Tour v381
BIIB
BIOGEN INC
$203.16 +1.61%
(7/20 18:14) ◀
|
Tuesday, July 21, 2026 (6:15pm)
January 2026
|
▶ (7/22 18:44)
◀ 7/21 18:15 ▶

Option Volume

Detail
ℹ
Current (07/21) 566
Calls: 306 (54%)
Puts: 260 (46%)
Prior (07/20) 1,117
Calls: 911 (82%)
Puts: 206 (18%)
Current vs Prior -49.33%
Calls: -66.41% (Calls)
Puts: +26.21% (Puts)
Prior 7-Day Total 21,017
Calls: 16,081 (77%)
Puts: 4,936 (23%)
Prior 7-Day Average 3,002
Calls: 2,297 (77%)
Puts: 705 (23%)
Current vs Prior 7-Day Avg -81.15%
Calls: -86.68%
Puts: -63.13%
Sentiment BULLISH

Dollar Volume

Detail
ℹ
Current (07/21) $677.3K
Calls: $576.6K (85%)
Puts: $100.7K (15%)
Prior (07/20) $441.2K
Calls: $301.4K (68%)
Puts: $139.8K (32%)
Current vs Prior +53.50%
Calls: +91.28%
Puts: -27.97%
Prior 7-Day Total $17.82M
Calls: $15.41M (86%)
Puts: $2.42M (14%)
Prior 7-Day Average $2.55M
Calls: $2.20M (86%)
Puts: $345.2K (14%)
Current vs Prior 7-Day Avg -73.40%
Calls: -73.80%
Puts: -70.83%
Sentiment BULLISH

Put/Call Ratio

Detail
ℹ
Current (07/21) 0.85
Prior (07/20) 0.23
Current vs Prior +275.75%
Prior 7-Day Average 0.39
Current vs Prior 7-Day Avg +117.97%
Sentiment NEUTRAL

Open Interest

Detail
ℹ
Current (07/21) 4,875
Calls: 3,171 (65%)
Puts: 1,704 (35%)
Prior (07/20) 6,842
Calls: 5,140 (75%)
Puts: 1,702 (25%)
Current vs Prior -28.75%
Prior 7-Day Total 125,250
Calls: 89,937 (72%)
Puts: 35,313 (28%)
Prior 7-Day Average 17,892
Calls: 12,848 (72%)
Puts: 5,044 (28%)
Current vs Prior 7-Day Avg -72.75%
Sentiment BEARISH

Expected Move

Detail
ℹ
Expiry (07/24) | Next (07/31)Expiry (08/21) | Next (09/18)
Current 3.62% | 8.20%10.71% | 14.79%
Prior 3.87% | 7.55%11.10% | 13.80%
Current vs Prior -6.29% | +8.52%-3.58% | +7.16%
Prior 7-Day Avg 4.21% | 6.51%4.74% | 12.64%
Current vs 7-Day Avg -13.92% | +25.97%+125.64% | +17.05%
Prior 7-Day Eod 3.87% | 7.55%11.10% | 13.80%
Current vs 7-Day Eod -6.29% | +8.52%-3.58% | +7.16%
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 bullish conviction with 85% of dollar volume in calls ($576.6K) vs puts ($100.7K). Elevated premium activity with dollar volume up 54% vs prior. Below-average activity with volume down 49% vs prior. P/C ratio rising 276% - increased hedging/bearish positioning.

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 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 0.68, highest 0.89)

CALLS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$190.00Jul 2411.6014.80$13.2024.2%30.89--
$180.00Jul 2421.5025.20$23.3515.8%10.89--
$180.00Aug 2824.7028.30$26.5013.6%10.83--
$195.00Jul 246.9010.60$8.7542.3%20.7935
$190.00Jul 3113.6017.50$15.5525.1%30.77--
PUTS (1)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$210.00Jul 3110.4012.60$11.5019.1%10.6218

Most actively traded options today. High liquidity = easy entry/exit. 51 active (total vol 221, top 40)

CALLS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$202.50Jul 241.255.30$3.28123.5%260.5454
$205.00Jul 240.604.10$2.35148.9%240.42534
$195.00Aug 1413.0016.00$14.5020.7%120.6610
$220.00Jul 311.503.00$2.2566.7%100.22--
$225.00Aug 281.405.60$3.50120.0%100.24--
PUTS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$190.00Jul 240.001.10$0.55200.0%400.1020
$195.00Jul 240.002.50$1.25200.0%20.21--
$195.00Aug 72.506.40$4.4587.6%20.32162
$200.00Aug 74.508.20$6.3558.3%20.416
$190.00Aug 143.306.00$4.6558.1%20.283

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 13 strikes (avg 40.7%, max 174.7%)

CALLS (5)
StrikeNear ExpFar ExpNear IVFar IVBack%VolOI
$180.00Jul 24Aug 28111.8%40.7%174.7%2--
$190.00Jul 24Aug 2860.4%40.2%50.4%43
$225.00Jul 31Aug 2858.7%41.2%42.5%1110
$195.00Jul 24Aug 2857.7%42.5%35.9%335
$220.00Jul 31Aug 2156.9%42.9%32.5%11--
PUTS (5)
StrikeNear ExpFar ExpNear IVFar IVBack%VolOI
$190.00Jul 24Aug 2160.4%39.5%52.9%4220
$200.00Jul 31Aug 2155.1%41.8%32.1%213
$187.50Jul 31Aug 761.0%48.7%25.3%2--
$195.00Jul 24Aug 757.7%46.6%23.7%4162
$197.50Jul 24Aug 752.7%45.7%15.3%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 67.18, avg 5.36)

BULL CALL (5)
BuySellExpiryDebitMax GainMax LossR:RBE
$217.50$240.00Jul 24$0.33$22.17$0.3367.18$217.83
$225.00$230.00Aug 21$0.28$4.72$0.2816.86$225.28
$220.00$225.00Jul 31$0.65$4.35$0.656.69$220.65
$210.00$215.00Jul 24$0.73$4.27$0.735.85$210.73
$225.00$230.00Jul 31$1.10$3.90$1.103.55$226.10
BEAR PUT (5)
BuySellExpiryDebitMax GainMax LossR:RBE
$192.50$190.00Jul 24$0.15$2.35$0.1515.67$192.35
$197.50$195.00Jul 24$0.35$2.15$0.356.14$197.15
$187.50$182.50Jul 31$0.70$4.30$0.706.14$186.80
$190.00$180.00Aug 21$1.73$8.27$1.734.78$188.27
$195.00$192.50Jul 24$0.55$1.95$0.553.55$194.45

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 37 found (best R:R 8.09, avg 0.95)

BEAR CALL (5)
SellBuyExpiryCreditMax GainMax LossR:RBE
$190.00$195.00Jul 24$4.45$4.45$0.558.09$194.45
$195.00$200.00Jul 24$4.00$4.00$1.004.00$199.00
$180.00$190.00Aug 28$7.40$7.40$2.602.85$187.40
$190.00$195.00Aug 28$3.45$3.45$1.552.23$193.45
$190.00$202.50Jul 31$7.40$7.40$5.101.45$197.40
BULL PUT (5)
SellBuyExpiryCreditMax GainMax LossR:RBE
$210.00$200.00Jul 31$5.80$5.80$4.201.38$204.20
$200.00$197.50Aug 7$1.10$1.10$1.400.79$198.90
$200.00$190.00Aug 21$4.32$4.32$5.680.76$195.68
$197.50$195.00Aug 7$0.80$0.80$1.700.47$196.70
$200.00$190.00Aug 14$3.15$3.15$6.850.46$196.85

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 16 found (avg debit $3.06, cheapest $0.25)

CALLS (5)
StrikeNear ExpFar ExpNet DebitNear IVFar IV
$225.00Jul 31Aug 21$0.7858.7%38.4%
$230.00Jul 31Aug 14$1.7849.1%48.6%
$220.00Jul 31Aug 21$1.9756.9%42.9%
$190.00Jul 24Jul 31$2.3560.4%62.4%
$217.50Jul 24Jul 31$2.4056.3%57.4%
PUTS (5)
StrikeNear ExpFar ExpNet DebitNear IVFar IV
$187.50Jul 31Aug 7$0.2561.0%48.7%
$200.00Jul 31Aug 7$0.6555.1%45.9%
$195.00Jul 24Aug 7$3.2057.7%46.6%
$197.50Jul 24Aug 7$3.6552.7%45.7%
$190.00Jul 24Aug 14$4.1060.4%49.5%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 4 found (cheapest 4.92% of stock, avg 7.28%)

StrikeExpiryCall$Put$TotalBE LowBE HighCost%
$195.00Jul 24$8.75$1.25$10.00$185.00$205.004.92%
$190.00Jul 24$13.20$0.55$13.75$176.25$203.756.77%
$200.00Aug 7$9.55$6.35$15.90$184.10$215.907.83%
$200.00Aug 14$11.70$7.80$19.50$180.50$219.509.60%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 50 found (cheapest 0.47% of stock, avg 2.57%)

Call KPut KExpiryCall$Put$TotalBE LowBE High
$215.00$190.00Jul 24$0.40$0.55$0.95$189.05$215.95
$217.50$190.00Jul 24$0.43$0.55$0.98$189.02$218.48
$215.00$192.50Jul 24$0.40$0.70$1.10$191.40$216.10
$217.50$192.50Jul 24$0.43$0.70$1.13$191.37$218.63
$215.00$195.00Jul 24$0.40$1.25$1.65$193.35$216.65
$210.00$190.00Jul 24$1.13$0.55$1.68$188.32$211.68
$217.50$195.00Jul 24$0.43$1.25$1.68$193.32$219.18
$207.50$190.00Jul 24$1.20$0.55$1.75$188.25$209.25
$210.00$192.50Jul 24$1.13$0.70$1.83$190.67$211.83
$207.50$192.50Jul 24$1.20$0.70$1.90$190.60$209.40

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 44 found (best R:R 6.35, avg credit $3.66)

Put SpreadCall SpreadExpiryCreditMax LossR:RBE LowBE High
185/190195/200Aug 14$4.32$0.686.35$185.68$199.32
190/192195/200Jul 24$4.15$0.854.88$188.35$199.15
192/195200/202Jul 24$2.02$0.484.21$192.98$202.02
190/200202/210Aug 21$7.87$2.133.69$192.13$210.37
190/200210/220Aug 21$7.40$2.602.85$192.60$217.40
195/198200/202Jul 24$1.82$0.682.68$195.68$201.82
200/210225/230Jul 31$6.90$3.102.23$203.10$231.90
192/195205/208Jul 24$1.70$0.802.13$193.30$206.70
200/210215/218Jul 31$6.52$3.481.87$203.48$221.52
190/192200/202Jul 24$1.62$0.881.84$190.88$201.62

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 9 found (best R:R 16.86, cheapest $0.14)

CALLS (5)
LowMidHighExpiryDebitMax GainR:R
$215.00$217.50$220.00Jul 31$0.14$2.3616.86
$190.00$195.00$200.00Jul 24$0.45$4.5510.11
$190.00$195.00$200.00Aug 28$0.65$4.356.69
$200.00$202.50$205.00Jul 24$0.54$1.963.63
$220.00$225.00$230.00Aug 21$1.56$3.442.21
PUTS (3)
LowMidHighExpiryDebitMax GainR:R
$195.00$197.50$200.00Aug 7$0.30$2.207.33
$190.00$192.50$195.00Jul 24$0.40$2.105.25
$180.00$190.00$200.00Aug 21$2.59$7.412.86

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 33 found (best net $-0.75, 25 credits)

CALLS (5)
Buy KSell KRatioExpiryNetMax Gain
$190.00$202.501:2Jul 31-$0.75$11.75
$202.50$212.501:2Jul 31-$0.25$9.75
$210.00$220.001:2Aug 21-$1.14$8.86
$180.00$190.001:2Jul 24-$3.05$6.95
$220.00$225.001:2Aug 21-$0.54$4.46
PUTS (5)
Buy KSell KRatioExpiryNetMax Gain
$190.00$180.001:2Aug 21-$0.42$9.58
$200.00$190.001:2Aug 14-$1.50$8.50
$195.00$187.501:2Aug 7-$0.65$6.85
$187.50$182.501:2Jul 31-$0.90$4.10
$190.00$185.001:2Aug 14-$1.61$3.39

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 13 found (best yield 3.20%, avg 0.90%)

StrikeExpiryBidDeltaOTM%Yield%If Called%VolOI
$210.00Aug 21$6.500.423.4%3.20%6.57%5--
$212.50Jul 31$3.100.344.6%1.53%6.12%2--
$220.00Aug 21$2.650.288.3%1.30%9.59%1--
$215.00Jul 31$2.500.305.8%1.23%7.06%118
$217.50Jul 31$1.850.267.1%0.91%7.97%336
$225.00Aug 21$1.550.2010.8%0.76%11.51%2--
$220.00Jul 31$1.500.228.3%0.74%9.03%10--
$225.00Aug 28$1.400.2410.8%0.69%11.44%10--
$230.00Aug 14$1.350.1813.2%0.66%13.88%22
$205.00Jul 24$0.600.420.9%0.30%1.20%24534

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 306
Total Puts 260
Put/Call Ratio 0.85
Net Difference 46

Prior's Put/Call Breakdown

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

Prior 7-Day Put/Call Summary

Total Calls 16,081
Total Puts 4,936
Average Put/Call Ratio 0.39
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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