Segra Capital Management, LLC holds a concentrated book of 7 stocks worth $435.0M as of Q2 2026 (disclosed Aug 12, 2026, a ~43-day 13F lag). This quarter they opened X-Energy Inc. Their largest long position is X-Energy Inc at 61% of the equity book. They also disclosed $31.6M in put options (a bearish bet) and $29.0M in call options (bullish), shown separately below and excluded from the equity book.
Top-heavy: concentrated book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
39% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices, no cost basis
Other tracked managers holding the same core names as Segra Capital Management, LLC
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | 9 / 7 | $11.9B |
| MORGAN STANLEY | 8 / 7 | $10.1B |
| JPMORGAN CHASE & CO | 8 / 7 | $7.6B |
| BANK OF AMERICA CORP /DE/ | 8 / 7 | $4.1B |
| GOLDMAN SACHS GROUP INC | 8 / 7 | $3.5B |
| UBS Group AG | 8 / 7 | $3.2B |
| WELLS FARGO & COMPANY/MN | 8 / 7 | $2.3B |
| ROYAL BANK OF CANADA | 8 / 7 | $1.6B |
Ranked by how many of Segra Capital Management, LLC's top 7 disclosed names each fund also holds: a cross-fund conviction signal from the latest 13F of every tracked manager.
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | X-Energy Inc COM CL A | $265.8M | 14.48M | 61.1% | ▲New New position | |
| 2 | Vistra Corp COM | $46.9M | 296.0K | 10.8% | ▲+79% Added · +131K sh | |
| 3 | Amentum Holdings Inc COM | $42.1M | 2.04M | 9.7% | ▲+26% Added · +425K sh | |
| 4 | Constellation Energy Corp COM | $31.8M | 128.0K | 7.3% | ▲+4.1% Added · +5K sh | |
| 5 | NRG Energy Inc COM NEW | $19.0M | 130.0K | 4.4% | ▲New New position | |
| 6 | Flowserve Corp COM | $16.5M | 222.6K | 3.8% | ▲New New position | |
| 7 | Terra Innovatum Global NV ORD SHS | $12.9M | 2.62M | 3.0% | ▲+3.3% Added · +83K sh |
The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This fund page is the Follow view. The Build view lets your agent pull holdings, quarter changes, overlap, and source filings through API or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/1607512/holdings"
Use Arkolith to show SEGRA CAPITAL MANAGEMENT, LLC's latest holdings, largest changes, and filing provenance.
Put / call positions from the 13F — totals include every disclosed option leg
| Type | Underlying | Notional value | Underlying shares |
|---|---|---|---|
| PUT · bearish | DUKE ENERGY CORPDUK | $31.6M | 250K |
| CALL · bullish | CONSTELLATION ENERGYCEG | $24.8M | 100K |
| CALL · bullish | AMENTUM HOLDINGS INCAMTM | $4.1M | 200K |
13F filers disclose option positions at the market value of the underlying the contracts reference, not the premium paid. A put is a bearish bet (it gains if the stock falls); a call is bullish. “Underlying shares” is the share count the contracts control, not a share holding. These legs are excluded from the equity book, weighting, concentration and sector figures above.
As-of date vs the date the SEC received each filing
Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.