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MPWR · Monolithic Power Systems, Inc. · Held by Funds

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$1,211.63 +12.82 (+1.07%) At close · Oct 30 Q3 2026 earnings call transcript
S&P 500 member Nasdaq-100 member Russell 1000 member Rebalance outlook locked
Market Cap
$58.91B
Shares
49.14M
Volume · Oct 30 2.13M Avg daily vol (3M) 742.99K

Registered funds — mutual funds, ETFs and closed-end funds — whose latest Form N-PORT portfolio report holds this exact listed security, matched by CUSIP. Each row is one fund position with its size, value and weight in that fund.

Fund Ownership of MPWR by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 27.39% of shares outstanding.

Fund type Of shares outstanding Shares
Index funds 4.68% 2,298,718
Index ETFs 22.71% 11,162,652
Active ETFs 1.19% 586,163
Active funds 17.49% 8,596,728
Unclassified 3.74% 1,835,799
All registered funds 49.81% 24,480,060
How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Funds holding MPWR

1,108 fund positions
Fund Balance Value % of Fund Open
Select Semiconductors Portfolio 1,642,848 $2,082,753,409 4.64%
VANGUARD TOTAL STOCK MARKET INDEX FUND 1,481,838 $2,048,433,578 0.09%
VANGUARD 500 INDEX FUND 1,273,706 $1,760,720,226 0.11%
Invesco QQQ Trust, Series 1 1,042,894 $1,441,654,950 0.29%
iShares Semiconductor ETF 1,013,044 $1,400,391,504 2.93%
VANGUARD MID-CAP INDEX FUND 1,011,166 $1,397,795,432 0.62%
VanEck Semiconductor ETF 680,921 $941,277,954 1.22%
iShares Core S&P 500 ETF 676,390 $935,014,480 0.11%
Fidelity Blue Chip Growth Fund 629,056 $897,052,728 0.91%
State Street(R) SPDR(R) S&P 500(R) ETF Trust 595,136 $822,692,201 0.11%
Fidelity 500 Index Fund 637,752 $808,522,853 0.09%
VANGUARD GROWTH INDEX FUND 531,364 $734,536,339 0.19%
Direxion Daily Semiconductor Bull 3X Shares 361,069 $514,895,226 2.65%
VANGUARD MID-CAP GROWTH INDEX FUND 357,562 $494,279,406 1.42%
State Street(R) Technology Select Sector SPDR(R) ETF 339,173 $468,859,188 0.38%
T. Rowe Price Blue Chip Growth Fund, Inc. 329,941 $456,097,241 0.71%
VANGUARD INFORMATION TECHNOLOGY INDEX FUND 358,546 $454,553,862 0.27%
Fidelity Advisor Semiconductors Fund 269,822 $384,774,267 5.34%
VANGUARD INSTITUTIONAL INDEX FUND 266,724 $368,708,589 0.11%
MFS Mid Cap Growth Fund 281,458 $356,824,009 2.75%
Franklin Dynatech Fund 250,000 $345,590,000 1.14%
First Trust Rising Dividend Achievers ETF 230,674 $318,874,511 1.30%
Invesco NASDAQ 100 ETF 225,561 $285,959,469 0.27%
Select Technology Portfolio 211,578 $268,232,241 0.73%
Franklin Growth Fund 186,831 $258,267,701 1.48%
iShares Russell 1000 Growth ETF 180,568 $249,609,980 0.19%
Invesco American Franchise Fund 173,636 $220,130,512 1.26%
Fidelity Blue Chip Growth K6 Fund 149,242 $212,823,569 1.03%
Invesco Discovery Mid Cap Growth Fund 137,139 $195,564,328 2.89%
Invesco S&P 500 Equal Weight ETF 126,757 $180,759,285 0.19%
State Street(R) SPDR(R) Portfolio S&P 500(R) ETF 116,931 $161,640,737 0.11%
Schwab S&P 500 Index Fund 109,714 $156,455,455 0.11%
Equity Income Fund 108,721 $155,039,408 1.95%
Strategic Advisers Fidelity U.S. Total Stock Fund 120,955 $153,343,120 0.06%
Schwab U.S. Large-Cap Growth ETF 119,310 $151,257,639 0.24%
iShares S&P 500 Growth ETF 103,334 $142,844,788 0.19%
Fidelity Series Blue Chip Growth Fund 97,700 $139,323,131 0.85%
Fidelity Puritan Fund 106,795 $135,391,497 0.41%
Fidelity Contrafund 86,903 $120,131,231 0.07%
Fidelity Total Market Index Fund 93,881 $119,019,515 0.08%
iShares MSCI USA Momentum Factor ETF 76,968 $109,758,677 0.43%
Lord Abbett Growth Leaders Fund 76,196 $108,657,782 1.46%
State Street(R) SPDR(R) Portfolio S&P 500(R) Growth ETF 73,331 $101,369,841 0.19%
Nomura Mid Cap Growth Fund 72,841 $100,692,485 3.36%
VANGUARD RUSSELL 1000 GROWTH INDEX FUND 76,975 $97,586,596 0.18%
Fidelity Series Total Market Index Fund 76,622 $97,139,073 0.08%
Fidelity Growth Company Fund 73,622 $93,335,763 0.10%
First Trust NASDAQ-100-Technology Sector Index Fund 66,762 $92,289,118 1.85%
Virtus KAR Mid-Cap Core Fund 66,171 $91,472,144 5.21%
Fidelity Large Cap Growth Index Fund 62,252 $88,773,220 0.21%
Showing 1–50 of 1,108 positions
Key facts CIK 1280452 CUSIP 609839105 13F (30d) 482 filings 455 filers Visit website Investor relations