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 | |
|---|---|---|---|---|---|---|
2451
Harvard Bioscience
HBIO
$30.4M
| $683K | ﹤0.01% |
102,124
+15,276
| +18% | +$90.6K |
|
2452
iBio
IBIO
$69.5M
| $682K | ﹤0.01% |
+353,339
| New | +$482K |
|
|
REFI
2453
Chicago Atlantic Real Estate Finance
REFI
$264M
| $682K | ﹤0.01% |
55,600
-39,400
| -41% | -$503K |
|
2454
CPS Technologies
CPSH
$83M
| $679K | ﹤0.01% |
219,858
+117,746
| +115% | +$417K |
|
|
SUPX
2455
SuperX AI Technology Ltd
SUPX
$301M
| $678K | ﹤0.01% |
+43,210
| New | +$1.81M |
|
2456
JPMorgan Chase
JPM
$965B
| $677K | ﹤0.01% |
2,101
-66
| -3% | -$20.4K |
|
2457
Cannae Holdings
CNNE
$675M
| $676K | ﹤0.01% |
43,000
-261,500
| -86% | -$4.45M |
|
2458
CarParts.com
PRTS
$50.3M
| $676K | ﹤0.01% |
135,270
+3,590
| +3% | +$20.1K |
|
2459
Oceaneering
OII
$5.11B
| $675K | ﹤0.01% |
28,100
-84,200
| -75% | -$2.03M |
|
2460
Pure Cycle
PCYO
$273M
| $674K | ﹤0.01% |
61,300
-1,600
| -3% | -$17.9K |
|
2461
SoundThinking
SSTI
$107M
| $672K | ﹤0.01% |
83,732
-55,200
| -40% | -$481K |
|
|
DOO
2462
Bombardier Recreational Products
DOO
$4.75B
| $672K | ﹤0.01% |
9,500
-5,500
| -37% | -$375K |
|
2463
Freshpet
FRPT
$3.5B
| $670K | ﹤0.01% |
11,000
-78,396
| -88% | -$4.45M |
|
2464
Bank of N.T. Butterfield & Son
NTB
$2.51B
| $669K | ﹤0.01% |
+13,434
| New | +$619K |
|
2465
First Trust NASDAQ Technology Dividend Index Fund
TDIV
$4.47B
| $668K | ﹤0.01% |
6,900
-7,400
| -52% | -$728K |
|
|
HYPD
2466
Hyperion DeFi Inc
HYPD
$42.9M
| $663K | ﹤0.01% |
+186,100
| New | +$1.06M |
|
2467
Crown Crafts
CRWS
$28.6M
| $661K | ﹤0.01% |
238,542
-27,900
| -10% | -$77.6K |
|
2468
First Commonwealth Financial
FCF
$2.19B
| $657K | ﹤0.01% |
38,965
+11,665
| +43% | +$191K |
|
2469
Neuronetics
STIM
$211M
| $655K | ﹤0.01% |
+474,900
| New | +$994K |
|
|
CTNM
2470
Contineum Therapeutics
CTNM
$576M
| $653K | ﹤0.01% |
57,100
+15,900
| +39% | +$181K |
|
2471
iShares Russell 1000 Value ETF
IWD
$84.3B
| $652K | ﹤0.01% |
3,100
-800
| -21% | -$165K |
|
2472
ProShares UltraShort Dow 30
DXD
$42.6M
| $652K | ﹤0.01% |
31,800
-10,600
| -25% | -$226K |
|
2473
Atlantic Union Bankshares
AUB
$6.09B
| $646K | ﹤0.01% |
+18,302
| New | +$629K |
|
|
FFWM
2474
DELISTED
First Foundation Inc
FFWM
| $646K | ﹤0.01% |
104,800
-446,300
| -81% | -$2.5M |
|
|
RPC
2475
Ridgepost Capital
RPC
$988M
| $645K | ﹤0.01% |
65,800
-147,950
| -69% | -$1.5M |
|
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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.