Institutional Manager · CIK 0001599330
Joel Isaacson & Co., LLC
NEW YORK, NY · File #028-15803
Latest AUM
$3.03B
Positions
460
Top-10 Concentration
67.9%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| ADD | SPDR SERIES TRUST | 78464A763 | +121,368 | +$16.9M | -$2.4M |
| ADD | SPDR S&P 500 ETF TR | SPY | +21,076 | +$14.4M | +$1.8M |
| ADD | SELECT SECTOR SPDR TR | 81369Y803 | +94,155 | +$13.6M | -$13.4M |
| ADD | ALPHABET INC | GOOG | +34,528 | +$10.8M | +$33.6M |
| ADD | VANGUARD INDEX FDS | 922908629 | +36,032 | +$10.5M | -$1.5M |
| ADD | ALPHABET INC | GOOG | +27,416 | +$8.6M | +$32.3M |
| ADD | NETFLIX INC | NFLX | +84,816 | +$8.0M | -$10.1M |
| NEW | CENCORA INC | COR | +22,815 | +$7.7M | $0 |
| ADD | VANGUARD WHITEHALL FDS | 921946406 | +49,887 | +$7.2M | +$2.5M |
| ADD | VANGUARD SPECIALIZED FUNDS | 921908844 | +29,430 | +$6.5M | +$5.1M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025460 pos · $3.03B
- 13F HOLDINGS REPORTQ/E Sep 2025447 pos · $2.77B
- 13F HOLDINGS REPORTQ/E Jun 2025418 pos · $2.46B
- 13F HOLDINGS REPORTQ/E Mar 2025398 pos · $2.21B
- 13F HOLDINGS REPORTQ/E Dec 2024377 pos · $2.22B
- 13F HOLDINGS REPORTQ/E Sep 2024369 pos · $2.10B
- 13F HOLDINGS REPORTQ/E Jun 2024349 pos · $1.90B
- 13F HOLDINGS REPORTQ/E Mar 2024334 pos · $1.82B
- 13F HOLDINGS REPORTQ/E Dec 2023306 pos · $1.46B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | SPDR SERIES TRUST | 78464A763 | 2,788,428 | $388.0M | 15.28% |
| 2 | VANGUARD SPECIALIZED FUNDS | 921908844 | 1,318,257 | $289.7M | 11.41% |
| 3 | VANGUARD INDEX FDS | 922908769 | 508,271 | $170.4M | 6.71% |
| 4 | ALPHABET INC | GOOG | 514,867 | $161.2M | 6.35% |
| 5 | ALPHABET INC | GOOG | 486,809 | $152.8M | 6.02% |
| 6 | VANGUARD WHITEHALL FDS | 921946406 | 1,027,796 | $147.5M | 5.81% |
| 7 | VANGUARD INDEX FDS | 922908629 | 465,531 | $135.1M | 5.32% |
| 8 | APPLE INC | AAPL | 450,300 | $122.4M | 4.82% |
| 9 | SPDR S&P 500 ETF TR | SPY | 134,670 | $91.8M | 3.62% |
| 10 | VANGUARD ADMIRAL FDS INC | 921932505 | 144,513 | $64.2M | 2.53% |
| 11 | MICROSOFT CORP | MSFT | 117,913 | $57.0M | 2.25% |
| 12 | VANGUARD INDEX FDS | 922908751 | 202,242 | $52.2M | 2.05% |
| 13 | ISHARES TR | 464287606 | 501,866 | $48.6M | 1.91% |
| 14 | DIMENSIONAL ETF TRUST | 25434V609 | 792,905 | $47.2M | 1.86% |
| 15 | AMAZON COM INC | AMZN | 182,952 | $42.2M | 1.66% |
| 16 | VANGUARD STAR FDS | 921909768 | 510,895 | $38.5M | 1.52% |
| 17 | VANGUARD INDEX FDS | 922908736 | 78,164 | $38.1M | 1.50% |
| 18 | META PLATFORMS INC | META | 55,738 | $36.8M | 1.45% |
| 19 | NVIDIA CORPORATION | NVDA | 162,694 | $30.3M | 1.19% |
| 20 | SELECT SECTOR SPDR TR | 81369Y803 | 191,586 | $27.6M | 1.09% |