SEI · 2026-09-11
Solaris: a stronger business case, a less attractive starting price
11 September 2026 · Reconstructed sample · Research through 11 September 2026; price through 10 September 2026
What matters
Solaris Energy Infrastructure (SEI) remains in our A group. Its business case strengthened this week, but the stock has already moved sharply. The opportunity and the starting price deserve separate judgments.
Solaris supplies gas-turbine fleets that power customers' sites directly. For AI data centres waiting years for a grid connection, earlier access to electricity is the bottleneck it helps solve.
Why it deserves attention
Solaris raised its third-quarter adjusted EBITDA forecast to $110–130 million, and its fourth-quarter forecast to $145–180 million. Expanded long-term contracts are part of the stronger outlook. EBITDA is an earnings measure before interest, tax, depreciation and amortisation; it is not cash flow. These are company forecasts, not delivered results.
A director also bought about $501,000 of shares in the open market. The filing records transaction code P, a purchase. Our review covered the full 13 June–11 September insider-filing record and found no open-market sales within that window. This additional evidence raised our score from 7 to 8 out of 10. A is our strongest evidence group; it measures business evidence, not today's share price.
What tempers the case
Financing the expansion is costly. The research records share-count growth of 54% on one source and 88% on another—a disagreement, not an averaged estimate. It also records approximately $344 million of cash against $1.62 billion of debt, plus a $226 million shelf registration allowing additional issuance; that is capacity to raise capital, not evidence the issuance has occurred.
The purchase follows roughly $156 million of insider sales in May, about 310 times its size. Those sales fall about four months before this review, outside the ninety-day window. Both the purchase and the earlier selling matter.
The price has moved ahead. At the 10 September close of $67.67, the stock was up about 28% in four sessions and above its 50-, 100- and 200-day averages. The earlier pullback advantage had gone. A stronger research score does not make that starting price more attractive.
What we're watching next
Solaris's next quarterly results: does adjusted EBITDA meet the raised $110–130 million third-quarter forecast, and how is the expansion being funded? The existing research estimates early November; the reporting date is not confirmed.
The case would weaken if the expected operating improvement failed to arrive or financing consumed more of the benefit to existing shareholders. We will distinguish those business developments from movements in the share price.
Our earlier record
Previously on Solaris: 14 August — placed in the A group at a $58.60 reference. That placement corrected an earlier scoring error; it was not prompted by new company news. The reference was the last cited close, not a verified same-day close.
From that reference to $67.67 is about 15.5% raw price growth, not a result measured against the S&P 500. We did not predict the 28% four-session move. These are the record and limitations as of this 11 September example.
Elsewhere on the list
No other company changed score in this review. SEI remains in the A group rather than newly entering it.
Read the evidence
Director's purchase — SEC Form 4. Guidance report linked in the existing research.
Disclaimer
BottleneckAlpha publishes impersonal research, not personalised investment advice or instructions to trade. An A rating is not a promise of a positive return. Entry, exit and position size remain your decisions.