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 | |
|---|---|---|---|---|---|---|
2351
STAAR Surgical
STAA
$1.26B
| $873K | ﹤0.01% |
+37,800
| New | +$974K |
|
2352
First Mid Bancshares
FMBH
$1.39B
| $866K | ﹤0.01% |
22,200
+6,700
| +43% | +$255K |
|
2353
First Trust Global Tactical Commodity Strategy Fund
FTGC
$3.07B
| $862K | ﹤0.01% |
37,100
-28,300
| -43% | -$735K |
|
2354
NRG Energy
NRG
$25.2B
| $860K | ﹤0.01% |
5,400
-67,400
| -93% | -$11.2M |
|
2355
Peapack-Gladstone Financial
PGC
$822M
| $855K | ﹤0.01% |
30,716
-40,378
| -57% | -$1.1M |
|
2356
ProShares Short Bitcoin Strategy ETF
BITI
$120M
| $853K | ﹤0.01% |
36,800
+17,200
| +88% | +$359K |
|
2357
Avantis US Large Cap Value ETF
AVLV
$18.4B
| $849K | ﹤0.01% |
11,200
-10,200
| -48% | -$750K |
|
2358
Imperial Petroleum
IMPP
$210M
| $848K | ﹤0.01% |
234,344
+10,648
| +5% | +$52.4K |
|
2359
Citizens
CIA
$198M
| $848K | ﹤0.01% |
175,594
-22,000
| -11% | -$121K |
|
2360
8x8 Inc
EGHT
$303M
| $848K | ﹤0.01% |
430,395
+23,300
| +6% | +$45.9K |
|
2361
ACI Worldwide
ACIW
$5.42B
| $848K | ﹤0.01% |
+17,733
| New | +$860K |
|
|
LOAN
2362
Manhattan Bridge Capital
LOAN
$47.2M
| $845K | ﹤0.01% |
181,728
+7,900
| +5% | +$39.1K |
|
2363
Invesco S&P MidCap Momentum ETF
XMMO
$7.61B
| $845K | ﹤0.01% |
+6,100
| New | +$834K |
|
|
THS
2364
DELISTED
Treehouse Foods
THS
| $842K | ﹤0.01% |
35,700
-36,600
| -51% | -$799K |
|
|
SNCR
2365
DELISTED
Synchronoss Technologies
SNCR
| $842K | ﹤0.01% |
98,374
-7,800
| -7% | -$48.1K |
|
2366
Exagen
XGN
$159M
| $839K | ﹤0.01% |
+138,000
| New | +$1.26M |
|
2367
Kelly Services Class A
KELYA
$566M
| $839K | ﹤0.01% |
95,308
-255,600
| -73% | -$2.6M |
|
2368
Kaiser Aluminum
KALU
$2.99B
| $838K | ﹤0.01% |
7,300
+900
| +14% | +$85.7K |
|
2369
Pyxis Oncology
PYXS
$191M
| $838K | ﹤0.01% |
728,380
+152,044
| +26% | +$536K |
|
2370
Matsons
MATX
$6.39B
| $828K | ﹤0.01% |
+6,700
| New | +$720K |
|
2371
National Bankshares
NKSH
$272M
| $827K | ﹤0.01% |
24,670
+200
| +0.8% | +$6.06K |
|
|
KZR
2372
DELISTED
Kezar Life Sciences
KZR
| $826K | ﹤0.01% |
131,285
+15,400
| +13% | +$89.8K |
|
2373
AMC Global Media
AMCX
$496M
| $821K | ﹤0.01% |
86,200
-1,600
| -2% | -$13.5K |
|
|
RPT
2374
Rithm Property Trust
RPT
$101M
| $816K | ﹤0.01% |
49,217
-24,670
| -33% | -$379K |
|
2375
Identive
INVE
$64.1M
| $815K | ﹤0.01% |
212,182
-9,978
| -4% | -$36K |
|
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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.