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 | |
|---|---|---|---|---|---|---|
2826
BancFirst
BANF
$3.89B
| $465K | ﹤0.01% |
+3,679
| New | +$475K |
|
2827
Value Line
VALU
$360M
| $465K | ﹤0.01% |
11,900
+100
| +0.8% | +$3.83K |
|
2828
Tango Therapeutics
TNGX
$4.32B
| $465K | ﹤0.01% |
55,300
-10,200
| -16% | -$69K |
|
2829
Verra Mobility
VRRM
$731M
| $464K | ﹤0.01% |
+18,800
| New | +$465K |
|
2830
SenesTech
SNES
$6.86M
| $464K | ﹤0.01% |
+105,635
| New | +$519K |
|
2831
Xtant Medical Holdings
XTNT
$43.5M
| $463K | ﹤0.01% |
713,915
+63,205
| +10% | +$39.9K |
|
|
LAR
2832
Lithium Argentina AG
LAR
$1.11B
| $463K | ﹤0.01% |
+138,600
| New | +$419K |
|
2833
LivePerson
LPSN
$35.9M
| $462K | ﹤0.01% |
52,813
+1,913
| +4% | +$26.9K |
|
2834
Actinium Pharmaceuticals
ATNM
$30.2M
| $462K | ﹤0.01% |
288,630
+79,129
| +38% | +$129K |
|
2835
Woori Financial
WF
$17.1B
| $460K | ﹤0.01% |
+8,200
| New | +$447K |
|
|
GHG
2836
GreenTree Hospitality
GHG
$110M
| $460K | ﹤0.01% |
208,889
-14,300
| -6% | -$31.7K |
|
2837
Renasant Corp
RNST
$4B
| $458K | ﹤0.01% |
12,428
-1,600
| -11% | -$60.5K |
|
2838
iShares US Telecommunications ETF
IYZ
$1.24B
| $458K | ﹤0.01% |
14,200
-68,300
| -83% | -$2.1M |
|
2839
Tradr 2X Long Innovation ETFShort Innovation Daily ETF
SARK
$38.5M
| $456K | ﹤0.01% |
15,900
+200
| +1% | +$6.54K |
|
2840
Interlink Electronics
LINK
$87.7M
| $455K | ﹤0.01% |
+53,694
| New | +$300K |
|
|
SPAI
2841
Safe Pro Group Inc
SPAI
$92.4M
| $453K | ﹤0.01% |
+64,600
| New | +$324K |
|
|
KZR
2842
DELISTED
Kezar Life Sciences
KZR
| $452K | ﹤0.01% |
115,885
+28,601
| +33% | +$117K |
|
2843
Netcapital
NCPL
$2.58M
| $452K | ﹤0.01% |
+188,146
| New | +$598K |
|
2844
Disc Medicine
IRON
$3.07B
| $449K | ﹤0.01% |
6,800
-89,620
| -93% | -$5.33M |
|
|
SRG
2845
Seritage Growth Properties
SRG
$131M
| $448K | ﹤0.01% |
105,500
+33,086
| +46% | +$116K |
|
2846
Rocket Pharmaceuticals
RCKT
$367M
| $447K | ﹤0.01% |
137,177
-324,197
| -70% | -$1.02M |
|
|
BBNX
2847
Beta Bionics
BBNX
$813M
| $447K | ﹤0.01% |
22,500
+6,000
| +36% | +$105K |
|
2848
MBIA
MBI
$254M
| $447K | ﹤0.01% |
60,000
-73,600
| -55% | -$467K |
|
2849
EverCommerce
EVCM
$1.76B
| $445K | ﹤0.01% |
40,000
+9,900
| +33% | +$111K |
|
2850
IRIDEX
IRIX
$14.3M
| $444K | ﹤0.01% |
389,060
+10,300
| +3% | +$12.7K |
|
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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.