MUC
BLACKROCK MUNIHOLDINGS CALIFORNIA QUALITY FUND, INC.$10.01 +0.14 (+1.42%)
Oct 27 4:00 PM ET · prev $9.87
Market cap
$1.5B
Small cap
1 year
−8.3%
from $10.92 · Oct 28
30 days
+3.5%
from $9.67
52-week range
$9.63–11.04
−9% from high · low Oct 14
Avg volume 20D
847.5K
shares / day
Short interest
226.5K
≈0.1% of shares · +5.5%
Days to cover
1.0
at average volume
Insider net
$0
no open-market trades · 12 mo
New fund stakes
0
Q2 2026 13F · 0 exits
Price
Daily candles with volume. Pins mark insider trades, rating changes, 13F stakes, reports, catalysts and short-interest jumps.
No data for this timeframe.
- X Jul 31 Short interest falls 81.0% to 31.5K
- X Aug 14 Short interest jumps 55.3% to 48.9K
- X Aug 31 Short interest jumps 154.9% to 124.6K
- X Sep 15 Short interest jumps 110.3% to 262.1K
Signal stack
Where each data set points today.
- InsidersNO TRADES
No open-market buys or sells in 12 months. Recent filings are awards, exercises and tax withholding.
- InstitutionsMIXED
Q2 2026: 4 added (0 new), 2 trimmed or exited.
- Short sellersSTEADY
Short interest +5.5% to 226.5K shares. 1.0 days to cover, ≈0.1% of shares.
- TrendDOWNTREND
1% below its 50-day average.
Who's buying
13F· Q2 20260
new positions
0
exits
| Fund | Move | Value |
|---|---|---|
| MAI Capital Management | DOUBLED | $2.0M |
| JANE STREET GROUP, LLC | ADD | $1.0M |
| Integrated Wealth Concepts LLC | ADD | $477.3K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | ADD | $243.5K |
| Lido Advisors, LLC | TRIM | $201.3K |
| BANK OF MONTREAL /CAN/ | TRIM | $127.5K |
| Allspring Global Investments Holdings, LLC | ADD | $11.4M |
| WELLS FARGO & COMPANY/MN | ADD | $9.6M |
Quarterly 13F filings are due 45 days after each quarter ends.
Catalysts
Scheduled dates and disclosed events: earnings, FDA and trial readouts, halts, press releases. Colored dot = impact.
Recent
Insider ledger
Form 4$0
open-market buys or sells · 12 mo
| Date | Insider | Type | Value |
|---|---|---|---|
| Feb 9, 2026 | Harris Stayce D. Director | OTHER | 11 sh |
Earnings setup
Estimates| Period | EPS est. | Range | 30D rev. | Revenue |
|---|---|---|---|---|
| Current Q | — | — | — | $0.00 |
| Next Q | — | — | — | $0.00 |
| Current FY | — | — | — | $0.00 |
| Next FY | — | — | — | $0.00 |
Short side
FINRA· Oct 15, 2026226,527
shares short
+5.5%
vs prior settlement
1.0
days to cover
≈0.1%
of shares outstanding
Recent activity
The latest filings, insider trades, analyst actions, press and options flow — newest first.
Sep 29, 2026 Earnings calendar
MUC Q4 2026 Earnings Scheduled — 2026-09-29
Jun 30, 2026 Inst.
MAI Capital Management — DOUBLED
183,275 shares ($2.0M)
Jun 30, 2026 Inst.
JANE STREET GROUP, LLC — ADD
91,885 shares ($1.0M)
Feb 9, 2026 Insider
Harris Stayce D. acquired 11 shares
Director