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Livermore
Livermore
ZHEN

Oppenheimer & Co Inc

SEC CIK
0000822581
Latest filing
Aug 3, 2026

The latest 13F from Oppenheimer & Co Inc covers Q2 2026 (filed Aug 3, 2026): 1,759 long positions worth $9.37B. The top 10 holdings make up 19.5% of the portfolio, and the largest is Apple Inc. (AAPL) at 3.5%. 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
179
Est. +$148.5M
Added
769
Est. +$436.0M
Reduced
719
Est. −$382.0M
Sold out
103
Est. −$65.7M

Top 5 holdings

Share of this quarter's portfolio value

  1. AAPLApple Inc.
    3.5%$327.6MHistory
  2. MSFTMicrosoft Corp
    2.9%$273.1MHistory
  3. NVDANVIDIA Corp
    2.7%$250.6MHistory
  4. AMZNAmazon Com Inc
    2.1%$192.3MHistory
  5. GOOGAlphabet Inc.
    1.7%$162.6MHistory

Share of portfolio

Top 5 holdings and the other 1,754 positions, by share of portfolio value

  1. AAPL3.5%
  2. MSFT2.9%
  3. NVDA2.7%
  4. AMZN2.1%
  5. GOOG1.7%
  6. Other 1,754 positions87.1%

Biggest buys

New and added positions, by estimated amount bought

  1. Vanguard Wellington FD921935508
    +$10.1MNew
  2. SPDR Series Trust78464A664
    +$9.06MNew
  3. HONAHoneywell Aerospace Inc.
    +$9.02MNewHistory
  4. SPCXSpace Exploration Technologies Corp
    +$8.98MNewHistory
  5. HONHoneywell International Inc
    +$8.96MNewHistory

Largest weight increases

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

  1. AMDAdvanced Micro Devices Inc
    +0.44 pp0.3% → 0.7%History
  2. MUMicron Technology Inc
    +0.43 pp0.2% → 0.6%History
  3. GLWCorning Inc
    +0.28 pp0.4% → 0.6%History
  4. GOOGLAlphabet Inc.
    +0.20 pp1.5% → 1.7%History
  5. LLYEli Lilly & Co
    +0.18 pp0.8% → 1.0%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. MRVLMarvell Technology, Inc.
    −$18.3MReducedHistory
  2. HONHoneywell International Inc
    −$16.4MSold outHistory
  3. VETVermilion Energy Inc.
    −$16.2MReducedHistory
  4. PLPlanet Labs PBC
    −$15.3MReducedHistory
  5. AMATApplied Materials Inc
    −$11.6MReducedHistory

Largest weight decreases

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

  1. MSFTMicrosoft Corp
    −0.50 pp3.4% → 2.9%History
  2. VETVermilion Energy Inc.
    −0.33 pp0.4% → 0.1%History
  3. METAMeta Platforms, Inc.
    −0.22 pp1.4% → 1.1%History
  4. HONHoneywell International Inc
    −0.20 pp0.2% → 0.0%History
  5. XOMExxonMobil Holdings Corp
    −0.19 pp0.6% → 0.4%History

Metrics

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

Portfolio value
$9.37B
+$1.16B (+14.1%) vs. prior quarter
Positions
1,759
+76 vs. prior quarter
Top 10 concentration
19.5%
Top 10 as share of value
Turnover
5.1%
Q2 2026, one quarter
Average holding period
16.7 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 (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 $9.37B (Q2 2026)

Q1 2021: $5.01BQ2 2021: $5.58BQ3 2021: $5.34BQ4 2021: $5.72BQ1 2022: $5.55BQ2 2022: $4.65BQ3 2022: $4.27BQ4 2022: $4.39BQ1 2023: $4.72BQ2 2023: $5.00BQ3 2023: $4.84BQ4 2023: $5.44BQ1 2024: $6.03BQ2 2024: $6.30BQ3 2024: $6.56BQ4 2024: $6.70BQ1 2025: $6.62BQ2 2025: $7.56BQ3 2025: $8.20BQ4 2025: $7.04BQ1 2026: $8.21BQ2 2026: $9.37B
Q1 2021Q2 2026
13F filings of Oppenheimer & Co Inc by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 3, 20261,759$9.37BAAPLMSFTNVDAvs. Q1 2026SEC
Q1 2026Apr 24, 20261,683$8.21BAAPLMSFTNVDAvs. Q4 2025SEC
Q4 2025Feb 2, 20261,523$7.04BMSFTNVDAGOOGLvs. Q3 2025SEC
Q3 2025Nov 6, 20251,646$8.20BMSFTAAPLNVDAvs. Q2 2025SEC
Q2 2025Jul 31, 20251,603$7.56BMSFTAAPLNVDAvs. Q1 2025SEC
Q1 2025Apr 23, 20251,564$6.62BMSFTAAPLNVDAvs. Q4 2024SEC
Q4 2024Feb 5, 20251,548$6.70BMSFTAAPLNVDAvs. Q3 2024SEC
Q3 2024Nov 5, 20241,506$6.56BMSFTAAPLNVDAvs. Q2 2024SEC
Q2 2024Aug 8, 20241,430$6.30BMSFTAAPLNVDAvs. Q1 2024SEC
Q1 2024May 7, 20241,436$6.03BMSFTAAPLNVDAvs. Q4 2023SEC
Q4 2023Feb 13, 20241,383$5.44BMSFTAAPLAMZNvs. Q3 2023SEC
Q3 2023Nov 8, 20231,375$4.84BMSFTAAPLAMZNvs. Q2 2023SEC
Q2 2023Aug 3, 20231,411$5.00BMSFTAAPLAMZNvs. Q1 2023SEC
Q1 2023May 10, 20231,378$4.72BMSFTAAPLBRK.Bvs. Q4 2022SEC
Q4 2022Feb 8, 20231,348$4.39BMSFTAAPLBRK.Bvs. Q3 2022SEC
Q3 2022Nov 14, 20221,360$4.27BAAPLMSFTAMZNvs. Q2 2022SEC
Q2 2022Aug 8, 20221,403$4.65BMSFTAAPLBRK.Bvs. Q1 2022SEC
Q1 2022May 12, 20221,463$5.55BAAPLMSFTAMZNvs. Q4 2021SEC
Q4 2021Feb 2, 20221,485$5.72BAAPLMSFTAMZNvs. Q3 2021SEC
Q3 2021Nov 12, 20211,485$5.34BAAPLMSFTAMZNvs. Q2 2021SEC
Q2 2021Aug 3, 20211,502$5.58BAAPLMSFTAMZNvs. Q1 2021SEC
Q1 2021May 10, 20211,432$5.01BAAPLMSFTAMZN–SEC