MK
MKSI
-4.7%⚪ No clear catalystMKS Inc. Common Stock · Technology
$223.50Vol 1.47M · 2.1× normalMkt cap −$0.74Blive · 2026-10-15 ET
What happened
Move
-4.7%
Price
$223.50
Volume
1.47M
2.1× normal
Market cap
$15.11B
−$0.74B today
Why it moved
No clear catalyst identified
No reliable news, earnings or analyst driver was found for this move. Likely flow-driven.
Verdict — was the move justified?
⚪ No clear catalyst
No reliable catalyst was identified for this move.
How unusual is this move
σ score
1.7σ
vs own 20d volatility
Percentile
87th
of 1267 daily moves
Avg daily move
±2.4%
own 5y average
vs sector
-4.9%
beyond sector median
What happened after similar moves
137 similar down moves in MKSI’s 5-year history:
After 5 days
+1.2%
57% higher
After 20 days
+0.7%
50% higher
Median of same-direction moves within ±35% magnitude band. Past patterns don’t predict outcomes — context, not signal.
Fundamental context
V 35G 37P 64H 45Q 85
Insider activity (90d): net selling $3.23M
Valuation context
P/E (TTM)
36.1
5y median 25.0
P/E percentile
65%
vs own 4y history
FCF yield
0.0%
Valuation sits near the middle of its own historical range (65th percentile).
Full fundamental analysis on PreMarketPrice
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