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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
+2.8%
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
$64.5B
AUM Growth
-$11.3B
Cap. Flow
-$10.1B
Cap. Flow %
-15.68%
Top 10 Hldgs %
12.13%
Holding
3,923
New
466
Increased
1,028
Reduced
1,682
Closed
737

Top Buys

Rank Stock Value
1
COST icon
Costco
COST
+$616M
2
NFLX icon
Netflix
NFLX
+$481M
3
MU icon
Micron Technology
MU
+$416M
4
TSLA icon
Tesla
TSLA
+$416M
5
PG icon
Procter & Gamble
PG
+$322M

Sector Composition

Rank Sector Weight
1 Technology 20.84%
2 Healthcare 15.77%
3 Consumer Discretionary 13.88%
4 Industrials 9.94%
5 Financials 8.79%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
SOPH icon
2676
SOPHiA GENETICS
SOPH
$640M
$388K ﹤0.01%
83,000
+52,200
+169% +$236K
XBIO icon
2677
Xenetic Biosciences
XBIO
$7.24M
$387K ﹤0.01%
178,509
+149,559
+517% +$477K
ANTX icon
2678
AN2 Therapeutics
ANTX
$228M
$386K ﹤0.01%
338,600
-46,997
-12% -$54.9K
HOFT icon
2679
Hooker Furnishings Corp
HOFT
$161M
$384K ﹤0.01%
34,000
-1,300
-4% -$13.1K
CNTY icon
2680
Century Casinos
CNTY
$34.9M
$383K ﹤0.01%
287,849
+106,200
+58% +$190K
BRLT icon
2681
Brilliant Earth
BRLT
$22.1M
$382K ﹤0.01%
218,100
+22,000
+11% +$46.8K
GRSD
2682
Grandstand Limited Ordinary Shares
GRSD
$65.9M
$382K ﹤0.01%
69,892
-300,908
-81% -$1.91M
ECPG icon
2683
Encore Capital Group
ECPG
$2.14B
$380K ﹤0.01%
7,000
-1,600
-19% -$77.1K
WKC icon
2684
World Kinect Corp
WKC
$1.91B
$379K ﹤0.01%
+16,186
New +$399K
AEI icon
2685
Alset
AEI
$43.6M
$379K ﹤0.01%
110,166
-2,100
-2% -$5.66K
FVR
2686
FrontView REIT
FVR
$489M
$375K ﹤0.01%
25,400
-71,800
-74% -$1.03M
WRAP icon
2687
Wrap Technologies
WRAP
$98M
$373K ﹤0.01%
156,900
+110,200
+236% +$266K
WTI icon
2688
W&T Offshore
WTI
$543M
$372K ﹤0.01%
228,400
+71,500
+46% +$137K
LSPD icon
2689
Lightspeed Commerce
LSPD
$1.37B
$372K ﹤0.01%
+30,783
New +$365K
HBB icon
2690
Hamilton Beach Brands
HBB
$450M
$372K ﹤0.01%
22,600
-2,100
-9% -$31.8K
BCI icon
2691
abrdn Bloomberg All Commodity Strategy K-1 Free ETF
BCI
$3.08B
$371K ﹤0.01%
19,000
+8,700
+84% +$193K
AISP
2692
Airship AI Holdings
AISP
$66.8M
$371K ﹤0.01%
+128,375
New +$529K
DIVO icon
2693
Amplify CWP Enhanced Dividend Income ETF
DIVO
$7.82B
$371K ﹤0.01%
8,332
-48,868
-85% -$2.2M
RGS icon
2694
Regis Corp
RGS
$70.9M
$370K ﹤0.01%
13,344
+1,500
+13% +$43K
HZO icon
2695
MarineMax
HZO
$1.15B
$368K ﹤0.01%
+15,200
New +$375K
MCW
2696
DELISTED
Mister Car Wash
MCW
$367K ﹤0.01%
66,078
-434,522
-87% -$2.29M
MSTY icon
2697
YieldMax MSTR Option Income Strategy ETF
MSTY
$734M
$367K ﹤0.01%
12,400
-21,420
-63% -$1M
CLST icon
2698
Catalyst Bancorp
CLST
$69.6M
$367K ﹤0.01%
23,300
+500
+2% +$7.22K
FTCI icon
2699
FTC Solar
FTCI
$39.7M
$367K ﹤0.01%
+33,600
New +$307K
EMB icon
2700
iShares JPMorgan USD Emerging Markets Bond ETF
EMB
$15B
$366K ﹤0.01%
+3,800
New +$365K

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Jim Simons's Q4 2025 Portfolio in Review

As of Q4 2025, Jim Simons held 3,923 positions worth $64.5B, down 15% from $75.8B the previous quarter. Its ten largest holdings account for 12% of the portfolio.

Jim Simons withdrew a net $10.1B in Q4 2025, closing 737 positions and reducing 1,682 holdings. Its most notable exit was Meta Platforms (Facebook), an estimated $354M position sold in full.

By sector, the portfolio is most concentrated in Technology at 21% of assets, down from 22% a quarter earlier, followed by Healthcare and Consumer Discretionary.

Against the trend, Jim Simons opened a new position in ServiceNow worth $204M.

  • Jim Simons's largest Q4 2025 buy was ServiceNow: 1,331,977 shares worth $204M.
  • Jim Simons added most to Costco in Q4 2025, an estimated $616M increase.
  • Jim Simons's biggest Q4 2025 reduction was NVIDIA, cutting an estimated $885M.
  • Jim Simons fully exited Meta Platforms (Facebook) in Q4 2025, selling an estimated $354M.
  • Jim Simons's ten largest holdings make up 12% of its $64.5B portfolio in Q4 2025.
  • Jim Simons opened 466 new positions and closed 737 in Q4 2025.
  • Jim Simons's portfolio value fell 15% quarter-over-quarter to $64.5B.

Based on Renaissance Technologies's 13F filing for Q4 2025, filed 12 Feb 2026.