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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
+3.01%
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
$63.9B
AUM Growth
-$531M
Cap. Flow
+$1.07B
Cap. Flow %
1.67%
Top 10 Hldgs %
11.2%
Holding
3,809
New
624
Increased
1,320
Reduced
1,262
Closed
596

Top Buys

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$800M
2
NVDA icon
NVIDIA
NVDA
+$304M
3
AVGO icon
Broadcom
AVGO
+$261M
4
LIN icon
Linde
LIN
+$237M
5
JPM icon
JPMorgan Chase
JPM
+$208M

Top Sells

Rank Stock Value
1
COST icon
Costco
COST
+$656M
2
NFLX icon
Netflix
NFLX
+$632M
3
TSLA icon
Tesla
TSLA
+$474M
4
PG icon
Procter & Gamble
PG
+$428M
5
MU icon
Micron Technology
MU
+$332M

Sector Composition

Rank Sector Weight
1 Technology 22.04%
2 Healthcare 15.35%
3 Industrials 11.13%
4 Consumer Discretionary 10.88%
5 Financials 10.52%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
YIBO icon
3751
Planet Image International
YIBO
$72.9M
– –
-20,682
Closed -$19.6K
ZENV
3752
DELISTED
Zenvia
ZENV
– –
-104,601
Closed -$101K
ZEUS
3753
DELISTED
Olympic Steel
ZEUS
– –
-45,198
Closed -$1.93M
ZETA icon
3754
Zeta Global
ZETA
$7.32B
– –
-191,863
Closed -$3.9M
ZJYL
3755
Jin Medical International
ZJYL
$23.3M
– –
-2,000
Closed -$8.8K
ZTEK
3756
Zentek
ZTEK
$83.6M
– –
-46,000
Closed -$29.4K
ZYME icon
3757
Zymeworks
ZYME
$1.73B
– –
-220,877
Closed -$5.82M
AHR icon
3758
American Healthcare REIT
AHR
$10.2B
– –
-259,131
Closed -$12.2M
TBRG
3759
DELISTED
TruBridge
TBRG
– –
-29,176
Closed -$644K
QDTE icon
3760
Roundhill N-100 0DTE Covered Call Strategy ETF
QDTE
$954M
– –
-39,700
Closed -$1.22M
INTJ
3761
Intelligent Group
INTJ
$5.18M
– –
-2,300
Closed -$27.6K
SOLV icon
3762
Solventum
SOLV
$14.3B
– –
-312,800
Closed -$24.8M
BITU icon
3763
ProShares Ultra Bitcoin ETF
BITU
$342M
– –
-143,400
Closed -$3.17M
GEV icon
3764
GE Vernova
GEV
$269B
– –
-345,390
Closed -$226M
PACS icon
3765
PACS Group
PACS
$7.12B
– –
-9,200
Closed -$353K
BYAH
3766
Park Ha Biological Technology Co
BYAH
$2.82M
– –
-852
Closed -$54.2K
TEM
3767
Tempus AI
TEM
$10B
– –
-88,800
Closed -$5.24M
BTCZ
3768
T-Rex 2X Inverse Bitcoin Daily Target ETF
BTCZ
$21.7M
– –
-15,300
Closed -$64.4K
FETH
3769
Fidelity Ethereum Fund
FETH
$1.01B
– –
-146,200
Closed -$4.33M
SPAI
3770
Safe Pro Group Inc
SPAI
$97.1M
– –
-77,500
Closed -$322K
INVX
3771
Innovex International
INVX
$2.11B
– –
-42,859
Closed -$937K
MBX
3772
MBX Biosciences
MBX
$3.18B
– –
-32,644
Closed -$1.03M
GRML
3773
Greenland Mines Ltd
GRML
$31.5M
– –
-434,575
Closed -$126K
OMCC
3774
DELISTED
Old Market Capital Corp
OMCC
– –
-287,851
Closed -$1.49M
BAI
3775
iShares A.I. Innovation and Tech Active ETF
BAI
$13.7B
– –
-56,600
Closed -$1.88M
149 150
151
152 153

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Jim Simons's Q1 2026 Portfolio in Review

As of Q1 2026, Jim Simons held 3,809 positions worth $63.9B, down 0.82% from $64.5B the previous quarter. Its ten largest holdings account for 11% of the portfolio.

Jim Simons's Q1 2026 filing shows 624 new, 1,320 increased, 1,262 reduced and 596 closed positions. Its largest new stake was Apple: 3,075,638 shares worth $781M. The largest sale was Costco, an estimated $656M.

By sector, the portfolio is most concentrated in Technology at 22% of assets, up from 21% a quarter earlier, followed by Healthcare and Industrials.

  • Jim Simons's largest Q1 2026 buy was Apple: 3,075,638 shares worth $781M.
  • Jim Simons added most to NVIDIA in Q1 2026, an estimated $304M increase.
  • Jim Simons's biggest Q1 2026 reduction was Costco, cutting an estimated $656M.
  • Jim Simons fully exited Procter & Gamble in Q1 2026, selling an estimated $428M.
  • Jim Simons's ten largest holdings make up 11% of its $63.9B portfolio in Q1 2026.
  • Jim Simons opened 624 new positions and closed 596 in Q1 2026.
  • Jim Simons's portfolio value fell 0.82% quarter-over-quarter to $63.9B.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.