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Solaris Energy Infrastructure market cap SEI

Share price times shares outstanding: what the whole company sells for, since 2017.

Today, Oct 23, 2026
$4.5B
Highest close in our data
$6.1B
Jun 2026

Solaris Energy Infrastructure is worth $4.5B at the close on Oct 23, 2026, at $58.74 a share.

That is up 31% over the last year and up 1197% over five years.

Its highest close in our data was $6.1B in Jun 2026.

Market cap over time

Open the interactive chart, with overlays and comparisons

Year by year

YearEnd of yearLowHighChange
2026 so far$4.5B$3.4B$6.1B+47%
2025$3.1B$1.1B$3.8B+79%
2024$1.7B$307.6M$1.7B+385%
2023$352.3M$349.9M$499.6M−24%
2022$462.8M$337.8M$655.6M+54%
2021$299.8M$294.3M$662.7M−19%
2020$369M$222.9M$666.7M−46%
2019$679.5M$506.3M$874.2M+22%
2018$558.5M$520.4M$1B−40%
2017$935.2M$462.6M$935.2Mn/a

Against its peers

Companies in Oil & Gas Equipment & Services nearest Solaris Energy Infrastructure's size, closest first, today.

CompanyMarket cap
SEISolaris Energy Infrastructure$4.5B
WHDCactus$5.1B
OIIOceaneering International$3.9B
WFRDWeatherford International$6.2B
NOVNOV$7B
LBRTLiberty Energy$2.5B
INVXInnovex International$2.1B
RESRPC$1.4B
HOSHornbeck Offshore Services$1B
FTITechnipFMC$27.4B
HALHalliburton$29.1B
Peer median$4.5B

What the market cap tells you

Share price times shares outstanding: what the whole company sells for today.

Size, not quality. Large caps move slower and are covered more. That is all it tells you.

More on Solaris Energy Infrastructure

Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.