Tour v422
CSGP
COSTAR GROUP INC
$29.17 +5.46%
$29.58 (+1.41%)🌙
as of 07/27 06:00 PM
(7/27 14:05) ◀
|
Monday, July 27, 2026 (6:00pm)
January 2026
|
▶ (7/28 14:05)
◀ 7/27 18:00 ▶

Option Volume

Detail
ℹ
Current (07/27) 3,988
Calls: 1,994 (50%)
Puts: 1,994 (50%)
Prior (07/24) 412
Calls: 204 (50%)
Puts: 208 (50%)
Current vs Prior +867.96%
Calls: +877.45% (Calls)
Puts: +858.65% (Puts)
Prior 7-Day Total 10,793
Calls: 5,118 (47%)
Puts: 5,675 (53%)
Prior 7-Day Average 1,541
Calls: 731 (47%)
Puts: 810 (53%)
Current vs Prior 7-Day Avg +158.65%
Calls: +172.72%
Puts: +145.96%
Sentiment NEUTRAL

Dollar Volume

Detail
ℹ
Current (07/27) $724.4K
Calls: $381.0K (53%)
Puts: $343.5K (47%)
Prior (07/24) $164.1K
Calls: $49.9K (30%)
Puts: $114.2K (70%)
Current vs Prior +341.48%
Calls: +663.49%
Puts: +200.78%
Prior 7-Day Total $2.74M
Calls: $908.2K (33%)
Puts: $1.83M (67%)
Prior 7-Day Average $391.3K
Calls: $129.7K (33%)
Puts: $261.6K (67%)
Current vs Prior 7-Day Avg +85.12%
Calls: +193.64%
Puts: +31.31%
Sentiment BULLISH

Put/Call Ratio

Detail
ℹ
Current (07/27) 1.00
Prior (07/24) 1.02
Current vs Prior -1.92%
Prior 7-Day Average 1.47
Current vs Prior 7-Day Avg -32.06%
Sentiment NEUTRAL

Open Interest

Detail
ℹ
Current (07/27) 55,208
Calls: 39,190 (71%)
Puts: 16,018 (29%)
Prior (07/24) 14,036
Calls: 6,761 (48%)
Puts: 7,275 (52%)
Current vs Prior +293.33%
Prior 7-Day Total 113,232
Calls: 67,005 (59%)
Puts: 46,227 (41%)
Prior 7-Day Average 16,176
Calls: 9,572 (59%)
Puts: 6,603 (41%)
Current vs Prior 7-Day Avg +241.30%
Sentiment BEARISH

Expected Move

Detail
ℹ
Expiry (08/21) | Next (09/18)
Current 16.28% | 20.50%
Prior 17.43% | 21.95%
Current vs Prior -6.55% | -6.58%
Prior 7-Day Avg 14.81% | 19.98%
Current vs 7-Day Avg +9.97% | +2.62%
Prior 7-Day Eod 17.43% | 21.95%
Current vs 7-Day Eod -6.55% | -6.58%
Sentiment BULLISH

Relative Spread

Detail
ℹ
Expiry | Next
Current 8.54% | 6.68%
Calls: 9.09% | 6.90%
Puts: 8.00% | 6.45%
Prior 7.55% | 8.38%
Calls: 9.23% | 7.06%
Puts: 5.88% | 9.69%
Current vs Prior +13.11% | -20.29%
Prior 7-Day Avg 7.55% | 8.38%
Calls: 9.23% | 7.06%
Puts: 5.88% | 9.69%
Current vs 7-Day Avg +13.11% | -20.29%
Liquidity Pricy
+
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🤖 AI Insights

Massive premium surge with dollar volume up 341% vs prior. Dollar volume significantly above 7-day average (85% higher). Unusually high activity with volume up 868% vs prior - elevated interest. Volume explosion - 159% above 7-day average (3,988 vs avg 1,541).

Smart Money BULLISH
Retail Flow NEUTRAL
Overall BULLISH
Dollar Volume
Option Volume
Put/Call Ratio
Open Interest
Expected Move
Current BULLISH
Prior BEARISH
7-Day Avg BEARISH
Current NEUTRAL
Prior NEUTRAL
7-Day Avg NEUTRAL
Current NEUTRAL
Prior NEUTRAL
7-Day Avg NEUTRAL
Current BULLISH
Prior NEUTRAL
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. 3 found (avg delta 0.70, highest 0.79)

CALLS (1)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$25.00Aug 214.505.60$5.0521.8%120.79239
PUTS (2)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$35.00Aug 215.906.80$6.3514.2%10.78218
$30.00Aug 212.652.95$2.8010.7%140.522.0K

Most actively traded options today. High liquidity = easy entry/exit. 7 active (total vol 1.8K, top 1.5K)

CALLS (3)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$30.00Aug 211.852.05$1.9510.3%940.48454
$35.00Aug 210.600.75$0.6822.1%710.21797
$25.00Aug 214.505.60$5.0521.8%120.79239
PUTS (4)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$25.00Aug 210.700.90$0.8025.0%1.5K0.21929
$22.50Aug 210.300.45$0.3839.5%510.11205
$30.00Aug 212.652.95$2.8010.7%140.522.0K
$35.00Aug 215.906.80$6.3514.2%10.78218

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

No setups found for this strategy

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 4 found (best R:R 4.95, avg 2.50)

BULL CALL (2)
BuySellExpiryDebitMax GainMax LossR:RBE
$30.00$35.00Aug 21$1.27$3.73$1.272.94$31.27
$25.00$30.00Aug 21$3.10$1.90$3.100.61$28.10
BEAR PUT (2)
BuySellExpiryDebitMax GainMax LossR:RBE
$25.00$22.50Aug 21$0.42$2.08$0.424.95$24.58
$30.00$25.00Aug 21$2.00$3.00$2.001.50$28.00

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 5 found (best R:R 2.45, avg 1.06)

BEAR CALL (2)
SellBuyExpiryCreditMax GainMax LossR:RBE
$25.00$30.00Aug 21$3.10$3.10$1.901.63$28.10
$30.00$35.00Aug 21$1.27$1.27$3.730.34$31.27
BULL PUT (3)
SellBuyExpiryCreditMax GainMax LossR:RBE
$35.00$30.00Aug 21$3.55$3.55$1.452.45$31.45
$30.00$25.00Aug 21$2.00$2.00$3.000.67$28.00
$25.00$22.50Aug 21$0.42$0.42$2.080.20$24.58

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

No setups found for this strategy

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 3 found (cheapest 16.28% of stock, avg 20.14%)

StrikeExpiryCall$Put$TotalBE LowBE HighCost%
$30.00Aug 21$1.95$2.80$4.75$25.25$34.7516.28%
$25.00Aug 21$5.05$0.80$5.85$19.15$30.8520.05%
$35.00Aug 21$0.68$6.35$7.03$27.97$42.0324.10%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 4 found (cheapest 3.63% of stock, avg 6.53%)

Call KPut KExpiryCall$Put$TotalBE LowBE High
$35.00$22.50Aug 21$0.68$0.38$1.06$21.44$36.06
$35.00$25.00Aug 21$0.68$0.80$1.48$23.52$36.48
$30.00$22.50Aug 21$1.95$0.38$2.33$20.17$32.33
$30.00$25.00Aug 21$1.95$0.80$2.75$22.25$32.75

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 1 found (best R:R 0.51, avg credit $1.69)

Put SpreadCall SpreadExpiryCreditMax LossR:RBE LowBE High
22/2530/35Aug 21$1.69$3.310.51$23.31$31.69

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 2 found (best R:R 2.23, cheapest $1.55)

CALLS (1)
LowMidHighExpiryDebitMax GainR:R
$25.00$30.00$35.00Aug 21$1.83$3.171.73
PUTS (1)
LowMidHighExpiryDebitMax GainR:R
$25.00$30.00$35.00Aug 21$1.55$3.452.23

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 5 found (best net $0.59, -- credits)

CALLS (2)
Buy KSell KRatioExpiryNetMax Gain
$30.00$35.001:2Aug 21$0.59$4.41
$25.00$30.001:2Aug 21$1.15$3.85
PUTS (3)
Buy KSell KRatioExpiryNetMax Gain
$35.00$30.001:2Aug 21$0.75$4.25
$30.00$25.001:2Aug 21$1.20$3.80
$25.00$22.501:2Aug 21$0.04$2.46

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 2 found (best yield 6.34%, avg 4.20%)

StrikeExpiryBidDeltaOTM%Yield%If Called%VolOI
$30.00Aug 21$1.850.482.9%6.34%9.19%94454
$35.00Aug 21$0.600.2120.0%2.06%22.04%71797

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 1,994
Total Puts 1,994
Put/Call Ratio 1.00
Net Difference --

Prior's Put/Call Breakdown

Total Calls 204
Total Puts 208
Put/Call Ratio 1.02
Net Difference -4

Prior 7-Day Put/Call Summary

Total Calls 5,118
Total Puts 5,675
Average Put/Call Ratio 1.47
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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