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Livermore
Livermore
ZHEN

Silphium Asset Management Ltd

SEC CIK
0001758440
Latest filing
Jul 30, 2026

The latest 13F from Silphium Asset Management Ltd covers Q2 2026 (filed Jul 30, 2026): 55 long positions worth $296.6M. The top 10 holdings make up 74.9% of the portfolio, and the largest is Vanguard S&P 500 ETF at 47.9%. 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
9
Est. +$4.31M
Added
32
Est. +$11.4M
Reduced
6
Est. −$2.83M
Sold out
2
Est. −$13.4M

Top 5 holdings

Share of this quarter's portfolio value

  1. Vanguard S&P 500 ETF922908363
    47.9%$142.1M
  2. Vanguard Intl Equity Index F922042866
    7.9%$23.5M
  3. Vanguard Intl Equity Index F922042874
    3.0%$8.98M
  4. NVDANVIDIA Corp
    2.9%$8.63MHistory
  5. iShares Tr464287184
    2.8%$8.29M

Biggest buys

New and added positions, by estimated amount bought

  1. INTCIntel Corp
    +$1.07MAddedHistory
  2. State Street Financial Select Sector SPDR ETF81369Y605
    +$943.5KAdded
  3. AMDAdvanced Micro Devices Inc
    +$914.9KAddedHistory
  4. CATCaterpillar Inc
    +$903.0KAddedHistory
  5. MUMicron Technology Inc
    +$692.6KAddedHistory

Largest weight increases

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

  1. MUMicron Technology Inc
    +0.76 pp0.3% → 1.0%History
  2. INTCIntel Corp
    +0.61 pp0.1% → 0.7%History
  3. AMDAdvanced Micro Devices Inc
    +0.56 pp0.2% → 0.7%History
  4. CATCaterpillar Inc
    +0.46 pp0.5% → 0.9%History
  5. GOOGLAlphabet Inc.
    +0.42 pp1.9% → 2.4%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. iShares Inc464286392
    −$12.3MSold out
  2. State Street Energy Select Sector SPDR ETF81369Y506
    −$1.22MReduced
  3. MGAMagna International Inc
    −$1.12MSold outHistory
  4. TERTeradyne, Inc
    −$580.6KReducedHistory
  5. LLYEli Lilly & Co
    −$393.4KReducedHistory

Largest weight decreases

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

  1. iShares Inc464286392
    −4.65 pp4.7% → 0.0%
  2. State Street Energy Select Sector SPDR ETF81369Y506
    −0.71 pp1.3% → 0.6%
  3. MGAMagna International Inc
    −0.42 pp0.4% → 0.0%History
  4. AAPLApple Inc.
    −0.05 pp1.9% → 1.9%History
  5. TERTeradyne, Inc
    −0.02 pp0.4% → 0.4%History

Metrics

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

Portfolio value
$296.6M
+$32.6M (+12.4%) vs. prior quarter
Positions
55
+7 vs. prior quarter
Top 10 concentration
74.9%
Top 10 as share of value
Turnover
5.6%
Q2 2026, one quarter
Average holding period
5.6 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 $338.0M (Q3 2025)

Q1 2021: $211.7MQ2 2021: $253.4MQ3 2021: $247.1MQ4 2021: $104.4MQ1 2022: $84.1MQ2 2022: $59.2MQ3 2022: $111.2MQ4 2022: $100.0MQ1 2023: $118.3MQ2 2023: $201.5MQ3 2023: $307.4MQ4 2023: $187.8MQ1 2024: $193.1MQ2 2024: $209.0MQ3 2024: $277.7MQ4 2024: $274.4MQ1 2025: $124.1MQ2 2025: $280.7MQ3 2025: $338.0MQ4 2025: $235.9MQ1 2026: $264.0MQ2 2026: $296.6M
Q1 2021Q2 2026
13F filings of Silphium Asset Management Ltd by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Jul 30, 202655$296.6MVanguard S&P 500 ETFVanguard Intl Equity Index FVanguard Intl Equity Index Fvs. Q1 2026SEC
Q1 2026May 5, 202648$264.0MVanguard S&P 500 ETFVanguard Intl Equity Index FiShares Incvs. Q4 2025SEC
Q4 2025Jan 27, 202646$235.9MVanguard S&P 500 ETFVanguard Intl Equity Index FNVDAvs. Q3 2025SEC
Q3 2025Nov 4, 202538$338.0MVanguard S&P 500 ETFVanguard Star FDSiShares Trvs. Q2 2025SEC
Q2 2025Aug 13, 202535$280.7MVanguard S&P 500 ETFVanguard Star FDSiShares Iboxx $ Investment Grade Corporate Bond ETFvs. Q1 2025SEC
Q1 2025Apr 30, 202529$124.1MWMTCOSTFISVvs. Q4 2024SEC
Q4 2024Feb 6, 202551$274.4MJNPRHESKvs. Q3 2024SEC
Q3 2024Jan 30, 202547$277.7MEDRCTLTJNPRvs. Q2 2024SEC
Q2 2024Jan 30, 202550$209.0MCTLTJNPRXvs. Q1 2024SEC
Q1 2024Jan 30, 202544$193.1MPXDJNPRWRKvs. Q4 2023SEC
Q4 2023Jan 30, 202541$187.8MSPLKAVGOPXDvs. Q3 2023SEC
Q3 2023Jan 30, 202558$307.4MATVISGENHZNPvs. Q2 2023SEC
Q2 2023Jan 30, 202551$201.5MATVIHZNPiShares Russell 2000 ETFvs. Q1 2023SEC
Q1 2023Jan 30, 202532$118.3MATVIHZNPOSHvs. Q4 2022SEC
Q4 2022Jan 30, 202540$100.0MHZNPCOWNMYOVvs. Q3 2022SEC
Q3 2022Jan 30, 202542$111.2MGBTNLSNTWTRvs. Q2 2022SEC
Q2 2022Jan 30, 202529$59.2MCoherent IncVonage Holdings CorpiShares Russell 2000 ETFvs. Q1 2022SEC
Q1 2022Jan 30, 202559$84.1MVonage Holdings CorpCoherent IncFBCvs. Q4 2021SEC
Q4 2021Jan 30, 202546$104.4MINFONUANXLNXvs. Q3 2021SEC
Q3 2021Jan 30, 2025105$247.1MNUANINFOXLNXvs. Q2 2021SEC
Q2 2021Jan 30, 202563$253.4MALXNWORKMXIMvs. Q1 2021SEC
Q1 2021Jan 30, 202548$211.7MMXIMWORKRealpage Inc–SEC