ONTO	The short sale volume percent (not short interest) for stock ticker ONTO is 53% on Jan 16, 2026. The short sale volume is 228,249. The total volume is 427,108. The short sale volume percent is down -5% compare to Jan 15, 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
2026-01-16	228,249	427,108	53%
2026-01-15	459,532	794,950	58%
2026-01-14	242,541	404,323	60%
2026-01-13	270,498	443,275	61%
2026-01-12	120,310	283,799	42%
2026-01-09	195,100	386,681	50%
2026-01-08	74,841	195,806	38%
2026-01-07	97,625	245,334	40%
2026-01-06	204,313	354,817	58%
2026-01-05	384,284	580,024	66%

Last 5 days short percent	56.14%
Last 10 days short percent	55.33%
Last 20 days short percent	55.67%
Last 50 days short percent	54.90%