Jim Simons Renaissance Technologies
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.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Costco
COST
|
+$616M |
| 2 |
Netflix
NFLX
|
+$481M |
| 3 |
Micron Technology
MU
|
+$416M |
| 4 |
Tesla
TSLA
|
+$416M |
| 5 |
Procter & Gamble
PG
|
+$322M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
NVIDIA
NVDA
|
+$885M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$660M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$463M |
| 4 |
Applovin
APP
|
+$430M |
| 5 |
Meta Platforms (Facebook)
META
|
+$354M |
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 | |
|---|---|---|---|---|---|---|
551
Clorox
CLX
$12.9B
| $22.6M | 0.04% |
224,300
-446,000
| -67% | -$48.4M |
|
552
Bloom Energy
BE
$69.6B
| $22.6M | 0.04% |
+260,200
| New | +$27.3M |
|
553
Usana Health Sciences
USNA
$252M
| $22.5M | 0.03% |
1,147,323
+21,793
| +2% | +$452K |
|
554
iShares MSCI Brazil ETF
EWZ
$8.55B
| $22.4M | 0.03% |
705,600
+595,100
| +539% | +$18.8M |
|
555
Armstrong World Industries
AWI
$7.68B
| $22.4M | 0.03% |
117,300
+43,800
| +60% | +$8.36M |
|
556
Federated Hermes
FHI
$4.74B
| $22.2M | 0.03% |
426,300
-112,051
| -21% | -$5.69M |
|
557
American Airlines Group
AAL
$9.97B
| $22.2M | 0.03% |
1,447,132
-1,264,200
| -47% | -$17.1M |
|
558
Oil-Dri
ODC
$1.27B
| $22.2M | 0.03% |
452,692
-16,100
| -3% | -$892K |
|
559
WEC Energy
WEC
$35.9B
| $22.1M | 0.03% |
+209,975
| New | +$23.2M |
|
|
HNGE
560
Hinge Health
HNGE
$7.05B
| $22M | 0.03% |
474,400
+344,700
| +266% | +$16.6M |
|
561
Kraft Heinz
KHC
$30.1B
| $22M | 0.03% |
907,200
+563,300
| +164% | +$14M |
|
562
AutoNation
AN
$6.89B
| $21.9M | 0.03% |
106,000
-44,859
| -30% | -$9.33M |
|
563
SandRidge Energy
SD
$516M
| $21.8M | 0.03% |
1,513,812
-79,923
| -5% | -$1.06M |
|
564
Avis
CAR
$4.84B
| $21.8M | 0.03% |
169,980
+20,200
| +13% | +$2.82M |
|
|
HTB
565
HomeTrust Bancshares
HTB
$837M
| $21.7M | 0.03% |
505,237
-38,478
| -7% | -$1.59M |
|
566
Smith & Wesson
SWBI
$643M
| $21.7M | 0.03% |
2,196,874
-113,200
| -5% | -$1.09M |
|
567
UWM Holdings
UWMC
$2.61B
| $21.6M | 0.03% |
+4,926,884
| New | +$26.5M |
|
|
KLAR
568
Klarna Group
KLAR
$7.82B
| $21.6M | 0.03% |
+745,900
| New | +$25.6M |
|
569
Kodiak Gas Services
KGS
$6.3B
| $21.5M | 0.03% |
574,922
+353,800
| +160% | +$12.5M |
|
|
MRP
570
Millrose Properties Inc
MRP
$5.02B
| $21.5M | 0.03% |
718,867
-23,133
| -3% | -$726K |
|
571
Bank of Montreal
BMO
$129B
| $21.4M | 0.03% |
164,995
-82,800
| -33% | -$10.5M |
|
572
Hamilton Lane
HLNE
$5.91B
| $21.4M | 0.03% |
159,231
-16,300
| -9% | -$2.05M |
|
|
TTAN
573
ServiceTitan Inc
TTAN
$8.94B
| $21.4M | 0.03% |
200,600
-316,900
| -61% | -$31M |
|
574
TD Synnex
SNX
$20.4B
| $21.3M | 0.03% |
142,028
+64,000
| +82% | +$9.82M |
|
575
Sphere Entertainment
SPHR
$6.33B
| $21.3M | 0.03% |
224,035
+117,300
| +110% | +$8.94M |
|
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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.