Cummins Inc. (CMI) — Q2 2026 Earnings Preview

1. Earnings Preview

Key Takeaway: Setup leans bullish — consensus has been revised up since the Q1 beat and management explicitly flagged a "strong Q2 ahead," but the bar is now meaningfully higher and Power Systems margin normalization (below Q1's record) is the single biggest swing factor.

Heading into Q2 2026, the bar for CMI is elevated but not unreasonable: consensus expects revenue of ~$9.31B (+7.8% YoY) and operating EPS of ~$7.20, both of which reflect the raised full-year guidance management issued on May 5. Management was unambiguous on the Q1 call that Q2 would be a step-up quarter — "a strong Q2 ahead" — driven by accelerating North America truck volumes (heavy-duty production ramping from ~250 to ~400 engines/day by end of June) and continued data center strength in Power Systems, where the 2026 full-year revenue guide was raised to +14%–19% YoY. Estimate revisions have been broadly stable-to-slightly-lower since the post-Q1 spike (Q2 EPS consensus moved from $7.39 on May 8 to $7.20 today), suggesting the street has modestly trimmed the initial enthusiasm — a mild cushion rather than a stretched bar. The stock is down ~4% since the Q1 print (vs. XLI roughly flat), implying the market has partially de-rated CMI despite the raised guidance, likely reflecting concerns about Power Systems margin normalization and the Caterpillar AI data-center downgrade overhang. The key wildcard is Power Systems EBITDA margin: Q1 hit a record ~29.5% aided by one-time tariff and cost recoveries that management explicitly said would not fully repeat — if Q2 comes in at the guided 25%–26% range or better, the print should be well-received; a miss there would be the primary downside risk.

2. KPIs & Consensus Expectations

Key Takeaway: Consensus sets a high but achievable bar on revenue (~$9.3B, +7.8% YoY) and operating EPS (~$7.20); the bigger swing factor is Power Systems revenue and margin, where Q1 set a record that management guided would moderate — any upside there would be the primary beat driver.

Table 1 — Current Quarter Snapshot (Q2 2026)

Sources: Visible Alpha Consensus and Actuals Data

Table 2 — Beat/Miss History (Last 8 Quarters)

Top KPI #1: Operating EPS (Diluted, Adjusted)

Top KPI #2: Power Systems Revenue

Pattern: CMI has beaten operating EPS consensus in every quarter shown, with surprise magnitudes consistently in the +10%–28% range — a remarkably consistent track record that reflects conservative guidance-setting. Power Systems revenue has beaten in 6 of 7 quarters, with the lone Q4 2025 miss driven by timing of international deliveries. The high beat frequency on EPS has likely contributed to elevated consensus expectations heading into Q2 2026.

Source: Visible Alpha Consensus and Actuals Data

3. Guidance & Commentary Evolution

Key Takeaway: Management materially raised all segment guidance on May 5 (Q1 earnings) and then raised 2030 long-term targets again at the May 21 Analyst Day — tone is the most confident it has been in two years, with no post-earnings guidance revisions needed as the original raise was already aggressive.

Management tone has been consistently confident since Q1: CEO Jennifer Rumsey stated the company is "in a stronger position today" and "well positioned going forward" at the May 21 Analyst Day, while CFO Mark Smith highlighted "significant opportunities ahead" across businesses and regions. Notably, management explicitly guided that Power Systems margins for the remainder of 2026 would be "strong, but a little below first quarter levels" due to the uneven nature of tariff recoveries and one-time cost items in Q1 — this is the key sequential headwind to watch in Q2.

4. Guidance vs. Estimate Revision Tracker

Key Takeaway: Estimates spiked sharply in the first week after Q1 earnings (EPS +5.3% in 5 days) and have since drifted modestly lower, suggesting the street initially over-reacted to the guidance raise and has since recalibrated — current consensus sits slightly below the post-print peak, representing a mild cushion rather than a stretched bar.

The revision trajectory tells a clear story: Q2 EPS estimates jumped from ~$6.47 pre-Q1 to $7.39 immediately post-Q1 (a +14% re-rate in one week), then drifted back to $7.20 as the street digested the Power Systems margin normalization caveat. FY 2026 EPS has been more stable, edging up slightly from $29.26 to $29.46, consistent with management’s raised full-year guidance. Power Systems revenue estimates have been essentially flat since the post-Q1 reset, suggesting consensus is comfortable with the +14%–19% FY guide. The mild downward drift in Q2 EPS from the post-print peak is a modest positive — the bar has come in slightly, reducing the risk of a consensus miss.

Source: Visible Alpha Consensus and Actuals Data

5. Stock Performance

Key Takeaway: CMI has underperformed both XLI and the S&P 500 since the Q1 print despite raised guidance — the stock is down ~3.9% vs. XLI +7.2% and SPY +5.5% since May 5 — driven by multiple compression (NTM EV/EBITDA contracted from ~13.7x to ~12.5x over 1 month) rather than estimate cuts, suggesting sentiment-driven de-rating tied to AI data center skepticism and Caterpillar’s downgrade overhang.

Since the Q1 2026 earnings print on May 5, CMI has been a notable underperformer relative to its industrial peers. The stock opened at $656.73 on May 5 (prior close), surged to $715.76 on May 6 on the earnings beat and guidance raise, then gave back all gains and more — trading at $648.85 as of August 4, a net decline of ~3.9% from the pre-earnings close. By contrast, XLI (Industrial Select Sector SPDR ETF) gained +7.2% and the S&P 500 gained +5.5% over the same period. The underperformance is concentrated in two episodes: (1) a sharp sell-off in mid-May following the Analyst Day on May 21 (stock fell from $716 to $639 in one week, possibly as investors sold the news after the long-term target raise), and (2) a second leg down in late July (stock fell from ~$665 to $606 on July 29) coinciding with Caterpillar’s downgrade by Baird citing AI data center pushback — a direct read-through risk for CMI’s Power Systems segment. The stock has since partially recovered to ~$649. Valuation has compressed: NTM EV/EBITDA contracted from ~13.7x (1 month ago) to ~12.5x today, while NTM P/E moved from ~21.5x to ~19.5x. The 12-month picture is still strongly positive (+76.5% price return, driven by both earnings growth and multiple expansion from ~10x to ~12.5x EV/EBITDA), but the near-term setup reflects a market that has grown more cautious on the durability of the data center demand narrative.

Key Events Since May 5, 2026:

• May 5, 2026: Q1 2026 earnings beat — stock surged from $656.73 to $715.76 (+9.0%) on the day following the print.
• May 21, 2026: Analyst Day — 2030 targets raised (revenue $45B–$50B, EBITDA >20%); stock sold off from $716 to $639 over the following week, likely a "sell the news" reaction.
• July 29, 2026: Caterpillar downgraded by Baird citing AI data center pushback and NY moratorium on data center construction — CMI fell sharply from ~$665 to $606 (-8.9%) as a direct read-through to Power Systems.
• Aug 3–4, 2026: Partial recovery to ~$649 ahead of Q2 earnings; Caterpillar also reporting Q2 today.

Valuation Context: NTM EV/EBITDA of 12.5x is below the 1-month average of ~13.7x and the 3-month average of ~14.7x, suggesting the stock has de-rated meaningfully. The 12-month EPS-driven re-rating (+24.7% multiple expansion from 10.0x to 12.5x) has partially reversed in recent months. At current levels, the stock is pricing in a more cautious view on Power Systems margin sustainability.

Source: Stock Price Data (Yahoo Finance); Stock Performance Decomposition Data

6. Peer Commentary & Current-Quarter Read-Throughs

Key Takeaway: PCAR’s Q2 2026 earnings call is the most important read-through for CMI — it confirms the NA heavy-duty truck market is tracking the upper end of CMI’s 230,000–250,000 unit guide, EPA NOx clarification is a net positive for CMI’s engine launch timeline, and supplier constraints are emerging (a mixed signal). Eaton’s Q2 results confirm data center demand remains robust and accelerating, directly supporting CMI’s Power Systems outlook. AGCO’s commentary is a modest negative for CMI’s agricultural engine exposure but is not a primary driver.

Note on Scope: Only commentary from Q2 2026 earnings calls and post-Q1 2026 conferences is included below. Prior-quarter results commentary (e.g., PCAR Q1 2026 results discussion) has been excluded. All read-throughs are sourced from transcripts dated after May 5, 2026.

PACCAR (PCAR) — Q2 2026 Earnings Call (July 28, 2026)

Relevance to CMI: PCAR is CMI’s largest single engine customer for North American heavy-duty trucks. PCAR’s Q2 commentary is the most direct read-through available for CMI’s Engine segment.

Eaton (ETN) — Q2 2026 Earnings Call (July 31, 2026)

Relevance to CMI: Eaton is the most direct peer for CMI’s Power Systems segment (data center backup power, power generation). ETN’s Q2 results provide the most current read on data center demand trends, capacity constraints, and pricing dynamics in the power equipment market.

AGCO Corporation (AGCO) — Q2 2026 Earnings Call (July 30, 2026)

Relevance to CMI: AGCO is an agricultural equipment OEM that uses CMI engines in certain product lines. AGCO’s commentary provides a read-through for CMI’s agricultural engine exposure, which is a smaller but meaningful part of the Engine segment.

Overall Peer Read-Through Assessment: The peer commentary is overwhelmingly positive for CMI’s Q2 2026 setup. PCAR confirms the NA truck market is tracking the upper end of CMI’s guide, the EPA NOx clarification is a net positive for CMI’s engine launch timeline, and tariff headwinds are effectively neutralized. Eaton’s results directly counter the AI data center pushback narrative that drove CMI’s recent underperformance, with data center demand described as accelerating beyond expectations. AGCO’s weak agricultural commentary is a modest headwind but is already embedded in CMI’s guidance and represents a small portion of total revenue.

Sources: PCAR Q2 2026 Earnings Call Transcript (July 28, 2026); ETN Q2 2026 Earnings Call Transcript (July 31, 2026); AGCO Q2 2026 Earnings Call Transcript (July 30, 2026)

7. Material News & Developments

Key Takeaway: The most important development since Q1 earnings is the May 21 Analyst Day where CMI raised 2030 targets and announced a $450M Power Systems capacity investment — a structural positive. The most important near-term risk is the Caterpillar AI data center downgrade on July 29, which triggered a sector-wide sell-off and is the primary overhang heading into today’s print.

• May 5, 2026 — Q1 2026 Earnings Beat & Guidance Raise: CMI reported Q1 2026 results with operating EPS of $6.15 (vs. $5.57 consensus, +10.4% beat) and raised full-year revenue guidance to +8%–11% (from +3%–18%) and EBITDA margin to 17.75%–18.5%. Power Systems hit a record EBITDA margin. Stock surged ~9% on the day. Implication: Sets a high but achievable bar for Q2; management explicitly guided for a "strong Q2 ahead."
• May 14, 2026 — Annual Shareholder Meeting: Shareholders backed the board on key votes and rejected governance proposals. No material business impact. Implication: Governance stability; no activist pressure.
• May 21, 2026 — Analyst Day — 2030 Targets Raised: CMI raised 2030 revenue target to $45B–50B (from $43B–48B) and EBITDA margin target to >20% (from 17%–18%). Announced additional $450M investment to expand Power Systems capacity by 20GW to 55GW total by 2030. Data center revenue target raised to >$9B by 2030 (from $5B 2026 midpoint). Also disclosed NA heavy-duty engine production ramping from 250 to 400 engines/day by end of June 2026. Implication: Structurally positive for long-term thesis; stock sold off ~10% in the week following ("sell the news"), creating a potential entry point.
• June 11, 2026 — Caterpillar Dividend Increase: CAT boosted quarterly dividend by 7.9% to $1.63/share. Indirect read-through: CAT’s confidence in cash flows is consistent with strong industrial demand. Implication: Positive sector sentiment signal.
• July 28, 2026 — PCAR Q2 2026 Earnings (Key Read-Through): PCAR confirmed NA heavy-duty truck market tracking ~250,000 units for FY 2026 (upper end of CMI’s guide), Q3 deliveries ramping to ~42,000 units, and EPA NOx clarification extending timeline for 35mg engines with NCFs of $6,000–17,000/truck. PCAR explicitly named Cummins as a partner engine supplier for current-generation products. Implication: Directly positive for CMI’s Engine segment Q2 and H2 2026 outlook.
• July 29, 2026 — Caterpillar Downgraded by Baird (Key Risk Event): Baird downgraded CAT to Hold citing AI data center pushback and a New York moratorium on data center construction as examples of mounting regulatory risks to the AI-driven rally. CMI fell ~8.9% on the same day as a direct read-through to Power Systems. Implication: Primary near-term overhang; however, ETN’s July 31 results (data center demand accelerating) and CMI’s 95% behind-the-meter backup power positioning (nondiscretionary) partially counter this narrative.
• July 29, 2026 — NextEra/Brookfield $100B Nuclear Data Center Campus: NEE and Brookfield announced plans for a $100B nuclear-powered data center campus in Kentucky. Implication: Long-term positive for power demand broadly; nuclear-powered campuses still require backup power generation during outages, supporting CMI’s Power Systems demand.
• July 30–31, 2026 — ETN Q2 2026 Earnings (Key Read-Through): Eaton reported record Q2 revenue of $8.5B (+21% total, +14% organic), raised full-year organic growth guide to +12% at midpoint, and described data center demand as growing "even faster than we estimated." US data center backlog at 307GW (15 years of backlog). Implication: Directly counters the Caterpillar downgrade narrative; strongly positive for CMI’s Power Systems Q2 and FY 2026 outlook.
• August 4, 2026 — Caterpillar Q2 2026 Earnings (Same Day): CAT is also reporting Q2 2026 results today. CAT’s commentary on data center demand, mining, and construction will be a real-time read-through for CMI. Implication: CAT results could move CMI in either direction before/after CMI’s own call at 10:00 AM ET.

8. Insider Transaction Activity

Key Takeaway: All insider activity since Q1 earnings consists of open-market sales by multiple executives in the days immediately following the Q1 print — a cluster of post-earnings sales that is typical of executives monetizing vested equity after a strong quarter and stock surge, but the absence of any open-market buys and the breadth of sellers (6 different insiders) is worth noting. No 10b5-1 plan initiations were disclosed.

Assessment: The cluster of 8 sales across 6 executives in the 7 trading days following Q1 earnings (May 8–14) is consistent with a coordinated post-earnings window opening for insiders to monetize vested equity after a strong quarter and stock surge to ~$715. The most notable transaction is the 5,000-share sale by Jennifer Bush (Power Systems President) — the largest by share count among segment presidents — which could be read as the executive most familiar with Power Systems’ margin trajectory taking profits near the post-earnings high. However, all sales are discretionary (no 10b5-1 plan flags in the data), and the absence of any open-market buys since Q1 is a mild negative signal. No insider transactions were filed in June or July 2026, suggesting the selling was opportunistic rather than a sustained distribution.

Source: SEC Form 4 Filings Database (Insider Transaction Data)