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Livermore
Livermore
ZHEN

PEAK6 LLC

SEC CIK
0001389958
Latest filing
Aug 12, 2026

The latest 13F from PEAK6 LLC covers Q2 2026 (filed Aug 12, 2026): 850 long positions worth $4.12B. The top 10 holdings make up 43.5% of the portfolio, and the largest is CoreWeave, Inc. (CRWV) at 19.5%. Livermore has 11 filings on Form 13F from this institution, going back to Q4 2024.

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
340
Est. +$662.2M
Added
188
Est. +$989.0M
Reduced
268
Est. −$1.29B
Sold out
298
Est. −$534.5M

Top 5 holdings

Share of this quarter's portfolio value

  1. CRWVCoreWeave, Inc.
    19.5%$802.0MHistory
  2. BULLWebull Corp
    4.7%$193.3MHistory
  3. TSMTaiwan Semiconductor Manufacturing Co Ltd
    3.5%$142.7MHistory
  4. MSFTMicrosoft Corp
    3.1%$127.1MHistory
  5. METAMeta Platforms, Inc.
    2.6%$108.3MHistory

Biggest buys

New and added positions, by estimated amount bought

  1. MSFTMicrosoft Corp
    +$127.1MAddedHistory
  2. CRWVCoreWeave, Inc.
    +$123.8MAddedHistory
  3. AAPLApple Inc.
    +$103.8MAddedHistory
  4. METAMeta Platforms, Inc.
    +$58.5MAddedHistory
  5. iShares Tr464287432
    +$40.3MAdded

Largest weight increases

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

  1. CRWVCoreWeave, Inc.
    +4.23 pp15.3% → 19.5%History
  2. MSFTMicrosoft Corp
    +3.09 pp<0.1% → 3.1%History
  3. AAPLApple Inc.
    +2.52 pp<0.1% → 2.5%History
  4. METAMeta Platforms, Inc.
    +1.17 pp1.5% → 2.6%History
  5. SPCXSpace Exploration Technologies Corp
    +0.90 pp0.0% → 0.9%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. MUMicron Technology Inc
    −$127.9MReducedHistory
  2. ETOReToro Group Ltd.
    −$68.1MReducedHistory
  3. SNDKSandisk Corp
    −$63.2MReducedHistory
  4. GLDSPDR Gold Trust
    −$49.9MReducedHistory
  5. ARMArm Holdings PLC
    −$49.5MReducedHistory

Largest weight decreases

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

  1. GLDSPDR Gold Trust
    −2.30 pp3.9% → 1.6%History
  2. ETOReToro Group Ltd.
    −1.35 pp3.0% → 1.6%History
  3. TSLATesla, Inc.
    −1.29 pp1.3% → 0.0%History
  4. GSGoldman Sachs Group Inc
    −1.02 pp1.0% → <0.1%History
  5. CVXChevron Corp
    −0.89 pp1.1% → 0.2%History

Metrics

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

Portfolio value
$4.12B
+$655.9M (+19.0%) vs. prior quarter
Positions
850
+42 vs. prior quarter
Top 10 concentration
43.5%
Top 10 as share of value
Turnover
43.6%
Q2 2026, one quarter
Average holding period
4.0 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 (Q4 2024), so positions held before then are understated.

13F filings by quarter

7 quarters, going back to Q4 2024. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $4.12B (Q2 2026)

Q4 2024: $2.55BQ1 2025: $2.56BQ2 2025: $2.94BQ3 2025: $3.99BQ4 2025: $3.66BQ1 2026: $3.46BQ2 2026: $4.12B
Q4 2024Q2 2026
13F filings of PEAK6 LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 12, 2026850$4.12BCRWVBULLTSMvs. Q1 2026SEC
Q1 2026May 14, 2026808$3.46BCRWVBULLGLDvs. Q4 2025SEC
Q4 2025Mar 12, 2026Amended736$3.66BCRWVBULLGOOGLvs. Q3 2025SEC
Q3 2025Mar 31, 2026Amended731$3.99BBULLCRWVAVGOvs. Q2 2025SEC
Q2 2025Mar 26, 2026Amended743$2.94BBULLCRWVHOODvs. Q1 2025SEC
Q1 2025May 14, 2025761$2.56BTSMInvesco QQQ Trust Series IARMvs. Q4 2024SEC
Q4 2024Feb 13, 2025771$2.55BTSMNVDAMSTR–SEC

13D and 13G filings

Companies where PEAK6 LLC reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

2 companies, largest stake first.

Companies where PEAK6 LLC owns 5% or more
CompanyLatest formStakeChangeFirst filedLatest filingFiling
BULLWebull Corp13G/A6.70%28.2M shares+1.20 ppfrom 5.50%Aug 14, 20252 filingsFeb 10, 2026SEC
REIRing Energy, Inc.13G6.60%17.1M sharesNewAug 13, 20261 filingAug 13, 2026SEC

Latest filings

4 filings on file made by PEAK6 LLC or listing it as a reporting person, newest first.

Schedule 13D and 13G filings by PEAK6 LLC
CompanyFiled (ET)FilerFormStakeChangeEvent dateFiling
REIRing Energy, Inc.Aug 13, 20268:41 PM ETPEAK6 LLCand 7 others13G6.60%17.1M sharesNewJun 30, 2026SEC
BULLWebull CorpFeb 11, 20264:06 PM ETPEAK6 Capital Management LLCand 6 others13G6.70%28.2M sharesNewDec 31, 2025SEC
BULLWebull CorpFeb 10, 20269:56 PM ETPEAK6 LLCand 6 others13G/A6.70%28.2M shares+1.20 ppfrom 5.50%Jun 30, 2025SEC
BULLWebull CorpAug 14, 20259:12 AM ETPEAK6 LLCand 6 others13G5.50%26.6M sharesNewJun 30, 2025SEC