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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
AMLX icon
3226
Amylyx Pharmaceuticals
AMLX
$2.63B
– –
-192,500
Closed -$2.33M
AMRC icon
3227
Ameresco
AMRC
$1.37B
– –
-26,250
Closed -$769K
AMSC icon
3228
American Superconductor
AMSC
$1.56B
– –
-139,989
Closed -$4.03M
AMST icon
3229
Amesite
AMST
$6.81M
– –
-11,403
Closed -$21.6K
AMT icon
3230
American Tower
AMT
$79B
– –
-162,039
Closed -$28.4M
AMTB icon
3231
Amerant Bancorp
AMTB
$1.14B
– –
-67,635
Closed -$1.32M
AMWD
3232
DELISTED
American Woodmark
AMWD
– –
-16,800
Closed -$906K
AMZN icon
3233
Amazon
AMZN
$2.94T
– –
-890,926
Closed -$206M
ANEB
3234
DELISTED
Anebulo Pharmaceuticals
ANEB
– –
-25,098
Closed -$25.3K
AOSL icon
3235
Alpha and Omega Semiconductor
AOSL
$1.04B
– –
-10,500
Closed -$208K
APA icon
3236
APA Corp
APA
$14.2B
– –
-1,126,157
Closed -$27.5M
APLT
3237
DELISTED
Applied Therapeutics
APLT
– –
-2,706,156
Closed -$271K
APPN icon
3238
Appian
APPN
$2.54B
– –
-57,800
Closed -$2.05M
AQST icon
3239
Aquestive Therapeutics
AQST
$553M
– –
-414,400
Closed -$2.68M
ARGT icon
3240
Global X MSCI Argentina ETF
ARGT
$823M
– –
-6,900
Closed -$631K
ARKB icon
3241
ARK 21Shares Bitcoin ETF
ARKB
$2.42B
– –
-127,600
Closed -$3.71M
ARKG icon
3242
ARK Genomic Revolution ETF
ARKG
$1.79B
– –
-67,700
Closed -$1.96M
ARKQ icon
3243
ARK Autonomous Technology & Robotics ETF
ARKQ
$2.07B
– –
-7,100
Closed -$814K
ARRY icon
3244
Array Technologies
ARRY
$824M
– –
-2,026,900
Closed -$18.7M
ASHR icon
3245
Xtrackers Harvest CSI 300 China A-Shares ETF
ASHR
$1.58B
– –
-329,800
Closed -$10.8M
ASIX icon
3246
AdvanSix
ASIX
$452M
– –
-203,800
Closed -$3.53M
ATRA icon
3247
Atara Biotherapeutics
ATRA
$80.6M
– –
-30,040
Closed -$543K
ATXG icon
3248
Addentax Group
ATXG
$5.02M
– –
-1,140
Closed -$6.71K
ATXS
3249
DELISTED
Astria Therapeutics
ATXS
– –
-205,961
Closed -$2.7M
AUB icon
3250
Atlantic Union Bankshares
AUB
$6.02B
– –
-18,302
Closed -$646K
128 129
130
131 132

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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.