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 | |
|---|---|---|---|---|---|---|
2151
Karooooo
KARO
$1.97B
| $1.26M | ﹤0.01% |
27,587
+2,200
| +9% | +$103K |
|
2152
Rogers Corp
ROG
$2.46B
| $1.25M | ﹤0.01% |
13,700
-47,900
| -78% | -$4.11M |
|
2153
Transmedics
TMDX
$3.11B
| $1.25M | ﹤0.01% |
10,299
-134,900
| -93% | -$16.9M |
|
2154
Shattuck Labs
STTK
$735M
| $1.24M | ﹤0.01% |
340,700
+123,833
| +57% | +$295K |
|
2155
Vanguard Financials ETF
VFH
$14B
| $1.24M | ﹤0.01% |
9,300
+1,500
| +19% | +$195K |
|
2156
RenaissanceRe
RNR
$13.3B
| $1.24M | ﹤0.01% |
4,400
-75,482
| -94% | -$19.9M |
|
2157
Full House Resorts
FLL
$84.3M
| $1.24M | ﹤0.01% |
473,898
-29,800
| -6% | -$80K |
|
2158
Houlihan Lokey
HLI
$9.24B
| $1.24M | ﹤0.01% |
7,100
-155,600
| -96% | -$28.6M |
|
2159
iShares Core 60/40 Balanced Allocation ETF
AOR
$3.75B
| $1.24M | ﹤0.01% |
19,000
-2,600
| -12% | -$169K |
|
2160
Orthofix Medical
OFIX
$415M
| $1.23M | ﹤0.01% |
81,391
-14,700
| -15% | -$224K |
|
2161
Gold Royalty Corp
GROY
$716M
| $1.23M | ﹤0.01% |
305,400
+237,215
| +348% | +$908K |
|
|
LADR
2162
Ladder Capital
LADR
$1.27B
| $1.23M | ﹤0.01% |
111,941
-257,152
| -70% | -$2.79M |
|
|
DHC
2163
Diversified Healthcare Trust
DHC
$2.03B
| $1.23M | ﹤0.01% |
252,800
+52,300
| +26% | +$237K |
|
2164
Roundhill N-100 0DTE Covered Call Strategy ETF
QDTE
$964M
| $1.22M | ﹤0.01% |
39,700
-78,100
| -66% | -$2.72M |
|
2165
Distribution Solutions Group
DSGR
$1.61B
| $1.22M | ﹤0.01% |
44,700
-19,300
| -30% | -$543K |
|
2166
Chewy
CHWY
$9.2B
| $1.22M | ﹤0.01% |
37,028
-2,294,617
| -98% | -$79.7M |
|
2167
Red River Bancshares
RRBI
$681M
| $1.22M | ﹤0.01% |
17,101
+101
| +0.6% | +$6.91K |
|
2168
First US Bancshares
FUSB
$90.7M
| $1.22M | ﹤0.01% |
87,421
-3,900
| -4% | -$51.5K |
|
2169
MaxCyte
MXCT
$149M
| $1.22M | ﹤0.01% |
786,900
+36,124
| +5% | +$57.7K |
|
2170
Atossa Therapeutics
ATOS
$25.5M
| $1.22M | ﹤0.01% |
137,523
+34,279
| +33% | +$433K |
|
2171
Moog Inc Class B
MOG.B
| $1.22M | ﹤0.01% |
4,900
-200
| -4% | -$47K |
|
2172
Mission Produce
AVO
$1.15B
| $1.22M | ﹤0.01% |
104,800
-221,200
| -68% | -$2.65M |
|
2173
MetLife
MET
$61.9B
| $1.22M | ﹤0.01% |
15,400
-429,500
| -97% | -$34M |
|
2174
Lyell Immunopharma
LYEL
$337M
| $1.22M | ﹤0.01% |
39,490
-24,500
| -38% | -$548K |
|
2175
iShares Russell 2000 Value ETF
IWN
$14.7B
| $1.21M | ﹤0.01% |
+6,700
| New | +$1.2M |
|
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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.