CERT	The short sale volume percent (not short interest) for stock ticker CERT is 45% on Jan 07, 2026. The short sale volume is 337,114. The total volume is 744,416. The short sale volume percent is down -20% compare to Jan 06, 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
2026-01-07	337,114	744,416	45%
2026-01-06	838,935	1,289,562	65%
2026-01-05	444,465	957,851	46%
2026-01-02	317,047	475,555	67%
2025-12-31	403,742	520,969	77%
2025-12-30	287,635	482,644	60%
2025-12-29	289,467	631,296	46%
2025-12-26	282,727	503,273	56%
2025-12-24	248,205	307,106	81%
2025-12-23	210,060	400,624	52%

Last 5 days short percent	58.70%
Last 10 days short percent	57.96%
Last 20 days short percent	57.36%
Last 50 days short percent	50.46%