https://blog.binomo-investbroker.com/hi/glossary/%e0%a4%a8%e0%a5%80%e0%a4%9a%e0%a5%87-%e0%a4%af%e0%a4%be-down-%e0%a4%9f%e0%a5%8d%e0%a4%b0%e0%a5%87%e0%a4%a1/