Which closed-end funds own Monolithic Power Systems Inc?
9 active closed-end funds report this security in their latest N-PORT filing, with a combined reported value of $98.2M. Security type: common equity. Country: United States. CUSIP 609839105 · ISIN US6098391054 · ticker MPWR.
Holdings are historical filings (report dates May 29, 2026 – Jul 31, 2026; N-PORT becomes public ~60 days after quarter end), not live positions. Weights are percent of each fund’s net assets. Different instruments of one issuer (shares, bonds, preferreds) are separate securities — see related securities below.
Funds holding this security
| Fund | Category | Weight | Value (USD) | Balance | Fund net assets | Prem/disc | Report date |
|---|---|---|---|---|---|---|---|
| BSTZ BlackRock Science & Technology Term Trust | Technology | 1.58% | $38.3M | 27,731 sh | $2.4B | NAV unavailable | Jun 30, 2026 |
| ASG Liberty All Star Growth Fund | U.S. Equity | 1.48% | $5.9M | 4,250 sh | $398M | 13.4% discount | Jun 30, 2026 |
| BST BlackRock Science & Technology Trust | Technology | 1.43% | $27.3M | 19,778 sh | $1.9B | 4.5% discount | Jun 30, 2026 |
| AIO Virtus Artificial Intelligence & Technology Opportunities Fund | Technology | 0.69% | $7.4M | 5,170 sh | $1.1B | 9.9% discount | Jul 31, 2026 |
| QQQX Nuveen NASDAQ 100 Dynamic Overwrite Fund | Covered Call / Option Income | 0.53% | $8.5M | 6,123 sh | $1.6B | 3.8% discount | Jun 30, 2026 |
| CRF Cornerstone Total Return Fund | Multi-Asset | 0.37% | $3.9M | 2,852 sh | $1.1B | 0.3% discount | Jun 30, 2026 |
| CLM Cornerstone Strategic Investment Fund | Multi-Asset | 0.35% | $6.9M | 5,012 sh | $2B | 2.6% premium | Jun 30, 2026 |
| GOF Guggenheim Strategic Opportunities Fund | Multi-Asset | 0.00% | $26.6K | 17 sh | $2.8B | 12.9% discount | May 29, 2026 |
| BRW Saba Capital Income & Opportunities Fund | U.S. Equity | -0.01% | $-34.2K | -24 sh | $351M | 17.8% discount | Jul 31, 2026 |
9 positions. Source: SEC Form N-PORT via market-data vendor re-serve. Funds without an N-PORT on file cannot appear here.
Also listed in filings as: MONOLITHIC POWER SYSTEMS INC.
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