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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
+2.8%
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
$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

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
BITB icon
1476
Bitwise Bitcoin ETF
BITB
$2.42B
$3.79M 0.01%
79,700
+65,100
+446% +$3.54M
HYD icon
1477
VanEck High Yield Muni ETF
HYD
$4.4B
$3.78M 0.01%
73,923
-76,777
-51% -$3.91M
BLZE icon
1478
Backblaze
BLZE
$1.19B
$3.78M 0.01%
810,752
+393,936
+95% +$2.7M
GDX icon
1479
VanEck Gold Miners ETF
GDX
$27.5B
$3.77M 0.01%
44,000
+29,700
+208% +$2.35M
CWH icon
1480
Camping World
CWH
$657M
$3.77M 0.01%
387,400
+167,100
+76% +$2.07M
SCHB icon
1481
Schwab US Broad Market ETF
SCHB
$45.1B
$3.77M 0.01%
143,700
+133,800
+1,352% +$3.48M
EPM icon
1482
Evolution Petroleum
EPM
$132M
$3.76M 0.01%
1,062,297
+2,300
+0.2% +$9.7K
CWBC
1483
Community West Bancshares
CWBC
$709M
$3.76M 0.01%
167,008
+77,000
+86% +$1.69M
BHB icon
1484
Bar Harbor Bankshares
BHB
$680M
$3.76M 0.01%
120,984
+5,296
+5% +$161K
SFNC icon
1485
Simmons First National
SFNC
$3.46B
$3.76M 0.01%
199,257
+165,400
+489% +$3.06M
NOA
1486
North American Construction
NOA
$374M
$3.75M 0.01%
261,200
-35,200
-12% -$501K
DCOM icon
1487
Dime Commercial Bancshares
DCOM
$1.81B
$3.74M 0.01%
124,416
-22,900
-16% -$661K
CCSI icon
1488
Consensus Cloud Solutions
CCSI
$718M
$3.73M 0.01%
170,800
+8,400
+5% +$207K
INTT icon
1489
inTEST
INTT
$176M
$3.72M 0.01%
498,037
-21,900
-4% -$173K
ELPC icon
1490
Copel
ELPC
$7.66B
$3.72M 0.01%
+390,992
New +$3.73M
LTRX icon
1491
Lantronix
LTRX
$290M
$3.72M 0.01%
634,194
-300
-0% -$1.56K
NRIM icon
1492
Northrim BanCorp
NRIM
$605M
$3.71M 0.01%
139,600
-105,550
-43% -$2.5M
GABC icon
1493
German American Bancorp
GABC
$1.93B
$3.71M 0.01%
94,749
+47,500
+101% +$1.87M
APPS icon
1494
Digital Turbine
APPS
$1.52B
$3.71M 0.01%
+742,300
New +$4.2M
IWO icon
1495
iShares Russell 2000 Growth ETF
IWO
$15.1B
$3.71M 0.01%
11,480
+10,380
+944% +$3.38M
ARKB icon
1496
ARK 21Shares Bitcoin ETF
ARKB
$2.41B
$3.71M 0.01%
127,600
+81,000
+174% +$2.69M
KLIC icon
1497
Kulicke & Soffa
KLIC
$5.07B
$3.71M 0.01%
81,328
-47,500
-37% -$2.01M
VIR icon
1498
Vir Biotechnology
VIR
$1.54B
$3.71M 0.01%
614,464
-552,636
-47% -$3.29M
RNGR icon
1499
Ranger Energy Services
RNGR
$407M
$3.7M 0.01%
264,990
+43,650
+20% +$593K
INTR icon
1500
Inter&Co
INTR
$2.27B
$3.7M 0.01%
436,520
+30,070
+7% +$266K

Similar funds

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.