Tour v477
CSGP
COSTAR GROUP INC
$28.76 -2.38%
$28.88 (+0.42%)🌙
as of 07/31 06:24 PM
(7/30 18:33) ◀
|
Friday, July 31, 2026 (6:24pm)
January 2026
|
▶ (8/3 18:21)
◀ 7/31 18:24 ▶

Option Volume

Detail
ℹ
Current (07/31) 1,639
Calls: 1,069 (65%)
Puts: 570 (35%)
Prior (07/30) 2,874
Calls: 846 (29%)
Puts: 2,028 (71%)
Current vs Prior -42.97%
Calls: +26.36% (Calls)
Puts: -71.89% (Puts)
Prior 7-Day Total 17,155
Calls: 8,438 (49%)
Puts: 8,717 (51%)
Prior 7-Day Average 2,450
Calls: 1,205 (49%)
Puts: 1,245 (51%)
Current vs Prior 7-Day Avg -33.12%
Calls: -11.32%
Puts: -54.23%
Sentiment BULLISH

Dollar Volume

Detail
ℹ
Current (07/31) $467.5K
Calls: $385.3K (82%)
Puts: $82.2K (18%)
Prior (07/30) $557.2K
Calls: $150.5K (27%)
Puts: $406.8K (73%)
Current vs Prior -16.10%
Calls: +156.08%
Puts: -79.79%
Prior 7-Day Total $3.40M
Calls: $1.66M (49%)
Puts: $1.74M (51%)
Prior 7-Day Average $485.9K
Calls: $237.0K (49%)
Puts: $248.9K (51%)
Current vs Prior 7-Day Avg -3.78%
Calls: +62.57%
Puts: -66.97%
Sentiment BULLISH

Put/Call Ratio

Detail
ℹ
Current (07/31) 0.53
Prior (07/30) 2.40
Current vs Prior -77.76%
Prior 7-Day Average 1.21
Current vs Prior 7-Day Avg -55.94%
Sentiment BULLISH

Open Interest

Detail
ℹ
Current (07/31) 30,844
Calls: 20,097 (65%)
Puts: 10,747 (35%)
Prior (07/30) 27,893
Calls: 18,631 (67%)
Puts: 9,262 (33%)
Current vs Prior +10.58%
Prior 7-Day Total 218,357
Calls: 147,869 (68%)
Puts: 70,488 (32%)
Prior 7-Day Average 31,193
Calls: 21,124 (68%)
Puts: 10,069 (32%)
Current vs Prior 7-Day Avg -1.12%
Sentiment BEARISH

Expected Move

Detail
ℹ
Expiry (08/21) | Next (09/18)
Current 12.00% | 17.39%
Prior 11.74% | 16.19%
Current vs Prior +2.14% | +7.37%
Prior 7-Day Avg 15.62% | 19.77%
Current vs 7-Day Avg -23.22% | -12.06%
Prior 7-Day Eod 11.74% | 16.19%
Current vs 7-Day Eod +2.14% | +7.37%
Sentiment BEARISH

Relative Spread

Detail
ℹ
Expiry | Next
Current 5.11% | 5.74%
Calls: 4.95% | 5.41%
Puts: 5.26% | 6.07%
Prior 5.11% | 5.74%
Calls: 4.95% | 5.41%
Puts: 5.26% | 6.07%
Current vs Prior +0.00% | +0.00%
Prior 7-Day Avg 6.65% | 7.01%
Calls: 7.38% | 6.33%
Puts: 5.92% | 7.68%
Current vs 7-Day Avg -23.11% | -18.07%
Liquidity Pricy
+
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🤖 AI Insights

Strong bullish conviction with 82% of dollar volume in calls ($385.3K) vs puts ($82.2K). Below-average activity with volume down 43% vs prior. Bullish P/C ratio of 0.53. P/C ratio dropping 78% - 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 BEARISH
7-Day Avg BEARISH
Current BULLISH
Prior BEARISH
7-Day Avg NEUTRAL
Current BULLISH
Prior BEARISH
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. 2 found (avg delta 0.74, highest 0.90)

CALLS (0)
No calls meet the criteria
PUTS (2)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$35.00Aug 216.106.90$6.5012.3%100.90227
$30.00Aug 212.102.40$2.2513.3%110.582.3K

Most actively traded options today. High liquidity = easy entry/exit. 6 active (total vol 461, top 273)

CALLS (2)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$30.00Aug 211.001.40$1.2033.3%650.43676
$35.00Aug 210.150.30$0.2268.2%20.11--
PUTS (4)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$25.00Aug 210.300.45$0.3839.5%2730.152.3K
$22.50Aug 210.100.20$0.1566.7%1000.06323
$30.00Aug 212.102.40$2.2513.3%110.582.3K
$35.00Aug 216.106.90$6.5012.3%100.90227

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. 3 found (best R:R 9.87, avg 5.21)

BULL CALL (1)
BuySellExpiryDebitMax GainMax LossR:RBE
$30.00$35.00Aug 21$0.98$4.02$0.984.10$30.98
BEAR PUT (2)
BuySellExpiryDebitMax GainMax LossR:RBE
$25.00$22.50Aug 21$0.23$2.27$0.239.87$24.77
$30.00$25.00Aug 21$1.87$3.13$1.871.67$28.13

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 4 found (best R:R 5.67, avg 1.65)

BEAR CALL (1)
SellBuyExpiryCreditMax GainMax LossR:RBE
$30.00$35.00Aug 21$0.98$0.98$4.020.24$30.98
BULL PUT (3)
SellBuyExpiryCreditMax GainMax LossR:RBE
$35.00$30.00Aug 21$4.25$4.25$0.755.67$30.75
$30.00$25.00Aug 21$1.87$1.87$3.130.60$28.13
$25.00$22.50Aug 21$0.23$0.23$2.270.10$24.77

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. 2 found (cheapest 12.00% of stock, avg 17.69%)

StrikeExpiryCall$Put$TotalBE LowBE HighCost%
$30.00Aug 21$1.20$2.25$3.45$26.55$33.4512.00%
$35.00Aug 21$0.22$6.50$6.72$28.28$41.7223.37%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 4 found (cheapest 1.29% of stock, avg 3.39%)

Call KPut KExpiryCall$Put$TotalBE LowBE High
$35.00$22.50Aug 21$0.22$0.15$0.37$22.13$35.37
$35.00$25.00Aug 21$0.22$0.38$0.60$24.40$35.60
$30.00$22.50Aug 21$1.20$0.15$1.35$21.15$31.35
$30.00$25.00Aug 21$1.20$0.38$1.58$23.42$31.58

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 1 found (best R:R 0.32, avg credit $1.21)

Put SpreadCall SpreadExpiryCreditMax LossR:RBE LowBE High
22/2530/35Aug 21$1.21$3.790.32$23.79$31.21

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 1 found (best R:R 1.10, cheapest $2.38)

CALLS (0)
No calls found
PUTS (1)
LowMidHighExpiryDebitMax GainR:R
$25.00$30.00$35.00Aug 21$2.38$2.621.10

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 4 found (best net $0.76, -- credits)

CALLS (1)
Buy KSell KRatioExpiryNetMax Gain
$30.00$35.001:2Aug 21$0.76$4.24
PUTS (3)
Buy KSell KRatioExpiryNetMax Gain
$30.00$25.001:2Aug 21$1.49$3.51
$35.00$30.001:2Aug 21$2.00$3.00
$25.00$22.501:2Aug 21$0.08$2.42

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 2 found (best yield 3.48%, avg 2.00%)

StrikeExpiryBidDeltaOTM%Yield%If Called%VolOI
$30.00Aug 21$1.000.434.3%3.48%7.79%65676
$35.00Aug 21$0.150.1121.7%0.52%22.22%2--

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 1,069
Total Puts 570
Put/Call Ratio 0.53
Net Difference 499

Prior's Put/Call Breakdown

Total Calls 846
Total Puts 2,028
Put/Call Ratio 2.40
Net Difference -1,182

Prior 7-Day Put/Call Summary

Total Calls 8,438
Total Puts 8,717
Average Put/Call Ratio 1.21
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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