Argan vs. MYR Group: Which Power Infrastructure Stock Is a Better Buy?

Argan is favored over MYR Group, supported by a Zacks Rank #1 versus MYRG's #2, rising fiscal 2027-28 EPS estimates to $13.56 and $17.43, and a power backlog exceeding 4.1 GW. MYR posted record Q2 2026 revenue of $1.08B, up 20% year over year, with C&I revenue up 42% to $558M and total backlog up 20% to $3.16B. Both contractors are positioned to benefit from data-center construction, electrification and grid modernization, but Argan's diversified Power, Industrial and Teledata growth opportunities give it the article's preferred-investment designation.

Analysis

The actionable distinction is not simply generation versus grid exposure; it is contract economics. AGX's large, concentrated combined-cycle projects can create sharp earnings upside when fixed-price execution is clean, but expose it to schedule, labor and equipment-cost overruns that can erase several quarters of profit. MYRG's more diversified utility and C&I mix should carry lower single-project volatility and a longer-duration rate-base-driven demand profile, albeit with less operating leverage to a near-term data-center power scramble.

AGX's estimate revisions may support a 1-3 month relative-performance catalyst, but its premium valuation already embeds unusually favorable project conversion. The key unpriced variable is whether new awards are secured at margins above legacy backlog rather than merely expanding revenue; watch gross-margin guidance, cash conversion and working-capital use at the next report. A failure to book incremental generation work over the next two quarters, or any material project-cost charge, would likely compress the premium multiple quickly.

For 6-18 months, the better structural bottleneck may be transmission interconnection rather than gas-generation EPC. That favors MYRG and utility-focused contractors such as PWR and MTZ: incremental generation and data-center load cannot monetize without substations, distribution upgrades and line capacity. The contrarian risk to the broad theme is that hyperscalers defer power-intensive campuses if AI returns disappoint; this would hit discretionary C&I work first, while regulated T&D spending remains comparatively resilient.

Key Decisions for Investors

• Initiate a 1-3 month tactical pair: long AGX / short MYRG in equal dollar amounts only on a pullback in AGX or following confirmed incremental award announcements. Target 10-15% relative upside from continued estimate revisions; exit if AGX reports margin pressure, negative free-cash-flow conversion, or misses new-award expectations.
• For a 6-18 month core exposure, prefer MYRG or PWR over pure generation EPC exposure. Scale into MYRG after earnings only if C&I backlog remains intact and T&D margins stabilize; regulated-grid demand provides downside protection if data-center construction moderates.
• Do not chase AGX solely on analyst-ranking momentum. Require evidence that fabrication-capacity expansion is filling with contracted, adequately priced work; absent disclosed utilization, project margin and capex details, treat the expansion as a watch item rather than incremental underwriting value.
• Monitor hyperscaler capex guidance from AMZN and GOOG and interconnection queue data over the next two earnings cycles. Any broad reduction in data-center capex would be a signal to reduce AGX first and shift exposure toward MYRG/PWR, where utility capital plans are less sensitive to a single end-market.