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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
BETR icon
3251
Better Home & Finance Holding
BETR
$280M
– –
-5,100
Closed -$286K
BFH icon
3252
Bread Financial
BFH
$4.46B
– –
-8,542
Closed -$476K
BFRI icon
3253
Biofrontera
BFRI
$16M
– –
-18,700
Closed -$18.4K
BG icon
3254
Bunge Global
BG
$21.5B
– –
-8,900
Closed -$723K
BIV icon
3255
Vanguard Intermediate-Term Bond ETF
BIV
$28.8B
– –
-20,700
Closed -$1.62M
BJRI icon
3256
BJ's Restaurants
BJRI
$1.48B
– –
-112,329
Closed -$3.43M
BKH icon
3257
Black Hills Corp
BKH
$5.58B
– –
-232,500
Closed -$14.3M
BKSY icon
3258
BlackSky Technology
BKSY
$1.3B
– –
-140,063
Closed -$2.82M
BKYI
3259
BIO-key International
BKYI
$4.09M
– –
-2,048
Closed -$14.7K
BLND icon
3260
Blend Labs
BLND
$331M
– –
-10,900
Closed -$39.8K
BLTE
3261
Belite Bio
BLTE
$7.17B
– –
-2,812
Closed -$208K
BND icon
3262
Vanguard Total Bond Market
BND
$161B
– –
-47,500
Closed -$3.53M
BOC icon
3263
Boston Omaha
BOC
$436M
– –
-193,100
Closed -$2.53M
BOTZ icon
3264
Global X Robotics & Artificial Intelligence ETF
BOTZ
$3.59B
– –
-47,594
Closed -$1.69M
BOXL icon
3265
Boxlight
BOXL
$5.25M
– –
-574
Closed -$49.8K
BR icon
3266
Broadridge
BR
$19.3B
– –
-52,800
Closed -$12.6M
BRKR icon
3267
Bruker
BRKR
$9.03B
– –
-139,610
Closed -$4.54M
BROS icon
3268
Dutch Bros
BROS
$8.91B
– –
-506,100
Closed -$26.5M
BRY
3269
DELISTED
Berry Corp
BRY
– –
-1,315,800
Closed -$4.97M
BSCQ icon
3270
Invesco BulletShares 2026 Corporate Bond ETF
BSCQ
$3.57B
– –
-31,486
Closed -$616K
BUFR icon
3271
FT Vest Fund of Buffer ETFs
BUFR
$10.4B
– –
-40,500
Closed -$1.35M
BULZ icon
3272
MicroSectors FANG & Innovation 3x Leveraged ETN
BULZ
$311M
– –
-44,000
Closed -$1.13M
BWX icon
3273
State Street SPDR Bloomberg International Treasury Bond ETF
BWX
$1.31B
– –
-61,750
Closed -$1.42M
C icon
3274
Citigroup
C
$231B
– –
-782,338
Closed -$79.4M
CAMT icon
3275
Camtek
CAMT
$8.13B
– –
-21,440
Closed -$2.25M
129 130
131
132 133

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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.