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 | |
|---|---|---|---|---|---|---|
2276
Immuneering
IMRX
$336M
| $1M | ﹤0.01% |
152,300
+117,300
| +335% | +$753K |
|
2277
State Street SPDR Portfolio Emerging Markets ETF
SPEM
$17.7B
| $1M | ﹤0.01% |
+21,400
| New | +$1.01M |
|
2278
Duos Technologies
DUOT
$294M
| $1M | ﹤0.01% |
89,000
-90,513
| -50% | -$849K |
|
2279
Esquire Financial Holdings
ESQ
$1.59B
| $1M | ﹤0.01% |
+9,800
| New | +$993K |
|
2280
MainStreet Bancshares
MNSB
$179M
| $998K | ﹤0.01% |
49,000
-388
| -0.8% | -$7.58K |
|
2281
Pioneer Bancorp
PBFS
$418M
| $997K | ﹤0.01% |
73,979
-13,781
| -16% | -$185K |
|
|
SLDE
2282
Slide Insurance Holdings
SLDE
$2.52B
| $996K | ﹤0.01% |
51,110
-88,790
| -63% | -$1.48M |
|
2283
Peoples Financial Services
PFIS
$717M
| $990K | ﹤0.01% |
20,327
-5,500
| -21% | -$266K |
|
2284
Northern Technologies International Corp
NTIC
$76.7M
| $990K | ﹤0.01% |
126,377
+16,500
| +15% | +$127K |
|
2285
RGC Resources
RGCO
$226M
| $989K | ﹤0.01% |
46,433
-600
| -1% | -$13.1K |
|
2286
CNA Financial
CNA
$13.8B
| $988K | ﹤0.01% |
+20,700
| New | +$954K |
|
2287
Vinci Compass Investments Ltd
VINP
$623M
| $986K | ﹤0.01% |
75,636
+3,504
| +5% | +$41.8K |
|
2288
Toro Corp
TORO
$195M
| $986K | ﹤0.01% |
186,700
+30,100
| +19% | +$130K |
|
2289
Outdoor Holding Co
POWW
$255M
| $985K | ﹤0.01% |
576,000
+10,800
| +2% | +$18.6K |
|
2290
Yatra Online
YTRA
$55.3M
| $984K | ﹤0.01% |
552,736
-398
| -0.1% | -$655 |
|
2291
Direxion Daily CSI China Internet Index Bull 2X ETF
CWEB
$226M
| $983K | ﹤0.01% |
+24,500
| New | +$1.18M |
|
2292
E.W. Scripps
SSP
$310M
| $982K | ﹤0.01% |
246,231
-125,981
| -34% | -$424K |
|
2293
Playboy Inc
PLBY
$149M
| $980K | ﹤0.01% |
521,126
-105,479
| -17% | -$172K |
|
2294
Flanigan's Enterprises
BDL
$89.2M
| $977K | ﹤0.01% |
32,993
-800
| -2% | -$24.8K |
|
|
SEVN
2295
Seven Hills Realty Trust
SEVN
$175M
| $977K | ﹤0.01% |
109,724
-4,910
| -4% | -$46.1K |
|
2296
Geron
GERN
$982M
| $973K | ﹤0.01% |
737,166
-1,627,114
| -69% | -$2.04M |
|
2297
American Well
AMWL
$220M
| $971K | ﹤0.01% |
197,823
-2,700
| -1% | -$13K |
|
2298
Schwab Short-Term US Treasury ETF
SCHO
$13B
| $970K | ﹤0.01% |
39,823
-1,781,261
| -98% | -$43.4M |
|
|
FARM
2299
DELISTED
Farmer Brothers
FARM
| $969K | ﹤0.01% |
664,036
-91,542
| -12% | -$148K |
|
2300
Perspective Therapeutics
CATX
$354M
| $969K | ﹤0.01% |
+352,493
| New | +$1.01M |
|
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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.