CBOJ Short Interest
Calamos ETF Trust - Calamos Bitcoin Structured Alt Protection ETF - January (CBOJ) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $18.2M, listed on CBOE, carrying a beta of 0.14 to the broader market. The fund is an actively managed ETF that seeks to provide investment results, that before taking total fund operating fees and expenses into account, track the positive price return of spot bitcoin up to the stated cap over a specified period of time of approximately one year, while seeking to provide protection against decreases in the price of spot bitcoin of more than 10% over the same Outcome Period. public since 2025-01-22.
Short interest is the total number of shares currently sold short and not yet covered, reported twice monthly by FINRA. Days to cover (short interest divided by average daily volume) indicates how long it would take short sellers to close positions, with higher values signaling greater squeeze potential.
- Settlement Date
- 2026-09-30
- Short Interest
- 71
- Previous Short Interest
- 71
- Change
- 0.00%
- Days to Cover
- 1.00
- Avg Daily Volume
- 2.3K
- Avg Days to Cover (24 reports)
- 1.31
Showing 24 twice-monthly FINRA short interest reports for Calamos ETF Trust - Calamos Bitcoin Structured Alt Protection ETF - January.
Learn how short interest is reported and how to read the data →
Frequently asked CBOJ short interest questions
- What is the current CBOJ short interest?
- As of the Sep 30, 2026 settlement, Calamos ETF Trust - Calamos Bitcoin Structured Alt Protection ETF - January (CBOJ) short interest is 71 shares, a 0.00% change from the prior period. FINRA publishes short interest twice monthly on the 15th and last business day of each month under Rule 4560.
- What is the CBOJ days-to-cover ratio?
- Days-to-cover is 1.00, calculated as short interest divided by average daily volume. It estimates how many trading days closing all short positions would consume given typical liquidity. Values above 5 days are commonly cited as elevated; values above 10 days are squeeze-relevant.
- How does CBOJ short interest affect options pricing?
- High short interest changes options pricing through three mechanics: borrow-rebate effects (synthetic long stock trades below frictionless put-call parity by approximately the borrow rebate when shares are hard-to-borrow), gamma-squeeze setup risk (if dealers are short gamma against retail call buying, dealer hedge flow can amplify upward moves), and elevated event-vol pricing on names with squeeze potential. See the canonical short-interest documentation for the full mechanism.