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Livermore
Livermore
ZHEN

Ratan Capital Management LP

SEC CIK
0001566887
Latest filing
Aug 18, 2026

The latest 13F from Ratan Capital Management LP covers Q2 2026 (filed Aug 18, 2026): 47 long positions worth $309.8M. The top 10 holdings make up 68.7% of the portfolio, and the largest is Silicon Motion Technology CORP (SIMO) at 12.7%. Livermore has 22 filings on Form 13F from this institution, going back to Q1 2021.

What changed in Q2 2026

Share counts compared with Q1 2026: how many positions were new, added to, reduced or sold out, and the biggest buys and sells. Dollar amounts are estimated at the quarter-end prices implied by the filing.

Full comparison
New
20
Est. +$158.7M
Added
1
Est. +$9.54M
Reduced
14
Est. −$105.2M
Sold out
8
Est. −$76.7M

Top 5 holdings

Share of this quarter's portfolio value

  1. SIMOSilicon Motion Technology CORP
    12.7%$39.2MHistory
  2. VSTVistra Corp.
    8.3%$25.8MHistory
  3. INTCIntel Corp
    8.3%$25.6MHistory
  4. AMZNAmazon Com Inc
    7.3%$22.5MHistory
  5. QCOMQualcomm Inc
    6.5%$20.0MHistory

Share of portfolio

Top 5 holdings and the other 42 positions, by share of portfolio value

  1. SIMO12.7%
  2. VST8.3%
  3. INTC8.3%
  4. AMZN7.3%
  5. QCOM6.5%
  6. Other 42 positions57.0%

Biggest buys

New and added positions, by estimated amount bought

  1. SIMOSilicon Motion Technology CORP
    +$39.2MNewHistory
  2. QCOMQualcomm Inc
    +$20.0MNewHistory
  3. FRMIFermi Inc.
    +$19.8MNewHistory
  4. ARMArm Holdings PLC
    +$15.4MNewHistory
  5. MUMicron Technology Inc
    +$15.0MNewHistory

Largest weight increases

New and added positions, by percentage points of the portfolio gained

  1. SIMOSilicon Motion Technology CORP
    +12.65 pp0.0% → 12.7%History
  2. QCOMQualcomm Inc
    +6.47 pp0.0% → 6.5%History
  3. INTCIntel Corp
    +6.39 pp1.9% → 8.3%History
  4. FRMIFermi Inc.
    +6.38 pp0.0% → 6.4%History
  5. ARMArm Holdings PLC
    +4.98 pp0.0% → 5.0%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. METAMeta Platforms, Inc.
    −$31.4MReducedHistory
  2. NVDANVIDIA Corp
    −$30.3MSold outHistory
  3. AMZNAmazon Com Inc
    −$22.3MReducedHistory
  4. VSTVistra Corp.
    −$18.2MReducedHistory
  5. AVGOBroadcom Inc.
    −$12.9MSold outHistory

Largest weight decreases

Reduced and sold-out positions, by percentage points of the portfolio lost

  1. METAMeta Platforms, Inc.
    −11.85 pp12.0% → 0.2%History
  2. NVDANVIDIA Corp
    −11.27 pp11.3% → 0.0%History
  3. AMZNAmazon Com Inc
    −7.28 pp14.5% → 7.3%History
  4. AVGOBroadcom Inc.
    −4.81 pp4.8% → 0.0%History
  5. Invesco QQQ Trust Series I46090E103
    −3.36 pp3.5% → 0.2%

Metrics

13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$309.8M
+$40.5M (+15.0%) vs. prior quarter
Positions
47
+12 vs. prior quarter
Top 10 concentration
68.7%
Top 10 as share of value
Turnover
58.1%
Q2 2026, one quarter
Average holding period
4.5 quarters
Weighted by value

How these are calculated

  • Portfolio value: the market value of all long positions in the 13F, as reported at quarter end, excluding options.
  • Top 10 concentration: the combined value of the 10 largest positions as a share of portfolio value.
  • Turnover: the smaller of this quarter's estimated purchases and estimated sales, divided by the average of this and last quarter's portfolio value. Estimates multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares); new positions use this quarter's value and sold-out positions last quarter's. Only positions reported in shares count, and it is not calculated when the previous quarter was not filed.
  • Average holding period: how many consecutive quarters each current position has been held (including this one; a quarter without the position or without a filing starts the count over), weighted by this quarter's value. Counting starts with the first 13F in Livermore (Q1 2021), so positions held before then are understated.

13F filings by quarter

22 quarters, going back to Q1 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $1.15B (Q2 2021)

Q1 2021: $911.3MQ2 2021: $1.15BQ3 2021: $774.0MQ4 2021: $655.4MQ1 2022: $144.2MQ2 2022: $118.9MQ3 2022: $42.2MQ4 2022: $124.5MQ1 2023: $37.0MQ2 2023: $72.3MQ3 2023: $132.1MQ4 2023: $153.2MQ1 2024: $188.1MQ2 2024: $326.9MQ3 2024: $371.0MQ4 2024: $652.0MQ1 2025: $310.0MQ2 2025: $203.8MQ3 2025: $185.3MQ4 2025: $363.5MQ1 2026: $269.4MQ2 2026: $309.8M
Q1 2021Q2 2026
13F filings of Ratan Capital Management LP by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 18, 202647$309.8MSIMOVSTINTCvs. Q1 2026SEC
Q1 2026May 14, 202635$269.4MAMZNMETANVDAvs. Q4 2025SEC
Q4 2025Feb 12, 202638$363.5MNVDAAMZNMETAvs. Q3 2025SEC
Q3 2025Nov 14, 202529$185.3MVSTNVDAMETAvs. Q2 2025SEC
Q2 2025Aug 14, 202530$203.8MVRTMSFTAPPvs. Q1 2025SEC
Q1 2025May 14, 202532$310.0MMETANVDAAMZNvs. Q4 2024SEC
Q4 2024Feb 14, 202539$652.0MNVDATSLAVRTvs. Q3 2024SEC
Q3 2024Nov 14, 202432$371.0MNVDAVRTVSTvs. Q2 2024SEC
Q2 2024Aug 14, 202435$326.9MNVDAVRTVSTvs. Q1 2024SEC
Q1 2024May 14, 202439$188.1MVRTAMZNNVDAvs. Q4 2023SEC
Q4 2023Feb 14, 202442$153.2MVRTAMZNMSFTvs. Q3 2023SEC
Q3 2023Nov 14, 202332$132.1MVRTMETANVDAvs. Q2 2023SEC
Q2 2023Aug 15, 202330$72.3MVRTMETAAMZNvs. Q1 2023SEC
Q1 2023May 15, 202321$37.0MMETAAMZNJBIvs. Q4 2022SEC
Q4 2022Feb 14, 202328$124.5MInvesco QQQ Trust Series IAMZNMSFTvs. Q3 2022SEC
Q3 2022Nov 15, 202223$42.2MAMZNJBIMIRvs. Q2 2022SEC
Q2 2022Aug 16, 202232$118.9MInvesco QQQ Trust Series IAMZNNOWvs. Q1 2022SEC
Q1 2022May 16, 202240$144.2MAMZNMSFTFOURvs. Q4 2021SEC
Q4 2021Feb 14, 202278$655.4MAMZNMSFTJBIvs. Q3 2021SEC
Q3 2021Nov 15, 2021155$774.0MAMZNGS Acquisition Hldgs Corp IIJBIvs. Q2 2021SEC
Q2 2021Aug 16, 2021160$1.15BVRTAMZNGS Acquisition Hldgs Corp IIvs. Q1 2021SEC
Q1 2021May 21, 2021138$911.3MAMZNVRTALIT–SEC

13D and 13G filings

Companies where Ratan Capital Management LP reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

Ratan Capital Management LP does not currently report owning 5% or more of any company.

Latest filings

8 filings on file made by Ratan Capital Management LP or listing it as a reporting person, newest first.

Schedule 13D and 13G filings by Ratan Capital Management LP
CompanyFiled (ET)FormStakeChangeEvent dateFiling
JBIJanus International Group, Inc.Feb 14, 202213G/AOld format–––SEC
MIRMirion Technologies, Inc.Feb 14, 202213G/AOld format–––SEC
SSTSystem1, Inc.Feb 14, 202213G/AOld format–––SEC
CHP Merger Corp.Feb 14, 202213G/AOld format–––SEC
MIRMirion Technologies, Inc.Aug 24, 202113GOld format–New–SEC
Juniper Industrial Holdings, Inc.Apr 5, 202113GOld format–New–SEC
SSTSystem1, Inc.Mar 23, 202113GOld format–New–SEC
CHP Merger Corp.Mar 15, 202113GOld format–New–SEC