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 | |
|---|---|---|---|---|---|---|
876
Xtrackers Harvest CSI 300 China A-Shares ETF
ASHR
$1.58B
| $10.8M | 0.02% |
+329,800
| New | +$10.8M |
|
877
NerdWallet
NRDS
$617M
| $10.8M | 0.02% |
799,437
+70,337
| +10% | +$920K |
|
878
Rayonier Advanced Materials
RYAM
$561M
| $10.8M | 0.02% |
1,838,652
-183,592
| -9% | -$1.19M |
|
879
AngioDynamics
ANGO
$651M
| $10.8M | 0.02% |
843,083
-90,300
| -10% | -$1.11M |
|
880
PubMatic
PUBM
$783M
| $10.8M | 0.02% |
1,219,333
-136,267
| -10% | -$1.19M |
|
881
Consolidated Water Co
CWCO
$505M
| $10.8M | 0.02% |
305,435
-47,932
| -14% | -$1.67M |
|
882
IMAX
IMAX
$2.81B
| $10.7M | 0.02% |
290,400
+153,000
| +111% | +$5.33M |
|
883
Universal Insurance Holdings
UVE
$1.18B
| $10.7M | 0.02% |
317,026
+38,926
| +14% | +$1.24M |
|
884
Texas Capital Bancshares
TCBI
$4.38B
| $10.7M | 0.02% |
118,014
-23,086
| -16% | -$2.03M |
|
885
Star Group
SGU
$417M
| $10.7M | 0.02% |
899,827
-28,618
| -3% | -$339K |
|
886
NVE Corp
NVEC
$591M
| $10.6M | 0.02% |
179,132
+24,732
| +16% | +$1.65M |
|
887
Vanguard Tax-Exempt Bond Index Fund
VTEB
$46.1B
| $10.6M | 0.02% |
211,254
-462,646
| -69% | -$23.3M |
|
888
Gildan
GIL
$10.6B
| $10.6M | 0.02% |
+170,052
| New | +$10.1M |
|
889
Navigator Holdings
NVGS
$1.26B
| $10.6M | 0.02% |
610,088
-15,832
| -3% | -$265K |
|
890
W.P. Carey
WPC
$16.1B
| $10.6M | 0.02% |
164,000
-21,800
| -12% | -$1.45M |
|
891
Clover Health Investments
CLOV
$2.41B
| $10.6M | 0.02% |
4,491,141
-3,221,559
| -42% | -$8.81M |
|
892
Valaris
VAL
$5.92B
| $10.5M | 0.02% |
209,000
+92,800
| +80% | +$4.98M |
|
893
TORM
TRMD
$2.97B
| $10.5M | 0.02% |
536,425
+110,000
| +26% | +$2.32M |
|
894
Ardelyx
ARDX
$1.03B
| $10.5M | 0.02% |
1,794,793
+104,700
| +6% | +$583K |
|
895
IHS Holding
IHS
$2.82B
| $10.5M | 0.02% |
1,401,300
+240,100
| +21% | +$1.65M |
|
896
Valmont Industries
VMI
$9.52B
| $10.4M | 0.02% |
25,960
+4,160
| +19% | +$1.69M |
|
897
Global Industrial
GIC
$1.49B
| $10.4M | 0.02% |
357,179
-9,200
| -3% | -$280K |
|
898
Atlanta Braves Holdings Series A
BATRA
$3.63B
| $10.4M | 0.02% |
245,400
-40,000
| -14% | -$1.72M |
|
899
Vontier
VNT
$4.52B
| $10.4M | 0.02% |
279,729
-161,100
| -37% | -$6.16M |
|
900
Schwab US Large- Cap ETF
SCHX
$75B
| $10.4M | 0.02% |
+385,900
| New | +$10.3M |
|
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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.