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 |
Apple
AAPL
|
+$800M |
| 2 |
NVIDIA
NVDA
|
+$304M |
| 3 |
Broadcom
AVGO
|
+$261M |
| 4 |
Linde
LIN
|
+$237M |
| 5 |
JPMorgan Chase
JPM
|
+$208M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Costco
COST
|
+$656M |
| 2 |
Netflix
NFLX
|
+$632M |
| 3 |
Tesla
TSLA
|
+$474M |
| 4 |
Procter & Gamble
PG
|
+$428M |
| 5 |
Micron Technology
MU
|
+$332M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 22.04% |
| 2 | Healthcare | 15.35% |
| 3 | Industrials | 11.13% |
| 4 | Consumer Discretionary | 10.88% |
| 5 | Financials | 10.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1926
Empire State Realty Trust
ESRT
$838M
| $1.89M | ﹤0.01% |
363,700
+130,100
| +56% | +$781K |
|
1927
Unisys
UIS
$205M
| $1.89M | ﹤0.01% |
912,900
-410,333
| -31% | -$1.03M |
|
1928
Eastman Chemical
EMN
$8.39B
| $1.89M | ﹤0.01% |
24,740
-232,700
| -90% | -$16.8M |
|
|
DCBO
1929
Docebo
DCBO
$568M
| $1.89M | ﹤0.01% |
108,031
-7,000
| -6% | -$134K |
|
|
YSG
1930
Yatsen Holding
YSG
$324M
| $1.89M | ﹤0.01% |
612,593
+94,286
| +18% | +$379K |
|
1931
NeoGenomics
NEO
$2.11B
| $1.89M | ﹤0.01% |
+254,172
| New | +$2.67M |
|
1932
Aclaris Therapeutics
ACRS
$882M
| $1.88M | ﹤0.01% |
502,631
-622,700
| -55% | -$2.1M |
|
|
TRT
1933
Trio-Tech International
TRT
$119M
| $1.88M | ﹤0.01% |
325,526
+170
| +0.1% | +$997 |
|
1934
Celanese
CE
$4.82B
| $1.87M | ﹤0.01% |
28,500
-423,600
| -94% | -$22.1M |
|
1935
Murphy Oil
MUR
$4.98B
| $1.87M | ﹤0.01% |
45,437
-6,800
| -13% | -$230K |
|
1936
Zura Bio
ZURA
$541M
| $1.86M | ﹤0.01% |
313,300
+10,200
| +3% | +$61.6K |
|
|
JHG
1937
DELISTED
Janus Henderson
JHG
| $1.86M | ﹤0.01% |
36,200
-46,300
| -56% | -$2.29M |
|
1938
Knowles
KN
$3.29B
| $1.86M | ﹤0.01% |
72,400
-24,974
| -26% | -$632K |
|
1939
CION Investment
CION
$378M
| $1.86M | ﹤0.01% |
271,800
+11,000
| +4% | +$92.4K |
|
1940
ReposiTrak
TRAK
$153M
| $1.85M | ﹤0.01% |
243,963
+55,700
| +30% | +$535K |
|
1941
Airgain
AIRG
$69.6M
| $1.85M | ﹤0.01% |
336,336
+14,700
| +5% | +$66.9K |
|
1942
Invesco S&P 500 Quality ETF
SPHQ
$20B
| $1.85M | ﹤0.01% |
+24,600
| New | +$1.91M |
|
1943
Taysha Gene Therapies
TSHA
$1.95B
| $1.85M | ﹤0.01% |
413,203
+242,103
| +141% | +$1.13M |
|
1944
Sypris Solutions
SYPR
$50.6M
| $1.84M | ﹤0.01% |
646,656
-32,565
| -5% | -$104K |
|
1945
Walker & Dunlop
WD
$1.45B
| $1.84M | ﹤0.01% |
41,500
-54,300
| -57% | -$3.06M |
|
1946
Flexible Solutions
FSI
$63.7M
| $1.84M | ﹤0.01% |
340,945
+7,751
| +2% | +$44.6K |
|
|
CNTN
1947
Canton Strategic Holdings
CNTN
$153M
| $1.84M | ﹤0.01% |
+562,000
| New | +$2.22M |
|
1948
Valhi
VHI
$457M
| $1.84M | ﹤0.01% |
128,417
-8,500
| -6% | -$120K |
|
1949
Microchip Technology
MCHP
$43.2B
| $1.83M | ﹤0.01% |
28,356
-1,188,100
| -98% | -$85.5M |
|
1950
BRC Group Holdings
RILY
$302M
| $1.83M | ﹤0.01% |
+250,218
| New | +$1.87M |
|
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Jim Simons's Q1 2026 Portfolio in Review
As of Q1 2026, Jim Simons held 3,809 positions worth $63.9B, down 0.82% from $64.5B the previous quarter. Its ten largest holdings account for 11% of the portfolio.
Jim Simons's Q1 2026 filing shows 624 new, 1,320 increased, 1,262 reduced and 596 closed positions. Its largest new stake was Apple: 3,075,638 shares worth $781M. The largest sale was Costco, an estimated $656M.
By sector, the portfolio is most concentrated in Technology at 22% of assets, up from 21% a quarter earlier, followed by Healthcare and Industrials.
- Jim Simons's largest Q1 2026 buy was Apple: 3,075,638 shares worth $781M.
- Jim Simons added most to NVIDIA in Q1 2026, an estimated $304M increase.
- Jim Simons's biggest Q1 2026 reduction was Costco, cutting an estimated $656M.
- Jim Simons fully exited Procter & Gamble in Q1 2026, selling an estimated $428M.
- Jim Simons's ten largest holdings make up 11% of its $63.9B portfolio in Q1 2026.
- Jim Simons opened 624 new positions and closed 596 in Q1 2026.
- Jim Simons's portfolio value fell 0.82% quarter-over-quarter to $63.9B.
Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.