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Jim Simons

Jim Simons Renaissance Technologies

AUM $72.6B
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
+1.01%
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
$66.1B
AUM Growth
-$1.48B
Cap. Flow
+$425M
Cap. Flow %
0.64%
Top 10 Hldgs %
10.65%
Holding
3,989
New
456
Increased
1,472
Reduced
1,441
Closed
583

Top Buys

Rank Stock Value
1
AVGO icon
Broadcom
AVGO
+$513M
2
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$412M
3
META icon
Meta Platforms (Facebook)
META
+$354M
4
NOW icon
ServiceNow
NOW
+$262M
5
AAL icon
American Airlines Group
AAL
+$259M

Top Sells

Rank Stock Value
1
PLTR icon
Palantir
PLTR
+$571M
2
AAPL icon
Apple
AAPL
+$571M
3
NFLX icon
Netflix
NFLX
+$388M
4
NVDA icon
NVIDIA
NVDA
+$313M
5
TSM icon
TSMC
TSM
+$211M

Sector Composition

Rank Sector Weight
1 Technology 17.32%
2 Healthcare 15.28%
3 Consumer Discretionary 11.85%
4 Financials 11.11%
5 Industrials 8.48%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AVTR icon
3451
Avantor
AVTR
$9.37B
– –
-325,500
Closed -$6.86M
AWK icon
3452
American Water Works
AWK
$27.1B
– –
-156,600
Closed -$19.5M
AX icon
3453
Axos Financial
AX
$5.72B
– –
-10,684
Closed -$746K
AXON
3454
Axon Enterprise
AXON
$50B
– –
-109,252
Closed -$64.9M
AXTI icon
3455
AXT Inc
AXTI
$5.07B
– –
-321,996
Closed -$699K
AZ icon
3456
A2Z Smart Technologies
AZ
$361M
– –
-43,300
Closed -$287K
AZTR icon
3457
Azitra
AZTR
$2.27M
– –
-5,491
Closed -$15.6K
AZO icon
3458
AutoZone
AZO
$49.6B
– –
-49,200
Closed -$158M
BAB icon
3459
Invesco Taxable Municipal Bond ETF
BAB
$1.01B
– –
-10,000
Closed -$262K
BAFN icon
3460
BayFirst Financial Corp
BAFN
$34.7M
– –
-10,000
Closed -$133K
BBAX icon
3461
JPMorgan BetaBuilders Developed Asia Pacific-ex Japan ETF
BBAX
$6.78B
– –
-5,800
Closed -$283K
BBHY icon
3462
JPMorgan BetaBuilders USD High Yield Corporate Bond ETF
BBHY
$619M
– –
-21,100
Closed -$972K
BDX icon
3463
Becton Dickinson
BDX
$49.6B
– –
-245,991
Closed -$55.8M
BFAM icon
3464
Bright Horizons
BFAM
$3.85B
– –
-91,300
Closed -$10.1M
BFH icon
3465
Bread Financial
BFH
$4.51B
– –
-14,200
Closed -$867K
BHE icon
3466
Benchmark Electronics
BHE
$2.89B
– –
-45,750
Closed -$2.08M
BIDU icon
3467
Baidu
BIDU
$35.5B
– –
-358,399
Closed -$30.2M
BILI icon
3468
Bilibili
BILI
$7.14B
– –
-322,200
Closed -$5.84M
BITB icon
3469
Bitwise Bitcoin ETF
BITB
$2.43B
– –
-29,000
Closed -$1.47M
BITO icon
3470
ProShares Bitcoin Strategy ETF
BITO
$1.43B
– –
-20,700
Closed -$472K
BKKT icon
3471
Bakkt Inc
BKKT
$331M
– –
-47,155
Closed -$1.17M
BKSY icon
3472
BlackSky Technology
BKSY
$1.27B
– –
-15,800
Closed -$170K
BLDR icon
3473
Builders FirstSource
BLDR
$7.91B
– –
-69,641
Closed -$9.95M
BLND icon
3474
Blend Labs
BLND
$367M
– –
-413,000
Closed -$1.74M
BLOK icon
3475
Amplify Blockchain Technology ETF
BLOK
$1.07B
– –
-5,500
Closed -$238K
137 138
139
140 141

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Jim Simons's Q1 2025 Portfolio in Review

As of Q1 2025, Jim Simons held 3,989 positions worth $66.1B, down 2.2% from $67.6B the previous quarter. Its ten largest holdings account for 11% of the portfolio.

Jim Simons's Q1 2025 filing shows 456 new, 1,472 increased, 1,441 reduced and 583 closed positions. Its largest new stake was ServiceNow: 1,361,505 shares worth $217M. The largest sale was Palantir, an estimated $571M.

By sector, the portfolio is most concentrated in Technology at 17% of assets, down from 21% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • Jim Simons's largest Q1 2025 buy was ServiceNow: 1,361,505 shares worth $217M.
  • Jim Simons added most to Broadcom in Q1 2025, an estimated $513M increase.
  • Jim Simons's biggest Q1 2025 reduction was Palantir, cutting an estimated $571M.
  • Jim Simons fully exited Nike in Q1 2025, selling an estimated $197M.
  • Jim Simons's ten largest holdings make up 11% of its $66.1B portfolio in Q1 2025.
  • Jim Simons opened 456 new positions and closed 583 in Q1 2025.
  • Jim Simons's portfolio value fell 2.2% quarter-over-quarter to $66.1B.

Based on Renaissance Technologies's 13F filing for Q1 2025, filed 14 May 2025.