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Livermore
Livermore
ZHEN

J. Mark Nickell & Co.

SEC CIK
0001811161
Latest filing
Aug 11, 2026

The latest 13F from J. Mark Nickell & Co. covers Q2 2026 (filed Aug 11, 2026): 30 long positions worth $125.4M. The top 10 holdings make up 80.9% of the portfolio, and the largest is iShares MSCI USA Quality Factor ETF at 14.0%. Livermore has 4 filings on Form 13F from this institution, going back to Q4 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
6
Est. +$17.7M
Added
15
Est. +$3.87M
Reduced
9
Est. −$1.90M
Sold out
8
Est. −$15.5M

Top 5 holdings

Share of this quarter's portfolio value

  1. iShares MSCI USA Quality Factor ETF46432F339
    14.0%$17.6M
  2. iShares Tr46438G240
    11.8%$14.8M
  3. Vanguard S&P 500 ETF922908363
    10.6%$13.2M
  4. Gmo ETF Trust90139K100
    9.8%$12.3M
  5. JPMorgan Ultra-Short Income ETF46641Q837
    8.7%$10.9M

Biggest buys

New and added positions, by estimated amount bought

  1. iShares Tr46438G240
    +$14.8MNew
  2. JPMorgan Ultra-Short Income ETF46641Q837
    +$948.3KAdded
  3. iShares Tr46435G417
    +$867.3KNew
  4. iShares Tr46436E767
    +$708.9KNew
  5. iShares Tr46436E155
    +$676.5KNew

Largest weight increases

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

  1. iShares Tr46438G240
    +11.80 pp0.0% → 11.8%
  2. iShares Tr46435G417
    +0.69 pp0.0% → 0.7%
  3. iShares MSCI USA Quality Factor ETF46432F339
    +0.64 pp13.4% → 14.0%
  4. iShares Tr46436E767
    +0.57 pp0.0% → 0.6%
  5. Gmo ETF Trust90139K100
    +0.54 pp9.2% → 9.8%

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. iShares Tr46434V613
    −$12.8MSold out
  2. iShares Tr464287291
    −$1.02MReduced
  3. iShares Tr464288638
    −$799.6KSold out
  4. BlackRock ETF Trust09290C509
    −$576.2KSold out
  5. iShares Tr464288802
    −$444.3KSold out

Largest weight decreases

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

  1. iShares Tr46434V613
    −11.53 pp11.5% → 0.0%
  2. iShares Tr464288638
    −0.72 pp0.7% → 0.0%
  3. BlackRock ETF Trust09290C509
    −0.52 pp0.5% → 0.0%
  4. iShares Tr464288802
    −0.40 pp0.4% → 0.0%
  5. HCAHCA Healthcare, Inc.
    −0.21 pp0.2% → 0.0%History

Metrics

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

Portfolio value
$125.4M
+$14.6M (+13.2%) vs. prior quarter
Positions
30
−2 vs. prior quarter
Top 10 concentration
80.9%
Top 10 as share of value
Turnover
14.7%
Q2 2026, one quarter
Average holding period
2.7 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 2025), so positions held before then are understated.

13F filings by quarter

3 quarters, going back to Q4 2025. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $125.4M (Q2 2026)

Q4 2025: $108.3MQ1 2026: $110.7MQ2 2026: $125.4M
Q4 2025Q2 2026
13F filings of J. Mark Nickell & Co. by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 11, 202630$125.4MiShares MSCI USA Quality Factor ETFiShares TrVanguard S&P 500 ETFvs. Q1 2026SEC
Q1 2026May 20, 2026Amended32$110.7MiShares MSCI USA Quality Factor ETFiShares TrVanguard S&P 500 ETFvs. Q4 2025SEC
Q4 2025Feb 13, 202630$108.3MiShares MSCI USA Quality Factor ETFVanguard S&P 500 ETFiShares Tr–SEC