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 | |
|---|---|---|---|---|---|---|
851
Vishay Precision Group
VPG
$934M
| $15.8M | 0.02% |
491,673
-13,000
| -3% | -$376K |
|
852
Bumble
BMBL
$344M
| $15.7M | 0.02% |
2,584,286
+1,435,686
| +125% | +$9.81M |
|
|
DHIL
853
DELISTED
Diamond Hill
DHIL
| $15.7M | 0.02% |
112,346
+8,000
| +8% | +$1.17M |
|
854
Flowserve
FLS
$10.3B
| $15.7M | 0.02% |
295,800
-183,500
| -38% | -$9.96M |
|
855
Amphastar Pharmaceuticals
AMPH
$850M
| $15.6M | 0.02% |
586,900
+10,400
| +2% | +$269K |
|
856
Safe Bulkers
SB
$760M
| $15.6M | 0.02% |
3,516,252
+46,156
| +1% | +$196K |
|
|
PRMB
857
Primo Brands
PRMB
$8.65B
| $15.6M | 0.02% |
704,519
-211,947
| -23% | -$5.48M |
|
858
Cousins Properties
CUZ
$4.85B
| $15.5M | 0.02% |
536,931
+30,300
| +6% | +$860K |
|
859
DoubleVerify
DV
$2.04B
| $15.5M | 0.02% |
1,296,300
+1,224,200
| +1,698% | +$18.2M |
|
860
Kimberly-Clark
KMB
$36.2B
| $15.5M | 0.02% |
124,800
+61,900
| +98% | +$8M |
|
|
REVG
861
DELISTED
REV Group
REVG
| $15.5M | 0.02% |
273,500
+106,200
| +63% | +$5.64M |
|
862
Peloton Interactive
PTON
$2.44B
| $15.5M | 0.02% |
1,718,900
-1,865,900
| -52% | -$13.9M |
|
863
Post Holdings
POST
$3.65B
| $15.4M | 0.02% |
143,300
+134,700
| +1,566% | +$14.4M |
|
864
AptarGroup
ATR
$8.47B
| $15.4M | 0.02% |
115,100
+22,000
| +24% | +$3.18M |
|
865
Popular Inc
BPOP
$11.2B
| $15.4M | 0.02% |
121,025
-74,100
| -38% | -$8.86M |
|
|
FOLD
866
DELISTED
Amicus Therapeutics
FOLD
| $15.3M | 0.02% |
1,943,171
-70,422
| -3% | -$501K |
|
867
Banco Santander Chile
BSAC
$16B
| $15.3M | 0.02% |
576,027
-71,700
| -11% | -$1.76M |
|
868
Albemarle
ALB
$15.1B
| $15.3M | 0.02% |
188,208
-352,700
| -65% | -$27.2M |
|
869
John B. Sanfilippo & Son
JBSS
$989M
| $15.2M | 0.02% |
236,745
-35,000
| -13% | -$2.27M |
|
870
Akamai
AKAM
$17.6B
| $15.1M | 0.02% |
199,900
+124,000
| +163% | +$9.56M |
|
871
Central Garden & Pet Co Class A
CENTA
$2.43B
| $15.1M | 0.02% |
512,175
+43,600
| +9% | +$1.45M |
|
872
Groupon
GRPN
$901M
| $15M | 0.02% |
642,413
-110,400
| -15% | -$3.18M |
|
873
Preformed Line Products
PLPC
$2.29B
| $15M | 0.02% |
76,288
-16,828
| -18% | -$2.95M |
|
874
EverQuote
EVER
$867M
| $15M | 0.02% |
653,987
-35,600
| -5% | -$860K |
|
875
abrdn Physical Gold Shares ETF
SGOL
$7.42B
| $14.9M | 0.02% |
+405,800
| New | +$13.4M |
|
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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.