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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
OMH icon
3426
Ohmyhome Ltd
OMH
$8.02M
$20.3K ﹤0.01%
+16,000
New +$20.2K
SJ icon
3427
Scienjoy Holding
SJ
$39.1M
$19.8K ﹤0.01%
30,544
+1,740
+6% +$1.34K
WYHG
3428
Wing Yip Food Holdings
WYHG
$68.8M
$19.6K ﹤0.01%
+3,800
New +$20.4K
INTJ
3429
Intelligent Group
INTJ
$5.04M
$19.2K ﹤0.01%
1,940
+1,305
+206% +$22.9K
ZEO
3430
Zeo Energy
ZEO
$22M
$18.6K ﹤0.01%
+13,766
New +$27.8K
BFRI icon
3431
Biofrontera
BFRI
$16.1M
$18.4K ﹤0.01%
+18,700
New +$16.9K
SYNX icon
3432
Silynxcom
SYNX
$7.03M
$18.2K ﹤0.01%
12,300
-1,400
-10% -$2.34K
MBIO icon
3433
Mustang Bio
MBIO
$4.5M
$17.9K ﹤0.01%
+11,800
New +$21K
MKDW
3434
MKDWELL Tech Inc
MKDW
$49.1M
$16.9K ﹤0.01%
+2,606
New +$16.8K
USEA icon
3435
United Maritime
USEA
$25.8M
$16.7K ﹤0.01%
+10,200
New +$16.5K
NXPL icon
3436
NextPlat
NXPL
$22M
$16.2K ﹤0.01%
1,960
+60
+3% +$455
MYND
3437
Mynd.ai
MYND
$18.1M
$14.8K ﹤0.01%
15,744
-100
-0.6% -$76
BKYI
3438
BIO-key International
BKYI
$4.1M
$14.7K ﹤0.01%
+2,048
New +$16K
ENFY
3439
DELISTED
Enlightify Inc
ENFY
$14.6K ﹤0.01%
18,087
+4,436
+32% +$4.48K
TMDE
3440
TMD Energy Limited
TMDE
$17.5M
$14.4K ﹤0.01%
+17,400
New +$16.7K
RTB
3441
RTB Digital
RTB
$236M
$13.9K ﹤0.01%
1,346
-1,853
-58% -$23.2K
CLPS icon
3442
CLPS Inc
CLPS
$26.1M
$13.3K ﹤0.01%
13,032
MRDN
3443
Meridian Holdings Inc
MRDN
$178M
$12.9K ﹤0.01%
+950
New +$15.6K
PETZ icon
3444
TDH Holdings
PETZ
$15.5M
$12.6K ﹤0.01%
11,800
+800
+7% +$830
RANI icon
3445
Rani Therapeutics
RANI
$89.7M
$12.4K ﹤0.01%
+24,908
New +$13K
ESLA icon
3446
Estrella Immunopharma
ESLA
$31.2M
$12.3K ﹤0.01%
+10,689
New +$10.3K
MHUA
3447
DELISTED
Meihua International Medical Technologies
MHUA
$11.1K ﹤0.01%
306
+65
+27% +$2.66K
ITP icon
3448
IT Tech Packaging
ITP
$2.88M
$9.83K ﹤0.01%
+34,024
New +$7.26K
LEXX icon
3449
Lexaria Bioscience
LEXX
$13.4M
$9.62K ﹤0.01%
+673
New +$9.77K
TLIH
3450
Ten-League International
TLIH
$16.9M
$8.25K ﹤0.01%
+1,121
New +$16.5K

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.