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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
+17.5%
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
$75.8B
AUM Growth
+$582M
Cap. Flow
-$5.41B
Cap. Flow %
-7.14%
Top 10 Hldgs %
11.47%
Holding
4,038
New
516
Increased
1,457
Reduced
1,457
Closed
581

Top Buys

Rank Stock Value
1
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$546M
2
MSFT icon
Microsoft
MSFT
+$480M
3
GOOG icon
Alphabet (Google) Class C
GOOG
+$362M
4
META icon
Meta Platforms (Facebook)
META
+$350M
5
KO icon
Coca-Cola
KO
+$266M

Top Sells

Rank Stock Value
1
HOOD icon
Robinhood
HOOD
+$1.04B
2
PLTR icon
Palantir
PLTR
+$800M
3
AAPL icon
Apple
AAPL
+$516M
4
NFLX icon
Netflix
NFLX
+$326M
5
NVDA icon
NVIDIA
NVDA
+$313M

Sector Composition

Rank Sector Weight
1 Technology 21.71%
2 Healthcare 15.16%
3 Consumer Discretionary 11.81%
4 Communication Services 10.53%
5 Financials 9.27%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
NUVB icon
3776
Nuvation Bio
NUVB
$2.24B
– –
-22,100
Closed -$43.1K
NUVL
3777
DELISTED
Nuvalent
NUVL
– –
-29,200
Closed -$2.23M
NVDD icon
3778
Direxion Daily NVDA Bear 1X ETF
NVDD
$20.1M
– –
-14,130
Closed -$658K
NVDQ icon
3779
T-Rex 2X Inverse NVIDIA Daily Target ETF
NVDQ
$14.6M
– –
-9,370
Closed -$255K
NXE icon
3780
NexGen Energy
NXE
$7.08B
– –
-2,958,800
Closed -$20.5M
NXST icon
3781
Nexstar Media Group
NXST
$5.69B
– –
-44,305
Closed -$7.66M
OCUL icon
3782
Ocular Therapeutix
OCUL
$2.14B
– –
-410,048
Closed -$3.81M
OLB icon
3783
OLB
OLB
$4.51M
– –
-25,260
Closed -$47.2K
OLLI icon
3784
Ollie's Bargain Outlet
OLLI
$4.76B
– –
-19,600
Closed -$2.58M
OLO
3785
DELISTED
Olo Inc
OLO
– –
-1,470,660
Closed -$13.1M
ONTO icon
3786
Onto Innovation
ONTO
$19.5B
– –
-76,774
Closed -$7.75M
OPI
3787
DELISTED
Office Properties Income Trust
OPI
– –
-224,501
Closed -$55.5K
OPOF
3788
DELISTED
Old Point Financial
OPOF
– –
-36,929
Closed -$1.45M
OSCR icon
3789
Oscar Health
OSCR
$8.63B
– –
-1,464,700
Closed -$31.4M
OSPN icon
3790
OneSpan
OSPN
$601M
– –
-131,317
Closed -$2.19M
OST icon
3791
Ostin Technology Group
OST
– –
-84,192
Closed -$333K
OTLY
3792
Oatly Group
OTLY
$416M
– –
-27,549
Closed -$327K
OTLK icon
3793
Outlook Therapeutics
OTLK
$211M
– –
-106,068
Closed -$170K
PAAS icon
3794
Pan American Silver
PAAS
$21.8B
– –
-1,698,622
Closed -$48.2M
PACK icon
3795
Ranpak Holdings
PACK
$461M
– –
-146,100
Closed -$522K
PAR icon
3796
PAR Technology
PAR
$721M
– –
-42,200
Closed -$2.93M
PAY icon
3797
Paymentus
PAY
$5.11B
– –
-42,100
Closed -$1.38M
PCAR icon
3798
PACCAR
PCAR
$69.8B
– –
-45,316
Closed -$4.31M
PDEX icon
3799
Pro-Dex
PDEX
$213M
– –
-11,240
Closed -$491K
PEGA icon
3800
Pegasystems
PEGA
$5.44B
– –
-33,648
Closed -$1.82M
150 151
152
153 154

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Jim Simons's Q3 2025 Portfolio in Review

As of Q3 2025, Jim Simons held 4,038 positions worth $75.8B, up 0.77% from $75.2B the previous quarter. Its ten largest holdings account for 11% of the portfolio.

Jim Simons withdrew a net $5.41B in Q3 2025, closing 581 positions and reducing 1,457 holdings. Its most notable exit was GE Aerospace, an estimated $235M position sold in full.

By sector, the portfolio is most concentrated in Technology at 22% of assets, up from 20% a quarter earlier, followed by Healthcare and Consumer Discretionary.

Against the trend, Jim Simons opened a new position in Alphabet (Google) Class C worth $419M.

  • Jim Simons's largest Q3 2025 buy was Alphabet (Google) Class C: 1,720,002 shares worth $419M.
  • Jim Simons added most to Alphabet (Google) Class A in Q3 2025, an estimated $546M increase.
  • Jim Simons's biggest Q3 2025 reduction was Robinhood, cutting an estimated $1.04B.
  • Jim Simons fully exited GE Aerospace in Q3 2025, selling an estimated $235M.
  • Jim Simons's ten largest holdings make up 11% of its $75.8B portfolio in Q3 2025.
  • Jim Simons opened 516 new positions and closed 581 in Q3 2025.
  • Jim Simons's portfolio value rose 0.77% quarter-over-quarter to $75.8B.

Based on Renaissance Technologies's 13F filing for Q3 2025, filed 13 Nov 2025.