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 |
Alphabet (Google) Class A
GOOGL
|
+$546M |
| 2 |
Microsoft
MSFT
|
+$480M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$362M |
| 4 |
Meta Platforms (Facebook)
META
|
+$350M |
| 5 |
Coca-Cola
KO
|
+$266M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Robinhood
HOOD
|
+$1.04B |
| 2 |
Palantir
PLTR
|
+$800M |
| 3 |
Apple
AAPL
|
+$516M |
| 4 |
Netflix
NFLX
|
+$326M |
| 5 |
NVIDIA
NVDA
|
+$313M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 21.71% |
| 2 | Healthcare | 15.16% |
| 3 | Consumer Discretionary | 11.81% |
| 4 | Communication Services | 10.53% |
| 5 | Financials | 9.27% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
926
Seagate
STX
$209B
| $13.5M | 0.02% |
57,064
-528,229
| -90% | -$90.2M |
|
|
NFBK
927
DELISTED
Northfield Bancorp
NFBK
| $13.4M | 0.02% |
1,138,649
-127,400
| -10% | -$1.46M |
|
928
Global Industrial
GIC
$1.49B
| $13.4M | 0.02% |
366,379
+25,800
| +8% | +$866K |
|
929
Rigel Pharmaceuticals
RIGL
$782M
| $13.4M | 0.02% |
474,209
+237,763
| +101% | +$7.11M |
|
930
Assurant
AIZ
$13.9B
| $13.4M | 0.02% |
61,900
+59,500
| +2,479% | +$12.1M |
|
931
Genco Shipping & Trading
GNK
$1.1B
| $13.4M | 0.02% |
752,574
-262,030
| -26% | -$4.33M |
|
932
Sonos
SONO
$1.86B
| $13.4M | 0.02% |
847,400
+151,061
| +22% | +$1.94M |
|
933
Perion Network
PERI
$377M
| $13.4M | 0.02% |
1,394,615
+115,567
| +9% | +$1.16M |
|
|
SOHU
934
Sohu.com
SOHU
$369M
| $13.4M | 0.02% |
855,673
-21,700
| -2% | -$331K |
|
935
iShares Core 1-5 Year USD Bond ETF
ISTB
$5.14B
| $13.3M | 0.02% |
273,100
-133,400
| -33% | -$6.49M |
|
936
Credit Acceptance
CACC
$5.99B
| $13.3M | 0.02% |
28,488
+1,000
| +4% | +$499K |
|
937
StealthGas
GASS
$331M
| $13.3M | 0.02% |
2,029,276
+174,420
| +9% | +$1.21M |
|
938
Paylocity
PCTY
$8.1B
| $13.3M | 0.02% |
83,200
+37,816
| +83% | +$6.7M |
|
939
Syndax Pharmaceuticals
SNDX
$1.77B
| $13.2M | 0.02% |
860,500
+22,800
| +3% | +$298K |
|
940
Cirrus Logic
CRUS
$6.11B
| $13.2M | 0.02% |
105,520
-60,700
| -37% | -$6.76M |
|
941
Xeris Biopharma Holdings
XERS
$1.55B
| $13.2M | 0.02% |
1,622,840
-432,500
| -21% | -$2.87M |
|
942
Great Southern Bancorp
GSBC
$877M
| $13.2M | 0.02% |
215,500
-1,700
| -0.8% | -$104K |
|
943
Pricesmart
PSMT
$5.49B
| $13.2M | 0.02% |
108,800
-51,500
| -32% | -$5.69M |
|
944
BK Technologies
BKTI
$292M
| $13.2M | 0.02% |
155,722
+7,453
| +5% | +$426K |
|
945
EastGroup Properties
EGP
$10.9B
| $13.2M | 0.02% |
+77,700
| New | +$12.9M |
|
|
SII
946
Sprott
SII
$3.03B
| $13.1M | 0.02% |
157,788
+5,288
| +3% | +$369K |
|
|
OLP
947
One Liberty Properties
OLP
$523M
| $13.1M | 0.02% |
591,851
-18,200
| -3% | -$420K |
|
948
Toyota
TM
$223B
| $13.1M | 0.02% |
68,500
-38,100
| -36% | -$7.18M |
|
949
Employers Holdings
EIG
$864M
| $13.1M | 0.02% |
308,100
+38,200
| +14% | +$1.66M |
|
|
CSW
950
CSW Industrials
CSW
$5.65B
| $13.1M | 0.02% |
53,800
+50,600
| +1,581% | +$13.6M |
|
Similar funds
Jim Simons's Q3 2025 Portfolio in Review
As of Q3 2025, Jim Simons held 4,038 positions worth $75.8B, up 0.77% from $75.2B the previous quarter. Its ten largest holdings account for 11% of the portfolio.
Jim Simons withdrew a net $5.41B in Q3 2025, closing 581 positions and reducing 1,457 holdings. Its most notable exit was GE Aerospace, an estimated $235M position sold in full.
By sector, the portfolio is most concentrated in Technology at 22% of assets, up from 20% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Jim Simons opened a new position in Alphabet (Google) Class C worth $419M.
- Jim Simons's largest Q3 2025 buy was Alphabet (Google) Class C: 1,720,002 shares worth $419M.
- Jim Simons added most to Alphabet (Google) Class A in Q3 2025, an estimated $546M increase.
- Jim Simons's biggest Q3 2025 reduction was Robinhood, cutting an estimated $1.04B.
- Jim Simons fully exited GE Aerospace in Q3 2025, selling an estimated $235M.
- Jim Simons's ten largest holdings make up 11% of its $75.8B portfolio in Q3 2025.
- Jim Simons opened 516 new positions and closed 581 in Q3 2025.
- Jim Simons's portfolio value rose 0.77% quarter-over-quarter to $75.8B.
Based on Renaissance Technologies's 13F filing for Q3 2025, filed 13 Nov 2025.