Tour v509
CAI
CARIS LIFE SCIENCES
$20.97 -3.05%
(8/17 18:17) ◀
|
Tuesday, August 18, 2026 (6:17pm)
January 2026
|
▶ (8/19 18:17)
◀ 8/18 18:17 ▶

Option Volume

Detail
ℹ
Current (08/18) 383
Calls: 179 (47%)
Puts: 204 (53%)
Prior (08/17) 87
Calls: 40 (46%)
Puts: 47 (54%)
Current vs Prior +340.23%
Calls: +347.50% (Calls)
Puts: +334.04% (Puts)
Prior 7-Day Total 2,642
Calls: 2,177 (82%)
Puts: 465 (18%)
Prior 7-Day Average 377
Calls: 311 (82%)
Puts: 66 (18%)
Current vs Prior 7-Day Avg +1.48%
Calls: -42.44%
Puts: +207.10%
Sentiment BEARISH

Dollar Volume

Detail
ℹ
Current (08/18) $100.2K
Calls: $59.9K (60%)
Puts: $40.3K (40%)
Prior (08/17) $13.7K
Calls: $9.0K (66%)
Puts: $4.7K (34%)
Current vs Prior +633.55%
Calls: +566.20%
Puts: +763.13%
Prior 7-Day Total $844.0K
Calls: $748.6K (89%)
Puts: $95.4K (11%)
Prior 7-Day Average $120.6K
Calls: $106.9K (89%)
Puts: $13.6K (11%)
Current vs Prior 7-Day Avg -16.92%
Calls: -44.03%
Puts: +195.89%
Sentiment BULLISH

Put/Call Ratio

Detail
ℹ
Current (08/18) 1.14
Prior (08/17) 1.18
Current vs Prior -3.01%
Prior 7-Day Average 1.29
Current vs Prior 7-Day Avg -11.52%
Sentiment BEARISH

Open Interest

Detail
ℹ
Current (08/18) 187
Calls: 128 (68%)
Puts: 59 (32%)
Prior (08/17) 2,907
Calls: 2,785 (96%)
Puts: 122 (4%)
Current vs Prior -93.57%
Prior 7-Day Total 17,121
Calls: 15,558 (91%)
Puts: 1,563 (9%)
Prior 7-Day Average 2,445
Calls: 2,222 (91%)
Puts: 223 (9%)
Current vs Prior 7-Day Avg -92.35%
Sentiment BEARISH

Expected Move

Detail
ℹ
Expiry (08/21) | Next (09/18)Expiry (08/21) | Next (09/18)
Current 9.68% | 18.36%9.68% | 18.36%
Prior 10.77% | 15.72%10.77% | 15.72%
Current vs Prior -10.13% | +16.80%-10.13% | +16.80%
Prior 7-Day Avg 11.72% | 17.73%11.72% | 17.73%
Current vs 7-Day Avg -17.40% | +3.56%-17.40% | +3.56%
Prior 7-Day Eod 10.77% | 15.72%10.77% | 15.72%
Current vs 7-Day Eod -10.13% | +16.80%-10.13% | +16.80%
Sentiment BULLISHBULLISH

Relative Spread

Detail
ℹ
Expiry | Next
Current 234.00% | 62.08%
Calls: 189.44% | 108.78%
Puts: 278.57% | 15.38%
Prior 234.00% | 62.08%
Calls: 189.44% | 108.78%
Puts: 278.57% | 15.38%
Current vs Prior +0.00% | +0.00%
Prior 7-Day Avg 234.00% | 62.08%
Calls: 189.44% | 108.78%
Puts: 278.57% | 15.38%
Current vs 7-Day Avg +0.00% | +0.00%
Liquidity Expensive
+
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🤖 AI Insights

Massive premium surge with dollar volume up 634% vs prior. Unusually high activity with volume up 340% vs prior - elevated interest. Slightly bearish P/C ratio of 1.14. Call-heavy open interest (128 calls vs 59 puts) suggests bullish positioning.

Smart Money BULLISH
Retail Flow BEARISH
Overall BEARISH
Dollar Volume
Option Volume
Put/Call Ratio
Open Interest
Expected Move
Current BULLISH
Prior BULLISH
7-Day Avg BULLISH
Current NEUTRAL
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
💧 Low Volume

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. -- found (avg delta --, highest --)

No options available for this category

Most actively traded options today. High liquidity = easy entry/exit. 3 active (total vol 44, top 40)

CALLS (1)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$22.50Sep 180.453.00$1.73147.4%10.45--
PUTS (2)
StrikeExpiryBidAskMarkSpreadVolDeltaOI
$20.00Sep 180.652.20$1.43108.4%400.3859
$20.00Aug 210.001.30$0.65200.0%30.33--

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 1 strikes (avg 86.5%, max 86.5%)

CALLS (0)
No calls found
PUTS (1)
StrikeNear ExpFar ExpNear IVFar IVBack%VolOI
$20.00Aug 21Sep 18146.1%78.3%86.5%4359

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

No setups found for this strategy

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

No setups found for this strategy

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 1 found (avg debit $0.78, cheapest $0.78)

CALLS (0)
No calls found
PUTS (1)
StrikeNear ExpFar ExpNet DebitNear IVFar IV
$20.00Aug 21Sep 18$0.78146.1%78.3%

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

No straddle setups found

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 1 found (cheapest 15.07% of stock, avg 15.07%)

Call KPut KExpiryCall$Put$TotalBE LowBE High
$22.50$20.00Sep 18$1.73$1.43$3.16$16.84$25.66

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

No iron condor setups found

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

No setups found for this strategy

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

No setups found for this strategy

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 1 found (best yield 2.15%, avg 2.15%)

StrikeExpiryBidDeltaOTM%Yield%If Called%VolOI
$22.50Sep 18$0.450.457.3%2.15%9.44%1--

Historical option prices for this thinly-traded ticker. Live quotes are wide and stale — use where each contract actually traded plus its 30-day range to place a limit order. 105 contracts (avg 539 vol/day, 104 traded recently)

CAI averages only 539 option contracts/day, so quotes are thin and bid/ask spreads run wide. Use the last actually-traded price below to set a limit order rather than chasing the displayed ask. Most tradeable call: the $7.50 12-17 call last traded $12.50 on 08/06 (now $12.00/$17.00) — try a limit near $12.50. Also watch the $20.00 10-16 call last traded $3.80 on 08/07 (now $2.00/$3.70) — try a limit near $2.85. Most tradeable put: the $20.00 09-18 put last traded $1.77 on 08/07 (now $0.65/$2.20) — try a limit near $1.43.
CALLS (61)
StrikeExpiryBidAskMarkLast Traded30d RangeHistorySugg. LimitOI
$20.00Aug 21$0.00$2.75$1.38$2.65 08/07$0.18–$3.45$1.38--
$20.00Sep 18$0.95$3.90$2.42$2.60 08/07$0.57–$4.25$2.42--
$20.00Oct 16$2.00$3.70$2.85$3.80 08/07$0.93–$5.10$2.85118
$20.00Dec 18$2.50$6.20$4.35$4.15 08/06$1.90–$5.65$4.15--
$20.00Jan 15$3.00$5.80$4.40$2.20 07/28$2.03–$6.60$3.00--
$20.00Mar 19$4.00$7.10$5.55$2.70 07/20$2.88–$6.95$4.00--
$20.00Dec 17$5.50$10.00$7.75$8.00 08/07$4.50–$10.35$7.75--
$22.50Aug 21$0.00$0.40$0.20$1.23 08/07$0.20–$2.35$0.20--
$22.50Sep 18$0.45$3.00$1.73$1.95 08/07$0.35–$3.05$1.73--
$22.50Oct 16$0.65$3.80$2.23$1.50 08/06$0.75–$3.53$1.50--
$22.50Dec 18$1.30$4.90$3.10$0.80 07/31$1.25–$4.58$1.30--
$22.50Jan 15$1.75$4.90$3.33$4.39 08/07$1.65–$4.40$3.33--
$22.50Mar 19$2.15$6.20$4.18$2.10 08/03$2.22–$5.85$2.15--
$22.50Dec 17$5.80$8.80$7.30$7.44 08/07$4.00–$8.65$7.30--
$17.50Aug 21$2.00$5.50$3.75$4.26 08/07$0.63–$6.05$3.75--
$17.50Sep 18$2.45$6.00$4.22$2.90 08/06$1.25–$6.10$2.90--
$17.50Oct 16$3.50$6.50$5.00$3.66 08/06$1.58–$6.50$3.66--
$17.50Dec 18$3.80$7.50$5.65$3.60 07/16$2.23–$7.50$3.80--
$17.50Jan 15$4.50$7.60$6.05$3.72 07/13$2.70–$7.70$4.50--
$17.50Mar 19$4.70$8.30$6.50$3.68 07/30$3.70–$8.85$4.70--
$17.50Dec 17$6.60$10.90$8.75$6.01 08/05$5.75–$10.75$6.60--
$25.00Aug 21$0.00$1.35$0.68$0.30 08/07$0.03–$1.10$0.30--
$25.00Sep 18$0.00$2.30$1.15$1.10 08/07$0.55–$1.43$1.10--
$25.00Oct 16$0.10$2.90$1.50$1.70 08/07$0.43–$2.60$1.50--
$25.00Dec 18$0.60$4.10$2.35$2.70 08/07$1.25–$3.45$2.35--
$25.00Jan 15$1.00$4.30$2.65$3.20 08/07$1.25–$4.00$2.65--
$25.00Mar 19$1.65$5.30$3.47$4.50 08/07$1.80–$5.00$3.47--
$25.00Dec 17$4.00$8.50$6.25$4.50 08/06$3.45–$8.50$4.50--
$15.00Aug 21$4.50$8.00$6.25$6.60 08/07$1.28–$8.50$6.25--
$15.00Sep 18$4.80$8.20$6.50$2.62 07/31$2.42–$8.50$4.80--
$15.00Oct 16$5.00$8.50$6.75$5.77 06/26$2.47–$8.80$5.77--
$15.00Dec 18$5.50$9.30$7.40$3.80 07/20$3.23–$9.30$5.50--
$15.00Jan 15$5.90$9.50$7.70$8.00 08/07$3.40–$9.55$7.70--
$15.00Mar 19$6.30$9.90$8.10$4.70 07/24$4.33–$9.80$6.30--
$15.00Dec 17$8.00$12.00$10.00$8.50 08/06$6.50–$12.80$8.50--
$12.50Jan 15$7.50$11.50$9.50$4.93 07/29$4.95–$11.65$7.50--
$12.50Dec 17$9.00$13.40$11.20$9.70 08/06$7.00–$13.45$9.70--
$30.00Aug 21$0.00$0.10$0.05$0.05 08/05$0.03–$1.10$0.05--
$30.00Oct 16$0.00$2.30$1.15$0.26 08/05$0.57–$1.33$0.26--
$30.00Dec 18$0.00$2.50$1.25$0.40 07/23$0.60–$1.90$0.40--
$30.00Jan 15$0.15$3.50$1.83$1.10 07/14$0.63–$2.55$1.10--
$30.00Mar 19$0.45$4.00$2.23$3.00 08/07$1.38–$3.55$2.23--
$30.00Dec 17$2.00$7.00$4.50$4.25 06/25$2.45–$6.25$4.25--
$10.00Aug 21$9.50$13.00$11.25$9.50 08/06$5.35–$13.60$9.50--
$10.00Oct 16$9.60$13.10$11.35$11.31 08/07$5.80–$13.50$11.31--
$10.00Dec 18$9.70$13.50$11.60$9.51 07/02$5.90–$13.60$9.70--
$10.00Jan 15$9.60$13.40$11.50$9.90 08/06$6.55–$13.95$9.90--
$10.00Mar 19$10.00$14.00$12.00$8.90 06/22$7.10–$13.95$10.00--
$10.00Dec 17$10.00$15.00$12.50$8.15 07/23$8.00–$15.00$10.00--
$7.50Oct 16$11.90$15.70$13.80$12.20 08/06$8.25–$15.95$12.20--
$7.50Dec 17$12.00$17.00$14.50$12.50 08/06$9.25–$17.00$12.504
$35.00Oct 16$0.00$1.75$0.88$0.65 06/18$0.50–$1.08$0.65--
$35.00Dec 18$0.05$2.40$1.22$0.85 08/07$0.25–$1.68$0.85--
$35.00Jan 15$0.55$1.05$0.80$0.85 08/06$0.80–$1.95$0.80--
$35.00Mar 19$0.00$3.40$1.70$1.34 08/06$0.93–$2.28$1.34--
$35.00Dec 17$1.00$6.00$3.50$4.30 08/07$1.48–$5.30$3.50--
$5.00Dec 17$14.00$19.00$16.50$11.40 07/21$11.25–$18.75$14.00--
$2.50Dec 17$16.00$21.00$18.50$20.17 08/07$13.00–$21.00$18.50--
$2.50Aug 21$17.00$20.40$18.70--$18.70–$18.70—$17.006
$40.00Dec 18$0.00$2.25$1.13$0.30 07/14$0.57–$1.50$0.30--
$45.00Dec 18$0.00$5.00$2.50$2.00 08/06$0.88–$2.50$2.00--
PUTS (44)
StrikeExpiryBidAskMarkLast Traded30d RangeHistorySugg. LimitOI
$20.00Aug 21$0.00$1.30$0.65$1.15 08/06$0.35–$4.90$0.65--
$20.00Sep 18$0.65$2.20$1.43$1.77 08/07$0.80–$4.95$1.4359
$20.00Oct 16$0.65$3.90$2.28$2.69 08/06$1.30–$5.25$2.28--
$20.00Dec 18$1.35$4.60$2.97$3.43 08/06$2.08–$6.35$2.97--
$20.00Jan 15$1.15$4.10$2.63$4.50 08/06$2.50–$6.65$2.63--
$20.00Mar 19$2.25$5.20$3.73$5.80 07/10$3.22–$7.35$3.73--
$22.50Aug 21$0.50$3.00$1.75$1.60 08/07$0.90–$7.10$1.60--
$22.50Sep 18$0.70$3.90$2.30$3.00 08/07$1.18–$7.25$2.30--
$22.50Dec 17$4.50$9.50$7.00$9.64 08/04$6.50–$10.15$7.00--
$17.50Aug 21$0.00$1.25$0.63$0.25 08/06$0.28–$3.30$0.25--
$17.50Sep 18$0.00$1.20$0.60$1.42 08/06$0.60–$3.05$0.60--
$17.50Oct 16$0.00$2.90$1.45$2.84 08/03$0.70–$3.70$1.45--
$17.50Dec 18$0.30$3.70$2.00$4.35 07/23$1.65–$4.28$2.00--
$17.50Jan 15$1.20$3.00$2.10$4.40 07/31$1.78–$4.95$2.10--
$17.50Mar 19$1.25$4.00$2.63$4.70 08/03$2.17–$5.65$2.63--
$17.50Dec 17$1.55$6.50$4.03$4.78 08/06$4.00–$6.60$4.03--
$25.00Sep 18$2.30$5.90$4.10$4.40 08/07$2.83–$9.65$4.10--
$25.00Oct 16$3.00$6.50$4.75$7.50 06/26$3.55–$9.50$4.75--
$15.00Aug 21$0.00$2.15$1.08$0.07 08/06$0.08–$1.33$0.07--
$15.00Sep 18$0.00$2.05$1.02$0.50 08/06$0.43–$2.00$0.50--
$15.00Oct 16$0.00$2.40$1.20$0.24 08/07$0.15–$1.75$0.24--
$15.00Dec 18$0.00$3.10$1.55$2.10 06/26$0.70–$2.93$1.55--
$15.00Jan 15$0.10$3.10$1.60$2.70 07/28$1.23–$3.35$1.60--
$15.00Mar 19$0.25$3.30$1.78$2.30 08/06$1.53–$4.08$1.78--
$15.00Dec 17$1.70$5.40$3.55$3.61 08/06$2.50–$5.10$3.55--
$12.50Aug 21$0.00$0.15$0.08$0.06 08/06$0.08–$0.43$0.06--
$12.50Oct 16$0.00$1.50$0.75$0.70 07/06$0.70–$0.75$0.70--
$12.50Dec 18$0.00$2.55$1.27$1.25 07/13$1.20–$1.95$1.25--
$12.50Jan 15$0.00$2.70$1.35$1.60 06/12$0.98–$2.18$1.35--
$12.50Mar 19$0.00$2.85$1.43$1.25 08/07$1.33–$2.95$1.25--
$30.00Oct 16$7.30$10.80$9.05$11.00 08/06$7.15–$14.50$9.05--
$10.00Aug 21$0.00$1.35$0.68$0.25 07/22$0.03–$1.10$0.25--
$10.00Sep 18$0.00$2.15$1.08$0.48 08/05$0.28–$1.23$0.48--
$10.00Dec 18$0.00$2.40$1.20$0.90 07/24$0.65–$1.40$0.90--
$10.00Jan 15$0.00$1.50$0.75$0.80 08/06$0.43–$1.63$0.75--
$10.00Mar 19$0.00$2.55$1.27$1.10 08/03$1.05–$2.03$1.10--
$10.00Dec 17$0.75$1.70$1.23$1.88 08/04$0.88–$3.28$1.23--
$7.50Sep 18$0.00$2.15$1.08$0.20 07/20$0.48–$1.10$0.20--
$7.50Dec 18$0.00$1.85$0.93$0.30 07/24$0.20–$1.25$0.30--
$7.50Mar 19$0.00$2.35$1.18$0.55 07/29$0.85–$1.48$0.55--
$35.00Jan 15$12.50$16.30$14.40$16.09 08/06$12.50–$19.60$14.40--
$5.00Aug 21$0.00$1.25$0.63$0.10 07/23$0.63–$1.08$0.10--
$5.00Dec 18$0.00$2.25$1.13$0.25 07/24$0.13–$1.13$0.25--
$2.50Aug 21$0.00$0.05$0.03$0.24 07/29$0.03–$1.08$0.03--

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 179
Total Puts 204
Put/Call Ratio 1.14
Net Difference -25

Prior's Put/Call Breakdown

Total Calls 40
Total Puts 47
Put/Call Ratio 1.18
Net Difference -7

Prior 7-Day Put/Call Summary

Total Calls 2,177
Total Puts 465
Average Put/Call Ratio 1.29
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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