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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
+17.5%
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
$75.8B
AUM Growth
+$582M
Cap. Flow
-$5.41B
Cap. Flow %
-7.14%
Top 10 Hldgs %
11.47%
Holding
4,038
New
516
Increased
1,457
Reduced
1,457
Closed
581

Top Sells

Rank Stock Value
1
HOOD icon
Robinhood
HOOD
+$1.04B
2
PLTR icon
Palantir
PLTR
+$800M
3
AAPL icon
Apple
AAPL
+$516M
4
NFLX icon
Netflix
NFLX
+$326M
5
NVDA icon
NVIDIA
NVDA
+$313M

Sector Composition

Rank Sector Weight
1 Technology 21.71%
2 Healthcare 15.16%
3 Consumer Discretionary 11.81%
4 Communication Services 10.53%
5 Financials 9.27%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
SBFM
3276
Sunshine Biopharma
SBFM
$2.85M
$83K ﹤0.01%
5,570
+161
+3% +$2.39K
BRNS
3277
Barinthus Biotherapeutics
BRNS
$24.5M
$82.9K ﹤0.01%
66,300
+30,000
+83% +$37.5K
OKYO
3278
OKYO Pharma
OKYO
$79.2M
$82.4K ﹤0.01%
+41,200
New +$105K
ASTI icon
3279
Ascent Solar Technologies
ASTI
$32.7M
$82K ﹤0.01%
+41,818
New +$85K
BMR icon
3280
Beamr Imaging
BMR
$19.7M
$81.7K ﹤0.01%
+26,700
New +$81.6K
STG
3281
Sunlands Technology
STG
$44.1M
$80.8K ﹤0.01%
+10,098
New +$92.4K
CARM
3282
DELISTED
Carisma Therapeutics
CARM
$80.5K ﹤0.01%
293,686
-35,600
-11% -$11.8K
HUHU
3283
HUHUTECH International Group
HUHU
$135M
$80.2K ﹤0.01%
+15,600
New +$102K
RVPH
3284
DELISTED
REVIVA PHARMA HLDGS INC
RVPH
$79.8K ﹤0.01%
+10,830
New +$92K
OCG icon
3285
Oriental Culture Holding
OCG
$3.24M
$78.6K ﹤0.01%
32
-6
-16% -$18K
SIEB icon
3286
Siebert Financial
SIEB
$78.1M
$78.5K ﹤0.01%
26,900
+4,900
+22% +$16.9K
DTI icon
3287
Drilling Tools International
DTI
$86.8M
$78.5K ﹤0.01%
34,111
+24,071
+240% +$52.9K
IMDX
3288
Insight Molecular Diagnostics
IMDX
$121M
$78.4K ﹤0.01%
23,600
-2,500
-10% -$7.05K
PMCB icon
3289
PharmaCyte Biotech
PMCB
$5.9M
$77.6K ﹤0.01%
80,000
+30,200
+61% +$30.1K
LWLG icon
3290
Lightwave Logic
LWLG
$1.12B
$76.5K ﹤0.01%
20,607
-2,993
-13% -$7.72K
TEAD
3291
Teads Holding Co
TEAD
$63.6M
$76.2K ﹤0.01%
46,200
-49,800
-52% -$105K
EVEX icon
3292
Eve Holding
EVEX
$976M
$76.2K ﹤0.01%
+20,000
New +$106K
CMTG icon
3293
Claros Mortgage Trust
CMTG
$268M
$75.4K ﹤0.01%
+22,700
New +$76.4K
KORE
3294
DELISTED
KORE Group Holdings
KORE
$74.9K ﹤0.01%
30,941
+2,300
+8% +$5.49K
ORGN
3295
DELISTED
Origin Materials
ORGN
$73.6K ﹤0.01%
4,730
-12,237
-72% -$227K
IPM
3296
Intelligent Protection Management Corp
IPM
$24.4M
$73K ﹤0.01%
36,700
+2,600
+8% +$5.16K
CASI
3297
DELISTED
CASI Pharmaceuticals
CASI
$72.9K ﹤0.01%
43,900
+4,700
+12% +$8.38K
GCL
3298
GCL Global Holdings
GCL
$61.8M
$72.5K ﹤0.01%
+28,900
New +$97.3K
ANEB
3299
DELISTED
Anebulo Pharmaceuticals
ANEB
$71.3K ﹤0.01%
+28,500
New +$67.1K
WAFU icon
3300
Wah Fu Education Group
WAFU
$6.31M
$71.2K ﹤0.01%
38,700
+16,800
+77% +$25.6K

Similar funds

Jim Simons's Q3 2025 Portfolio in Review

As of Q3 2025, Jim Simons held 4,038 positions worth $75.8B, up 0.77% from $75.2B the previous quarter. Its ten largest holdings account for 11% of the portfolio.

Jim Simons withdrew a net $5.41B in Q3 2025, closing 581 positions and reducing 1,457 holdings. Its most notable exit was GE Aerospace, an estimated $235M position sold in full.

By sector, the portfolio is most concentrated in Technology at 22% of assets, up from 20% a quarter earlier, followed by Healthcare and Consumer Discretionary.

Against the trend, Jim Simons opened a new position in Alphabet (Google) Class C worth $419M.

  • Jim Simons's largest Q3 2025 buy was Alphabet (Google) Class C: 1,720,002 shares worth $419M.
  • Jim Simons added most to Alphabet (Google) Class A in Q3 2025, an estimated $546M increase.
  • Jim Simons's biggest Q3 2025 reduction was Robinhood, cutting an estimated $1.04B.
  • Jim Simons fully exited GE Aerospace in Q3 2025, selling an estimated $235M.
  • Jim Simons's ten largest holdings make up 11% of its $75.8B portfolio in Q3 2025.
  • Jim Simons opened 516 new positions and closed 581 in Q3 2025.
  • Jim Simons's portfolio value rose 0.77% quarter-over-quarter to $75.8B.

Based on Renaissance Technologies's 13F filing for Q3 2025, filed 13 Nov 2025.