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 |
Alphabet (Google) Class A
GOOGL
|
+$546M |
| 2 |
Microsoft
MSFT
|
+$480M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$362M |
| 4 |
Meta Platforms (Facebook)
META
|
+$350M |
| 5 |
Coca-Cola
KO
|
+$266M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Robinhood
HOOD
|
+$1.04B |
| 2 |
Palantir
PLTR
|
+$800M |
| 3 |
Apple
AAPL
|
+$516M |
| 4 |
Netflix
NFLX
|
+$326M |
| 5 |
NVIDIA
NVDA
|
+$313M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 21.71% |
| 2 | Healthcare | 15.16% |
| 3 | Consumer Discretionary | 11.81% |
| 4 | Communication Services | 10.53% |
| 5 | Financials | 9.27% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
551
Liberty Media Series A
FWONA
$23.7B
| $30.4M | 0.04% |
319,022
+40,325
| +14% | +$3.68M |
|
552
iShares National Muni Bond ETF
MUB
$45.9B
| $30.4M | 0.04% |
285,100
-285,200
| -50% | -$29.8M |
|
553
Yelp
YELP
$1.32B
| $30.3M | 0.04% |
972,400
+32,900
| +4% | +$1.08M |
|
554
American Homes 4 Rent
AMH
$12.3B
| $30.2M | 0.04% |
908,029
+159,300
| +21% | +$5.55M |
|
555
Equity Lifestyle Properties
ELS
$12.6B
| $30.2M | 0.04% |
497,300
-182,500
| -27% | -$11.1M |
|
556
A.O. Smith
AOS
$8.49B
| $29.9M | 0.04% |
407,900
-207,200
| -34% | -$14.8M |
|
|
OKLO
557
Oklo
OKLO
$8.64B
| $29.9M | 0.04% |
+267,600
| New | +$21M |
|
558
Root
ROOT
$772M
| $29.9M | 0.04% |
333,616
-72,699
| -18% | -$7.62M |
|
559
Weatherford International
WFRD
$6.6B
| $29.8M | 0.04% |
435,353
-236,690
| -35% | -$14.1M |
|
560
Host Hotels & Resorts
HST
$15.6B
| $29.8M | 0.04% |
1,750,178
+868,378
| +98% | +$14.4M |
|
561
Gen Digital
GEN
$17.7B
| $29.5M | 0.04% |
1,037,338
+1,021,400
| +6,409% | +$30.5M |
|
562
AvePoint
AVPT
$2.91B
| $29.2M | 0.04% |
1,943,653
-127,347
| -6% | -$2.14M |
|
563
Trex
TREX
$5.1B
| $29.1M | 0.04% |
+563,600
| New | +$34.3M |
|
564
Dell
DELL
$320B
| $29.1M | 0.04% |
205,177
+132,000
| +180% | +$17.1M |
|
565
Stride
LRN
$3.48B
| $29M | 0.04% |
194,700
+72,400
| +59% | +$10.6M |
|
566
Teradyne
TER
$64.2B
| $29M | 0.04% |
210,500
-680,600
| -76% | -$74.4M |
|
567
MongoDB
MDB
$38B
| $28.8M | 0.04% |
92,900
-32,700
| -26% | -$8.41M |
|
568
Barrett Business Services
BBSI
$800M
| $28.7M | 0.04% |
647,300
-62,100
| -9% | -$2.84M |
|
569
Oil-Dri
ODC
$1.27B
| $28.6M | 0.04% |
468,792
-1,600
| -0.3% | -$97.2K |
|
570
Hecla Mining
HL
$11.9B
| $28.6M | 0.04% |
2,364,200
-2,203,068
| -48% | -$17.7M |
|
571
Suncor Energy
SU
$76.5B
| $28.6M | 0.04% |
683,626
-493,800
| -42% | -$19.8M |
|
572
Graco
GGG
$13.3B
| $28.5M | 0.04% |
336,000
+26,400
| +9% | +$2.26M |
|
573
Ecolab
ECL
$77.4B
| $28.5M | 0.04% |
104,142
-272,155
| -72% | -$73.9M |
|
574
Robert Half
RHI
$4.48B
| $28.4M | 0.04% |
836,600
+457,600
| +121% | +$17.2M |
|
575
Capitol Federal Financial
CFFN
$1.09B
| $28.4M | 0.04% |
4,474,897
-49,400
| -1% | -$309K |
|
Similar funds
Jim Simons's Q3 2025 Portfolio in Review
As of Q3 2025, Jim Simons held 4,038 positions worth $75.8B, up 0.77% from $75.2B the previous quarter. Its ten largest holdings account for 11% of the portfolio.
Jim Simons withdrew a net $5.41B in Q3 2025, closing 581 positions and reducing 1,457 holdings. Its most notable exit was GE Aerospace, an estimated $235M position sold in full.
By sector, the portfolio is most concentrated in Technology at 22% of assets, up from 20% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Jim Simons opened a new position in Alphabet (Google) Class C worth $419M.
- Jim Simons's largest Q3 2025 buy was Alphabet (Google) Class C: 1,720,002 shares worth $419M.
- Jim Simons added most to Alphabet (Google) Class A in Q3 2025, an estimated $546M increase.
- Jim Simons's biggest Q3 2025 reduction was Robinhood, cutting an estimated $1.04B.
- Jim Simons fully exited GE Aerospace in Q3 2025, selling an estimated $235M.
- Jim Simons's ten largest holdings make up 11% of its $75.8B portfolio in Q3 2025.
- Jim Simons opened 516 new positions and closed 581 in Q3 2025.
- Jim Simons's portfolio value rose 0.77% quarter-over-quarter to $75.8B.
Based on Renaissance Technologies's 13F filing for Q3 2025, filed 13 Nov 2025.