Is zakat obligatory on the amount of 35,000 Saudi Riyals remaining from the sale of land that was purchased with a bank loan and then invested in stocks and lost, and how much is this zakat?

Zakat (definition) is obligatory on cash money if it reaches the nisab (definition) (minimum threshold) and a hawl (full lunar year) passes over it, whether it is for trade, savings, or to purchase a specific item, and regardless of whether its owner is in debt or exposed to loss. Thus, zakat is obligatory on the aforementioned amount at a rate of 2.5% after it reaches the nisab and a hawl has passed over it. However, if the mentioned money represents the value of shares after their decrease, then the matter refers to the detailed rulings on zakat for shares.