Ion Asset Management Ltd.
CIK
1603837
Location
George Town, Grand Cayman, E9
Portfolio Value
Small
$829,649,104
Diversification
Diversified
Filing Date
Global Rank
#1,959
/ 7,976
▼ 706
Top Industry
Drug Manufacturers - Specialty & Generic
21.1%
3Y Alpha vs SPY
+16.1%
Period ended 9 months ago
Filed Nov 14, 2025 · 7mo
23 quarters · since Mar 2020
Clone Performance
Jun 2023–Jun 2026 · vs SPYHypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.
Cloned portfolio
+156.8%
SPY
+76.3%
Annualised alpha
+16.1%
Max drawdown
−32.7%
Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.
Portfolio Concentration
59 positions · as of Sep 30, 2025 · Δ vs Jun 30, 2025Top Position
13.4%
−24.5 pts
Top 5
41.2%
−20.7 pts
Top 10
63.9%
−17.5 pts
HHI
558
Diversified−1,124
Portfolio Trend
23 quarters · across all stocks
Sector Breakdown
As of Sep 30, 2025| Sector | % Portfolio | Value |
|---|---|---|
| Healthcare | 23.5% | $194,789,978 |
| Technology | 20.3% | $168,153,083 |
| Unclassified | 14.1% | $117,373,257 |
| Industrials | 12.3% | $101,632,756 |
| Energy | 11.8% | $97,807,918 |
| Real Estate | 5.5% | $45,593,180 |
| Consumer Cyclical | 4.1% | $34,052,598 |
| Consumer Defensive | 3.8% | $31,214,413 |
| Basic Materials | 3.3% | $27,569,221 |
| Financial Services | 1.4% | $11,462,700 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased
8 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| NXE | NexGen Energy Ltd. | +2,281,100 | 2,348,100 | $21,015,495 | |
| RIG | Transocean Ltd. | +297,679 | 4,197,679 | $13,096,758 | |
| QQQ | Invesco Qqq Trust, Series 1 | +45,800 | 120,000 | $72,044,400 | |
| MNDY | monday.com Ltd. | +9,220 | 55,000 | $10,652,950 | |
| BEKE | KE Holdings Inc. | +6,650 | 28,400 | $539,600 | |
| PARR | Par Pacific Holdings, Inc. | +5,260 | 36,860 | $1,305,581 | |
| GLNG | Golar Lng Ltd | +5,195 | 16,000 | $646,560 | |
| SCCO | Southern Copper Corp/ | +60 | 6,066 | $724,530 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced
25 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| TEVA | Teva Pharmaceutical Industries Ltd | −32,837,875 | 5,510,000 | $111,302,000 | |
| PRGO | PERRIGO Co plc | −2,057,621 | 1,760,000 | $39,195,200 | |
| DK | Delek US Holdings, Inc. | −1,898,890 | 1,845,000 | $59,538,150 | |
| LW | Lamb Weston Holdings, Inc. | −1,102,453 | 524,905 | $30,486,482 | |
| CIEN | Ciena Corp | −999,340 | 211,924 | $30,870,969 | |
| AER | AerCap Holdings N.V. | −648,983 | 300,000 | $36,300,000 | |
| CSGP | Costar Group, Inc. | −635,833 | 534,000 | $45,053,580 | |
| IBIT | iShares Bitcoin Trust ETF | −450,000 | 40,000 | $2,600,000 | |
| ILMN | Illumina, Inc. | −356,921 | 394,000 | $37,418,180 | |
| NMM | Navios Maritime Partners L.P. | −351,963 | 466,000 | $20,993,300 | |
| DAC | Danaos Corp | −259,963 | 394,345 | $35,416,124 | |
| CVI | Cvr Energy Inc | −173,915 | 33,385 | $1,217,884 | |
| SLV | iShares Silver Trust | −167,225 | 952,175 | $40,343,654 | |
| TTMI | Ttm Technologies Inc | −157,179 | 16,000 | $921,600 | |
| FCX | Freeport-Mcmoran Inc | −150,000 | 21,520 | $844,014 | |
| DT | Dynatrace, Inc. | −100,000 | 200,000 | $9,690,000 | |
| PHIN | Phinia Inc. | −91,943 | 533,469 | $30,663,798 | |
| XYZ | Block, Inc. | −50,000 | 130,000 | $9,395,100 | |
| UAN | Cvr Partners, LP | −46,207 | 40,393 | $3,640,217 | |
| OKTA | Okta, Inc. | −36,871 | 130,000 | $11,921,000 | |
| MP | MP Materials Corp. / DE | −18,445 | 12,985 | $870,903 | |
| KTOS | Kratos Defense & Security Solutions, Inc. | −5,455 | 12,285 | $1,122,480 | |
| EOG | Eog Resources Inc | −3,500 | 2,000 | $224,240 | |
| LITE | Lumentum Holdings Inc. | −1,186 | 8,000 | $1,301,680 | |
| AEM | Agnico Eagle Mines Ltd | −540 | 10,530 | $1,774,936 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarter
12 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| CHKP | Check Point Software Technologies Ltd | 258,615 | $53,510,029 | |
| CRWV | CoreWeave, Inc. | 146,900 | $20,103,265 | |
| DD | DuPont de Nemours, Inc. | 451,000 | $14,699,939 | |
| FOLD | AMICUS THERAPEUTICS, INC. | 872,411 | $6,874,598 | |
| VRNS | Varonis Systems Inc | 90,000 | $5,172,300 | |
| VIA | Via Transportation, Inc. | 100,000 | $4,808,000 | |
| CRS | Carpenter Technology Corp | 16,400 | $4,026,856 | |
| MBLY | Mobileye Global Inc. | 240,000 | $3,388,800 | |
| KLAR | Klarna Group plc | 50,000 | $1,832,500 | |
| VALE | Vale S.A. | 81,800 | $888,348 | |
| TSM | Taiwan Semiconductor Manufacturing Co Ltd | 3,000 | $837,870 | |
| ADM | Archer-Daniels-Midland Co | 12,185 | $727,931 | |
| No positions match the current search. | ||||
Sold Out
Positions the filer fully exited
10 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| IMAX | Imax Corp | 777,800 | $21,747,288 | |
| ZIM | ZIM Integrated Shipping Services Ltd. | 947,300 | $15,242,057 | |
| TTD | Trade Desk, Inc. | 80,000 | $5,759,200 | |
| MTSI | MACOM Technology Solutions Holdings, Inc. | 20,000 | $2,865,800 | |
| VOYG | Voyager Technologies, Inc./DE | 50,000 | $1,962,500 | |
| PANW | Palo Alto Networks Inc | 5,700 | $1,166,448 | |
| KMI | Kinder Morgan, Inc. | 28,700 | $843,780 | |
| XOM | Exxon Mobil Corp | 6,150 | $662,970 | |
| PAA | Plains All American Pipeline LP | 24,200 | $443,344 | |
| COST | Costco Wholesale Corp /New | 295 | $292,032 | |
| No positions match the current search. | ||||
59 positions ·
$829,649,104 total
· as of Sep 30, 2025
All sectors
Basic Materials
Consumer Cyclical
Consumer Defensive
Energy
Financial Services
Healthcare
Industrials
Real Estate
Technology
Showing 1–50
of 59 positions by value
· page 1 of 2
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| TEVA |
Teva Pharmaceutical Industries Ltd
Healthcare
|
Reduced | 5,510,000 | $111,302,000 | 13.42% | |
| QQQ |
Invesco Qqq Trust, Series 1
|
Added | 120,000 | $72,044,400 | 8.68% | |
| DK |
Delek US Holdings, Inc.
Energy
|
Reduced | 1,845,000 | $59,538,150 | 7.18% | |
| CHKP |
Check Point Software Technologies Ltd
Technology
|
NEW | 258,615 | $53,510,029 | 6.45% | |
| CSGP |
Costar Group, Inc.
Real Estate
|
Reduced | 534,000 | $45,053,580 | 5.43% | |
| SLV |
iShares Silver Trust
|
Reduced | 952,175 | $40,343,654 | 4.86% | |
| PRGO |
PERRIGO Co plc
Healthcare
|
Reduced | 1,760,000 | $39,195,200 | 4.72% | |
| ILMN |
Illumina, Inc.
Healthcare
|
Reduced | 394,000 | $37,418,180 | 4.51% | |
| AER |
AerCap Holdings N.V.
Industrials
|
Reduced | 300,000 | $36,300,000 | 4.38% | |
| DAC |
Danaos Corp
Industrials
|
Reduced | 394,345 | $35,416,124 | 4.27% | |
| CIEN |
Ciena Corp
Technology
|
Reduced | 211,924 | $30,870,969 | 3.72% | |
| PHIN |
Phinia Inc.
Consumer Cyclical
|
Reduced | 533,469 | $30,663,798 | 3.70% | |
| LW |
Lamb Weston Holdings, Inc.
Consumer Defensive
|
Reduced | 524,905 | $30,486,482 | 3.67% | |
| NXE |
NexGen Energy Ltd.
Energy
|
Added | 2,348,100 | $21,015,495 | 2.53% | |
| NMM |
Navios Maritime Partners L.P.
Industrials
|
Reduced | 466,000 | $20,993,300 | 2.53% | |
| CRWV |
CoreWeave, Inc.
Technology
|
NEW | 146,900 | $20,103,265 | 2.42% | |
| DD |
DuPont de Nemours, Inc.
Basic Materials
|
NEW | 451,000 | $14,699,939 | 1.77% | |
| RIG |
Transocean Ltd.
Energy
|
Added | 4,197,679 | $13,096,758 | 1.58% | |
| OKTA |
Okta, Inc.
Technology
|
Reduced | 130,000 | $11,921,000 | 1.44% | |
| MNDY |
monday.com Ltd.
Technology
|
Added | 55,000 | $10,652,950 | 1.28% | |
| DT |
Dynatrace, Inc.
Technology
|
Reduced | 200,000 | $9,690,000 | 1.17% | |
| XYZ |
Block, Inc.
Technology
|
Reduced | 130,000 | $9,395,100 | 1.13% | |
| ITRI |
Itron, Inc.
Technology
|
Held | 72,000 | $8,968,320 | 1.08% | |
| ETOR |
eToro Group Ltd.
Financial Services
|
Held | 200,000 | $8,254,000 | 0.99% | |
| FOLD |
AMICUS THERAPEUTICS, INC.
Healthcare
|
NEW | 872,411 | $6,874,598 | 0.83% | |
| VRNS |
Varonis Systems Inc
Technology
|
NEW | 90,000 | $5,172,300 | 0.62% | |
| VIA |
Via Transportation, Inc.
Technology
|
NEW | 100,000 | $4,808,000 | 0.58% | |
| CRS |
Carpenter Technology Corp
Industrials
|
NEW | 16,400 | $4,026,856 | 0.49% | |
| UAN |
Cvr Partners, LP
Basic Materials
|
Reduced | 40,393 | $3,640,217 | 0.44% | |
| MBLY |
Mobileye Global Inc.
Consumer Cyclical
|
NEW | 240,000 | $3,388,800 | 0.41% | |
| IBIT |
iShares Bitcoin Trust ETF
|
Reduced | 40,000 | $2,600,000 | 0.31% | |
| GLD |
Spdr Gold Trust
|
Held | 6,710 | $2,385,203 | 0.29% | |
| KLAR |
Klarna Group plc
Financial Services
|
NEW | 50,000 | $1,832,500 | 0.22% | |
| AEM |
Agnico Eagle Mines Ltd
Basic Materials
|
Reduced | 10,530 | $1,774,936 | 0.21% | |
| WPM |
Wheaton Precious Metals Corp.
Basic Materials
|
Held | 13,695 | $1,531,648 | 0.18% | |
| IBKR |
Interactive Brokers Group, Inc.
Financial Services
|
Held | 20,000 | $1,376,200 | 0.17% | |
| PARR |
Par Pacific Holdings, Inc.
Energy
|
Added | 36,860 | $1,305,581 | 0.16% | |
| CMI |
Cummins Inc
Industrials
|
Held | 3,085 | $1,303,011 | 0.16% | |
| LITE |
Lumentum Holdings Inc.
Technology
|
Reduced | 8,000 | $1,301,680 | 0.16% | |
| CVI |
Cvr Energy Inc
Energy
|
Reduced | 33,385 | $1,217,884 | 0.15% | |
| KTOS |
Kratos Defense & Security Solutions, Inc.
Industrials
|
Reduced | 12,285 | $1,122,480 | 0.14% | |
| MOS |
Mosaic Co
Basic Materials
|
Held | 27,150 | $941,562 | 0.11% | |
| TTMI |
Ttm Technologies Inc
Technology
|
Reduced | 16,000 | $921,600 | 0.11% | |
| VALE |
Vale S.A.
Basic Materials
|
NEW | 81,800 | $888,348 | 0.11% | |
| MP |
MP Materials Corp. / DE
Basic Materials
|
Reduced | 12,985 | $870,903 | 0.10% | |
| FCX |
Freeport-Mcmoran Inc
Basic Materials
|
Reduced | 21,520 | $844,014 | 0.10% | |
| TSM |
Taiwan Semiconductor Manufacturing Co Ltd
Technology
|
NEW | 3,000 | $837,870 | 0.10% | |
| NTR |
Nutrien Ltd.
Basic Materials
|
Held | 14,150 | $830,746 | 0.10% | |
| RGLD |
Royal Gold Inc
Basic Materials
|
Held | 4,100 | $822,378 | 0.10% | |
| VAL |
Valaris Ltd
Energy
|
Held | 15,650 | $763,250 | 0.09% |