Tour v477
MRK
MERCK & CO. INC.
$130.20 +0.32%
$131.00 (+0.61%)🌙
as of 07/31 06:53 PM
(7/30 19:10) ◀
|
Friday, July 31, 2026 (6:53pm)
January 2026
|
▶ (8/3 14:10)
◀ 7/31 18:53 ▶

Option Volume

Detail
ℹ
Current (07/31) 10,717
Calls: 6,174 (58%)
Puts: 4,543 (42%)
Prior (07/30) 8,712
Calls: 4,673 (54%)
Puts: 4,039 (46%)
Current vs Prior +23.01%
Calls: +32.12% (Calls)
Puts: +12.48% (Puts)
Prior 7-Day Total 170,689
Calls: 129,563 (76%)
Puts: 41,126 (24%)
Prior 7-Day Average 24,384
Calls: 18,509 (76%)
Puts: 5,875 (24%)
Current vs Prior 7-Day Avg -56.05%
Calls: -66.64%
Puts: -22.67%
Sentiment BULLISH

Dollar Volume

Detail
ℹ
Current (07/31) $3.44M
Calls: $2.34M (68%)
Puts: $1.10M (32%)
Prior (07/30) $3.83M
Calls: $2.33M (61%)
Puts: $1.51M (39%)
Current vs Prior -10.21%
Calls: +0.66%
Puts: -27.01%
Prior 7-Day Total $40.33M
Calls: $28.46M (71%)
Puts: $11.87M (29%)
Prior 7-Day Average $5.76M
Calls: $4.07M (71%)
Puts: $1.70M (29%)
Current vs Prior 7-Day Avg -40.27%
Calls: -42.39%
Puts: -35.19%
Sentiment BULLISH

Put/Call Ratio

Detail
ℹ
Current (07/31) 0.74
Prior (07/30) 0.86
Current vs Prior -14.87%
Prior 7-Day Average 0.54
Current vs Prior 7-Day Avg +37.40%
Sentiment NEUTRAL

Open Interest

Detail
ℹ
Current (07/31) 282,201
Calls: 158,639 (56%)
Puts: 123,562 (44%)
Prior (07/30) 245,941
Calls: 148,778 (60%)
Puts: 97,163 (40%)
Current vs Prior +14.74%
Prior 7-Day Total 1,670,050
Calls: 1,033,631 (62%)
Puts: 636,419 (38%)
Prior 7-Day Average 238,578
Calls: 147,661 (62%)
Puts: 90,917 (38%)
Current vs Prior 7-Day Avg +18.28%
Sentiment BEARISH

Expected Move

Detail
ℹ
Expiry (07/31) | Next (08/07)Expiry (08/21) | Next (09/18)
Current 0.90% | 5.21%6.87% | 11.04%
Prior 1.90% | 5.43%7.01% | 11.09%
Current vs Prior +173.63% | +6.61%-2.07% | -0.45%
Prior 7-Day Avg 2.54% | 5.20%7.49% | 11.62%
Current vs 7-Day Avg +104.92% | +11.36%-8.38% | -4.95%
Prior 7-Day Eod 1.90% | 5.43%7.01% | 11.09%
Current vs 7-Day Eod +173.63% | +6.61%-2.07% | -0.45%
Sentiment BEARISHBULLISH

Relative Spread

Detail
ℹ
Expiry | Next
Current 24.70% | 10.94%
Calls: 17.93% | 12.45%
Puts: 31.48% | 9.43%
Prior 24.70% | 10.94%
Calls: 17.93% | 12.45%
Puts: 31.48% | 9.43%
Current vs Prior +0.00% | +0.00%
Prior 7-Day Avg 24.70% | 10.94%
Calls: 17.93% | 12.45%
Puts: 31.48% | 9.43%
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 ($2.34M).

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 NEUTRAL
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 9 of results (avg 8.3%, best 7.4%)

CALLS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$113.00Jul 3116.8518.15$17.507.4%60.8812
$105.00Jul 3124.3526.25$25.307.5%60.9021
$114.00Jul 3115.9017.25$16.588.1%40.887
$106.00Jul 3123.3525.35$24.358.2%70.9021
$116.00Jul 3114.0015.20$14.608.2%70.873
PUTS (0)
No puts meet the criteria

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. 70 found (avg delta 0.78, highest 1.00)

CALLS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$111.00Jul 3117.9520.30$19.1312.3%11.00--
$115.00Jul 3115.0016.30$15.658.3%61.006
$123.00Jul 316.108.70$7.4035.1%31.0014
$124.00Jul 315.657.45$6.5527.5%31.0021
$125.00Jul 314.755.95$5.3522.4%301.00332
PUTS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$138.00Jul 316.558.75$7.6528.8%60.99--
$135.00Jul 313.705.75$4.7243.4%10.991
$133.00Jul 312.002.97$2.4939.0%130.99--
$132.00Jul 311.002.09$1.5570.3%80.98--
$131.00Jul 310.011.26$0.64195.3%110.88158

Most actively traded options today. High liquidity = easy entry/exit. 222 active (total vol 7.0K, top 789)

CALLS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$130.00Aug 214.204.75$4.4712.3%5480.534.8K
$132.00Aug 72.272.74$2.5118.7%4770.43167
$132.00Sep 44.105.00$4.5519.8%4160.47--
$130.00Jul 310.250.80$0.53103.8%4101.00355
$130.00Aug 284.405.55$4.9723.1%2970.5223
PUTS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$130.00Jul 310.000.51$0.26196.2%7890.71945
$120.00Aug 210.781.12$0.9535.8%4260.163.3K
$125.00Jul 310.000.02$0.01200.0%1940.01659
$130.00Aug 213.654.20$3.9314.0%1410.47411
$128.00Aug 71.912.48$2.1926.0%860.37198

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 48 strikes (avg 1451.5%, max 4753.7%)

CALLS (5)
StrikeNear ExpFar ExpNear IVFar IVBack%VolOI
$110.00Jul 31Aug 211723.3%39.0%4313.2%6183
$144.00Jul 31Aug 211326.4%34.1%3785.7%57
$121.00Jul 31Sep 41066.3%32.7%3162.2%434
$120.00Jul 31Aug 211144.5%35.6%3112.9%18980
$119.00Jul 31Aug 211022.2%35.5%2780.5%4201
PUTS (5)
StrikeNear ExpFar ExpNear IVFar IVBack%VolOI
$114.00Jul 31Sep 41602.8%33.0%4753.7%418
$113.00Jul 31Aug 281678.4%35.5%4630.1%479
$110.00Jul 31Aug 211723.3%39.0%4313.2%412.6K
$116.00Jul 31Sep 111451.2%33.1%4287.5%448
$117.00Jul 31Sep 41375.1%34.8%3854.3%321

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 106 found (best R:R 17.18, avg 3.04)

BULL CALL (5)
BuySellExpiryDebitMax GainMax LossR:RBE
$140.00$142.00Aug 28$0.19$1.81$0.199.53$140.19
$140.00$142.00Aug 21$0.24$1.76$0.247.33$140.24
$140.00$141.00Sep 4$0.12$0.88$0.127.33$140.12
$136.00$138.00Aug 14$0.25$1.75$0.257.00$136.25
$142.00$144.00Aug 21$0.25$1.75$0.257.00$142.25
BEAR PUT (5)
BuySellExpiryDebitMax GainMax LossR:RBE
$117.00$115.00Aug 28$0.11$1.89$0.1117.18$116.89
$118.00$115.00Aug 21$0.18$2.82$0.1815.67$117.82
$115.00$110.00Aug 21$0.31$4.69$0.3115.13$114.69
$116.00$114.00Aug 7$0.16$1.84$0.1611.50$115.84
$123.00$122.00Sep 11$0.12$0.88$0.127.33$122.88

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 126 found (best R:R 12.33, avg 1.26)

BEAR CALL (5)
SellBuyExpiryCreditMax GainMax LossR:RBE
$122.00$124.00Aug 14$1.82$1.82$0.1810.11$123.82
$129.00$130.00Jul 31$0.90$0.90$0.109.00$129.90
$123.00$125.00Aug 7$1.78$1.78$0.228.09$124.78
$110.00$119.00Aug 21$7.97$7.97$1.037.74$117.97
$123.00$124.00Jul 31$0.85$0.85$0.155.67$123.85
BULL PUT (5)
SellBuyExpiryCreditMax GainMax LossR:RBE
$130.00$128.00Aug 14$1.85$1.85$0.1512.33$128.15
$114.00$113.00Aug 28$0.83$0.83$0.174.88$113.17
$135.00$134.00Aug 21$0.80$0.80$0.204.00$134.20
$132.00$131.00Aug 7$0.75$0.75$0.253.00$131.25
$127.00$126.00Aug 14$0.75$0.75$0.253.00$126.25

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 41 found (avg debit $1.35, cheapest $0.06)

CALLS (5)
StrikeNear ExpFar ExpNet DebitNear IVFar IV
$121.00Jul 31Aug 7$0.131066.3%47.6%
$142.00Jul 31Aug 7$0.28442.2%43.5%
$136.00Jul 31Aug 7$0.37816.6%48.7%
$140.00Jul 31Aug 7$0.39408.8%41.5%
$110.00Jul 31Aug 21$0.401723.3%39.0%
PUTS (5)
StrikeNear ExpFar ExpNet DebitNear IVFar IV
$115.00Aug 21Aug 28$0.0638.7%34.0%
$118.00Aug 14Aug 21$0.1538.7%35.8%
$119.00Aug 28Sep 4$0.3431.5%32.2%
$123.00Jul 31Aug 7$0.61410.1%43.8%
$134.00Aug 21Sep 4$0.7435.6%32.8%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 56 found (cheapest 0.54% of stock, avg 8.04%)

StrikeExpiryCall$Put$TotalBE LowBE HighCost%
$131.00Jul 31$0.06$0.64$0.70$130.30$131.700.54%
$130.00Jul 31$0.53$0.26$0.79$129.21$130.790.61%
$129.00Jul 31$1.43$0.08$1.51$127.49$130.511.16%
$132.00Jul 31$0.01$1.55$1.56$130.44$133.561.20%
$128.00Jul 31$2.40$0.05$2.45$125.55$130.451.88%
$133.00Jul 31$0.01$2.49$2.50$130.50$135.501.92%
$126.00Jul 31$4.63$0.01$4.64$121.36$130.643.56%
$127.00Jul 31$3.59$1.07$4.66$122.34$131.663.58%
$135.00Jul 31$0.01$4.72$4.73$130.27$139.733.63%
$125.00Jul 31$5.35$0.01$5.36$119.64$130.364.12%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 165 found (cheapest 0.11% of stock, avg 3.81%)

Call KPut KExpiryCall$Put$TotalBE LowBE High
$131.00$129.00Jul 31$0.06$0.08$0.14$128.86$131.14
$131.00$127.00Jul 31$0.06$1.07$1.13$125.87$132.13
$131.00$122.00Jul 31$0.06$1.07$1.13$120.87$132.13
$131.00$121.00Jul 31$0.06$1.07$1.13$119.87$132.13
$131.00$120.00Jul 31$0.06$1.07$1.13$118.87$132.13
$136.00$129.00Jul 31$1.07$0.08$1.15$127.85$137.15
$139.00$129.00Jul 31$1.07$0.08$1.15$127.85$140.15
$144.00$129.00Jul 31$1.07$0.08$1.15$127.85$145.15
$150.00$129.00Jul 31$1.07$0.08$1.15$127.85$151.15
$136.00$127.00Jul 31$1.07$1.07$2.14$124.86$138.14

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 223 found (best R:R 12.33, avg credit $1.25)

Put SpreadCall SpreadExpiryCreditMax LossR:RBE LowBE High
123/125127/129Aug 14$1.85$0.1512.33$123.15$128.85
118/120127/129Aug 14$1.84$0.1611.50$118.16$128.84
129/130131/132Aug 7$0.88$0.127.33$129.12$131.88
120/121129/130Aug 21$0.88$0.127.33$120.12$129.88
125/126129/130Aug 14$0.87$0.136.69$125.13$129.87
120/121130/131Aug 7$0.86$0.146.14$120.14$130.86
120/121135/136Sep 4$0.86$0.146.14$120.14$135.86
113/114128/130Aug 28$1.71$0.295.90$112.29$129.71
123/124130/131Aug 7$0.84$0.165.25$123.16$130.84
132/134135/136Sep 4$1.68$0.325.25$132.32$136.68

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 50 found (best R:R 19.00, cheapest $0.05)

CALLS (5)
LowMidHighExpiryDebitMax GainR:R
$119.00$120.00$121.00Jul 31$0.05$0.9519.00
$128.00$129.00$130.00Jul 31$0.07$0.9313.29
$134.00$135.00$136.00Aug 7$0.09$0.9110.11
$138.00$139.00$140.00Aug 7$0.09$0.9110.11
$135.00$136.00$137.00Sep 11$0.12$0.887.33
PUTS (5)
LowMidHighExpiryDebitMax GainR:R
$121.00$122.00$123.00Aug 21$0.05$0.9519.00
$128.00$129.00$130.00Aug 21$0.07$0.9313.29
$115.00$117.00$119.00Aug 28$0.14$1.8613.29
$129.00$130.00$131.00Aug 21$0.11$0.898.09
$128.00$129.00$130.00Jul 31$0.15$0.855.67

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 77 found (best net $-1.07, 62 credits)

CALLS (5)
Buy KSell KRatioExpiryNetMax Gain
$144.00$150.001:2Jul 31-$1.07$4.93
$110.00$119.001:2Aug 21-$4.66$4.34
$150.00$155.001:2Jul 31-$1.07$3.93
$130.00$135.001:2Sep 11-$1.41$3.59
$133.00$137.001:2Aug 28-$0.65$3.35
PUTS (5)
Buy KSell KRatioExpiryNetMax Gain
$114.00$110.001:2Aug 7-$0.04$3.96
$120.00$116.001:2Aug 7-$0.19$3.81
$118.00$115.001:2Aug 21-$0.29$2.71
$125.00$122.001:2Sep 4-$0.74$2.26
$120.00$117.001:2Jul 31-$1.07$1.93

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 49 found (best yield 3.57%, avg 1.41%)

StrikeExpiryBidDeltaOTM%Yield%If Called%VolOI
$131.00Sep 4$4.650.500.6%3.57%4.19%3--
$132.00Sep 4$4.100.471.4%3.15%4.53%416--
$131.00Aug 28$4.000.480.6%3.07%3.69%19167
$131.00Aug 21$3.700.490.6%2.84%3.46%3494
$132.00Aug 28$3.350.451.4%2.57%3.96%222
$131.00Aug 14$3.200.460.6%2.46%3.07%331
$132.00Aug 21$3.200.461.4%2.46%3.84%9172
$135.00Sep 11$3.150.393.7%2.42%6.11%6--
$133.00Aug 28$3.100.422.1%2.38%4.53%1--
$133.00Aug 21$2.900.422.1%2.23%4.38%20105

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 6,174
Total Puts 4,543
Put/Call Ratio 0.74
Net Difference 1,631

Prior's Put/Call Breakdown

Total Calls 4,673
Total Puts 4,039
Put/Call Ratio 0.86
Net Difference 634

Prior 7-Day Put/Call Summary

Total Calls 129,563
Total Puts 41,126
Average Put/Call Ratio 0.54
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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