Cabaletta Bio, Inc. (CABA) Options Volume

1,264 Cabaletta Bio, Inc. (CABA) option contracts changed hands in the latest session, at a put/call volume ratio of 0.72. This page tracks how actively CABA options trade — contracts and dollars — and flags individual contracts running far above their own 30-day average volume.

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

Last close
$3.11
52-week range
$1.43 – $4.13
ATM IV (30d)
145.5%
IV rank
26 / 100
Low
Expected move
±$1.18 (±38.1%)
Put/call OI
0.08
Call-heavy
Max pain
$2.5
↓ 19.5% below close
Next earnings
Nov 11, 2026

Options Volume & Premium Flow

Total options volume1,264
Call volume733
Put volume531
Put/call volume ratio0.72
Listed contracts134
Call premium traded$61.16K
Put premium traded$105.85K
Premium put/call ratio1.73
Open interest rank (31 day)0 / 100

CABA Options Volume Trend

04.4K8.8K13.2K17.6KFeb '26May '26Aug '26

CABA total options volume per session, past year.

0.0012.3124.6236.9249.23Feb '26May '26Aug '26

CABA put/call volume ratio, past year.

CABA Unusual Options Activity

No CABA contract currently trades at 3× its 30-day average volume with at least 500 contracts — nothing clears OptiView's unusual-activity bar today.

With a put/call volume ratio of 0.72, today's trading is roughly balanced between calls and puts. Measured in dollars rather than contracts, $61.16K of call premium and $105.85K of put premium changed hands — the larger premium flow is on the put side.

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CABA Options FAQ

How many CABA options traded today?

1,264 CABA option contracts traded as of Aug 24, 2026 — 733 calls and 531 puts.

Is there unusual options activity in CABA today?

No CABA contract currently clears OptiView's unusual-activity bar as of Aug 24, 2026, which requires at least 3× the contract's 30-day average volume and 500 contracts traded.

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.