EFXT vs KGS: Which Is the Better Buy in 2026?
Last updated August 2026
Short answer
KGS is the larger of the two ($5.86B market cap): the incumbent the market prices for continued execution (18.83x forward earnings, beta 0.91). EFXT is the smaller challenger ($2.62B), cheaper on forward earnings (11.32x): more room to run, but more to prove. The real question is which set of drivers you believe, and whether owning one (or both) leaves you over-concentrated.
EFXT vs KGS: the tie-breaker metrics
Same yardstick, side by side (as of August 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.
| Metric | EFXT | KGS | What it tells you |
|---|---|---|---|
| Market cap | $2.62B | $5.86B | Size. The larger name is the incumbent; the smaller has more room to grow and more to prove. |
| Forward P/E | 11.32 | 18.83 | Valuation on next year's expected earnings, the same yardstick for both. Lower is cheaper for that growth; higher means the market is paying up. |
| Trailing P/E | 48.68 | 76.39 | Valuation on the last 12 months. A big drop from trailing to forward means the market expects earnings to jump, so more growth is already in the price. |
| Beta | 2.08 | 0.91 | Volatility vs the market. Above 1 swings harder than the index; below 1 is steadier. Higher beta means bigger drawdowns to hold through. |
| Price vs 52-week range | 61% of range | 59% of range | Where today's price sits between the 52-week low and high. Near the high is momentum with less margin of safety; near the low is out of favor or a discount, depending on why. |
| Price / book | 2.24 | 4.28 | How much you pay over book value. Very high can signal an asset-light, high-return business or a rich price. |
Reading it: EFXT is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.
Before you buy: how EFXT and KGS affect your concentration
The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. EFXT and KGS share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.
This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined EFXT and KGS exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.
What does Enerflex (EFXT) do?
Enerflex Ltd. is a Calgary-based provider of natural gas compression, processing and treating infrastructure, listed on the NYSE as EFXT and on the Toronto Stock Exchange as EFX. It reports in three geographic segments (North America, Latin America and the Eastern Hemisphere) and operates three product lines. Engineered Systems designs and fabricates gas-handling equipment to customer order and books revenue as projects are executed. Energy Infrastructure owns and operates compression and processing assets under multi-year contracts and collects a fee. After-Market Services maintains the installed base. In the second quarter of 2026, Energy Infrastructure and After-Market Services together produced about 69% of consolidated gross margin before depreciation, and the company puts recurring sources at roughly 65% of adjusted gross margin through a full cycle. Enerflex is a Canadian issuer but reports in US dollars, and it declares its dividend in Canadian dollars, so a US shareholder holds a USD-reporting company that pays a CAD distribution.
What does Kodiak Gas Services (KGS) do?
Kodiak Gas Services, Inc. owns and operates contract compression infrastructure for oil and gas producers and midstream operators, primarily in the Permian Basin and Eagle Ford. Customers pay monthly fees for Kodiak to install, run, and maintain large-horsepower compression packages that push associated natural gas through gathering systems, so revenue tracks installed horsepower under contract rather than the commodity price directly. The 2024 all-equity acquisition of CSI Compressco (~$854 million) created the industry's largest fleet and added gas treating, cooling, and aftermarket services, and the fleet stood at ~4.39 million revenue-generating horsepower at ~98% utilization in Q1 2026.
EFXT vs KGS: how do they differ?
Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.
- EFXT drivers: The deleveraging cycle is finished; Recurring margin from infrastructure and services.
- KGS drivers: Distributed power for data centers; Contracted compression as the cash engine.
Which fits which kind of investor
A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: Engineered Systems bookings depend on customer capital budgets, which are driven by natural gas prices and LNG project timing, so a 1.6x book-to-bill quarter tells you nothing about the next one and revenue has already been declining year over year. For KGS, the power expansion is capital intensive and unproven at scale for Kodiak: growth capex is guided at ~$645 million to ~$775 million for 2026, and turbine and engine delivery slots stretch into 2029, so contracted megawatts and actual cash flow can arrive years apart.
EFXT or KGS: which should you pick?
Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick EFXT if you believe its drivers more; KGS if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the EFXT and KGS guides.
EFXT vs KGS: the full fundamentals
EFXT. Figures are approximate, tied to the asOf date, and reported in US dollars even though Enerflex is a Canadian issuer whose quarterly dividend of C$0.0425 is declared in Canadian dollars. The multiple looks undemanding against annualized EBITDA, but two things complicate it: earnings are still falling year over year, and the pending sale of most Asia Pacific operations to INNIO will change the revenue and EBITDA base before the year is out. Return on capital employed was 15.4% in Q2 2026 after a record 17.3% in Q1, which is a more useful read on this business than the P/E because so much of the asset base is owned, depreciating infrastructure.
KGS. The headline P/E is misleading in both directions: net income of ~$66 million on ~$1.32 billion of revenue reflects heavy depreciation on a compression fleet and interest on acquisition debt, while adjusted EBITDA of ~$820 million to ~$860 million and discretionary cash flow of ~$520 million to ~$570 million are the numbers management and most analysts anchor on. Fleet utilization at ~98% and a ~70.6% compression gross margin show the base business running near capacity. Q2 2026 results are due August 6, 2026, and the market's focus is on power contract announcements rather than the compression line.
Headline figures (approximate, August 2026): EFXT shows revenue (ttm) ~$2.57 billion (Q2 2026 was ~$582 million, down from ~$615 million a year earlier), adjusted ebitda ~$128 million in Q2 2026, ~$265 million across the first half of 2026, net income (q2 2026) ~$30 million, or ~$0.25 per diluted share (versus ~$60 million and ~$0.49 a year earlier), engineered systems backlog ~$1.45 billion at June 30, 2026, on ~$488 million of quarterly bookings (1.6x book-to-bill); KGS shows revenue (ttm) ~$1.32B, q1 2026 revenue ~$346M (+5% YoY), q1 2026 adjusted ebitda ~$190M (~55% margin), 2026 adjusted ebitda guidance ~$820M-$860M.
The bottom line: EFXT vs KGS
EFXT and KGS are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined EFXT and KGS exposure against your real portfolio. It is not an investment adviser.
Wondering how EFXT or KGS fits the portfolio you already own? Walnut is an AI investing app that connects your brokerage read-only and answers questions like that about your actual holdings: overlap, concentration, and how each position tracks the S&P 500. Compare the best AI portfolio analyzers or see the best AI investing apps in 2026.
Investing in Enerflex with AI
Connect the broker you already use and ask Walnut's AI how EFXT fits what you actually hold: whether you own it already through a fund, what it would do to your concentration, and how it has tracked the S&P 500. Read-only by default, and you approve anything before it reaches your broker.
FAQ
What is the difference between EFXT and KGS?
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Enerflex Ltd. Kodiak Gas Services, Inc. They show up together because they share investment themes, but they are different businesses, so the better fit depends on which thesis you are expressing.
Is EFXT or KGS the better stock?
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Neither is universally better. KGS is the larger incumbent; EFXT is the smaller challenger and looks cheaper on forward earnings. Walnut is informational, not investment advice. Compare what each does, the tie-breaker metrics above, and the risks, then decide which fits your thesis and what you already own.
Which is cheaper, EFXT or KGS?
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On forward P/E (as of August 2026), EFXT trades at 11.32x and KGS at 18.83x, so EFXT is the cheaper of the two on next year's expected earnings. A lower multiple is not automatically the better buy: a richer valuation can be justified by faster growth, and a lower one can reflect real risk. Weigh the multiple against how fast each business is compounding.
Should you own both EFXT and KGS?
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Because they share themes, owning both concentrates you in that theme. That can be intentional (a focused bet) or accidental (less diversification than it looks). Walnut can show your combined exposure across both, and whether adding either over-concentrates you, before you buy.
What are the risks of EFXT vs KGS?
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EFXT: Engineered Systems bookings depend on customer capital budgets, which are driven by natural gas prices and LNG project timing, so a 1.6x book-to-bill quarter tells you nothing about the next one and revenue has already been declining year over year. Contract compression growth is cash out today against contracted cash in over years, so a fleet build funded into a softening rate environment would hurt returns well after the capex is committed. Geographic exposure carries real country risk: Latin America and Eastern Hemisphere operations bring currency, receivable-collection and contract-enforcement issues that a purely North American peer does not face. The APAC sale to INNIO is subject to regulatory approvals and has not closed, so the post-divestiture earnings base is still an estimate rather than a reported figure. Finally, this is a roughly $2.6 billion company whose shareholder base and dividend sit in Canadian dollars while it reports in US dollars, which means US holders take a currency mismatch on income and trade a US listing that is less liquid than the domestic compression peers. KGS: The power expansion is capital intensive and unproven at scale for Kodiak: growth capex is guided at ~$645 million to ~$775 million for 2026, and turbine and engine delivery slots stretch into 2029, so contracted megawatts and actual cash flow can arrive years apart. Leverage near 3.6x leaves less cushion than the balance sheet had before the buildout, and a reported P/E near 77 reflects how little of the ~55% adjusted EBITDA margin survives depreciation and interest. Data center power demand is currently a bidding war, and hyperscalers may prefer grid interconnects, utility contracts, or rival providers as those options free up. The compression base remains tied to Permian and Eagle Ford activity, so a sustained oil price decline would eventually slow horsepower additions even though existing contracts are sticky. The shares have roughly doubled off their 52-week low near ~$30, which means expectations for the power story are already embedded in the price.
Walnut is informational, not investment advice. This page is descriptive and not a recommendation to buy or sell EFXT or KGS; figures are approximate and dated (as of August 2026). Verify current data before investing.