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Livermore
Livermore
ZHEN

Fox Run Management, L.L.C.

SEC CIK
0001533457
Latest filing
Aug 4, 2026

The latest 13F from Fox Run Management, L.L.C. covers Q2 2026 (filed Aug 4, 2026): 891 long positions worth $603.3M. The top 10 holdings make up 4.3% of the portfolio, and the largest is State Street Financial Select Sector SPDR ETF at 0.6%. 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
518
Est. +$330.0M
Added
179
Est. +$87.3M
Reduced
194
Est. −$121.6M
Sold out
483
Est. −$309.1M

Top 5 holdings

Share of this quarter's portfolio value

  1. State Street Financial Select Sector SPDR ETF81369Y605
    0.6%$3.90M
  2. BURLBurlington Stores, Inc.
    0.4%$2.64MHistory
  3. IDXXIDEXX Laboratories Inc
    0.4%$2.61MHistory
  4. ORCLOracle Corp
    0.4%$2.60MHistory
  5. SPXCSPX Technologies, Inc.
    0.4%$2.46MHistory

Biggest buys

New and added positions, by estimated amount bought

  1. State Street Financial Select Sector SPDR ETF81369Y605
    +$2.57MAdded
  2. UBERUber Technologies, Inc
    +$2.39MNewHistory
  3. BURLBurlington Stores, Inc.
    +$2.39MAddedHistory
  4. SNPSSynopsys Inc
    +$2.38MNewHistory
  5. PNRPENTAIR plc
    +$2.24MNewHistory

Largest weight increases

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

  1. State Street Financial Select Sector SPDR ETF81369Y605
    +0.44 pp0.2% → 0.6%
  2. UBERUber Technologies, Inc
    +0.40 pp0.0% → 0.4%History
  3. SNPSSynopsys Inc
    +0.39 pp0.0% → 0.4%History
  4. BURLBurlington Stores, Inc.
    +0.39 pp<0.1% → 0.4%History
  5. PNRPENTAIR plc
    +0.37 pp0.0% → 0.4%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. State Street Energy Select Sector SPDR ETF81369Y506
    −$7.29MReduced
  2. AMKRAmkor Technology, Inc.
    −$3.49MReducedHistory
  3. NXPINXP Semiconductors N.V.
    −$2.75MReducedHistory
  4. GNRCGenerac Holdings Inc.
    −$2.70MReducedHistory
  5. CMICummins Inc
    −$2.64MSold outHistory

Largest weight decreases

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

  1. State Street Energy Select Sector SPDR ETF81369Y506
    −1.52 pp1.6% → 0.1%
  2. CMICummins Inc
    −0.46 pp0.5% → 0.0%History
  3. FTITechnipFMC plc
    −0.41 pp0.4% → 0.0%History
  4. SYYSysco Corp
    −0.39 pp0.4% → 0.0%History
  5. WSTWest Pharmaceutical Services Inc
    −0.39 pp0.4% → 0.0%History

Metrics

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

Portfolio value
$603.3M
+$31.7M (+5.5%) vs. prior quarter
Positions
891
+35 vs. prior quarter
Top 10 concentration
4.3%
Top 10 as share of value
Turnover
71.0%
Q2 2026, one quarter
Average holding period
2.0 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 (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 $647.9M (Q4 2025)

Q1 2021: $55.5MQ2 2021: $109.9MQ3 2021: $158.8MQ4 2021: $169.7MQ1 2022: $179.6MQ2 2022: $200.3MQ3 2022: $257.1MQ4 2022: $249.1MQ1 2023: $307.0MQ2 2023: $355.5MQ3 2023: $337.9MQ4 2023: $392.1MQ1 2024: $463.5MQ2 2024: $531.4MQ3 2024: $449.4MQ4 2024: $550.7MQ1 2025: $645.6MQ2 2025: $600.2MQ3 2025: $641.4MQ4 2025: $647.9MQ1 2026: $571.6MQ2 2026: $603.3M
Q1 2021Q2 2026
13F filings of Fox Run Management, L.L.C. by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 4, 2026891$603.3MState Street Financial Select Sector SPDR ETFBURLIDXXvs. Q1 2026SEC
Q1 2026May 12, 2026856$571.6MState Street Energy Select Sector SPDR ETFCMISJMvs. Q4 2025SEC
Q4 2025Feb 11, 2026867$647.9MState Street Financial Select Sector SPDR ETFSPYiShares Russell 2000 ETFvs. Q3 2025SEC
Q3 2025Nov 12, 2025872$641.4MState Street Energy Select Sector SPDR ETFState Street Financial Select Sector SPDR ETFiShares Trvs. Q2 2025SEC
Q2 2025Aug 6, 2025813$600.2MState Street Financial Select Sector SPDR ETFRLState Street Energy Select Sector SPDR ETFvs. Q1 2025SEC
Q1 2025May 13, 2025870$645.6MState Street Energy Select Sector SPDR ETFState Street Financial Select Sector SPDR ETFiShares Trvs. Q4 2024SEC
Q4 2024Feb 11, 2025828$550.7MState Street Financial Select Sector SPDR ETFiShares TrFCXvs. Q3 2024SEC
Q3 2024Nov 12, 2024761$449.4MSPYiShares Russell 2000 ETFGMvs. Q2 2024SEC
Q2 2024Aug 13, 2024737$531.4MState Street Energy Select Sector SPDR ETFState Street Financial Select Sector SPDR ETFLDOSvs. Q1 2024SEC
Q1 2024May 13, 2024713$463.5MSPYiShares Russell 2000 ETFState Street Financial Select Sector SPDR ETFvs. Q4 2023SEC
Q4 2023Feb 13, 2024690$392.1MState Street Financial Select Sector SPDR ETFSPYiShares Russell 2000 ETFvs. Q3 2023SEC
Q3 2023Nov 7, 2023664$337.9MState Street Financial Select Sector SPDR ETFiShares TrDVNvs. Q2 2023SEC
Q2 2023Aug 11, 2023646$355.5MiShares TrState Street Energy Select Sector SPDR ETFAXTAvs. Q1 2023SEC
Q1 2023May 12, 2023619$307.0MiShares TrState Street Energy Select Sector SPDR ETFHONvs. Q4 2022SEC
Q4 2022Feb 7, 2023582$249.1MSPYiShares Russell 2000 ETFState Street Energy Select Sector SPDR ETFvs. Q3 2022SEC
Q3 2022Nov 7, 2022577$257.1MiShares Russell 2000 ETFSPYState Street Financial Select Sector SPDR ETFvs. Q2 2022SEC
Q2 2022Aug 12, 2022488$200.3MState Street Financial Select Sector SPDR ETFiShares Russell 2000 ETFSPYvs. Q1 2022SEC
Q1 2022May 10, 2022475$179.6MSPYiShares Russell 2000 ETFGMvs. Q4 2021SEC
Q4 2021Feb 9, 2022441$169.7MSPYiShares Russell 2000 ETFiShares Trvs. Q3 2021SEC
Q3 2021Nov 15, 2021446$158.8MState Street Energy Select Sector SPDR ETFBAXMDTvs. Q2 2021SEC
Q2 2021Aug 5, 2021331$109.9MState Street Financial Select Sector SPDR ETFState Street Energy Select Sector SPDR ETFCDNSvs. Q1 2021SEC
Q1 2021May 17, 2021194$55.5MJPMWMTSHW–SEC