CATF stock
American Century California Municipal Bond ETF (CATF) short interest & short volume · 61K shares short
American Century California Municipal Bond ETF official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
CATF short interest rose 177.4% to 61K shares in the Oct 15, 2026 report (2.0 days to cover). Daily short volume averaged 51.9% of volume over the last 20 sessions, down from 53.2% the 20 sessions before, the 52nd percentile of its own 20-day averages since Sep 18, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 61K
- prior 22K
- % of float
- —
- no float on file
- Days to cover
- 2.0
- avg vol 31K
- Change vs prior report
- +177.4%
| Report date | Shares short | $ value short | Change | % float | Days to cover | Price |
|---|---|---|---|---|---|---|
| Oct 15, 2026 | 61K | $2.9M | +177.4% | — | 2.0 | $47.99 |
| Sep 30, 2026 | 22K | $1.0M | +56.5% | — | 1.0 | $47.24 |
| Sep 15, 2026 | 14K | $676K | +45.2% | — | 1.0 | $48.16 |
| Aug 31, 2026 | 10K | $476K | -32.6% | — | 1.5 | $49.27 |
| Aug 14, 2026 | 14K | $712K | +103.8% | — | 1.6 | $49.66 |
| Jul 31, 2026 | 7K | $347K | -26.3% | — | 1.9 | $49.22 |
Days to cover is short interest divided by FINRA's average daily volume for the period: how many average days of trading it would take shorts to buy back.
Source: FINRA equity short interest (twice monthly) · Settlement Oct 15, 2026
Daily short volume
Share of each day's volume sold short · FINRA Reg SHO
- Latest (Nov 11)
- 84.6%
- 6K of 7K
- 20-day average
- 51.9%
- prior 53.2%
- Percentile vs own history
- 52nd
- 225 periods since 2025
Loading prices…
Source: FINRA Reg SHO daily short sale volume · Latest Nov 11, 2026
Short squeeze score (model)
Model, not a forecast: 40 pts short interest % of float (full at 30%), 25 pts days to cover (full at 10), 15 pts rise in short interest since the prior report (full at +50%), 20 pts price gain since the settlement date (full at +25%). Missing inputs score 0.
CATF's squeeze score and its inputs with Lician Pro.Start 3-day trial — $149/yr
Market-wide: most shorted stocks, biggest changes and unusual short volume · CATF overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-11 | 6,137 | 7,253 | 84.6% |
| 2026-11-10 | 2,209 | 12,184 | 18.1% |
| 2026-11-09 | 1,074 | 11,191 | 9.6% |
| 2026-11-06 | 18,428 | 75,042 | 24.6% |
| 2026-11-05 | 25,782 | 32,422 | 79.5% |
| 2026-11-04 | 1,185 | 2,666 | 44.5% |
| 2026-11-03 | 635 | 3,982 | 15.9% |
| 2026-11-02 | 1,580 | 6,322 | 25.0% |
| 2026-10-30 | 69,927 | 73,285 | 95.4% |
| 2026-10-29 | 11,527 | 14,101 | 81.8% |
CATF short interest FAQ
What is CATF's short interest?
American Century California Municipal Bond ETF (CATF) had 61K shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report.
How many days to cover does CATF have?
2.0 days: 61K shares short divided by an average daily volume of 31K for the Oct 15, 2026 period.
Is CATF short interest rising or falling?
CATF short interest rose (+177.4%) from 22K to 61K shares in the Oct 15, 2026 report.
Is CATF a short squeeze candidate?
Lician's squeeze watch scores CATF 20 out of 100 (low) from the Oct 15, 2026 report: days to cover 5/25, change in short interest vs prior report 15/15. It is a transparent model of how crowded the short side is, not a forecast that a squeeze will happen.
What share of CATF daily volume is sold short?
51.9% on average over the last 20 sessions to Nov 11, 2026 (FINRA Reg SHO daily short volume; the 52nd percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was CATF's latest FINRA short volume?
On Nov 11, 2026, cached FINRA short volume for American Century California Municipal Bond ETF (CATF) was 6,137 shares, 84.6% of 7,253 total volume.
How many CATF short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for American Century California Municipal Bond ETF (CATF), from Oct 29, 2026 through Nov 11, 2026.
How did CATF short volume percent change from the prior cached session?
Cached FINRA short volume for American Century California Municipal Bond ETF (CATF) moved from 18.1% on Nov 10, 2026 to 84.6% on Nov 11, 2026, up 66.5 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.