NASDAQ · ZMUN

The RBB Fund, Inc. F/m Ultrashort Tax-Free Municipal ETF (ZMUN)

$49.36−0.48%
Close Sep 28, 2026 · split-adjusted
Sep 28, 2026$49.35▼ 1.43% in range
Sep 30, 2025Low $49.35 · High $50.24Sep 28, 2026
What changed · written from our data
As of Sep 28, 2026

The RBB Fund, Inc. F/m Ultrashort Tax-Free Municipal ETF closed at $49.35 on Sep 28, down 0.48%, within 0.0% of its 52-week closing low. Volume of 3.8K shares was 0.94× its 20-day average (close to normal).

Split-adjusted performance: -1.2% over one month, -1.8% over six months.

Short interest was 6.7K shares at the Sep 15 settlement, up 13.1% from the prior report (2.4 days to cover).

Market cap—
Revenue · quarter——
Diluted EPS——
P/E · TTM—
Net margin—
Dividend yield4.02%$0.1653 last paid
52-week range49.35 – 50.24−1.8% from high
Volume3.8K0.94× 20-day avg
Volatility · 60d1.6%Annualised
Short % of float—2.4 days to cover
Net cash—
Next earnings—Not scheduled
Split-adjusted performance
1W −1.0%1M −1.2%3M −1.5%6M −1.8%YTD −1.5%1Y —3Y —5Y —

Earnings reactions

History →

No reported quarters with price history yet.

Rank within industry

Not enough peers to rank

6-month momentum—
Revenue growth—
Net margin—
Value (low P/E)—
Size—

Short interest

Details →
Shares short6.7K+13.1% vs prior
Days to cover2.4Settled Sep 15
% of float—
Short vol. 10d49.2%of daily volume

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Quick answers

Does The RBB Fund, Inc. F/m Ultrashort Tax-Free Municipal ETF pay a dividend?
Yes. The latest regular dividend was $0.1653 per share (ex-date Sep 28), an annualised yield of 4.02%.

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology