Skip to main content
Livermore
Livermore
ZHEN

Brighton Securities Corp.

SEC CIK
0000014213
Latest filing
Jul 7, 2026

The latest 13F from Brighton Securities Corp. covers Q2 2026 (filed Jul 7, 2026): 50 long positions worth $232.8M. The top 10 holdings make up 85.6% of the portfolio, and the largest is Vanguard S&P 500 ETF at 31.4%. Livermore has 8 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
7
Est. +$1.67M
Added
33
Est. +$5.45M
Reduced
10
Est. −$328.9K
Sold out
4
Est. −$899.9K

Top 5 holdings

Share of this quarter's portfolio value

  1. Vanguard S&P 500 ETF922908363
    31.4%$73.2M
  2. Vanguard Intermediate-Term Bond ETF921937819
    14.6%$34.0M
  3. State Street SPDR Portfolio Developed World Ex-US ETF78463X889
    11.2%$26.0M
  4. Vanguard Index FDS922908652
    7.4%$17.2M
  5. Vanguard Morningstar Growth ETF922908736
    6.3%$14.6M

Biggest buys

New and added positions, by estimated amount bought

  1. Vanguard S&P 500 ETF922908363
    +$1.30MAdded
  2. Vanguard Intermediate-Term Bond ETF921937819
    +$662.8KAdded
  3. Vanguard Morningstar Growth ETF922908736
    +$536.3KAddedConverted for a 6-for-1 split
  4. State Street SPDR Portfolio Developed World Ex-US ETF78463X889
    +$529.0KAdded
  5. Vanguard Index FDS922908652
    +$381.4KAdded

Largest weight increases

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

  1. Vanguard S&P 500 ETF922908363
    +1.30 pp30.1% → 31.4%
  2. Vanguard Index FDS922908652
    +0.61 pp6.8% → 7.4%
  3. Vanguard Morningstar Growth ETF922908736
    +0.55 pp5.7% → 6.3%
  4. Invesco QQQ Tr04609E107
    +0.13 pp0.0% → 0.1%
  5. LLYEli Lilly & Co
    +0.11 pp0.0% → 0.1%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. VZVerizon Communications Inc
    −$263.7KSold outHistory
  2. Invesco QQQ Tr Unit Ser 1046090E10
    −$233.8KSold out
  3. ADIAnalog Devices Inc
    −$202.2KSold outHistory
  4. RTXRTX Corp
    −$200.3KSold outHistory
  5. XOMExxonMobil Holdings Corp
    −$152.8KReducedHistory

Largest weight decreases

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

  1. VZVerizon Communications Inc
    −0.13 pp0.1% → 0.0%History
  2. XOMExxonMobil Holdings Corp
    −0.13 pp0.2% → 0.1%History
  3. Invesco QQQ Tr Unit Ser 1046090E10
    −0.11 pp0.1% → 0.0%
  4. ADIAnalog Devices Inc
    −0.10 pp0.1% → 0.0%History
  5. RTXRTX Corp
    −0.10 pp0.1% → 0.0%History

Metrics

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

Portfolio value
$232.8M
+$25.2M (+12.2%) vs. prior quarter
Positions
50
+3 vs. prior quarter
Top 10 concentration
85.6%
Top 10 as share of value
Turnover
0.6%
Q2 2026, one quarter
Average holding period
6.6 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 (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 $232.8M (Q2 2026)

Q4 2024: $205.8MQ1 2025: $205.1MQ2 2025: $183.0MQ3 2025: $192.0MQ4 2025: $202.6MQ1 2026: $207.6MQ2 2026: $232.8M
Q4 2024Q2 2026
13F filings of Brighton Securities Corp. by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Jul 7, 202650$232.8MVanguard S&P 500 ETFVanguard Intermediate-Term Bond ETFState Street SPDR Portfolio Developed World Ex-US ETFvs. Q1 2026SEC
Q1 2026Apr 29, 202647$207.6MVanguard S&P 500 ETFVanguard Intermediate-Term Bond ETFState Street SPDR Portfolio Developed World Ex-US ETFvs. Q4 2025SEC
Q4 2025Mar 6, 202653$202.6MVanguard S&P 500 ETFVanguard Intermediate-Term Bond ETFState Street SPDR Portfolio Developed World Ex-US ETFvs. Q3 2025SEC
Q3 2025Mar 9, 2026Amended59$192.0MVanguard S&P 500 ETFVanguard Intermediate-Term Bond ETFState Street SPDR Portfolio Developed World Ex-US ETFvs. Q2 2025SEC
Q2 2025Mar 6, 202661$183.0MVanguard S&P 500 ETFVanguard Intermediate-Term Bond ETFState Street SPDR Portfolio Developed World Ex-US ETFvs. Q1 2025SEC
Q1 2025Mar 6, 202657$205.1MVanguard S&P 500 ETFVanguard Intermediate-Term Bond ETFState Street SPDR Portfolio Developed World Ex-US ETFvs. Q4 2024SEC
Q4 2024Mar 6, 202655$205.8MVanguard S&P 500 ETFVanguard Intermediate-Term Bond ETFState Street SPDR Portfolio Developed World Ex-US ETF–SEC