RBB Fund, Inc. (ZTEN)
Management Company · XNYS · Series S000083564 · View on SEC EDGAR ↗
$49.70
As of Aug. 19, 2026
▲ +0.29 (+0.58%)
1-day change
$49.33 – $52.15
52-week range
- Net assets
- $30.3M
- Holdings
- 234
- As of
- May 31, 2026
- Top 10 holdings weight
- 7.23%
- Effective number of positions
- 188.6
- Positions above 1%
- 1
On this page
- Price chart The fund's market price over time, with technical overlays.
- Performance Total return, volatility, drawdown and other risk metrics.
- Fund flows Money flowing in and out of the fund each month, from N-PORT filings.
- Holdings Every position the fund currently holds, with weights.
- Sector breakdown How the fund's holdings split across market sectors.
- Institutional owners 13F institutions that report holding this ETF.
- Similar funds Other funds with overlapping holdings or comparable size.
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Performance as of March 10, 2026
| Period | Price return | Total return |
|---|---|---|
| 1M | ▼ -0.50% | — |
| 3M | ▼ -0.61% | — |
| 6M | ▼ -0.83% | — |
| YTD | ▼ -0.27% | — |
| 1Y | ▲ +1.78% | — |
| 3Y | — | — |
| 5Y | — | — |
| Max since Feb. 27, 2024 | ▲ +3.22% | — |
- Volatility 1Y
- 5.69%
- Volatility 3Y
- —
- Max drawdown 3Y
- —
- Beta 3Y
- —
- Sharpe 1Y*
- 0.34
Total return is shown once dividend history for this fund has been collected — price return alone would duplicate it misleadingly. Returns are not benchmarked against an index. * Sharpe ratio is computed with a 0% risk-free rate.
Fund flows (SEC-reported)
- Last month (May 2026)
- +$0
- Quarter ending May 2026
- +$2.1M
- Trailing 12 months
- -$32.5M
Jun 2025 – May 2026
Based on the fund's own SEC Form N-PORT monthly flow disclosures (Item C.9 "Flow Information") — sales minus redemptions, reinvested distributions excluded. This is a different, independent metric from the "Net flows" estimate above (which is derived from daily shares-outstanding changes). SEC N-PORT filing lag is up to ~60 days; the most recent month/quarter may not yet be fully reflected.
Full composition 234 holdings
| Name | CUSIP | Value | % | Balance | Category | Country |
|---|---|---|---|---|---|---|
| ARIZONA PUBLIC SERVICE | 040555DK7 | $127K | 0.42 | 129,000 | DBT | US |
| BOSTON SCIENTIFIC CORP | 101137AE7 | $127K | 0.42 | 116,000 | DBT | US |
| ESSENTIAL UTILITIES INC | 29670GAL6 | $127K | 0.42 | 129,000 | DBT | US |
| AEP TEXAS INC | 00108WAV2 | $127K | 0.42 | 129,000 | DBT | US |
| PROGRESSIVE CORP | 743315BD4 | $127K | 0.42 | 127,000 | DBT | US |
| RLI CORP | 749607AD9 | $127K | 0.42 | 131,000 | DBT | US |
| BURLINGTN NORTH SANTA FE | 12189TAX2 | $127K | 0.42 | 116,000 | DBT | US |
| VISA INC | 92826CBB7 | $127K | 0.42 | 128,000 | DBT | US |
| IDAHO POWER CO | 45138LBM4 | $127K | 0.42 | 130,000 | DBT | US |
| SPIRE INC | 84857LAE1 | $127K | 0.42 | 127,000 | DBT | US |
| MICROSOFT CORP | 594918BS2 | $127K | 0.42 | 141,000 | DBT | US |
| LYB INT FINANCE III | 50249AAR4 | $127K | 0.42 | 125,000 | DBT | US |
| CHARTER COMM OPT LLC/CAP | 161175CS1 | $127K | 0.42 | 130,000 | DBT | US |
| TRANSURBAN FINANCE CO | 89400PAL7 | $127K | 0.42 | 130,000 | DBT | AU |
| TEXTRON INC | 883203CF6 | $127K | 0.42 | 130,000 | DBT | US |
| ALLSTATE CORP | 020002AT8 | $127K | 0.42 | 120,000 | DBT | US |
| KIMCO REALTY OP LLC | 49447BAC7 | $127K | 0.42 | 125,000 | DBT | US |
| WPP 2025 LLC | 92944AAA1 | $127K | 0.42 | 129,000 | DBT | US |
| CHUBB INA HOLDINGS LLC | 00440EAH0 | $127K | 0.42 | 113,000 | DBT | US |
| WALT DISNEY COMPANY/THE | 254687GE0 | $126K | 0.42 | 130,000 | DBT | US |
| BROADCOM INC | 11135FDB4 | $126K | 0.42 | 128,000 | DBT | US |
| WILLIAMS COMPANIES INC | 969457CV0 | $126K | 0.42 | 128,000 | DBT | US |
| GE VERNOVA INC | 36828AAB7 | $126K | 0.42 | 128,000 | DBT | US |
| MARSH & MCLENNAN COS INC | 571748CF7 | $126K | 0.42 | 128,000 | DBT | US |
| TYCO ELECTRONICS GROUP S | 902133BF3 | $126K | 0.42 | 128,000 | DBT | LU |
| GENERAL ELECTRIC CO | 369604CA9 | $126K | 0.42 | 126,000 | DBT | US |
| SHELL FINANCE US INC | 822905AQ8 | $126K | 0.42 | 128,000 | DBT | US |
| CUBESMART LP | 22966RAK2 | $126K | 0.41 | 127,000 | DBT | US |
| VERIZON COMMUNICATIONS | 92343VHG2 | $126K | 0.41 | 128,000 | DBT | US |
| LINCOLN NATIONAL CORP | 534187BZ1 | $125K | 0.41 | 128,000 | DBT | US |
| CLECO POWER LLC | 185508AJ7 | $125K | 0.41 | 126,000 | DBT | US |
| RTX CORP | 913017BK4 | $125K | 0.41 | 116,000 | DBT | US |
| HUBBELL INC | 443510AL6 | $124K | 0.41 | 128,000 | DBT | US |
| U.S. Bank Money Market Deposit Account | 8AMMF0A92 | $13K | 0.04 | 13,372 | STIV | US |
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Sector breakdown
Other/Unmapped
100.0%
Institutional owners (13F) 8 filers
Institutions that report holding this ETF in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.
| Institution | Value | % of tracked 13F | Shares | Type | As of |
|---|---|---|---|---|---|
| F/m Investments LLC | $18,029,314 | 41.96% | 357,654 | Shares | June 30, 2026 |
| Lido Advisors, LLC | $17,127,168 | 39.86% | 339,685 | Shares | June 30, 2026 |
| Crew Capital Management, Ltd | $3,880,730 | 9.03% | 76,967 | Shares | June 30, 2026 |
| CITADEL ADVISORS LLC | $1,825,028 | 4.25% | 36,196 | Shares | June 30, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,248,820 | 2.91% | 24,768 | Shares | June 30, 2026 |
| JANE STREET GROUP, LLC | $860,984 | 2.00% | 17,076 | Shares | June 30, 2026 |
| Pillar Financial Advisors, LLC | $727 | 0.00% | 14 | Shares | June 30, 2026 |
| FIDUCIARY FINANCIAL ADVISORS | $52 | 0.00% | 1 | Shares | June 30, 2026 |
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