Shares of Kratos Defense & Security Solutions (KTOS) tumbled 8.81% in pre-market trading on Wednesday, following the company's third-quarter earnings report and a significant acquisition announcement. The sharp decline comes despite better-than-expected Q3 results, as investors focus on weaker-than-anticipated fourth-quarter guidance and digest news of a major acquisition.

Kratos reported impressive Q3 2025 results after market close on Tuesday, with revenue reaching $347.6 million, up 26% year-over-year and surpassing analyst estimates of $322.9 million. The company's adjusted earnings per share came in at $0.14, beating the consensus estimate of $0.12. However, Kratos' fourth-quarter revenue guidance of $320 million to $330 million fell short of Wall Street's expectations of $334.55 million, likely contributing to the stock's decline.

Adding to investor concerns, Kratos announced plans to acquire Israel-based Orbit Technologies Ltd for $356.3 million, which the company intends to fund with cash. While this move aligns with Kratos' expansion strategy, investors may be wary of the financial implications or potential integration challenges. The pre-market plunge suggests that market participants are reassessing the company's valuation in light of these developments, possibly viewing the acquisition as too costly or risky despite the strong quarterly performance. Additionally, with Kratos' stock having more than tripled year-to-date before this announcement, some investors may be taking profits, further pressuring the share price.