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Jim Simons

Jim Simons Renaissance Technologies

AUM $63.9B
1-Year Est. Return 45.56%
 

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
+2.8%
1 Year Est. Return
+45.56%
3 Year Est. Return
+129.95%
5 Year Est. Return
+153.6%
10 Year Est. Return
+738.31%
AUM
$64.5B
AUM Growth
-$11.3B
Cap. Flow
-$10.1B
Cap. Flow %
-15.68%
Top 10 Hldgs %
12.13%
Holding
3,923
New
466
Increased
1,028
Reduced
1,682
Closed
737

Top Buys

Rank Stock Value
1
COST icon
Costco
COST
+$616M
2
NFLX icon
Netflix
NFLX
+$481M
3
MU icon
Micron Technology
MU
+$416M
4
TSLA icon
Tesla
TSLA
+$416M
5
PG icon
Procter & Gamble
PG
+$322M

Top Sells

Rank Stock Value
1
NVDA icon
NVIDIA
NVDA
+$885M
2
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$660M
3
GOOG icon
Alphabet (Google) Class C
GOOG
+$463M
4
APP icon
Applovin
APP
+$430M
5
META icon
Meta Platforms (Facebook)
META
+$354M

Sector Composition

Rank Sector Weight
1 Technology 20.84%
2 Healthcare 15.77%
3 Consumer Discretionary 13.88%
4 Industrials 9.94%
5 Financials 8.79%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
NWG icon
3601
NatWest
NWG
$75.8B
– –
-417,700
Closed -$5.91M
NWN icon
3602
Northwest Natural Holdings
NWN
$2.12B
– –
-66,900
Closed -$3.01M
NWPX icon
3603
NWPX Infrastructure Inc
NWPX
$1.08B
– –
-12,697
Closed -$672K
NWSA icon
3604
News Corp Class A
NWSA
$15.5B
– –
-309,500
Closed -$9.5M
NXDT
3605
NexPoint Diversified Real Estate Trust
NXDT
$243M
– –
-82,435
Closed -$304K
O icon
3606
Realty Income
O
$58.6B
– –
-144,744
Closed -$8.8M
TEAD
3607
Teads Holding Co
TEAD
$65.6M
– –
-46,200
Closed -$76.2K
OBK icon
3608
Origin Bancorp
OBK
$1.66B
– –
-9,400
Closed -$324K
OCFT
3609
DELISTED
OneConnect Financial Technology
OCFT
– –
-119,360
Closed -$905K
OCG icon
3610
Oriental Culture Holding
OCG
$3.31M
– –
-32
Closed -$78.6K
ODP
3611
DELISTED
ODP
ODP
– –
-194,992
Closed -$5.43M
OIH icon
3612
VanEck Oil Services ETF
OIH
$1.97B
– –
-4,390
Closed -$1.14M
OKTA icon
3613
Okta
OKTA
$26.1B
– –
-129,300
Closed -$11.9M
OLN icon
3614
Olin
OLN
$2.17B
– –
-73,000
Closed -$1.82M
OMER icon
3615
Omeros
OMER
$984M
– –
-344,500
Closed -$1.41M
OMF icon
3616
OneMain Financial
OMF
$7.32B
– –
-118,300
Closed -$6.68M
OMH icon
3617
Ohmyhome Ltd
OMH
$3.26M
– –
-16,000
Closed -$20.3K
OPK icon
3618
Opko Health
OPK
$1.04B
– –
-59,700
Closed -$92.5K
OPTT icon
3619
Ocean Power Technologies
OPTT
$55.1M
– –
-485,617
Closed -$245K
OPTX icon
3620
Syntec Optics
OPTX
$357M
– –
-26,282
Closed -$40.7K
ORI icon
3621
Old Republic International
ORI
$10.2B
– –
-151,385
Closed -$6.43M
ORLY icon
3622
O'Reilly Automotive
ORLY
$74.9B
– –
-365,210
Closed -$39.4M
OSK icon
3623
Oshkosh
OSK
$9.62B
– –
-50,600
Closed -$6.56M
OUST icon
3624
Ouster
OUST
$3.25B
– –
-783,000
Closed -$21.2M
PAAA icon
3625
PGIM AAA CLO ETF
PAAA
$11.3B
– –
-604,143
Closed -$31.1M
143 144
145
146 147

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Jim Simons's Q4 2025 Portfolio in Review

As of Q4 2025, Jim Simons held 3,923 positions worth $64.5B, down 15% from $75.8B the previous quarter. Its ten largest holdings account for 12% of the portfolio.

Jim Simons withdrew a net $10.1B in Q4 2025, closing 737 positions and reducing 1,682 holdings. Its most notable exit was Meta Platforms (Facebook), an estimated $354M position sold in full.

By sector, the portfolio is most concentrated in Technology at 21% of assets, down from 22% a quarter earlier, followed by Healthcare and Consumer Discretionary.

Against the trend, Jim Simons opened a new position in ServiceNow worth $204M.

  • Jim Simons's largest Q4 2025 buy was ServiceNow: 1,331,977 shares worth $204M.
  • Jim Simons added most to Costco in Q4 2025, an estimated $616M increase.
  • Jim Simons's biggest Q4 2025 reduction was NVIDIA, cutting an estimated $885M.
  • Jim Simons fully exited Meta Platforms (Facebook) in Q4 2025, selling an estimated $354M.
  • Jim Simons's ten largest holdings make up 12% of its $64.5B portfolio in Q4 2025.
  • Jim Simons opened 466 new positions and closed 737 in Q4 2025.
  • Jim Simons's portfolio value fell 15% quarter-over-quarter to $64.5B.

Based on Renaissance Technologies's 13F filing for Q4 2025, filed 12 Feb 2026.