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Livermore
Livermore
ZHEN

Clear Street Group Inc.

SEC CIK
0001881567
Latest filing
Aug 12, 2026

The latest 13F from Clear Street Group Inc. covers Q2 2026 (filed Aug 12, 2026): 1,364 long positions worth $31.6B. The top 10 holdings make up 68.3% of the portfolio, and the largest is Sandisk Corp (SNDK) at 21.5%. Livermore has 4 filings on Form 13F from this institution, going back to Q3 2025.

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
382
Est. +$2.59B
Added
386
Est. +$6.57B
Reduced
466
Est. −$2.07B
Sold out
83
Est. −$205.8M

Top 5 holdings

Share of this quarter's portfolio value

  1. SNDKSandisk Corp
    21.5%$6.78BHistory
  2. NVDANVIDIA Corp
    19.4%$6.14BHistory
  3. AMDAdvanced Micro Devices Inc
    6.4%$2.01BHistory
  4. AAPLApple Inc.
    3.4%$1.09BHistory
  5. MSFTMicrosoft Corp
    3.4%$1.08BHistory

Share of portfolio

Top 5 holdings and the other 1,359 positions, by share of portfolio value

  1. SNDK21.5%
  2. NVDA19.4%
  3. AMD6.4%
  4. AAPL3.4%
  5. MSFT3.4%
  6. Other 1,359 positions45.9%

Biggest buys

New and added positions, by estimated amount bought

  1. SNDKSandisk Corp
    +$4.00BAddedHistory
  2. Roundhill ETF Trust77926X320
    +$1.07BNew
  3. WDCWestern Digital Corp
    +$368.6MAddedHistory
  4. SPCXSpace Exploration Technologies Corp
    +$217.0MNewHistory
  5. AAOIApplied Optoelectronics, Inc.
    +$182.4MNewHistory

Largest weight increases

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

  1. SNDKSandisk Corp
    +17.10 pp4.4% → 21.5%History
  2. Roundhill ETF Trust77926X320
    +3.38 pp0.0% → 3.4%
  3. NBISNebius Group N.V.
    +1.38 pp1.8% → 3.2%History
  4. WDCWestern Digital Corp
    +1.29 pp0.4% → 1.7%History
  5. SPCXSpace Exploration Technologies Corp
    +0.69 pp0.0% → 0.7%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. AMDAdvanced Micro Devices Inc
    −$1.18BReducedHistory
  2. NVDANVIDIA Corp
    −$223.9MReducedHistory
  3. UNHUnitedHealth Group Inc
    −$160.2MReducedHistory
  4. BRK.BBerkshire Hathaway Inc
    −$92.2MSold outHistory
  5. ASTSAST SpaceMobile, Inc.
    −$86.6MReducedHistory

Largest weight decreases

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

  1. NVDANVIDIA Corp
    −11.71 pp31.1% → 19.4%History
  2. AAPLApple Inc.
    −1.94 pp5.4% → 3.4%History
  3. METAMeta Platforms, Inc.
    −1.92 pp4.2% → 2.3%History
  4. COINCoinbase Global, Inc.
    −1.43 pp2.5% → 1.1%History
  5. BMNRBitmine Immersion Technologies, Inc.
    −1.09 pp1.6% → 0.5%History

Metrics

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

Portfolio value
$31.6B
+$13.8B (+77.4%) vs. prior quarter
Positions
1,364
+299 vs. prior quarter
Top 10 concentration
68.3%
Top 10 as share of value
Turnover
9.2%
Q2 2026, one quarter
Average holding period
3.2 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 (Q3 2025), so positions held before then are understated.

13F filings by quarter

4 quarters, going back to Q3 2025. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $31.6B (Q2 2026)

Q3 2025: $20.5BQ4 2025: $19.1BQ1 2026: $17.8BQ2 2026: $31.6B
Q3 2025Q2 2026
13F filings of Clear Street Group Inc. by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 12, 20261,364$31.6BSNDKNVDAAMDvs. Q1 2026SEC
Q1 2026May 15, 20261,065$17.8BNVDAAMDMSFTvs. Q4 2025SEC
Q4 2025Feb 13, 2026913$19.1BNVDAMSFTAMDvs. Q3 2025SEC
Q3 2025Nov 14, 2025815$20.5BNVDAMSTRMSFT–SEC