Cytosorbents Corp (CTSO) Open Interest

Cytosorbents Corp (CTSO) has 0 call contracts and 13 put contracts open across all listed expirations. Open interest counts the contracts currently outstanding at each strike. This page shows where CTSO positioning concentrates, which strikes act as walls, and how the totals have trended over the past year.

Data as of Aug 24, 2026, 3:55 PM ET · OPRA data 15 minutes delayed · For information only — not investment advice.

Last close
$0.38
52-week range
$0.31 – $1.00
ATM IV (30d)
500.0%
IV rank
100 / 100
High
Expected move
±$0.59 (±143.3%)
Max pain
$7.5
↑ 1,871.1% above close
Next earnings
Nov 8, 2026

CTSO Open Interest by Strike

02.75.38SpotMax painPut wall2.5057.50

CTSO open interest by strike, all expirations combined — calls in green, puts in red.

Total call open interest0
Total put open interest13
Put wall (largest put OI)$5

CTSO Open Interest Trend

0141.4282.7424565.4Call OIPut OIFeb '26May '26Aug '26

CTSO total call vs. put open interest, past year.

0.000.010.030.040.05Feb '26May '26Aug '26

CTSO put/call open interest ratio, past year.

In total, 0 call contracts and 13 put contracts are open across all listed expirations. The put/call OI ratio has risen from 0.02 in Feb '26 to 0.05 today.

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CTSO Options FAQ

Which CTSO strikes have the highest open interest?

As of Aug 24, 2026, the largest put open interest sits at $5 (the put wall). Strikes with heavy open interest often act as reference levels because a lot of hedging activity is anchored to them.

Methodology. IV rank compares the current 30-day at-the-money implied volatility with its highest and lowest values over the past 52 weeks. Max pain is the strike that minimizes the total payout to option holders at expiration. The call and put walls are the strikes carrying the largest call and put open interest across all expirations. Net gamma exposure (GEX) is measured from the dealer perspective. All statistics are derived from delayed OPRA options data.

Options trading involves significant risk, and losses can exceed your initial investment. Always consult a licensed financial professional before making investment decisions. OptiView does not provide financial advice; all figures on this page are descriptive statistics, not recommendations.