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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
RLI icon
3676
RLI Corp
RLI
$5.87B
– –
-219,900
Closed -$14.3M
RLX icon
3677
RLX Technology
RLX
$2.42B
– –
-869,300
Closed -$2.29M
RMCO icon
3678
Royalty Management
RMCO
$48.1M
– –
-15,600
Closed -$33.1K
ROST icon
3679
Ross Stores
ROST
$80.8B
– –
-214,633
Closed -$32.7M
RTO icon
3680
Rentokil
RTO
$12.4B
– –
-50,400
Closed -$1.27M
RVMD icon
3681
Revolution Medicines
RVMD
$44.1B
– –
-253,104
Closed -$11.8M
RVPH
3682
DELISTED
REVIVA PHARMA HLDGS INC
RVPH
– –
-10,830
Closed -$79.8K
RTB
3683
RTB Digital
RTB
$232M
– –
-1,346
Closed -$13.9K
RXST icon
3684
RxSight
RXST
$293M
– –
-138,700
Closed -$1.25M
RYLD icon
3685
Global X Russell 2000 Covered Call ETF
RYLD
$1.39B
– –
-37,900
Closed -$570K
SABS icon
3686
SAB Biotherapeutics
SABS
$342M
– –
-80,840
Closed -$162K
SAND
3687
DELISTED
Sandstorm Gold
SAND
– –
-1,625,700
Closed -$20.4M
SARK icon
3688
Tradr 2X Long Innovation ETFShort Innovation Daily ETF
SARK
$39.4M
– –
-15,900
Closed -$456K
SBFM
3689
Sunshine Biopharma
SBFM
$2.93M
– –
-5,570
Closed -$83K
SBSW icon
3690
Sibanye-Stillwater
SBSW
$7.51B
– –
-431,304
Closed -$4.85M
SCHD icon
3691
Schwab US Dividend Equity ETF
SCHD
$107B
– –
-260,474
Closed -$7.11M
SCHI icon
3692
Schwab 5-10 Year Corporate Bond ETF
SCHI
$11.4B
– –
-85,296
Closed -$1.97M
SCHL icon
3693
Scholastic
SCHL
$780M
– –
-35,300
Closed -$967K
SCHP icon
3694
Schwab US TIPS ETF
SCHP
$16.2B
– –
-391,000
Closed -$10.5M
SCPH
3695
DELISTED
scPharmaceuticals
SCPH
– –
-23,216
Closed -$132K
SCS
3696
DELISTED
Steelcase
SCS
– –
-341,100
Closed -$5.87M
SCWO icon
3697
374Water
SCWO
$40.6M
– –
-17,586
Closed -$50.5K
SDIV icon
3698
Global X SuperDividend ETF
SDIV
$1.21B
– –
-61,700
Closed -$1.48M
SDVY icon
3699
First Trust SMID Cap Rising Dividend Achievers ETF
SDVY
$11.8B
– –
-10,200
Closed -$388K
SEE
3700
DELISTED
Sealed Air
SEE
– –
-277,100
Closed -$9.8M
146 147
148
149 150

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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.