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Jim Simons

Jim Simons Renaissance Technologies

AUM $72.6B
1-Year Est. Return 54.88%
 

Jim Simons is the founder of Renaissance Technologies, one of the most successful quantitative hedge funds in the world. Before his career in finance, he served as a mathematics professor and made significant contributions to differential geometry. Simons applied his analytical expertise to develop sophisticated, algorithm-driven trading strategies, earning consistently high returns for investors.

This Fund
S&P 500
This Quarter Est. Return
+1.01%
1 Year Est. Return
+54.88%
3 Year Est. Return
+169.34%
5 Year Est. Return
+186.18%
10 Year Est. Return
+887.93%
AUM
$66.1B
AUM Growth
-$1.48B
Cap. Flow
+$425M
Cap. Flow %
0.64%
Top 10 Hldgs %
10.65%
Holding
3,989
New
456
Increased
1,472
Reduced
1,441
Closed
583

Top Buys

Rank Stock Value
1
AVGO icon
Broadcom
AVGO
+$513M
2
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$412M
3
META icon
Meta Platforms (Facebook)
META
+$354M
4
NOW icon
ServiceNow
NOW
+$262M
5
AAL icon
American Airlines Group
AAL
+$259M

Top Sells

Rank Stock Value
1
PLTR icon
Palantir
PLTR
+$571M
2
AAPL icon
Apple
AAPL
+$571M
3
NFLX icon
Netflix
NFLX
+$388M
4
NVDA icon
NVIDIA
NVDA
+$313M
5
TSM icon
TSMC
TSM
+$211M

Sector Composition

Rank Sector Weight
1 Technology 17.32%
2 Healthcare 15.28%
3 Consumer Discretionary 11.85%
4 Financials 11.11%
5 Industrials 8.48%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
IDU icon
3626
iShares US Utilities ETF
IDU
$1.38B
– –
-2,600
Closed -$250K
IDXX icon
3627
Idexx Laboratories
IDXX
$44.7B
– –
-25,000
Closed -$10.3M
IEO icon
3628
iShares US Oil & Gas Exploration & Production ETF
IEO
$589M
– –
-2,400
Closed -$215K
IEMG icon
3629
iShares Core MSCI Emerging Markets ETF
IEMG
$159B
– –
-182,500
Closed -$9.53M
IEUR icon
3630
iShares Core MSCI Europe ETF
IEUR
$9.15B
– –
-11,600
Closed -$626K
IGV icon
3631
iShares Expanded Tech-Software Sector ETF
IGV
$15.2B
– –
-15,100
Closed -$1.51M
QTEX
3632
QTREX Quantum
QTEX
$55.7M
– –
-36,622
Closed -$37.4K
IJH icon
3633
iShares Core S&P Mid-Cap ETF
IJH
$128B
– –
-89,100
Closed -$5.55M
IJK icon
3634
iShares S&P Mid-Cap 400 Growth ETF
IJK
$11.3B
– –
-16,900
Closed -$1.54M
IJR icon
3635
iShares Core S&P Small-Cap ETF
IJR
$113B
– –
-40,300
Closed -$4.64M
IJT icon
3636
iShares S&P Small-Cap 600 Growth ETF
IJT
$8.43B
– –
-2,500
Closed -$338K
ILF icon
3637
iShares Latin America 40 ETF
ILF
$3.69B
– –
-39,700
Closed -$830K
IMMR icon
3638
Immersion
IMMR
$248M
– –
-210,848
Closed -$1.84M
INDA icon
3639
iShares MSCI India ETF
INDA
$6.58B
– –
-55,300
Closed -$2.91M
INKT icon
3640
MiNK Therapeutics
INKT
$54.8M
– –
-10,171
Closed -$70.9K
INMB icon
3641
INmune Bio
INMB
$57.7M
– –
-185,800
Closed -$868K
INSM icon
3642
Insmed
INSM
$27.6B
– –
-25,287
Closed -$1.75M
IOT icon
3643
Samsara
IOT
$24B
– –
-764,300
Closed -$33.4M
IP icon
3644
International Paper
IP
$21.8B
– –
-910,700
Closed -$49M
IQLT icon
3645
iShares MSCI Intl Quality Factor ETF
IQLT
$14.3B
– –
-22,600
Closed -$839K
ITOT icon
3646
iShares Core S&P Total US Stock Market ETF
ITOT
$98.5B
– –
-43,100
Closed -$5.54M
ITW icon
3647
Illinois Tool Works
ITW
$82.9B
– –
-15,500
Closed -$3.93M
IUSV icon
3648
iShares Core S&P US Value ETF
IUSV
$28B
– –
-11,000
Closed -$1.02M
IVE icon
3649
iShares S&P 500 Value ETF
IVE
$50.3B
– –
-13,500
Closed -$2.58M
IVV icon
3650
iShares Core S&P 500 ETF
IVV
$910B
– –
-27,000
Closed -$15.9M
144 145
146
147 148

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Jim Simons's Q1 2025 Portfolio in Review

As of Q1 2025, Jim Simons held 3,989 positions worth $66.1B, down 2.2% from $67.6B the previous quarter. Its ten largest holdings account for 11% of the portfolio.

Jim Simons's Q1 2025 filing shows 456 new, 1,472 increased, 1,441 reduced and 583 closed positions. Its largest new stake was ServiceNow: 1,361,505 shares worth $217M. The largest sale was Palantir, an estimated $571M.

By sector, the portfolio is most concentrated in Technology at 17% of assets, down from 21% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • Jim Simons's largest Q1 2025 buy was ServiceNow: 1,361,505 shares worth $217M.
  • Jim Simons added most to Broadcom in Q1 2025, an estimated $513M increase.
  • Jim Simons's biggest Q1 2025 reduction was Palantir, cutting an estimated $571M.
  • Jim Simons fully exited Nike in Q1 2025, selling an estimated $197M.
  • Jim Simons's ten largest holdings make up 11% of its $66.1B portfolio in Q1 2025.
  • Jim Simons opened 456 new positions and closed 583 in Q1 2025.
  • Jim Simons's portfolio value fell 2.2% quarter-over-quarter to $66.1B.

Based on Renaissance Technologies's 13F filing for Q1 2025, filed 14 May 2025.