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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 Buys

Rank Stock Value
1
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$546M
2
MSFT icon
Microsoft
MSFT
+$480M
3
GOOG icon
Alphabet (Google) Class C
GOOG
+$362M
4
META icon
Meta Platforms (Facebook)
META
+$350M
5
KO icon
Coca-Cola
KO
+$266M

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
BANR icon
3501
Banner Corp
BANR
$2.5B
– –
-3,800
Closed -$244K
BBCA icon
3502
JPMorgan BetaBuilders Canada ETF
BBCA
$11.4B
– –
-22,700
Closed -$1.83M
BBJP icon
3503
JPMorgan BetaBuilders Japan ETF
BBJP
$19.2B
– –
-73,400
Closed -$4.53M
BDX icon
3504
Becton Dickinson
BDX
$49.6B
– –
-271,391
Closed -$46.7M
BFLY icon
3505
Butterfly Network
BFLY
$2.36B
– –
-505,753
Closed -$1.01M
BGS icon
3506
B&G Foods
BGS
$299M
– –
-127,500
Closed -$539K
BHF icon
3507
Brighthouse Financial
BHF
$3.42B
– –
-107,100
Closed -$5.76M
BILI icon
3508
Bilibili
BILI
$7.14B
– –
-50,200
Closed -$1.08M
BNY
3509
Bank of New York Mellon
BNY
$110B
– –
-298,111
Closed -$27.2M
BL icon
3510
BlackLine
BL
$1.82B
– –
-4,400
Closed -$249K
BLDR icon
3511
Builders FirstSource
BLDR
$7.91B
– –
-262,341
Closed -$30.6M
BN icon
3512
Brookfield
BN
$111B
– –
-71,045
Closed -$2.93M
BNDX icon
3513
Vanguard Total International Bond ETF
BNDX
$83B
– –
-559,200
Closed -$27.7M
BNL icon
3514
Broadstone Net Lease
BNL
$4.35B
– –
-136,800
Closed -$2.2M
BOF icon
3515
BranchOut Food
BOF
$68.2M
– –
-15,683
Closed -$38.1K
BOOT icon
3516
Boot Barn
BOOT
$4.92B
– –
-3,200
Closed -$486K
BORR
3517
Borr Drilling
BORR
$1.25B
– –
-1,625,501
Closed -$2.97M
BPMC
3518
DELISTED
Blueprint Medicines
BPMC
– –
-674,500
Closed -$86.5M
BRBR icon
3519
BellRing Brands
BRBR
$1.28B
– –
-981,751
Closed -$56.9M
BRDG
3520
DELISTED
Bridge Investment Group
BRDG
– –
-71,400
Closed -$715K
BRFS
3521
DELISTED
BRF SA
BRFS
– –
-8,520,760
Closed -$31.1M
BRKL
3522
DELISTED
Brookline Bancorp
BRKL
– –
-989,013
Closed -$10.4M
BRZE icon
3523
Braze
BRZE
$3.36B
– –
-295,000
Closed -$8.29M
BTAL icon
3524
AGF US Market Neutral Anti-Beta Fund
BTAL
$297M
– –
-85,680
Closed -$1.52M
BTBT icon
3525
Bit Digital
BTBT
$520M
– –
-126,972
Closed -$278K
139 140
141
142 143

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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.