Which is better, MGY or SEI?

On the Buffett-Fit framework, Solaris Energy Infrastructure, Inc. (SEI) currently grades higher than MGY — 52/100 (D grade) vs 68/100 (C). That said, "better" depends on which framework you trust — MGY wins on Warren Buffett, Charlie Munger, and Terry Smith; SEI wins on Benjamin Graham, Philip Fisher, Peter Lynch, and Joel Greenblatt. The full pillar breakdown is on this page.

Should I buy MGY or SEI?

This page is an educational comparison, not investment advice. Both MGY and SEI are graded against the same Buffett 5-pillar framework (moat, earnings durability, management quality, financial health, valuation) plus six other documented investor frameworks. Read the side-by-side breakdown to see which one matches the criteria you care about most — and always do your own research before making any investment decision.

Is MGY better than SEI for value investing?

On the Buffett-style value-investing framework, SEI currently grades higher — 68/100 vs 52/100, a 16-point gap. The gap is driven by which pillars each stock passes; the table on this page shows moat, durability, management, financial health, and valuation side-by-side.

What's the difference between MGY and SEI on Warren Buffett's framework?

Both stocks are evaluated on the same five pillars: economic moat (durable competitive advantage), earnings durability (consistent profitability), management quality (capital allocation), financial health (conservative balance sheet), and valuation (margin of safety). MGY currently scores 68/100 (C grade); SEI scores 52/100 (D grade). The "Where each wins" section on this page breaks down which pillar each stock dominates.

Which has the stronger moat, MGY or SEI?

Moat strength is one of the five pillars in the Buffett-Fit score on this page. MGY and SEI are each scored on ROIC sustainability, gross-margin durability, and qualitative signals like brand strength, switching costs, network effects, and regulatory barriers. The pillar breakdown on this page shows the moat sub-score side-by-side so you can see which one has the more durable competitive advantage.

Which is more undervalued, MGY or SEI?

Valuation is one of the five Buffett-Fit pillars on this page. Both stocks are scored on owner-earnings yield, price-to-intrinsic-value vs the underlying compounding rate, and the margin of safety relative to a conservative DCF. The valuation sub-score in the table below tells you which one currently trades at a more attractive price relative to its underlying business quality.

Are MGY and SEI both Energy stocks?

Yes — both Magnolia Oil & Gas Corporation (MGY) and Solaris Energy Infrastructure, Inc. (SEI) operate in the Energy sector. That makes this a direct sector-peer comparison, which is the apples-to-apples way to use the Buffett-Fit framework: the score weighs each stock against its sector's specific quality and valuation benchmarks (sector-relative bonus), so the cross-stock comparison isn't distorted by inter-sector base-rate differences.

Is this MGY vs SEI comparison investment advice?

No. This page is an educational pattern-match against documented public frameworks (Buffett, Graham, Fisher, Lynch, Greenblatt, Munger, Smith), not personalised investment advice. The scores reflect how closely each stock matches each framework's documented criteria — they are not buy/hold/sell recommendations. Always do your own research and consult a licensed financial adviser for personalised advice.

Stock comparison

Magnolia Oil & Gas

Solaris Energy Infrastructure

Scored across Buffett, Graham, Lynch and Greenblatt - plus a side-by-side metric table covering valuation, quality, growth and balance sheet.

MGY

Magnolia Oil & Gas

Market cap

$5.41B

Sector

Energy

SEI

Solaris Energy Infrastructure

Market cap

$5.33B

Sector

Energy

Overall winner

Solaris Energy Infrastructure SEI

Wins on the combined sum of fit scores across all four strategies. Per-strategy breakdown below.

Fit scores by strategy

Strategy	MGY	SEI	Winner
Warren Buffett	68C	52D	MGY
Benjamin Graham	59C	65D	SEI
Philip Fisher	52C	66C	SEI
Peter Lynch	29F	76C	SEI
Joel Greenblatt	36D	42D	SEI
Charlie Munger	65C	52D	MGY
Terry Smith	64C	42D	MGY

Side-by-side metrics

Metric	MGY	SEI
Market cap	$5.41B	$5.33B
P/E (TTM)	17.0x	84.2x
EV/EBIT	13.3x	49.0x
ROIC (TTM)	13.12%	4.34%
Gross margin	46.49%	34.0%
Net margin	24.4%	6.69%
Revenue CAGR 5y	5.02%	40.61%
EPS CAGR 5y	-7.4%	-
Debt / Equity	0.2x	2.1x
Dividend yield	2.1%	0.64%

Where each one wins

The metrics with the biggest gap between the two - sorted so the most decisive edges read first.

MGY leads on

Debt / Equity0.2xvs 2.1x+90%
P/E (TTM)17.0xvs 84.2x+80%
EV/EBIT13.3xvs 49.0x+73%
Net margin24.4%vs 6.69%+73%

SEI leads on

Revenue CAGR 5y40.61%vs 5.02%+88%

More like MGY

MGY vs TPL MGY vs USAC MGY vs KRP MGY vs COALINDIA.NS MGY vs NRP MGY vs BSM

More like SEI

SEI vs TPL SEI vs USAC SEI vs KRP SEI vs COALINDIA.NS SEI vs NRP SEI vs BSM

Read the full Buffett-Brain analysis for MGY Read the full Buffett-Brain analysis for SEI

Related on invest-like

Strongest Moat Highest ROIC Warren Buffett strategy Economic Moat

Key terms in this analysis

ROIC Free Cash Flow (FCF)Economic Moat P/E Ratio Margin of Safety Quality Score

Educational tool. Fit scores are deterministic projections from public financials onto each investor's published criteria - not personal recommendations or advice.

Stock comparison

Magnolia Oil & Gas

Solaris Energy Infrastructure

Scored across Buffett, Graham, Lynch and Greenblatt - plus a side-by-side metric table covering valuation, quality, growth and balance sheet.

MGY

Magnolia Oil & Gas

Market cap

$5.41B

Sector

Energy

SEI

Solaris Energy Infrastructure

Market cap

$5.33B

Sector

Energy

Overall winner

Solaris Energy Infrastructure SEI

Wins on the combined sum of fit scores across all four strategies. Per-strategy breakdown below.

Fit scores by strategy

Strategy	MGY	SEI	Winner
Warren Buffett	68C	52D	MGY
Benjamin Graham	59C	65D	SEI
Philip Fisher	52C	66C	SEI
Peter Lynch	29F	76C	SEI
Joel Greenblatt	36D	42D	SEI
Charlie Munger	65C	52D	MGY
Terry Smith	64C	42D	MGY

Side-by-side metrics

Metric	MGY	SEI
Market cap	$5.41B	$5.33B
P/E (TTM)	17.0x	84.2x
EV/EBIT	13.3x	49.0x
ROIC (TTM)	13.12%	4.34%
Gross margin	46.49%	34.0%
Net margin	24.4%	6.69%
Revenue CAGR 5y	5.02%	40.61%
EPS CAGR 5y	-7.4%	-
Debt / Equity	0.2x	2.1x
Dividend yield	2.1%	0.64%

Where each one wins

The metrics with the biggest gap between the two - sorted so the most decisive edges read first.

MGY leads on

Debt / Equity0.2xvs 2.1x+90%
P/E (TTM)17.0xvs 84.2x+80%
EV/EBIT13.3xvs 49.0x+73%
Net margin24.4%vs 6.69%+73%

SEI leads on

Revenue CAGR 5y40.61%vs 5.02%+88%

More like MGY

MGY vs TPL MGY vs USAC MGY vs KRP MGY vs COALINDIA.NS MGY vs NRP MGY vs BSM

More like SEI

SEI vs TPL SEI vs USAC SEI vs KRP SEI vs COALINDIA.NS SEI vs NRP SEI vs BSM

Read the full Buffett-Brain analysis for MGY Read the full Buffett-Brain analysis for SEI

Related on invest-like

Strongest Moat Highest ROIC Warren Buffett strategy Economic Moat

Key terms in this analysis

ROIC Free Cash Flow (FCF)Economic Moat P/E Ratio Margin of Safety Quality Score

Educational tool. Fit scores are deterministic projections from public financials onto each investor's published criteria - not personal recommendations or advice.