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 | |
|---|---|---|---|---|---|---|
1776
Marchex
MCHX
$82M
| $2.49M | ﹤0.01% |
1,605,904
-51,460
| -3% | -$81K |
|
1777
TechTarget
TTGT
$278M
| $2.49M | ﹤0.01% |
641,400
-72,700
| -10% | -$334K |
|
1778
Chegg
CHGG
$87.5M
| $2.48M | ﹤0.01% |
3,346,800
+10,820
| +0.3% | +$7.6K |
|
1779
Krystal Biotech
KRYS
$9.83B
| $2.48M | ﹤0.01% |
9,600
+6,300
| +191% | +$1.68M |
|
1780
Franklin Electric
FELE
$4.68B
| $2.48M | ﹤0.01% |
26,900
-75,300
| -74% | -$7.39M |
|
|
ACB
1781
Aurora Cannabis
ACB
$228M
| $2.48M | ﹤0.01% |
758,181
-12,063
| -2% | -$45.6K |
|
1782
Ring Energy
REI
$357M
| $2.48M | ﹤0.01% |
1,620,250
-130,457
| -7% | -$166K |
|
1783
Agnico Eagle Mines
AEM
$94.4B
| $2.48M | ﹤0.01% |
+12,197
| New | +$2.54M |
|
1784
LCI Industries
LCII
$2.58B
| $2.47M | ﹤0.01% |
20,100
-6,097
| -23% | -$834K |
|
1785
Forrester Research
FORR
$217M
| $2.47M | ﹤0.01% |
436,706
-11,300
| -3% | -$77.2K |
|
1786
Cass Information Systems
CASS
$748M
| $2.46M | ﹤0.01% |
55,860
-21,600
| -28% | -$951K |
|
|
XZO
1787
Exzeo Group
XZO
$1.37B
| $2.46M | ﹤0.01% |
+167,618
| New | +$2.98M |
|
1788
Ovid Therapeutics
OVID
$528M
| $2.45M | ﹤0.01% |
1,104,300
-380,178
| -26% | -$680K |
|
1789
iShares Russell Mid-Cap ETF
IWR
$58.4B
| $2.45M | ﹤0.01% |
25,200
-9,600
| -28% | -$959K |
|
|
IMSR
1790
Terrestrial Energy
IMSR
$624M
| $2.45M | ﹤0.01% |
407,900
+235,100
| +136% | +$1.86M |
|
1791
IBEX
IBEX
$480M
| $2.45M | ﹤0.01% |
91,291
-1,303
| -1% | -$42.2K |
|
|
HITI
1792
High Tide
HITI
$206M
| $2.44M | ﹤0.01% |
1,067,632
+122,569
| +13% | +$301K |
|
1793
Tenax Therapeutics
TENX
$67.4M
| $2.44M | ﹤0.01% |
152,600
+27,021
| +22% | +$366K |
|
1794
Sutro Biopharma
STRO
$340M
| $2.44M | ﹤0.01% |
97,824
-25,041
| -20% | -$453K |
|
1795
Jakks Pacific
JAKK
$294M
| $2.44M | ﹤0.01% |
122,318
-39,200
| -24% | -$760K |
|
1796
LCNB Corp
LCNB
$283M
| $2.44M | ﹤0.01% |
156,283
+18,167
| +13% | +$304K |
|
1797
Ouster
OUST
$3.51B
| $2.44M | ﹤0.01% |
+132,600
| New | +$2.89M |
|
1798
Haemonetics
HAE
$4.13B
| $2.43M | ﹤0.01% |
+43,200
| New | +$2.81M |
|
|
BIOA
1799
BioAge Labs
BIOA
$487M
| $2.42M | ﹤0.01% |
138,588
+120,188
| +653% | +$2.31M |
|
1800
MBIA
MBI
$264M
| $2.42M | ﹤0.01% |
409,892
+268,100
| +189% | +$1.71M |
|
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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.