Headline: IDEX Corp. Q4 Profit Surges, Shares Jump - IDEX Corp. (IDEX)

[Para 1: The Lead] IDEX Corp., a leading manufacturer of precision optical and optoelectronic components, reported a 25% increase in Q4 earnings to $1.2 billion, exceeding analyst expectations. The company's shares surged 10% in after-hours trading on the news, reflecting strong market confidence in its growth prospects. [Para 2-3: Supporting details & Context] IDEX attributed the profit spike to robust demand in its defense and aerospace sectors, as well as successful cost management strategies. Revenue for the quarter climbed 18% to $4.5 billion. CEO, Jane Doe, stated, "Our strategic focus on innovation and customer service has paid off, driving both top-line growth and profitability." The company expects Q1 earnings to be slightly higher than Q4, setting a positive tone for the year ahead.