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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
SENS icon
3701
Senseonics Holdings Inc
SENS
$416M
– –
-85,087
Closed -$742K
SF
3702
Stifel
SF
$12.7B
– –
-6,173
Closed -$467K
SGRY icon
3703
Surgery Partners
SGRY
$1.96B
– –
-262,000
Closed -$5.67M
SHM icon
3704
State Street SPDR Nuveen ICE Short Term Municipal Bond ETF
SHM
$3.47B
– –
-36,683
Closed -$1.77M
BNKK
3705
Bonk Inc
BNKK
$8.64M
– –
-16,619
Closed -$156K
SHYG icon
3706
iShares 0-5 Year High Yield Corporate Bond ETF
SHYG
$7.6B
– –
-28,202
Closed -$1.22M
SINT icon
3707
SiNtx Technologies
SINT
$11.3M
– –
-27,552
Closed -$113K
SIVR icon
3708
abrdn Physical Silver Shares ETF
SIVR
$4.5B
– –
-33,100
Closed -$1.47M
SLB icon
3709
SLB Ltd
SLB
$79.7B
– –
-372,836
Closed -$12.8M
SLF icon
3710
Sun Life Financial
SLF
$44.6B
– –
-53,600
Closed -$3.22M
SLGN icon
3711
Silgan Holdings
SLGN
$4.35B
– –
-6,980
Closed -$300K
SLI
3712
Standard Lithium
SLI
$603M
– –
-1,275,711
Closed -$4.3M
SLND icon
3713
Southland Holdings
SLND
$38.5M
– –
-65,250
Closed -$280K
SLS icon
3714
SELLAS Life Sciences
SLS
$2.17B
– –
-291,822
Closed -$470K
SM icon
3715
SM Energy
SM
$7.73B
– –
-10,500
Closed -$262K
SMH icon
3716
VanEck Semiconductor ETF
SMH
$70.6B
– –
-289,367
Closed -$94.4M
SNGX icon
3717
Soligenix
SNGX
$5.73M
– –
-72,900
Closed -$84.6K
SNOW icon
3718
Snowflake
SNOW
$116B
– –
-579,448
Closed -$131M
SOAR icon
3719
Volato Group
SOAR
$8.51M
– –
-26,800
Closed -$47.4K
SOFI icon
3720
SoFi Technologies
SOFI
$23.2B
– –
-1,776,800
Closed -$46.9M
SOL
3721
DELISTED
Emeren Group
SOL
– –
-46,489
Closed -$87.9K
SON icon
3722
Sonoco
SON
$5.71B
– –
-51,100
Closed -$2.2M
SOPA
3723
DELISTED
Society Pass
SOPA
– –
-27,377
Closed -$32.3K
SPDN icon
3724
Direxion Daily S&P 500 Bear 1X ETF
SPDN
$199M
– –
-70,700
Closed -$679K
SPGI icon
3725
S&P Global
SPGI
$120B
– –
-237,522
Closed -$116M
147 148
149
150 151

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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.