detail
ℹ
Current (08/20) 1,272
Calls: 643 (51%)
Puts: 629 (49%)
Prior (08/19) 946
Calls: 745 (79%)
Puts: 201 (21%)
Current vs Prior +34.46%
Calls: -13.69% (Calls)
Puts: +212.94% (Puts)
Prior 7-Day Total 9,443
Calls: 4,408 (47%)
Puts: 5,035 (53%)
Prior 7-Day Average 1,349
Calls: 629 (47%)
Puts: 719 (53%)
Current vs Prior 7-Day Avg -5.71%
Calls: +2.11%
Puts: -12.55%
Sentiment BULLISH

Dollar Volume

Detail
ℹ
Current (08/20) $925.8K
Calls: $450.4K (49%)
Puts: $475.4K (51%)
Prior (08/19) $1.20M
Calls: $1.07M (90%)
Puts: $124.9K (10%)
Current vs Prior -22.74%
Calls: -58.04%
Puts: +280.50%
Prior 7-Day Total $9.48M
Calls: $8.25M (87%)
Puts: $1.23M (13%)
Prior 7-Day Average $1.35M
Calls: $1.18M (87%)
Puts: $175.3K (13%)
Current vs Prior 7-Day Avg -31.61%
Calls: -61.78%
Puts: +171.17%
Sentiment BEARISH

Put/Call Ratio

Detail
ℹ
Current (08/20) 0.98
Prior (08/19) 0.27
Current vs Prior +262.58%
Prior 7-Day Average 1.25
Current vs Prior 7-Day Avg -21.52%
Sentiment NEUTRAL

Open Interest

Detail
ℹ
Current (08/20) 5,992
Calls: 5,435 (91%)
Puts: 557 (9%)
Prior (08/19) 15,352
Calls: 12,354 (80%)
Puts: 2,998 (20%)
Current vs Prior -60.97%
Prior 7-Day Total 66,193
Calls: 51,107 (77%)
Puts: 15,086 (23%)
Prior 7-Day Average 9,456
Calls: 7,301 (77%)
Puts: 2,155 (23%)
Current vs Prior 7-Day Avg -36.63%
Sentiment BEARISH

Expected Move

Detail
ℹ
Expiry (08/21) | Next (08/28)Expiry (08/21) | Next (09/18)
Current 2.56% | 4.97%2.56% | 10.03%
Prior 2.89% | 4.67%2.89% | 9.52%
Current vs Prior -11.49% | +6.36%-11.49% | +5.32%
Prior 7-Day Avg 3.08% | 4.93%3.85% | 10.45%
Current vs 7-Day Avg -16.93% | +0.72%-33.60% | -3.99%
Prior 7-Day Eod 2.89% | 4.67%2.89% | 9.52%
Current vs 7-Day Eod -11.49% | +6.36%-11.49% | +5.32%
Sentiment BULLISHBULLISH

Relative Spread

Detail
ℹ
Expiry | Next
Current 229.41% | 28.88%
Calls: 47.07% | 38.89%
Puts: 411.76% | 18.87%
Prior 229.41% | 28.88%
Calls: 47.07% | 38.89%
Puts: 411.76% | 18.87%
Current vs Prior +0.00% | +0.00%
Prior 7-Day Avg 229.41% | 28.88%
Calls: 47.07% | 38.89%
Puts: 411.76% | 18.87%
Current vs 7-Day Avg +0.00% | +0.00%
Liquidity Expensive
+
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🤖 AI Insights

P/C ratio rising 263% - increased hedging/bearish positioning. Call-heavy open interest (5,435 calls vs 557 puts) suggests bullish positioning. Declining open interest (down 61%) indicates positions being closed.

Smart Money BEARISH
Retail Flow NEUTRAL
Overall MIXED
Dollar Volume
Option Volume
Put/Call Ratio
Open Interest
Expected Move
Current BEARISH
Prior BULLISH
7-Day Avg BULLISH
Current NEUTRAL
Prior BULLISH
7-Day Avg NEUTRAL
Current NEUTRAL
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. 16 found (avg delta 0.69, highest 0.94)

CALLS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$205.00Aug 217.9011.60$9.7537.9%100.9428
$200.00Aug 2112.9015.90$14.4020.8%20.92--
$195.00Sep 419.0022.40$20.7016.4%60.89--
$207.50Aug 215.609.30$7.4549.7%10.80--
$200.00Sep 1816.0019.40$17.7019.2%10.80--
PUTS (2)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$217.50Aug 212.206.00$4.1092.7%10.66--
$220.00Sep 118.1011.50$9.8034.7%60.60--

Most actively traded options today. High liquidity = easy entry/exit. 46 active (total vol 589, top 122)

CALLS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$225.00Sep 111.754.90$3.3394.6%1220.3021
$220.00Aug 282.204.50$3.3568.7%730.3765
$210.00Sep 189.0012.80$10.9034.9%280.611.0K
$235.00Sep 110.003.80$1.90200.0%220.182
$230.00Sep 110.604.30$2.45151.0%180.2326
PUTS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$215.00Sep 115.208.80$7.0051.4%430.495
$210.00Sep 183.907.30$5.6060.7%370.39127
$200.00Sep 110.453.70$2.08156.2%360.195
$205.00Sep 111.554.90$3.23103.7%200.282
$210.00Aug 281.104.70$2.90124.1%160.34--

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 4 strikes (avg 128.8%, max 163.2%)

CALLS (3)
StrikeNear ExpFar ExpNear IVFar IVBack%VolOI
$210.00Aug 21Sep 1881.1%32.4%150.4%301.2K
$220.00Aug 21Sep 1882.4%34.0%142.6%231.3K
$215.00Aug 21Sep 1151.8%32.5%59.1%2169
PUTS (1)
StrikeNear ExpFar ExpNear IVFar IVBack%VolOI
$210.00Aug 21Sep 2581.1%30.8%163.2%336

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 25 found (best R:R 26.03, avg 4.31)

BULL CALL (5)
BuySellExpiryDebitMax GainMax LossPOPR:RBE
$240.00$250.00Sep 25$0.37$9.63$0.3717%26.03$240.37
$215.00$220.00Aug 28$1.30$3.70$1.3051%2.85$216.30
$210.00$215.00Aug 21$2.67$2.33$2.6775%0.87$212.67
$220.00$230.00Sep 18$2.60$7.40$2.6042%2.85$222.60
$230.00$235.00Sep 11$0.55$4.45$0.5523%8.09$230.55
BEAR PUT (5)
BuySellExpiryDebitMax GainMax LossPOPR:RBE
$210.00$205.00Aug 28$0.77$4.23$0.7734%5.49$209.23
$215.00$212.50Aug 21$0.67$1.83$0.6749%2.73$214.33
$212.50$210.00Aug 28$0.65$1.85$0.6541%2.85$211.85
$210.00$205.00Sep 11$1.57$3.43$1.5738%2.18$208.43
$220.00$215.00Sep 11$2.80$2.20$2.8060%0.79$217.20

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 18 found (best R:R 0.11, avg 0.33)

BEAR CALL (5)
SellBuyExpiryCreditMax GainMax LossPOPR:RBE
$220.00$222.50Aug 21$0.75$0.75$1.7568%0.43$220.75
$222.50$225.00Aug 21$0.50$0.50$2.0078%0.25$223.00
$220.00$225.00Sep 11$1.67$1.67$3.3360%0.50$221.67
$225.00$230.00Aug 21$0.30$0.30$4.7086%0.06$225.30
$215.00$220.00Sep 11$2.15$2.15$2.8549%0.75$217.15
BULL PUT (5)
SellBuyExpiryCreditMax GainMax LossPOPR:RBE
$200.00$180.00Sep 18$1.92$1.92$18.0880%0.11$198.08
$210.00$200.00Sep 18$3.25$3.25$6.7561%0.48$206.75
$205.00$200.00Sep 11$1.15$1.15$3.8572%0.30$203.85
$210.00$205.00Sep 25$1.72$1.72$3.2861%0.52$208.28
$210.00$205.00Sep 11$1.57$1.57$3.4362%0.46$208.43

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 4 found (avg debit $2.67, cheapest $1.55)

CALLS (2)
StrikeNear ExpFar ExpNet DebitNear IVFar IV
$220.00Aug 21Aug 28$1.5582.4%43.4%
$215.00Aug 21Aug 28$2.0251.8%35.9%
PUTS (2)
StrikeNear ExpFar ExpNet DebitNear IVFar IV
$212.50Aug 21Aug 28$2.1760.6%36.9%
$215.00Aug 21Sep 11$4.9551.8%32.5%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 9 found (cheapest 2.18% of stock, avg 5.33%)

StrikeExpiryCall$Put$TotalBE LowBE HighCost%
$215.00Aug 21$2.63$2.05$4.68$210.32$219.682.18%
$217.50Aug 21$1.90$4.10$6.00$211.50$223.502.80%
$210.00Aug 21$5.30$1.38$6.68$203.32$216.683.12%
$212.50Aug 28$6.05$3.55$9.60$202.90$222.104.48%
$210.00Aug 28$7.50$2.90$10.40$199.60$220.404.85%
$215.00Sep 11$7.15$7.00$14.15$200.85$229.156.60%
$220.00Sep 11$5.00$9.80$14.80$205.20$234.806.90%
$210.00Sep 18$10.90$5.60$16.50$193.50$226.507.70%
$200.00Sep 18$17.70$2.35$20.05$179.95$220.059.35%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 42 found (cheapest 0.76% of stock, avg 2.68%)

Call KPut KExpiryCall$Put$TotalBE LowBE High
$230.00$210.00Aug 21$0.25$1.38$1.63$208.37$231.63
$225.00$210.00Aug 21$0.55$1.38$1.93$208.07$226.93
$230.00$212.50Aug 21$0.25$1.38$1.63$210.87$231.63
$225.00$212.50Aug 21$0.55$1.38$1.93$210.57$226.93
$222.50$210.00Aug 21$1.05$1.38$2.43$207.57$224.93
$222.50$212.50Aug 21$1.05$1.38$2.43$210.07$224.93
$220.00$212.50Aug 21$1.80$1.38$3.18$209.32$223.18
$220.00$210.00Aug 21$1.80$1.38$3.18$206.82$223.18
$217.50$212.50Aug 21$1.90$1.38$3.28$209.22$220.78
$217.50$210.00Aug 21$1.90$1.38$3.28$206.72$220.78

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 2 found (best R:R 0.52, avg credit $1.86)

Put SpreadCall SpreadExpiryCreditMax LossPOPR:RBE LowBE High
200/205230/235Sep 11$1.70$3.3049%0.52$203.30$231.70
200/205225/230Sep 11$2.03$2.9742%0.68$202.97$227.03

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 15 found (best R:R 4.56, cheapest $0.05)

CALLS (5)
LowMidHighExpiryDebitMax GainPOPR:R
$200.00$210.00$220.00Sep 18$1.80$8.2038%4.56
$210.00$212.50$215.00Aug 28$0.05$2.4516%49.00
$205.00$207.50$210.00Aug 21$0.15$2.3519%15.67
$215.00$220.00$225.00Sep 11$0.48$4.5221%9.42
$220.00$222.50$225.00Aug 21$0.25$2.2518%9.00
PUTS (5)
LowMidHighExpiryDebitMax GainPOPR:R
$200.00$205.00$210.00Sep 11$0.42$4.5818%10.90
$210.00$215.00$220.00Sep 11$0.60$4.4022%7.33
$205.00$210.00$215.00Sep 11$0.63$4.3722%6.94
$210.00$212.50$215.00Aug 21$0.67$1.8323%2.73
$212.50$215.00$217.50Aug 21$1.38$1.1233%0.81

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 28 found (best net $-0.90, 23 credits)

CALLS (5)
Buy KSell KRatioExpiryNetMax Gain
$210.00$220.001:2Sep 18-$0.90$9.10
$200.00$210.001:2Sep 18-$4.10$5.90
$220.00$230.001:2Sep 18-$0.70$9.30
$222.50$225.001:2Aug 21-$0.05$2.45
$220.00$222.501:2Aug 21-$0.30$2.20
PUTS (5)
Buy KSell KRatioExpiryNetMax Gain
$217.50$215.001:2Aug 21$0.00$2.50
$215.00$212.501:2Aug 21-$0.71$1.79
$205.00$200.001:2Sep 11-$0.93$4.07
$210.00$205.001:2Aug 28-$1.36$3.64
$210.00$205.001:2Sep 11-$1.66$3.34

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 12 found (best yield 1.91%, avg 1.07%)

StrikeExpiryBidDeltaOTM%Yield%If Called%VolOI
$220.00Sep 18$4.100.422.6%1.91%4.55%16796
$215.00Sep 11$5.500.510.3%2.57%2.87%135
$230.00Sep 18$1.600.267.3%0.75%8.05%8604
$220.00Sep 11$3.300.402.6%1.54%4.18%72
$225.00Sep 11$1.750.305.0%0.82%5.78%12221
$215.00Sep 4$4.300.510.3%2.01%2.31%1012
$220.00Aug 28$2.200.372.6%1.03%3.66%7365
$230.00Sep 11$0.600.237.3%0.28%7.58%1826
$215.00Aug 28$2.800.510.3%1.31%1.61%4184
$220.00Aug 21$0.500.322.6%0.23%2.87%7520

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 643
Total Puts 629
Put/Call Ratio 0.98
Net Difference 14

Prior's Put/Call Breakdown

Total Calls 745
Total Puts 201
Put/Call Ratio 0.27
Net Difference 544

Prior 7-Day Put/Call Summary

Total Calls 4,408
Total Puts 5,035
Average Put/Call Ratio 1.25
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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