Monolithic Power Systems, Inc.
US ˙ NasdaqGS ˙ US6098391054

SecurityMPWR / Monolithic Power Systems, Inc.
InstitutionRYDEX VARIABLE TRUST - Technology Fund Variable Annuity
Latest Disclosed Ownership132 shares
Latest Disclosed Value $ 96,542
RYDEX VARIABLE TRUST - Technology Fund Variable Annuity reports 13.79% increase in ownership of MPWR / Monolithic Power Systems, Inc.

On August 27, 2025 - RYDEX VARIABLE TRUST - Technology Fund Variable Annuity filed a NPORT-P form disclosing ownership of 132 shares of Monolithic Power Systems, Inc. (US:MPWR) valued at $96,542 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 29, 2025 disclosing 116 shares of Monolithic Power Systems, Inc.. This represents a change in shares of 13.79% during the quarter. The current value of the position is $195,499 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2025-08-27 2025-06-30 NP Monolithic Power Systems EC US6098391054 132 16 13.79 97 43.28 0.3246
2025-05-29 2025-03-31 NP Monolithic Power Systems EC US6098391054 116 -79 -40.51 67 -41.74 0.3950
2025-03-03 2024-12-31 NP Monolithic Power Systems EC US6098391054 195 100 105.26 115 32.18 0.5019
2024-11-29 2024-09-30 NP Monolithic Power Systems EC US6098391054 95 -29 -23.39 88 -13.86 0.4422
2024-08-29 2024-06-30 NP Monolithic Power Systems EC US6098391054 124 -19 -13.29 102 5.21 0.4527
2024-05-30 2024-03-31 NP Monolithic Power Systems EC US6098391054 143 -11 -7.14 97 -1.03 0.3710
2024-02-29 2023-12-31 NP Monolithic Power Systems EC US6098391054 154 -8 -4.94 97 31.08 0.4035
2023-11-29 2023-09-30 NP Monolithic Power Systems EC US6098391054 162 -14 -7.95 75 -22.11 0.3449
2023-08-28 2023-06-30 NP Monolithic Power Systems EC US6098391054 176 -20 -10.20 95 -3.06 0.4184
2023-05-30 2023-03-31 NP Monolithic Power Systems EC US6098391054 196 -9 -4.39 98 36.11 0.4704
2023-02-28 2022-12-31 NP Monolithic Power Systems EC US6098391054 205 18 9.63 72 7.46 0.4688
2022-11-29 2022-09-30 NP Monolithic Power Systems EC US6098391054 187 0 0.00 68 -5.63 0.4658
2022-08-29 2022-06-30 NP Monolithic Power Systems EC US6098391054 187 -22 -10.53 72 -29.70 0.4748
2022-05-26 2022-03-31 NP Monolithic Power Systems EC US6098391054 209 -51 -19.62 102 -21.09 0.4813
2022-02-28 2021-12-31 NP Monolithic Power Systems EC US6098391054 260 5 1.96 128 4.07 0.4219
2021-11-29 2021-09-30 NP Monolithic Power Systems EC US6098391054 255 -6 -2.30 124 26.80 0.4523
2021-08-27 2021-06-30 NP Monolithic Power Systems EC US6098391054 261 -26 -9.06 97 -3.96 0.4016
2021-05-27 2021-03-31 NP Monolithic Power Systems EC US6098391054 287 -11 -3.69 101 -7.34 0.4207
2021-03-01 2020-12-31 NP Monolithic Power Systems EC US6098391054 298 -14 -4.49 109 25.29 0.4309
2020-11-25 2020-09-30 NP Monolithic Power Systems EC US6098391054 312 -14 -4.29 87 12.99 0.4190
2020-08-27 2020-06-30 NP Monolithic Power Systems EC US6098391054 326 -159 -32.78 77 2.67 0.4061
2019-11-27 2019-09-30 NP Monolithic Power Systems EC US6098391054 485 485 75 0.3481
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.