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 | |
|---|---|---|---|---|---|---|
1201
Prestige Consumer Healthcare
PBH
$2.43B
| $5.96M | 0.01% |
96,602
-132,600
| -58% | -$8.12M |
|
1202
Viant Technology
DSP
$264M
| $5.95M | 0.01% |
493,800
+12,683
| +3% | +$127K |
|
1203
Sierra Bancorp
BSRR
$532M
| $5.94M | 0.01% |
181,912
-11,300
| -6% | -$342K |
|
|
DX
1204
Dynex Capital
DX
$3.23B
| $5.93M | 0.01% |
+423,600
| New | +$5.72M |
|
1205
Kamada
KMDA
$419M
| $5.93M | 0.01% |
839,298
-32,681
| -4% | -$226K |
|
|
AVDL
1206
DELISTED
Avadel Pharmaceuticals
AVDL
| $5.9M | 0.01% |
273,600
-282,500
| -51% | -$5.48M |
|
|
FONR
1207
DELISTED
Fonar
FONR
| $5.86M | 0.01% |
315,716
+7,100
| +2% | +$107K |
|
1208
Annaly Capital Management
NLY
$17.6B
| $5.83M | 0.01% |
260,515
-2,387,500
| -90% | -$52M |
|
1209
Zymeworks
ZYME
$1.77B
| $5.82M | 0.01% |
220,877
-210,823
| -49% | -$4.6M |
|
|
NAGE
1210
Niagen Bioscience
NAGE
$241M
| $5.81M | 0.01% |
914,118
+201,118
| +28% | +$1.4M |
|
1211
Crawford & Co Class A
CRD.A
$627M
| $5.79M | 0.01% |
514,224
-25,000
| -5% | -$276K |
|
1212
Akebia Therapeutics
AKBA
$241M
| $5.78M | 0.01% |
3,593,133
-359,594
| -9% | -$753K |
|
|
TDAY
1213
USA Today Co
TDAY
$1B
| $5.77M | 0.01% |
1,119,419
-674,905
| -38% | -$3.17M |
|
1214
Walker & Dunlop
WD
$1.47B
| $5.76M | 0.01% |
95,800
+59,000
| +160% | +$4.19M |
|
1215
American Coastal Insurance
ACIC
$465M
| $5.75M | 0.01% |
454,957
+99,900
| +28% | +$1.21M |
|
1216
Home Bancorp
HBCP
$567M
| $5.73M | 0.01% |
99,073
-16,800
| -14% | -$935K |
|
1217
Bridgewater Bancshares
BWB
$614M
| $5.72M | 0.01% |
326,447
-62,700
| -16% | -$1.09M |
|
1218
UroGen Pharma
URGN
$2.34B
| $5.72M | 0.01% |
244,300
-30,800
| -11% | -$668K |
|
1219
Hallador Energy
HNRG
$743M
| $5.7M | 0.01% |
299,455
-26,700
| -8% | -$541K |
|
1220
RPC Inc
RES
$1.4B
| $5.69M | 0.01% |
1,046,419
+543,400
| +108% | +$2.82M |
|
1221
LifeVantage
LFVN
$81.9M
| $5.69M | 0.01% |
922,918
+70,900
| +8% | +$525K |
|
1222
iShares MSCI Taiwan ETF
EWT
$11.6B
| $5.68M | 0.01% |
89,400
+62,800
| +236% | +$4.04M |
|
1223
Tennant Co
TNC
$1.15B
| $5.67M | 0.01% |
76,900
+41,342
| +116% | +$3.16M |
|
1224
Companhia Siderúrgica Nacional
SID
$1.19B
| $5.66M | 0.01% |
3,537,900
+1,731,200
| +96% | +$2.81M |
|
1225
Bakkt Inc
BKKT
$331M
| $5.64M | 0.01% |
+562,100
| New | +$12.4M |
|
Similar funds
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.