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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
AXSM icon
526
Axsome Therapeutics
AXSM
$11.2B
$27.8M 0.04%
164,300
-5,700
-3% -$985K
KIM icon
527
Kimco Realty
KIM
$16.2B
$27.8M 0.04%
1,235,436
+1,161,400
+1,569% +$25.6M
ARMK icon
528
Aramark
ARMK
$15.9B
$27.7M 0.04%
683,100
+358,600
+111% +$14.2M
CR icon
529
Crane Co
CR
$12.9B
$27.6M 0.04%
161,300
+13,700
+9% +$2.63M
MKTX icon
530
MarketAxess Holdings
MKTX
$5.72B
$27.6M 0.04%
167,100
-8,900
-5% -$1.56M
ODC icon
531
Oil-Dri
ODC
$1.28B
$27.5M 0.04%
422,392
-30,300
-7% -$1.84M
OHI icon
532
Omega Healthcare
OHI
$13.9B
$27.4M 0.04%
625,378
+294,327
+89% +$13.4M
SNX icon
533
TD Synnex
SNX
$20.4B
$27.3M 0.04%
162,028
+20,000
+14% +$3.15M
CTRI icon
534
Centuri Holdings
CTRI
$2.4B
$27.3M 0.04%
934,300
+96,600
+12% +$2.81M
IDXX icon
535
Idexx Laboratories
IDXX
$45B
$27.3M 0.04%
+48,504
New +$31.1M
MIDD icon
536
Middleby
MIDD
$5.38B
$27.2M 0.04%
205,270
+193,000
+1,573% +$29.3M
COGT icon
537
Cogent Biosciences
COGT
$6.76B
$27.2M 0.04%
706,268
+17,200
+2% +$635K
BBIO icon
538
BridgeBio Pharma
BBIO
$16.4B
$27.2M 0.04%
+365,772
New +$26.5M
FWONA icon
539
Liberty Media Series A
FWONA
$23.7B
$27.1M 0.04%
347,122
+66,600
+24% +$5.33M
FOLD
540
DELISTED
Amicus Therapeutics
FOLD
$27.1M 0.04%
1,872,893
+661,200
+55% +$9.48M
CACC icon
541
Credit Acceptance
CACC
$5.99B
$26.9M 0.04%
63,468
+58,080
+1,078% +$27.4M
UBS icon
542
UBS Group
UBS
$177B
$26.8M 0.04%
686,991
+480,400
+233% +$20.6M
ASND icon
543
Ascendis Pharma A/S
ASND
$16.8B
$26.8M 0.04%
+117,332
New +$26.3M
MYE icon
544
Myers Industries
MYE
$1.23B
$26.8M 0.04%
1,265,597
-42,993
-3% -$905K
KLAR
545
Klarna Group
KLAR
$7.23B
$26.7M 0.04%
2,043,100
+1,297,200
+174% +$25.7M
TSLL icon
546
Direxion Daily TSLA Bull 2X ETF
TSLL
$3.26B
$26.7M 0.04%
2,198,300
+2,111,700
+2,438% +$32.9M
LXU icon
547
LSB Industries
LXU
$711M
$26.7M 0.04%
1,792,506
+46,613
+3% +$531K
CALX icon
548
Calix
CALX
$2.51B
$26.6M 0.04%
543,418
+79,800
+17% +$4.19M
IWF icon
549
iShares Russell 1000 Growth ETF
IWF
$128B
$26.6M 0.04%
249,120
+201,920
+428% +$22.9M
ASC icon
550
Ardmore Shipping
ASC
$681M
$26.5M 0.04%
1,736,632
+266,275
+18% +$3.66M
20 21
22
23 24

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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.