Why MKSI Stock dropped -6.54% Today — RQD Quant Desk Flash

Per the Roarable RQD rating, MKSI scores 48 out of 100, grading D with the verdict "Roarable Sell — Underperform / Distribution Warning." The five pillars are: Fundamental Cash Engine 12/20 (ROIC 8.6%; FCF yield 3.4%); Whale 13F Flow 5/20 (institutional accumulation and options positioning); Insider Conviction 12/20 (SEC Form 4 and Congressional PTR cluster flow); Macro Regime Fit 5/20 (Beta 1; sector sensitivity); and Forensic Balance Sheet 14/20 (Altman Z 2.42; Piotroski F 9/9; Debt/Equity 0.94).

For a prospective investor, the upside case rests mainly on the forensic balance sheet and the cash engine: the Piotroski F-Score of 9/9 and Altman Z of 2.42 point to financial health, and the FCF yield of 3.4% indicates cash generation. The valuation tradeoff is significant: per the SEC financials and market data, P/E (TTM) is 49.5 and EV/EBITDA is 25.6, which leaves limited room for error if growth or cash flow disappoints. The weakest pillars, Whale 13F Flow (5/20) and Macro Regime Fit (5/20), indicate weak institutional accumulation signals and sensitivity to sector and market conditions. The stock has also traded between $134.74 and $447.62 over 52 weeks, illustrating high volatility in its price history. These are analytical observations, not personalized financial advice.

MKS Inc. (MKSI) is a NASDAQ-listed issuer in the Industrials sector, operating in the Industrial Machinery/Components industry, per the company profile. Beyond the sector and industry classification, the source data does not describe its specific products, customers, or revenue model. Reported gross margin is 46.7%, operating margin 13.4%, and net margin 7.5%, per the market data.

Per the SEC financials, revenue rose from $3586.0M in FY 2024 to $3931.0M in FY 2025, and net income improved from $190.0M to $295.0M, while FY 2023 showed a net loss of $-1841.0M. Free cash flow grew from $410.0M to $497.0M across those two years. Per the market data, ROIC is 8.6%, and the forensic balance sheet metrics are Altman Z 2.42, Piotroski F 9/9, and Debt/Equity 0.94. Debt declined from $2820.6M to $2734.7M between FY 2024 and FY 2025, with cash of $418.0M at FY 2025.

The news wire includes six items, all related to MKSI. Five are marked YELLOW under "MARKET WIRE": Yahoo Finance Singapore, Yahoo! Finance Canada, Simply Wall St, Seeking Alpha ("MKS Inc.: Down 50%, Trading At Interesting Levels"), and Benzinga. One item is marked RED under "RISK WATCH": GuruFocus ("MKS Inc (MKSI) Shares Fall 6.0% -- GF Value Says Still Overvalued"). The Seeking Alpha and GuruFocus headlines reference a 50% decline and a 6.0% share drop, respectively, which are the only price-move references in the wire. Per the market data, the session change was -0.95%. The Butterfly Supply-Chain Graph reports no supply-chain links and no proprietary signals.

• What specific products, end markets, and customers drive MKSI's revenue, given that the source data gives only the sector and industry classification?
• What is the cause of the FY 2023 net loss of $-1841.0M and operating loss of $-1554.0M, and was it non-recurring?
• Why are EPS values reported as N/A for all periods, and how does that reconcile with the EPS (TTM) of 4.36?
• What are the cash balance and free cash flow figures for FY 2023, which are reported as N/A and $156.0M respectively?
• What institutional, insider, or analyst positioning exists, given that the holders and analyst data sections are empty?