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 | |
|---|---|---|---|---|---|---|
2376
Fractyl Health
GUTS
$108M
| $1.23M | ﹤0.01% |
+776,700
| New | +$1.01M |
|
2377
American Well
AMWL
$212M
| $1.23M | ﹤0.01% |
200,523
+25,100
| +14% | +$185K |
|
2378
Kaltura
KLTR
$249M
| $1.23M | ﹤0.01% |
856,400
-62,000
| -7% | -$105K |
|
2379
PACS Group
PACS
$7.04B
| $1.23M | ﹤0.01% |
89,800
-14,100
| -14% | -$165K |
|
2380
Voyager Therapeutics
VYGR
$201M
| $1.23M | ﹤0.01% |
262,450
-129,650
| -33% | -$469K |
|
2381
Wolverine World Wide
WWW
$1.72B
| $1.22M | ﹤0.01% |
+44,600
| New | +$1.17M |
|
2382
iShares 0-5 Year High Yield Corporate Bond ETF
SHYG
$7.62B
| $1.22M | ﹤0.01% |
28,202
-31,898
| -53% | -$1.37M |
|
2383
iShares MSCI Emerging Markets ETF
EEM
$30.5B
| $1.22M | ﹤0.01% |
22,800
-69,000
| -75% | -$3.46M |
|
|
MREO
2384
Mereo BioPharma
MREO
$50.9M
| $1.22M | ﹤0.01% |
590,871
-889,600
| -60% | -$1.64M |
|
2385
Norwood Financial Corp
NWFL
$376M
| $1.22M | ﹤0.01% |
47,825
+3,550
| +8% | +$90.6K |
|
|
AFBI
2386
DELISTED
Affinity Bancshares
AFBI
| $1.22M | ﹤0.01% |
61,648
+1,500
| +2% | +$28.7K |
|
|
REFI
2387
Chicago Atlantic Real Estate Finance
REFI
$260M
| $1.22M | ﹤0.01% |
95,000
-3,200
| -3% | -$43.9K |
|
2388
Hawthorn Bancshares
HWBK
$275M
| $1.21M | ﹤0.01% |
39,043
+4,668
| +14% | +$142K |
|
|
ZEUS
2389
DELISTED
Olympic Steel
ZEUS
| $1.21M | ﹤0.01% |
39,798
-11,900
| -23% | -$390K |
|
2390
2x Bitcoin ETF
BITX
$849M
| $1.21M | ﹤0.01% |
22,000
+9,100
| +71% | +$532K |
|
2391
Enliven Therapeutics
ELVN
$4.31B
| $1.21M | ﹤0.01% |
59,000
+35,100
| +147% | +$708K |
|
|
AEBI
2392
Aebi Schmidt Holding AG
AEBI
$985M
| $1.2M | ﹤0.01% |
+96,600
| New | +$1.22M |
|
2393
Biomea Fusion
BMEA
$95.7M
| $1.2M | ﹤0.01% |
+595,900
| New | +$1.09M |
|
2394
BuzzFeed
BZFD
$92.5M
| $1.19M | ﹤0.01% |
701,104
-144,857
| -17% | -$295K |
|
2395
Civista Bancshares
CIVB
$593M
| $1.19M | ﹤0.01% |
58,565
-11,600
| -17% | -$244K |
|
2396
Dimensional Core Fixed Income ETF
DFCF
$10.9B
| $1.19M | ﹤0.01% |
+27,800
| New | +$1.18M |
|
2397
MaxCyte
MXCT
$141M
| $1.19M | ﹤0.01% |
750,776
+32,976
| +5% | +$57.3K |
|
2398
Vanguard Industrials ETF
VIS
$8.54B
| $1.19M | ﹤0.01% |
4,000
+400
| +11% | +$116K |
|
2399
YieldMax Universe Fund of Option Income ETFs
YMAX
$395M
| $1.18M | ﹤0.01% |
92,400
-223,100
| -71% | -$2.94M |
|
2400
Stereotaxis
STXS
$137M
| $1.18M | ﹤0.01% |
380,400
+336,600
| +768% | +$872K |
|
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.