iShares S&P 100 ETF
1,100 hedge funds and large institutions have $22.9B invested in iShares S&P 100 ETF in 2025 Q4 according to their latest regulatory filings, with 164 funds opening new positions, 418 increasing their positions, 277 reducing their positions, and 43 closing their positions.
281% more first-time investments, than exits
New positions opened: 164 | Existing positions closed: 43
51% more repeat investments, than reductions
Existing positions increased: 418 | Existing positions reduced: 277
16% more funds holding in top 10
Funds holding in top 10: 80 → 93 (+13)
10% more funds holding
Funds holding: 1,001 → 1,100 (+99)
1% more capital invested
Capital invested by funds: $22.6B → $22.9B (+$232M)
12.14% less ownership
Funds ownership: 91.42% → 79.28% (-12%)
42% less call options, than puts
Call options by funds: $17.7B | Put options by funds: $30.4B
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
QFA
Quantum Financial Advisors
El Segundo,
California
|
+$125M |
| 2 |
LPL Financial
San Diego,
California
|
+$98.8M |
| 3 |
Focus Partners Wealth
Boston,
Massachusetts
|
+$93.7M |
| 4 |
Wells Fargo
San Francisco,
California
|
+$60.2M |
| 5 |
Morgan Stanley
New York
|
+$50.1M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AAP
Arax Advisory Partners
Denver,
Colorado
|
-$2.6B |
| 2 |
BCM
BlueCrest Capital Management
St Helier,
Jersey
|
-$308M |
| 3 |
Kovitz Investment Group Partners
Chicago,
Illinois
|
-$119M |
| 4 |
Citigroup
New York
|
-$58.5M |
| 5 |
NI
Natural Investments
Windsor,
California
|
-$56.8M |
OEF Hedge Fund Activity: Q4 2025 in Review
1,100 of the 8,284 institutional investors tracked by Wall St. Rank reported a position in iShares S&P 100 ETF (OEF) for Q4 2025, worth a combined $22.9B — up 1% from $22.6B a quarter earlier.
Buyers outnumbered sellers: 164 funds opened new OEF positions and 43 closed out — a net gain of 121 holders — while 418 added to existing stakes and 277 trimmed.
The largest buyer was Quantum Financial Advisors, opening a new position worth an estimated $125M. The largest seller was Arax Advisory Partners, cutting an estimated $2.6B.
- 1,100 institutional investors held iShares S&P 100 ETF (OEF) as of Q4 2025, up from 1,001 in Q3 2025.
- Funds reported $22.9B of iShares S&P 100 ETF stock for Q4 2025, up 1% quarter-over-quarter.
- 164 funds opened new iShares S&P 100 ETF positions in Q4 2025 and 43 closed out, a net change of +121 holders.
- The largest iShares S&P 100 ETF buyer in Q4 2025 was Quantum Financial Advisors, an estimated $125M added.
- The largest iShares S&P 100 ETF seller in Q4 2025 was Arax Advisory Partners, an estimated $2.6B sold.
Based on aggregated 13F filings for Q4 2025.