Rafferty Asset Management, LLC
Position in MPWR — Monolithic Power Systems, Inc.
CIK 1389426
New York, NY
Position in MPWR
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$634,887,536
+$287,778,432 QoQ
Shares Held
459,278
+44.7% QoQ
Ownership
0.935%
of shares outstanding
% of Portfolio
1.62%
of 13F equity value
Holder Rank
#19
of 1,244 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in MPWR Over Time
Shares Held
Position Value (USD)
Position in Semiconductors
Technology · as of Jun 30, 2026Rafferty Asset Management, LLC holds $20,227,521,535 across 26 Semiconductors names. MPWR ranks #12 (3.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MU |
Micron Technology Inc
|
3,081,122 | $3,556,508,313 | |
| 2 | NVDA |
Nvidia Corp
|
12,793,123 | $2,559,775,981 | |
| 3 | AMD |
Advanced Micro Devices Inc
|
3,455,156 | $2,007,134,671 | |
| 4 | AVGO |
Broadcom Inc.
|
4,476,607 | $1,691,038,294 | |
| 5 | INTC |
Intel Corp
|
11,127,772 | $1,553,770,804 | |
| 6 | MRVL |
Marvell Technology, Inc.
|
4,090,492 | $1,218,516,661 | |
| 7 | TSM |
Taiwan Semiconductor Manufacturing Co Ltd
|
2,004,572 | $957,323,450 | |
| 8 | TXN |
Texas Instruments Inc
|
2,761,559 | $823,137,891 |
All Filings in MPWR
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $634,887,536 | 459,278 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $347,109,104 | 317,473 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $359,339,111 | 396,464 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $349,215,323 | 379,318 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $386,990,711 | 529,124 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $225,528,122 | 388,855 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $248,037,681 | 419,195 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $361,543,290 | 391,069 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $324,798,600 | 395,286 | Shares | Sole | 2024-08-13 | |
| 2024-03-31 | $288,281,500 | 425,558 | Shares | Sole | 2024-05-13 | |
| 2023-12-31 | $192,357,622 | 304,952 | Shares | Sole | 2024-02-13 | |
| 2023-09-30 | $121,767,030 | 263,565 | Shares | Sole | 2023-11-13 | |
| 2023-06-30 | $149,967,848 | 277,600 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $106,648,556 | 213,067 | Shares | Sole | 2023-05-11 | |
| 2022-12-31 | $64,149,097 | 181,412 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $58,509,580 | 161,006 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $63,897,343 | 166,382 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $96,726,571 | 199,157 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $79,997,899 | 162,159 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $53,056,950 | 109,468 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $54,468,429 | 145,852 | Shares | Sole | 2021-08-10 | |
| 2021-03-31 | $45,089,728 | 127,657 | Shares | Sole | 2021-05-10 | |
| 2020-12-31 | $19,936,828 | 54,438 | Shares | Sole | 2021-02-10 | |
| 2020-09-30 | $15,268,383 | 54,606 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $11,403,966 | 48,118 | Shares | Sole | 2020-08-07 | |
| 2020-03-31 | $2,484,436 | 14,836 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||