what is a special maintenance requirement 
the same maintenance requirements are not uniformly applied to everyone and everything some securities can carry higher maintenance requirements because they are deemed riskier that s usually the case with more volatile or less liquid investments 5the bottom linea house maintenance requirement is the minimum equity an investor must hold in their margin account after making a purchase once a security is bought on margin the requirement kicks in regulation t demands that at least 25 of the total market value of the securities be in the account at all times however brokers tend to demand even more than that it s very important to pay attention to these requirements if you fall below them and don t act fast when prompted your broker could liquidate your investment positions to claw the money back 