Tour v490
MRK
MERCK & CO. INC.
$128.00 +0.18%
$128.21 (+0.16%)🌙
as of 08/04 06:07 PM
(8/4 16:00) ◀
|
Tuesday, August 4, 2026 (6:08pm)
January 2026
|
▶ (8/5 19:00)
◀ 8/4 18:08 ▶

Option Volume

Detail
ℹ
Current (08/04) 35,448
Calls: 26,667 (75%)
Puts: 8,781 (25%)
Prior (08/03) 29,720
Calls: 15,413 (52%)
Puts: 14,307 (48%)
Current vs Prior +19.27%
Calls: +73.02% (Calls)
Puts: -38.62% (Puts)
Prior 7-Day Total 127,687
Calls: 77,825 (61%)
Puts: 49,862 (39%)
Prior 7-Day Average 18,241
Calls: 11,117 (61%)
Puts: 7,123 (39%)
Current vs Prior 7-Day Avg +94.33%
Calls: +139.86%
Puts: +23.27%
Sentiment BULLISH

Dollar Volume

Detail
ℹ
Current (08/04) $6.57M
Calls: $4.33M (66%)
Puts: $2.23M (34%)
Prior (08/03) $9.24M
Calls: $5.31M (57%)
Puts: $3.93M (43%)
Current vs Prior -28.92%
Calls: -18.30%
Puts: -43.24%
Prior 7-Day Total $41.96M
Calls: $28.33M (68%)
Puts: $13.62M (32%)
Prior 7-Day Average $5.99M
Calls: $4.05M (68%)
Puts: $1.95M (32%)
Current vs Prior 7-Day Avg +9.56%
Calls: +7.09%
Puts: +14.69%
Sentiment BULLISH

Put/Call Ratio

Detail
ℹ
Current (08/04) 0.33
Prior (08/03) 0.93
Current vs Prior -64.53%
Prior 7-Day Average 0.73
Current vs Prior 7-Day Avg -54.74%
Sentiment BULLISH

Open Interest

Detail
ℹ
Current (08/04) 441,220
Calls: 241,760 (55%)
Puts: 199,460 (45%)
Prior (08/03) 429,090
Calls: 236,320 (55%)
Puts: 192,770 (45%)
Current vs Prior +2.83%
Prior 7-Day Total 1,894,520
Calls: 1,125,751 (59%)
Puts: 768,769 (41%)
Prior 7-Day Average 270,645
Calls: 160,821 (59%)
Puts: 109,824 (41%)
Current vs Prior 7-Day Avg +63.02%
Sentiment BEARISH

Expected Move

Detail
ℹ
Expiry (08/07) | Next (08/14)Expiry (08/21) | Next (09/18)
Current 2.92% | 4.66%5.52% | 10.61%
Prior 5.23% | 6.27%6.99% | 11.65%
Current vs Prior -44.11% | -25.60%-21.08% | -8.90%
Prior 7-Day Avg 3.45% | 5.81%7.15% | 11.38%
Current vs 7-Day Avg -15.30% | -19.68%-22.84% | -6.76%
Prior 7-Day Eod 5.23% | 6.27%6.99% | 11.65%
Current vs 7-Day Eod -44.11% | -25.60%-21.08% | -8.90%
Sentiment BULLISHBULLISH

Relative Spread

Detail
ℹ
Expiry | Next
Current 32.39% | 16.25%
Calls: 35.53% | 17.57%
Puts: 29.25% | 14.93%
Prior 11.96% | 10.64%
Calls: 10.20% | 11.03%
Puts: 13.72% | 10.26%
Current vs Prior +170.82% | +52.73%
Prior 7-Day Avg 22.88% | 10.90%
Calls: 16.83% | 12.25%
Puts: 28.94% | 9.55%
Current vs 7-Day Avg +41.56% | +49.12%
Liquidity Expensive
+
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🤖 AI Insights

Moderately bullish flow with 66% call dollar volume ($4.33M). Volume explosion - 94% above 7-day average (35,448 vs avg 18,241). Extreme bullish P/C ratio of 0.33 - heavy call buying (26,667 calls vs 8,781 puts). P/C ratio dropping 65% - sentiment shifting bullish.

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 BULLISH
Prior NEUTRAL
7-Day Avg NEUTRAL
Current NEUTRAL
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 15 of results (avg 8.2%, best 5.5%)

CALLS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$130.00Sep 184.404.65$4.535.5%5170.455.3K
$125.00Sep 187.007.45$7.236.2%400.603.0K
$115.00Aug 2113.1014.15$13.637.7%--0.93332
$110.00Sep 1818.5520.10$19.338.0%30.922.6K
$105.00Sep 1823.2025.15$24.178.1%--0.951.1K
PUTS (4)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$130.00Sep 186.156.55$6.356.3%700.54829
$120.00Sep 182.122.28$2.207.3%990.263.7K
$125.00Sep 183.754.10$3.938.9%620.401.7K
$145.00Sep 1816.3518.05$17.209.9%--0.8811

Affordable options under $1.00 per contract. Great for defined-risk strategies with minimal capital. 3 found (avg $0.73, cheapest $0.61)

CALLS (2)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$145.00Sep 180.700.80$0.7513.3%12.3K0.121.4K
$137.00Aug 210.750.90$0.8318.1%30.18216
PUTS (1)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$110.00Sep 180.560.65$0.6114.8%260.095.9K

In-the-money options with delta >0.50. Higher probability of profit, lower leverage. 98 found (avg delta 0.75, highest 1.00)

CALLS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$108.00Aug 719.7521.75$20.759.6%21.00--
$110.00Aug 717.2519.50$18.3812.2%11.003
$105.00Aug 2122.4524.70$23.589.5%--0.9913
$114.00Aug 713.3015.50$14.4015.3%--0.9912
$110.00Aug 2117.8519.75$18.8010.1%200.97704
PUTS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$150.00Aug 720.6022.95$21.7810.8%21.001
$145.00Aug 2115.1517.60$16.3815.0%--0.9516
$139.00Aug 78.9511.95$10.4528.7%--0.9513
$135.00Aug 75.857.45$6.6524.1%--0.9310
$150.00Sep 1820.5523.20$21.8812.1%--0.9210

Most actively traded options today. High liquidity = easy entry/exit. 224 active (total vol 30.4K, top 12.3K)

CALLS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$145.00Sep 180.700.80$0.7513.3%12.3K0.121.4K
$135.00Sep 182.522.84$2.6811.9%2.5K0.324.7K
$140.00Aug 210.340.49$0.4235.7%1.7K0.107.2K
$135.00Aug 211.121.31$1.2215.6%1.6K0.244.8K
$132.00Aug 70.400.71$0.5556.4%1.4K0.21706
PUTS (5)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$127.00Aug 71.011.63$1.3247.0%1.7K0.40250
$124.00Aug 70.270.59$0.4374.4%7680.171.1K
$121.00Aug 210.881.23$1.0633.0%3350.20125
$118.00Aug 70.010.34$0.18183.3%2720.06299
$128.00Aug 71.362.18$1.7746.3%2620.48372

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 57 strikes (avg 57.3%, max 173.7%)

CALLS (5)
StrikeNear ExpFar ExpNear IVFar IVBack%VolOI
$150.00Aug 7Sep 1866.3%30.7%116.3%503.2K
$110.00Aug 7Sep 1865.8%32.4%103.1%42.7K
$145.00Aug 7Sep 1859.4%29.7%100.0%12.4K2.0K
$141.00Aug 7Sep 456.2%30.7%83.2%12121
$120.00Aug 7Sep 1853.8%29.6%81.7%142.8K
PUTS (5)
StrikeNear ExpFar ExpNear IVFar IVBack%VolOI
$113.00Aug 7Aug 2891.2%33.3%173.7%1725
$105.00Aug 7Sep 1883.7%35.0%139.1%2403.9K
$150.00Aug 7Sep 1866.3%30.7%116.3%211
$110.00Aug 7Sep 1865.8%32.4%103.1%415.9K
$116.00Aug 7Sep 1159.9%29.8%100.9%39843

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 145 found (best R:R 44.45, avg 3.61)

BULL CALL (5)
BuySellExpiryDebitMax GainMax LossR:RBE
$145.00$150.00Aug 28$0.26$4.74$0.2618.23$145.26
$145.00$150.00Sep 18$0.32$4.68$0.3214.62$145.32
$139.00$140.00Aug 7$0.11$0.89$0.118.09$139.11
$148.00$150.00Aug 7$0.22$1.78$0.228.09$148.22
$132.00$133.00Aug 14$0.11$0.89$0.118.09$132.11
BEAR PUT (5)
BuySellExpiryDebitMax GainMax LossR:RBE
$110.00$105.00Aug 21$0.11$4.89$0.1144.45$109.89
$115.00$110.00Aug 21$0.20$4.80$0.2024.00$114.80
$110.00$105.00Sep 18$0.27$4.73$0.2717.52$109.73
$119.00$110.00Sep 4$0.66$8.34$0.6612.64$118.34
$117.00$115.00Aug 21$0.15$1.85$0.1512.33$116.85

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 187 found (best R:R 30.25, avg 1.87)

BEAR CALL (5)
SellBuyExpiryCreditMax GainMax LossR:RBE
$105.00$110.00Sep 18$4.84$4.84$0.1630.25$109.84
$110.00$114.00Aug 14$3.83$3.83$0.1722.53$113.83
$105.00$110.00Aug 21$4.78$4.78$0.2221.73$109.78
$114.00$118.00Aug 7$3.72$3.72$0.2813.29$117.72
$110.00$120.00Aug 28$9.02$9.02$0.989.20$119.02
BULL PUT (5)
SellBuyExpiryCreditMax GainMax LossR:RBE
$139.00$135.00Aug 7$3.80$3.80$0.2019.00$135.20
$150.00$145.00Sep 18$4.68$4.68$0.3214.62$145.32
$124.00$123.00Aug 28$0.88$0.88$0.127.33$123.12
$132.00$131.00Aug 7$0.87$0.87$0.136.69$131.13
$135.00$133.00Aug 7$1.70$1.70$0.305.67$133.30

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 56 found (avg debit $0.68, cheapest $0.07)

CALLS (5)
StrikeNear ExpFar ExpNet DebitNear IVFar IV
$150.00Aug 7Aug 21$0.0766.3%35.7%
$110.00Aug 7Aug 14$0.1065.8%81.8%
$140.00Aug 7Aug 14$0.1749.4%35.2%
$143.00Aug 7Aug 21$0.1857.1%31.8%
$145.00Aug 7Aug 14$0.2359.4%47.2%
PUTS (5)
StrikeNear ExpFar ExpNet DebitNear IVFar IV
$118.00Aug 7Aug 14$0.1059.9%36.1%
$150.00Aug 7Sep 18$0.1066.3%30.7%
$110.00Aug 7Aug 21$0.1365.8%39.5%
$115.00Aug 7Aug 14$0.3450.7%47.3%
$119.00Aug 7Aug 14$0.3560.7%41.9%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 89 found (cheapest 2.89% of stock, avg 8.10%)

StrikeExpiryCall$Put$TotalBE LowBE HighCost%
$129.00Aug 7$1.58$2.12$3.70$125.30$132.702.89%
$128.00Aug 7$1.97$1.77$3.74$124.26$131.742.92%
$127.00Aug 7$2.51$1.32$3.83$123.17$130.832.99%
$130.00Aug 7$1.05$2.81$3.86$126.14$133.863.02%
$126.00Aug 7$3.19$0.88$4.07$121.93$130.073.18%
$131.00Aug 7$0.74$3.43$4.17$126.83$135.173.26%
$125.00Aug 7$3.95$0.59$4.54$120.46$129.543.55%
$132.00Aug 7$0.55$4.30$4.85$127.15$136.853.79%
$124.00Aug 7$4.70$0.43$5.13$118.87$129.134.01%
$133.00Aug 7$0.34$4.95$5.29$127.71$138.294.13%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 170 found (cheapest 0.67% of stock, avg 3.54%)

Call KPut KExpiryCall$Put$TotalBE LowBE High
$134.00$124.00Aug 7$0.43$0.43$0.86$123.14$134.86
$132.00$124.00Aug 7$0.55$0.43$0.98$123.02$132.98
$134.00$125.00Aug 7$0.43$0.59$1.02$123.98$135.02
$150.00$110.00Sep 18$0.43$0.61$1.04$108.96$151.04
$132.00$125.00Aug 7$0.55$0.59$1.14$123.86$133.14
$131.00$124.00Aug 7$0.74$0.43$1.17$122.83$132.17
$134.00$126.00Aug 7$0.43$0.88$1.31$124.69$135.31
$131.00$125.00Aug 7$0.74$0.59$1.33$123.67$132.33
$145.00$110.00Sep 18$0.75$0.61$1.36$108.64$146.36
$132.00$126.00Aug 7$0.55$0.88$1.43$124.57$133.43

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 225 found (best R:R 35.36, avg credit $1.32)

Put SpreadCall SpreadExpiryCreditMax LossR:RBE LowBE High
110/111114/118Aug 7$3.89$0.1135.36$107.11$117.89
118/119121/123Aug 14$1.88$0.1215.67$117.12$122.88
125/128139/140Sep 4$2.77$0.2312.04$125.23$141.77
113/114120/122Aug 28$1.83$0.1710.76$112.17$121.83
130/131132/133Sep 4$0.90$0.109.00$130.10$132.90
121/122127/129Sep 11$1.80$0.209.00$120.20$128.80
129/131132/133Sep 11$1.80$0.209.00$129.20$133.80
117/118120/122Aug 28$1.79$0.218.52$116.21$121.79
118/119120/122Aug 28$1.79$0.218.52$117.21$121.79
115/116121/123Aug 14$1.78$0.228.09$114.22$122.78

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 97 found (best R:R 54.56, cheapest $0.05)

CALLS (5)
LowMidHighExpiryDebitMax GainR:R
$115.00$120.00$125.00Sep 18$0.18$4.8226.78
$132.00$133.00$134.00Aug 21$0.05$0.9519.00
$118.00$119.00$120.00Aug 7$0.06$0.9415.67
$130.00$131.00$132.00Aug 14$0.06$0.9415.67
$133.00$134.00$135.00Aug 21$0.06$0.9415.67
PUTS (5)
LowMidHighExpiryDebitMax GainR:R
$105.00$110.00$115.00Aug 21$0.09$4.9154.56
$124.00$125.00$126.00Aug 14$0.05$0.9519.00
$105.00$110.00$115.00Sep 18$0.28$4.7216.86
$114.00$115.00$116.00Aug 7$0.07$0.9313.29
$123.00$124.00$125.00Aug 21$0.07$0.9313.29

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 121 found (best net $-0.86, 106 credits)

CALLS (5)
Buy KSell KRatioExpiryNetMax Gain
$110.00$120.001:2Aug 28-$0.86$9.14
$145.00$150.001:2Aug 21$0.00$5.00
$140.00$145.001:2Sep 18$0.00$5.00
$145.00$150.001:2Sep 18-$0.11$4.89
$140.00$145.001:2Aug 14-$0.30$4.70
PUTS (5)
Buy KSell KRatioExpiryNetMax Gain
$115.00$105.001:2Aug 14-$1.78$8.22
$129.00$123.001:2Sep 11-$0.18$5.82
$115.00$110.001:2Sep 18-$0.06$4.94
$110.00$105.001:2Sep 18-$0.07$4.93
$120.00$115.001:2Sep 18-$0.12$4.88

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 71 found (best yield 3.44%, avg 1.25%)

StrikeExpiryBidDeltaOTM%Yield%If Called%VolOI
$130.00Sep 18$4.400.451.6%3.44%5.00%5175.3K
$129.00Sep 11$4.350.510.8%3.40%4.18%1--
$130.00Sep 11$3.900.481.6%3.05%4.61%91
$128.00Aug 28$3.850.530.0%3.01%3.01%2829
$129.00Aug 28$3.550.490.8%2.77%3.55%--21
$131.00Sep 11$3.550.452.3%2.77%5.12%52
$130.00Sep 4$3.500.451.6%2.73%4.30%926
$128.00Sep 4$3.350.510.0%2.62%2.62%417
$128.00Aug 21$3.300.520.0%2.58%2.58%83384
$130.00Aug 28$3.250.451.6%2.54%4.10%8243

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 26,667
Total Puts 8,781
Put/Call Ratio 0.33
Net Difference 17,886

Prior's Put/Call Breakdown

Total Calls 15,413
Total Puts 14,307
Put/Call Ratio 0.93
Net Difference 1,106

Prior 7-Day Put/Call Summary

Total Calls 77,825
Total Puts 49,862
Average Put/Call Ratio 0.73
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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