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Equibles

CHI · Calamos Convertible Opportunities & Income Fund · Short Interest

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$12.36 -0.01 (-0.08%) At close · Sep 11
Rebalance outlook locked
Market Cap
$999.57M
Shares
80.87M

Shares sold short and not yet covered, reported twice monthly. Days to cover is the reported short position divided by average daily volume.

Pull short interest history through the short interest API or MCP →

CHI Latest Reported Short Interest

FINRA reported 663,776 CHI shares sold short as of the August 31, 2026 settlement date, an increase of 94,311 shares. Days to cover was 5.22 based on FINRA's reported average daily volume.

Official FINRA short-interest data · share counts are restated for subsequent splits of this listing

CHI Short Interest Forecast

Equibles' model estimates 657,228 shares sold short for the September 15, 2026 settlement, -1.0% versus the latest reported position, with a likely range of 540,170 to 760,275 shares. This model prediction uses FINRA data through September 11, 2026; FINRA's official release is expected September 24, 2026.

Model estimate

Expected Sep 15 short interest

as of Sep 11 Low confidence 63% chance it falls
657,228 -1.0% vs reported
Likely range 540,170 to 760,275 The latest estimate appears in the chart below. Official release expected Sep 24. Methodology
Short Squeeze Score
50/100
Short interest 0.8% of shares — P38 Days to cover 5.2 — P66 Price vs VWAP -4.4% — P43 Short-volume trend -4.8% — P31 Short interest change +16.6% — P80 Worst FTD 0.02% of shares — P64

Positioning score 49.9 + catalyst boost 0 (total capped at 100). This is a screening index, not a probability of a squeeze.

Method and coverage limits

Factor percentiles compare eligible primary operating-company stocks reporting short interest at the latest settlement date (2026-08-31). The weighted mean uses short interest 30%, days to cover 20%, price vs VWAP 15%, short-volume trend 15%, short-interest change 10%, and fails-to-deliver 10%. Missing factors redistribute their weight; incomplete coverage is not evidence of low risk. Price, volume, and earnings boosts add 10 each, capped at 20.

Shares outstanding are not free float. Borrow fees, utilization, lendable supply, recalls, and dealer inventory are not measured. Short-sale volume does not measure the change in open shorts; fails to deliver are not a borrow-cost measurement; price vs VWAP does not establish short sellers' entry prices. Earnings can move prices in either direction.

The weights are judgment-based, not calibrated to future squeeze outcomes. The separate options assessment below does not change this universe ranking.

Options positioning & squeeze sensitivity

Nearest expiration after today within 30 calendar days; same-day expirations and later maturities are excluded.

No active listed options were found.

Open interest has both a buyer and a seller; it does not reveal dealer hedge direction. Gross gamma sums both calls and puts without netting and uses a local 1% price-change approximation. It measures sensitivity, not predicted buying or a squeeze probability.

Assessment prepared 2026-09-12 23:02 UTC. Options model values may come from a cached snapshot; their original computation time is not supplied. Open interest has its own effective date.

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    • Short Interest History

    Settlement Date Current Position Previous Position Change Days to Cover
    2026-09-30 Scheduled
    FINRA publishes Oct 9
    		 — — — —
    2026-09-15 Scheduled
    FINRA publishes Sep 24
    		 — — — —
    2026-08-31 663,776 569,465 +94,311 5.22
    2026-08-14 569,465 508,799 +60,666 3.97
    2026-07-31 508,799 417,038 +91,761 2.80
    2026-07-15 417,038 328,024 +89,014 2.42
    2026-06-30 328,024 270,489 +57,535 1.51
    2026-06-15 270,489 231,454 +39,035 1.88
    2026-05-29 231,454 197,181 +34,273 1.43
    2026-05-15 197,181 339,126 -141,945 1.12
    2026-04-30 339,126 362,260 -23,134 1.99
    2026-04-15 362,260 435,791 -73,531 1.49
    2026-03-31 435,791 404,857 +30,934 2.26
    2026-03-13 404,857 368,297 +36,560 2.09
    2026-02-27 368,297 398,700 -30,403 2.10
    2026-02-13 398,700 282,093 +116,607 1.90
    2026-01-30 282,093 226,762 +55,331 1.50
    2026-01-15 226,762 204,352 +22,410 1.11
    2025-12-31 204,352 218,515 -14,163 1.02
    2025-12-15 218,515 297,739 -79,224 1.19
    2025-11-28 297,739 356,149 -58,410 1.55
    2025-11-14 356,149 460,072 -103,923 1.53
    2025-10-31 460,072 279,550 +180,522 2.54
    2025-10-15 279,550 259,878 +19,672 1.18
    2025-09-30 259,878 266,625 -6,747 1.18
    2025-09-15 266,625 225,078 +41,547 1.29

    Full FINRA short interest reporting calendar

    Showing 1–24 of 24 settlements
    Key facts CIK 1171471 CUSIP 128117108 13F (30d) 35 filings 35 filers Investor relations