Idacorp's Guidance Will Test Whether Infrastructure Spending Still Justifies the Premium

IDACORP, Inc. (NYSE: IDA) reports first-quarter 2026 earnings before the market opens on April 30, 2026, with analysts expecting modest year-over-year growth as the Idaho utility navigates robust customer expansion against rising capital costs. The central question: can IDA sustain its 18-year earnings growth streak while managing a $7.1 billion capital plan and maintaining affordability for customers in one of the nation's fastest-growing service territories? With the stock trading near recent highs and analysts increasingly bullish, tomorrow's results will test whether the company's infrastructure investments and regulatory strategy can deliver on elevated expectations.

Part 1: Earnings Preview

IDACORP is a Boise-based holding company whose principal subsidiary, Idaho Power Company, provides regulated electricity to over 660,000 customers across southern Idaho and eastern Oregon, with a generation mix anchored by low-cost hydropower. The company serves a 24,000-square-mile territory experiencing exceptional economic growth, with Idaho's GDP projected to expand 4.7% in 2026 and customer counts rising 2.3% year-over-year.

For the quarter ending March 2026, analysts expect IDA to report $1.12 per share, up from $1.10 in the same quarter last year—a modest 1.82% increase. The most recent quarter (Q4 2025, reported February 19, 2026) delivered $0.78 per share, beating estimates and capping a year in which IDA achieved record net income of $323.5 million and $5.90 diluted EPS. Revenue estimates for Q1 2026 stand at $434.40 million, essentially flat versus the prior-year period.

Three key themes define this earnings story:

Customer Growth vs. Infrastructure Costs: IDA added approximately 15,000 customers over the past year, a 2.3% expansion that directly boosts revenue. However, this growth demands massive capital investment—$1.3–$1.5 billion in 2026 alone—to support grid modernization, transmission buildouts like Boardman-to-Hemingway (B2H), and renewable integration. The tension between growth-driven revenue and depreciation/financing costs from infrastructure spending will be critical to watch.

Regulatory Execution and Rate Base Expansion: The company's 2024 Idaho Limited-Issue Rate Case delivered base rate increases effective January 1, 2025, providing a tailwind to Q1 results. With a projected 16.7% compound annual growth rate in rate base through 2030, IDA's ability to secure timely cost recovery while maintaining customer affordability remains paramount. Management's commentary on regulatory proceedings and the use of accumulated deferred investment tax credits (ADITC)—expected to be less than $30 million in 2026 versus $40.3 million in 2025—will signal confidence in the regulatory environment.

Weather, Hydro Generation, and Power Supply Costs: Milder temperatures in late 2025 reduced heating demand and pressured usage per customer, a trend that could persist into Q1 2026. Hydropower generation forecasts of 5.5–7.5 million MWh for 2026 (versus 7.0 million actual in 2025) introduce variability, as drought conditions or precipitation patterns directly impact the cost structure. Any update on power supply expenses and the effectiveness of power cost adjustment mechanisms will be closely scrutinized.

Analyst sentiment ahead of the release is constructive. UBS Group recently raised its price target from $134 to $142, maintaining a neutral stance, while BTIG Research reiterated a buy rating with a $156 target. Barclays lifted its target from $149 to $159 with an overweight rating, citing confidence in the company's capital plan and regulatory trajectory. The consensus reflects optimism that IDA can navigate near-term cost pressures while positioning for long-term growth in a high-demand service territory.

Part 2: Historical Earnings Performance

IDACORP has demonstrated consistent execution over the past eight quarters, beating consensus estimates in six of the last eight reports. The most recent quarter (Q4 2025) saw the company deliver $0.78 per share against a $0.74 estimate, a +5.41% surprise—the fourth consecutive beat. Prior to that, Q3 2025 produced $2.26 versus $2.23 expected (+1.35%), Q2 2025 matched estimates at $1.76, and Q1 2025 delivered $1.10 against a $1.03 consensus (+6.80%), marking the strongest surprise of the period.

The pattern reveals a company that has consistently met or exceeded expectations, with surprise magnitudes ranging from flat to nearly 7% upside. The two instances where IDA matched estimates (Q2 2025 and one earlier period) still represented solid execution rather than disappointments. This track record suggests management has maintained conservative guidance or effectively managed cost pressures, regulatory timing, and operational variables to deliver predictable results.

Heading into Q1 2026, the historical pattern supports cautious optimism. The company's ability to beat estimates in five of the last six quarters, including the comparable Q1 2025 period, indicates operational discipline and effective forecasting. However, the modest +1.82% year-over-year growth estimate for Q1 2026 reflects a more challenging comparison base and the ongoing tension between customer growth benefits and rising infrastructure costs.

Note: These figures reflect diluted GAAP earnings per share, reported before non-recurring items, and may differ from the non-GAAP figures used by some sources.

Part 2.1: Price Behavior Around Earnings

IDACORP typically reports earnings before the market opens, meaning Day 0 captures the first full trading session reaction to results, while Day +1 reflects follow-through momentum.

The historical data reveals moderate but consistent post-earnings volatility, with an average absolute Day 0 move of 1.93% and an average Day 0 range of 3.48%. Day +1 follow-through averages 1.36% with a 2.43% range, suggesting initial reactions often extend into the next session. The most recent report (February 19, 2026) saw a -2.43% Day 0 decline followed by a +1.15% Day +1 recovery, illustrating the stock's tendency to stabilize after initial volatility. Notably, the largest Day 0 move in the dataset was a +4.66% surge on August 1, 2024, indicating IDA can deliver outsized reactions when results significantly diverge from expectations. The October 30, 2025 report produced a -2.00% Day 0 move followed by a -1.60% Day +1 decline, demonstrating that negative surprises or guidance can trigger sustained selling pressure. Overall, investors should anticipate a 2–4% initial move with potential for follow-through in the same direction, particularly if results or commentary deviate materially from consensus.

Part 2.2: Options Market Expected Move

The options market is pricing a 3.77% expected move through the May 15, 2026 expiration, implying a range of $138.82 to $149.68. This sits modestly above the historical average Day 0 move of 1.93% but below the average Day 0 range of 3.48%, suggesting options traders are pricing in slightly elevated volatility relative to typical initial reactions but not expecting an outsized surprise. The expected move aligns more closely with the combined Day 0 and Day +1 average absolute moves (3.29%), indicating the market anticipates a multi-day reaction rather than a single-session resolution.

Part 3: What Analysts Are Saying

Analyst sentiment on IDACORP has improved heading into the Q1 2026 report, with the consensus recommendation standing at 4.00 (Buy) compared to 3.88 a month ago. The current breakdown shows 5 Strong Buys, 1 Moderate Buy, 2 Holds, and 1 Strong Sell among the 9 analysts covering the stock, with the Strong Buy count increasing from 4 a month ago. This shift reflects growing confidence in the company's ability to execute on its capital plan and benefit from robust service territory growth.

The average price target of $151.62 implies 5.1% upside from the current price of $144.25, with a range spanning from a low of $121.00 to a high of $166.00. The wide target range reflects differing views on the pace of rate base growth, regulatory outcomes, and the company's ability to manage rising capital costs while maintaining returns. The high-end target of $166.00 suggests some analysts see significant value in IDA's long-term infrastructure story and customer growth trajectory, while the $121.00 low-end target indicates concerns about near-term margin pressure or execution risk.

The recent upgrades and target increases from firms like Barclays (now $159, up from $149) and Mizuho ($148, up from $141) signal that sell-side analysts are increasingly comfortable with IDA's 2026 guidance range of $6.25–$6.45 per share and the company's ability to navigate a $1.3–$1.5 billion capital expenditure year. The consensus appears to view the current valuation as reasonable given the 16.7% projected rate base CAGR through 2030, though the presence of one Strong Sell rating suggests not all analysts are convinced the growth story justifies the premium to historical multiples.

Part 4: Technical Picture

IDACORP enters the earnings report with a Buy signal at 88%, unchanged from last week but down from 96% a month ago, indicating some recent technical softening despite the overall bullish posture. The stock currently trades at $144.25, positioned above its 50-day ($143.10), 100-day ($136.86), and 200-day ($132.42) moving averages, confirming an intact longer-term uptrend. However, the stock sits below its 5-day ($146.10), 10-day ($146.02), and 20-day ($145.84) moving averages, suggesting near-term consolidation or a minor pullback from recent highs.

Timeframe Analysis:

• Short-term (50% Buy): Neutral-to-positive signal reflects recent consolidation after the stock approached the $149.73 52-week high, indicating near-term momentum has cooled but remains constructive
• Medium-term (100% Buy): Strong buy signal confirms the intermediate trend remains firmly positive, supported by the stock's position above all major moving averages beyond the 20-day
• Long-term (100% Buy): Unambiguous bullish signal underscores the durability of the multi-month uptrend, with the stock up nearly 9% from its 200-day moving average

Strong but Weakening trend characteristics suggest IDA retains a solid technical foundation heading into earnings, but recent momentum has decelerated, leaving the stock vulnerable to a pullback if results or guidance disappoint.

Key technical levels to watch include immediate resistance at the 5-day moving average of $146.10 and the 52-week high of $149.73, with support at the 50-day moving average of $143.10. A beat-and-raise scenario could propel the stock through near-term resistance toward the $150–$152 zone implied by the analyst price target, while a miss or cautious guidance could test the 50-day support. The overall setup is cautiously supportive—the longer-term trend remains intact, but the recent pullback from short-term moving averages suggests the market is waiting for confirmation from earnings before resuming the advance. The 3.77% options-implied move aligns with the stock's historical volatility, indicating traders are pricing in a meaningful but not extreme reaction.