Why PLXS Stock dropped -3.86% Today — RQD Quant Desk Flash

Per the Roarable RQD rating, PLXS scores 55 out of 100, a letter grade of D+, with the verdict "Roarable Sell — Weak Fundamentals / Trim." The five pillars are: Fundamental Cash Engine 11/20 (ROIC 8.2%; FCF yield 2.67%), Whale 13F Flow 7/20 (institutional accumulation and options positioning), Insider Conviction 12/20 (SEC Form 4 and Congressional PTR cluster flow), Macro Regime Fit 7/20 (Beta 1.31; sector sensitivity), and Forensic Balance Sheet 18/20 (Altman Z 4.74; Piotroski F 7/9; Debt/Equity 0.48).

The clearest strength is the balance sheet, which carries the highest pillar score. A high Altman Z-Score, a Piotroski F-Score of 7 out of 9, and a Debt/Equity of 0.48 suggest financial staying power that is not in question on these figures. For a prospective investor, this reduces near-term solvency concern but does not by itself make the equity attractive.

The weaker pillars point to valuation and conviction issues. A 2.67% FCF yield and 8.2% ROIC sit below what the source frames as a strong cash engine, and the 33.3x trailing P/E and 22x EV/EBITDA imply that the market is pricing in substantial future earnings growth relative to current cash generation. Per the market data, the stock has moved -9.62% on the day and trades within a 52-week range of $132.03 to $307.06, showing high volatility consistent with the 1.31 beta. Institutional flow (7/20) and macro regime fit (7/20) are the lowest-scoring pillars, indicating limited sponsorship and above-market sensitivity to sector moves. Taken together, the rating frames PLXS as a balance-sheet-sound company whose current price relies on growth expectations that the cash-flow and ownership signals do not strongly confirm. Upside would depend on margin expansion and FCF recovery; the downside risk is multiple compression if cash generation does not keep pace with the valuation.

Per the SEC financials, revenue was broadly flat across the three periods, while net income rose from $111.8M in FY 2024 to $172.9M in FY 2025, and FCF fell from $341.3M to $154.0M over the same span. Per the market data, gross margin is 10.1%, operating margin 5%, and net margin 4.3%, with ROIC at 8.2%. The Altman Z-Score of 4.74 and Piotroski F-Score of 7/9 are reported in the RQD rating, and Debt/Equity is 0.48. Debt fell from $1182.3M in FY 2023 to $767.2M in FY 2025, supporting the balance-sheet assessment.

The news wire contains six items, all tagged to PLXS and all carrying a YELLOW signal light and "MARKET WIRE" impact label. They are generic market-coverage pieces: a Yahoo! Finance Canada market report, a Yahoo Finance piece titled as a momentum-stock question, a TradingView item on the day's decline, a Benzinga five-year return retrospective, a GuruFocus note describing the stock as down 3.5% while still overvalued, and a Stock Titan notice that the results call is set for 8:30 a.m. Oct. 29, the day after Plexus releases results. The scheduled earnings release and call are the one concrete catalyst in the source. Per the Butterfly Supply-Chain Graph, the supply chain is listed as NONE, there are no butterfly links, and no proprietary signals are recorded. The news items provide no fundamental detail beyond the earnings timing.

• What are Plexus's specific products, end markets, and customer concentration, given the source identifies only the sector and industry?
• What drove the decline in FCF from $341.3M in FY 2024 to $154.0M in FY 2025 while net income rose?
• What are the reported EPS figures, since the financials list EPS as N/A for every period?
• What were the results and guidance in the upcoming earnings release, and how did they compare to expectations?
• Who are the institutional and insider holders, and what is the direction of recent flow beyond the RQD pillar score?