Key TakeawaysShares of Nucor declined more than 5% following the company’s Q3 2026 earnings forecast of $5.55 to $5.65 per diluted share, which missed analyst expectations of $5.99Peer steelmaker Steel Dynamics experienced a similar decline after projecting Q3 earnings of $5.34 to $5.38 per share, also below consensusQ3 outlook excludes two significant one-time benefits from the previous quarter: a $61 million valuation increase in Helion investment and approximately $130 million in raw material procurement creditsWarren Buffett’s Berkshire Hathaway trimmed its Nucor holdings in Q2 2026Market analysts interpret the guidance as cautious positioning, anticipating Q4 improvements from delayed pricing effects and strengthening steel market conditionsShares of Nucor stock tumbled over 5% during Friday’s trading session after the North Carolina-based steel producer issued third-quarter 2026 earnings guidance that fell short of analyst projections. The stock retreated to $255.16 in extended trading hours, a decline from its intraday peak of $268.08, yet still significantly above its yearly low of $131.32.Nucor Corporation, NUEManagement forecasted net earnings between $5.55 and $5.65 per diluted share for the quarter concluding October 3, 2026. Wall Street consensus had anticipated $5.99 per diluted share. This shortfall triggered the selloff, even though the projected results still mark a substantial improvement over the $2.63 per share reported in the comparable quarter of 2025. ππ¨π¦π§ ππ‘: $NUE Nucor Guides Q3 EPS to $5.55β$5.65, Above Q2 Earnings ππ²π ππΆπ΄π΅πΉπΆπ΄π΅ππ:β€ π‘ππ°πΌπΏ expects Q3 diluted EPS between $π±.π±π± and $π±.π²π±.β€ Q2 diluted EPS was $π±.π¬π°, with adjusted EPS of $π°.π΄π°.β€ Year-ago Q3 earnings wereβ¦— Hardik Shah (@AIStockSavvy) September 17, 2026Steel Dynamics experienced parallel pressure, declining 2.1% to $240.21 during premarket hours. The competitor issued Q3 guidance ranging from $5.34 to $5.38 per share, similarly falling below market expectations. Cleveland-Cliffs experienced a modest 0.2% decrease to $12.74.Absence of Previous Quarter’s Special BenefitsMuch of the market’s reaction centers on the absence of certain favorable items from Q3. During the second quarter, Nucor recorded a $61 million non-cash benefit from an increased valuation of its stake in fusion energy startup Helion, plus approximately $130 million in retroactive raw material procurement adjustments that reduced expenses. These items will not recur in the current quarter.Nucor’s raw materials division is anticipated to report reduced profitability in Q3 due to softer pricing dynamics and lower shipment volumes. This headwind persists despite sequential growth expectations for both the steel mills and steel products divisions.Steel Dynamics offered a more optimistic assessment of its primary operations. The company anticipates substantially higher profits from its steel operations segment on a sequential basis, powered by expanding metal margins, elevated average selling prices, and declining scrap input costs. The company also projects increased shipment activity.Steel Market Fundamentals Remain StrongNotwithstanding the guidance disappointments, underlying steel market conditions remain robust. U.S. benchmark hot-rolled coil prices have surged nearly 30% year-to-date to $1,237 per ton as of Thursday’s close, representing a 49% increase over the trailing twelve-month period. This favorable pricing environment has been a substantial catalyst for both companies’ stock performance.Nucor shares have appreciated 63% year-to-date through Thursday’s market close. Steel Dynamics has posted gains of 45% during the identical timeframe.Wall Street analysts predominantly characterized the Q3 forecast as prudent rather than concerning. The fourth quarter is projected to capture benefits from pricing lag effects and increasingly tight steel supply-demand dynamics, potentially enhancing profit margins.Industry observers highlighted that tariff policy changes and potential steel price corrections represent ongoing risks for the sector.Berkshire Hathaway decreased its Nucor stake during the second quarter of 2026, a transaction that generated discussion among investors monitoring institutional positioning in steel sector equities.At its current level of $255.16, Nucor trades considerably below its 52-week peak of $280.11, yet the company’s core business fundamentals, especially the favorable steel pricing backdrop, remain supportive as the company enters the latter half of the year.The post Nucor (NUE) Stock Tumbles 5% Following Weak Third Quarter Earnings Forecast appeared first on Blockonomi.