Tour v381
CSGP
COSTAR GROUP INC
$28.50 -3.98%
$28.65 (+0.53%)🌙
as of 07/21 06:23 PM
(7/20 18:22) ◀
|
Tuesday, July 21, 2026 (6:23pm)
January 2026
|
▶ (7/22 19:02)
◀ 7/21 18:23 ▶

Option Volume

Detail
ℹ
Current (07/21) 2,202
Calls: 403 (18%)
Puts: 1,799 (82%)
Prior (07/20) 1,565
Calls: 952 (61%)
Puts: 613 (39%)
Current vs Prior +40.70%
Calls: -57.67% (Calls)
Puts: +193.47% (Puts)
Prior 7-Day Total 9,036
Calls: 4,161 (46%)
Puts: 4,875 (54%)
Prior 7-Day Average 1,290
Calls: 594 (46%)
Puts: 696 (54%)
Current vs Prior 7-Day Avg +70.58%
Calls: -32.20%
Puts: +158.32%
Sentiment BEARISH

Dollar Volume

Detail
ℹ
Current (07/21) $691.5K
Calls: $50.0K (7%)
Puts: $641.5K (93%)
Prior (07/20) $447.5K
Calls: $195.9K (44%)
Puts: $251.7K (56%)
Current vs Prior +54.52%
Calls: -74.45%
Puts: +154.91%
Prior 7-Day Total $2.67M
Calls: $1.00M (38%)
Puts: $1.67M (62%)
Prior 7-Day Average $381.4K
Calls: $143.1K (38%)
Puts: $238.2K (62%)
Current vs Prior 7-Day Avg +81.33%
Calls: -65.04%
Puts: +169.27%
Sentiment BEARISH

Put/Call Ratio

Detail
ℹ
Current (07/21) 4.46
Prior (07/20) 0.64
Current vs Prior +593.27%
Prior 7-Day Average 1.26
Current vs Prior 7-Day Avg +254.34%
Sentiment BEARISH

Open Interest

Detail
ℹ
Current (07/21) 14,584
Calls: 8,998 (62%)
Puts: 5,586 (38%)
Prior (07/20) 17,189
Calls: 9,693 (56%)
Puts: 7,496 (44%)
Current vs Prior -15.16%
Prior 7-Day Total 108,943
Calls: 59,603 (55%)
Puts: 49,340 (45%)
Prior 7-Day Average 15,563
Calls: 8,514 (55%)
Puts: 7,048 (45%)
Current vs Prior 7-Day Avg -6.29%
Sentiment BEARISH

Expected Move

Detail
ℹ
Expiry (08/21) | Next (09/18)
Current 16.95% | 20.35%
Prior 16.07% | 19.64%
Current vs Prior +5.45% | +3.60%
Prior 7-Day Avg 9.14% | 18.08%
Current vs 7-Day Avg +85.47% | +12.58%
Prior 7-Day Eod 16.07% | 19.64%
Current vs 7-Day Eod +5.45% | +3.60%
Sentiment BEARISH

Relative Spread

Detail
ℹ
Expiry | Next
Current 7.55% | 8.38%
Calls: 9.23% | 7.06%
Puts: 5.88% | 9.69%
Prior 7.55% | 8.38%
Calls: 9.23% | 7.06%
Puts: 5.88% | 9.69%
Current vs Prior +0.00% | +0.00%
Prior 7-Day Avg 7.55% | 8.38%
Calls: 9.23% | 7.06%
Puts: 5.88% | 9.69%
Current vs 7-Day Avg +0.00% | +0.00%
Liquidity Expensive
+
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🤖 AI Insights

Strong bearish conviction with 93% of dollar volume in puts ($641.5K) vs calls ($50.0K). Elevated premium activity with dollar volume up 55% vs prior. Dollar volume significantly above 7-day average (81% higher). Extreme bearish P/C ratio of 4.46 - heavy put buying.

Smart Money BEARISH
Retail Flow BEARISH
Overall BEARISH
Dollar Volume
Option Volume
Put/Call Ratio
Open Interest
Expected Move
Current BEARISH
Prior BEARISH
7-Day Avg BEARISH
Current BEARISH
Prior BULLISH
7-Day Avg NEUTRAL
Current BEARISH
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 1 of results (avg 6.2%, best 6.2%)

CALLS (0)
No calls meet the criteria
PUTS (1)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$30.00Aug 213.103.30$3.206.2%1.5K0.57368

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 0.69, highest 0.81)

CALLS (0)
No calls meet the criteria
PUTS (2)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$35.00Aug 216.507.60$7.0515.6%10.81--
$30.00Aug 213.103.30$3.206.2%1.5K0.57368

Most actively traded options today. High liquidity = easy entry/exit. 6 active (total vol 1.7K, top 1.5K)

CALLS (2)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$35.00Aug 210.450.65$0.5536.4%430.18690
$30.00Aug 211.401.85$1.6327.6%380.43343
PUTS (4)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$30.00Aug 213.103.30$3.206.2%1.5K0.57368
$25.00Aug 210.700.95$0.8330.1%480.23905
$22.50Aug 210.250.45$0.3557.1%110.11178
$35.00Aug 216.507.60$7.0515.6%10.81--

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 4.21, avg 2.98)

BULL CALL (1)
BuySellExpiryDebitMax GainMax LossR:RBE
$30.00$35.00Aug 21$1.08$3.92$1.083.63$31.08
BEAR PUT (2)
BuySellExpiryDebitMax GainMax LossR:RBE
$25.00$22.50Aug 21$0.48$2.02$0.484.21$24.52
$30.00$25.00Aug 21$2.37$2.63$2.371.11$27.63

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 4 found (best R:R 3.35, avg 1.19)

BEAR CALL (1)
SellBuyExpiryCreditMax GainMax LossR:RBE
$30.00$35.00Aug 21$1.08$1.08$3.920.28$31.08
BULL PUT (3)
SellBuyExpiryCreditMax GainMax LossR:RBE
$35.00$30.00Aug 21$3.85$3.85$1.153.35$31.15
$30.00$25.00Aug 21$2.37$2.37$2.630.90$27.63
$25.00$22.50Aug 21$0.48$0.48$2.020.24$24.52

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 16.95% of stock, avg 21.81%)

StrikeExpiryCall$Put$TotalBE LowBE HighCost%
$30.00Aug 21$1.63$3.20$4.83$25.17$34.8316.95%
$35.00Aug 21$0.55$7.05$7.60$27.40$42.6026.67%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 4 found (cheapest 3.16% of stock, avg 5.90%)

Call KPut KExpiryCall$Put$TotalBE LowBE High
$35.00$22.50Aug 21$0.55$0.35$0.90$21.60$35.90
$35.00$25.00Aug 21$0.55$0.83$1.38$23.62$36.38
$30.00$22.50Aug 21$1.63$0.35$1.98$20.52$31.98
$30.00$25.00Aug 21$1.63$0.83$2.46$22.54$32.46

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 1 found (best R:R 0.45, avg credit $1.56)

Put SpreadCall SpreadExpiryCreditMax LossR:RBE LowBE High
22/2530/35Aug 21$1.56$3.440.45$23.44$31.56

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 1 found (best R:R 2.38, cheapest $1.48)

CALLS (0)
No calls found
PUTS (1)
LowMidHighExpiryDebitMax GainR:R
$25.00$30.00$35.00Aug 21$1.48$3.522.38

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 $0.53, -- credits)

CALLS (1)
Buy KSell KRatioExpiryNetMax Gain
$30.00$35.001:2Aug 21$0.53$4.47
PUTS (3)
Buy KSell KRatioExpiryNetMax Gain
$35.00$30.001:2Aug 21$0.65$4.35
$30.00$25.001:2Aug 21$1.54$3.46
$25.00$22.501:2Aug 21$0.13$2.37

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 2 found (best yield 4.91%, avg 3.25%)

StrikeExpiryBidDeltaOTM%Yield%If Called%VolOI
$30.00Aug 21$1.400.435.3%4.91%10.18%38343
$35.00Aug 21$0.450.1822.8%1.58%24.39%43690

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 403
Total Puts 1,799
Put/Call Ratio 4.46
Net Difference -1,396

Prior's Put/Call Breakdown

Total Calls 952
Total Puts 613
Put/Call Ratio 0.64
Net Difference 339

Prior 7-Day Put/Call Summary

Total Calls 4,161
Total Puts 4,875
Average Put/Call Ratio 1.26
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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