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 | |
|---|---|---|---|---|---|---|
|
AFBI
2176
DELISTED
Affinity Bancshares
AFBI
| $1.21M | ﹤0.01% |
59,248
-2,400
| -4% | -$47K |
|
2177
Ultralife
ULBI
$124M
| $1.21M | ﹤0.01% |
210,990
-3,600
| -2% | -$22.2K |
|
2178
Codexis
CDXS
$175M
| $1.2M | ﹤0.01% |
737,485
+426,999
| +138% | +$871K |
|
2179
Aware
AWRE
$26.4M
| $1.19M | ﹤0.01% |
645,573
-14,434
| -2% | -$32.6K |
|
|
ARX
2180
Accelerant Holdings
ARX
$4.26B
| $1.19M | ﹤0.01% |
+72,700
| New | +$1.02M |
|
2181
DLH Holdings
DLHC
$68.7M
| $1.19M | ﹤0.01% |
210,064
-42,000
| -17% | -$244K |
|
2182
Hyster-Yale Materials Handling
HY
$617M
| $1.19M | ﹤0.01% |
39,900
-2,400
| -6% | -$79.1K |
|
2183
Hagerty
HGTY
$1.32B
| $1.18M | ﹤0.01% |
87,968
-30,000
| -25% | -$374K |
|
2184
FVCBankcorp
FVCB
$339M
| $1.18M | ﹤0.01% |
84,775
+14,900
| +21% | +$191K |
|
2185
Panagram BBB-B CLO ETF
CLOZ
$805M
| $1.17M | ﹤0.01% |
44,256
-131,076
| -75% | -$3.49M |
|
2186
NI Holdings
NODK
$313M
| $1.17M | ﹤0.01% |
88,091
-5,900
| -6% | -$79.6K |
|
2187
First Trust RBA American Industrial Renaissance ETF
AIRR
$10.7B
| $1.17M | ﹤0.01% |
11,900
-8,800
| -43% | -$862K |
|
|
AXIA
2188
DELISTED
AXIA Energia
AXIA
| $1.17M | ﹤0.01% |
127,440
-181,576
| -59% | -$1.57M |
|
2189
908 Devices
MASS
$418M
| $1.17M | ﹤0.01% |
222,100
+12,800
| +6% | +$89.4K |
|
2190
Voyager Therapeutics
VYGR
$198M
| $1.17M | ﹤0.01% |
296,450
+34,000
| +13% | +$150K |
|
2191
JPMorgan US Tech Leaders ETF
JTEK
$4.61B
| $1.16M | ﹤0.01% |
12,900
-8,300
| -39% | -$762K |
|
2192
Rimini Street
RMNI
$470M
| $1.16M | ﹤0.01% |
299,226
-49,778
| -14% | -$207K |
|
|
LPRO
2193
DELISTED
Open Lending Corp
LPRO
| $1.16M | ﹤0.01% |
745,196
-226,981
| -23% | -$403K |
|
|
MOFG
2194
DELISTED
MidWestOne Financial Group
MOFG
| $1.16M | ﹤0.01% |
+30,000
| New | +$1.09M |
|
2195
Columbia Research Enhanced Core ETF
RECS
$6.09B
| $1.15M | ﹤0.01% |
28,200
-7,971
| -22% | -$324K |
|
2196
United-Guardian
UG
$32.9M
| $1.15M | ﹤0.01% |
186,645
+1,882
| +1% | +$12.4K |
|
2197
Kenon Holdings
KEN
$3.53B
| $1.15M | ﹤0.01% |
17,300
-800
| -4% | -$44.6K |
|
|
MBCN
2198
DELISTED
Middlefield Banc Corp
MBCN
| $1.15M | ﹤0.01% |
33,212
-2,900
| -8% | -$96.3K |
|
2199
Titan Machinery
TITN
$420M
| $1.15M | ﹤0.01% |
+76,228
| New | +$1.23M |
|
2200
iShares MSCI Intl Quality Factor ETF
IQLT
$14.3B
| $1.15M | ﹤0.01% |
+25,200
| New | +$1.13M |
|
Similar funds
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.