MKSI	The short sale volume percent (not short interest) for stock ticker MKSI is 48% on Jan 21, 2026. The short sale volume is 416,828. The total volume is 861,092. The short sale volume percent is up 5% compare to Jan 20, 2026.

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Insider Buying

The Volume and short volume are limited. It is not including all volumes from all Market.
Date	Short Volume	Total Volume	Percent
2026-01-21	416,828	861,092	48%
2026-01-20	345,462	804,976	43%
2026-01-16	239,749	665,570	36%
2026-01-15	455,062	886,134	51%
2026-01-14	160,416	330,569	49%
2026-01-13	265,169	417,565	64%
2026-01-12	161,217	271,443	59%
2026-01-09	153,623	260,770	59%
2026-01-08	135,579	232,671	58%
2026-01-07	137,969	269,753	51%

Last 5 days short percent	45.59%
Last 10 days short percent	49.42%
Last 20 days short percent	50.99%
Last 50 days short percent	49.05%

Related Stock Ticker
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2026-01-21	CGNX	249,936	474,656	53%
2026-01-21	COHU	408,769	881,890	46%
2026-01-21	ENTG	939,301	1,611,104	58%
2026-01-21	ESE	26,426	42,006	63%
2026-01-21	LRCX	1,976,108	4,157,332	48%
2026-01-21	ROP	112,032	558,947	20%
2026-01-21	XLK	1,935,570	4,823,581	40%