MKSI MKS Instruments Inc
Company Analysis
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🔴 MKS Instruments is trading 10.36% down today amid semiconductor-equipment weakness
MKS Instruments is trading at $193.71, down 10.36%, as semiconductor and semiconductor-equipment weakness weighs on shares. - Lam Research’s cautious forecast...
🔴 MKS Instruments is trading 7% down amid broad semiconductor and AI-stock pressure
MKS Instruments is trading at $199.49, down 7.44%, amid broader market risk-off sentiment. - No company-specific announcement on October 22 clearly explains...
🔴 MKS Instruments is trading 5% down in pre-market amid semiconductor-sector weakness after Lam Research results
MKS Instruments is trading at $205.11, down 5.09%, in pre-market amid semiconductor-sector weakness. - SOXX was down 3.64% pre-market, while broad-market...
🟢 MKS Instruments is trading 20.49% up in after-hours trading with no clear company-specific catalyst identified
MKS Instruments is trading at $260.37, up 20.49% after the October 21 regular-session close; no clear company-specific catalyst was identified. - The broader...
🔴 MKS Instruments is trading at 4.3% down as catalyst remains uncertain
MKS Instruments is trading 4.3% down at $206.05, with the catalyst uncertain. - No clear company-specific announcement on October 20 explains the decline. -...
MKS Inc. Announces $650 Million Sale of Ophir Optics Business to TTM Technologies
MKS Inc. announced it has entered into a definitive agreement to sell its Ophir® Optics business to TTM Technologies, Inc. in an all-cash transaction valued at...
🟢 MKS Instruments is trading 9.1% up in pre-market as semiconductor stocks rebound
MKS Instruments is trading at $234.37, up +9.09%, in pre-market on October 19 as semiconductor stocks rebound. - The rebound follows a steep semiconductor...
🔴 MKS Instruments falls 4.0% — Semiconductor Stocks Extend Losing Streak on Rate-Hike Fears and New China Export Curbs
With Chips / semis (SOXX) down 2.7%, this looks like a sector-led move rather than a company-specific surprise. The semiconductor sector, as measured by the...
🟢 MKS Instruments is trading 4.44% up in after-hours trading
MKS Instruments is trading 4.44% up at $238.66 in after-hours trading, with no clear company-specific catalyst identified. - The price compares with the...
🔴 MKS Instruments is trading 7% down today amid a broader semiconductor selloff and AI-funding concerns
MKS Instruments is trading at $220.37, down 6.97%, as its decline appears tied to a broader semiconductor selloff. - No company-specific catalyst surfaced in...
🔴 MKS Instruments falls 4.1% — Semiconductor Stocks Decline on Macroeconomic Headwinds
With Chips / semis (SOXX) down 2.7%, this looks like a sector-led move rather than a company-specific surprise. The semiconductor sector is experiencing a...
🔴 MKS Instruments falls 4.1% — Semiconductor Stocks Fall on China Competition Fears and AI Concerns
With Chips / semis (SOXX) down 2.5%, this looks like a sector-led move rather than a company-specific surprise. The semiconductor sector is experiencing a...
🔴 MKS Instruments falls 4.0% — Semiconductor Stocks Fall on Memory Chip Weakness
With Chips / semis (SOXX) down 2.7%, this looks like a sector-led move rather than a company-specific surprise. Semiconductor stocks are trading lower,...
🔴 MKS Instruments falls 4.4% — Semiconductor Stocks Fall on Macro-Economic Concerns
With Chips / semis (SOXX) down 2.5%, this looks like a sector-led move rather than a company-specific surprise. The semiconductor sector experienced a...
🔴 MKS Instruments is trading 4.1% down today as Treasury yields rose and equities fell
MKS Instruments is trading at $269.90, down 4.09%, amid broader equity weakness and rising Treasury yields. - No clear company-specific announcement explaining...
🟢 MKS Instruments is trading 4.9% up in pre-market amid semiconductor-sector optimism
MKS Instruments is trading $294.27, up 4.91%, with a market update attributing the pre-market move to semiconductor-sector optimism. - The price is versus the...
🟢 MKS Instruments is trading 4.46% up today amid broader semiconductor strength
MKS Instruments is trading 4.46% higher at $283.35 on October 2, 2026, apparently tracking semiconductor strength; no fresh company-specific catalyst was...
🟢 MKS Instruments is trading 6% up in pre-market amid semiconductor-sector optimism, with no MKS-specific catalyst confirmed
MKS Instruments is trading 5.95% higher at $287.37 in pre-market, with semiconductor-sector optimism a possible backdrop but no confirmed company-specific...
🟢 MKS Instruments is trading 16.3% up in after-hours trading — no confirmed catalyst identified
MKS Instruments is trading 16.29% up at $315.42 in after-hours trading, with no confirmed catalyst identified. - It closed at $271.24 on October 1, 2026; the...
MKS Instruments joins FTSE All-World Index, attracting global fund demand
MKS Instruments Inc. joined the FTSE All-World Index in September 2026. This inclusion incorporates the company into a major global equity benchmark. The move...