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Jim Simons

Jim Simons Renaissance Technologies

AUM $72.6B Turnover 31.08%
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
+24.48%
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
$72.6B
AUM Growth
+$8.69B
Cap. Flow
+$958M
Cap. Flow %
1.32%
Top 10 Hldgs %
12.01%
Holding
3,761
New
548
Increased
1,084
Reduced
1,502
Closed
621
Avg Time Held
3.5 years
Top 10 Avg Time Held
1.5 years
Top 20 Avg Time Held
1.3 years

Top Buys

Rank Stock Value
1
META icon
Meta Platforms (Facebook)
META
+$1.08B
2
NVDA icon
NVIDIA
NVDA
+$938M
3
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$639M
4
NFLX icon
Netflix
NFLX
+$598M
5
AMZN icon
Amazon
AMZN
+$575M

Top Sells

Rank Stock Value
1
MU icon
Micron Technology
MU
+$1.46B
2
SNDK icon
Sandisk
SNDK
+$1.13B
3
AAPL icon
Apple
AAPL
+$426M
4
LIN icon
Linde
LIN
+$316M
5
VRT icon
Vertiv
VRT
+$297M

Sector Composition

Rank Sector Weight
1 Technology 23.58%
2 Healthcare 14.83%
3 Consumer Discretionary 11.24%
4 Industrials 10.49%
5 Communication Services 8.91%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow Held Since
BAR icon
3201
GraniteShares Gold Shares
BAR
$1.35B
– –
-26,400
Closed -$1.22M –
BARK icon
3202
BARK
BARK
$67.4M
– –
-9,585
Closed -$97.1K –
BBCA icon
3203
JPMorgan BetaBuilders Canada ETF
BBCA
$11.5B
– –
-6,400
Closed -$602K –
BCAB icon
3204
DELISTED
BIOATLA INC
BCAB
– –
-10,210
Closed -$82.2K –
BCDA icon
3205
BioCardia
BCDA
$13.6M
– –
-13,900
Closed -$16.8K –
BCE icon
3206
BCE
BCE
$18.5B
– –
-75,198
Closed -$1.9M –
BCI icon
3207
abrdn Bloomberg All Commodity Strategy K-1 Free ETF
BCI
$3.54B
– –
-38,900
Closed -$945K –
BFRG icon
3208
Bullfrog AI
BFRG
$9.8M
– –
-12,000
Closed -$20.2K –
KEEL icon
3209
Keel Infrastructure Corp
KEEL
$1.46B
– –
-7,767,131
Closed -$15.1M –
BITI icon
3210
ProShares Short Bitcoin Strategy ETF
BITI
$76.8M
– –
-24,000
Closed -$640K –
BIZD icon
3211
VanEck BDC Income ETF
BIZD
$1.4B
– –
-54,400
Closed -$696K –
ALOY icon
3212
REalloys Inc
ALOY
$487M
– –
-29,300
Closed -$286K –
BLD icon
3213
DELISTED
TopBuild
BLD
– –
-27,700
Closed -$9.7M –
BLDR icon
3214
Builders FirstSource
BLDR
$5.7B
– –
-220,241
Closed -$18.1M –
BLFS icon
3215
DELISTED
BioLife Solutions
BLFS
– –
-207,128
Closed -$3.95M –
BLFY icon
3216
DELISTED
Blue Foundry Bancorp
BLFY
– –
-338,400
Closed -$4.48M –
BMI icon
3217
Badger Meter
BMI
$3.66B
– –
-199,200
Closed -$30.3M –
BMY icon
3218
Bristol-Myers Squibb
BMY
$120B
– –
-977,051
Closed -$59.3M –
BNED icon
3219
Barnes & Noble Education
BNED
$447M
– –
-15,400
Closed -$136K –
BOND icon
3220
PIMCO Active Bond Exchange-Traded Fund
BOND
$8.58B
– –
-8,500
Closed -$784K –
BOOT icon
3221
Boot Barn
BOOT
$3.61B
– –
-51,900
Closed -$7.6M –
BOTZ icon
3222
Global X Robotics & Artificial Intelligence ETF
BOTZ
$3.14B
– –
-6,900
Closed -$229K –
BOX icon
3223
Box
BOX
$5.55B
– –
-61,308
Closed -$1.45M –
BTM icon
3224
DELISTED
Bitcoin Depot
BTM
– –
-171,051
Closed -$373K –
BWXT icon
3225
BWX Technologies
BWXT
$12.4B
– –
-11,600
Closed -$2.37M –
127 128
129
130 131

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Jim Simons's Q2 2026 Portfolio in Review

As of Q2 2026, Jim Simons held 3,761 positions worth $72.6B, up 14% from $63.9B the previous quarter. Its ten largest holdings account for 12% of the portfolio.

Jim Simons's Q2 2026 filing shows 548 new, 1,084 increased, 1,502 reduced and 621 closed positions. Its largest new stake was Amazon: 2,290,710 shares worth $546M. The largest sale was Micron Technology, an estimated $1.46B.

By sector, the portfolio is most concentrated in Technology at 24% of assets, up from 22% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • Jim Simons's largest Q2 2026 buy was Amazon: 2,290,710 shares worth $546M.
  • Jim Simons added most to Meta Platforms (Facebook) in Q2 2026, an estimated $1.08B increase.
  • Jim Simons's biggest Q2 2026 reduction was Micron Technology, cutting an estimated $1.46B.
  • Jim Simons fully exited Applovin in Q2 2026, selling an estimated $174M.
  • Jim Simons's ten largest holdings make up 12% of its $72.6B portfolio in Q2 2026.
  • Jim Simons opened 548 new positions and closed 621 in Q2 2026.
  • Jim Simons's portfolio value rose 14% quarter-over-quarter to $72.6B.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.