Page Comparison

...

if(in_array($symbol, array('AA','BAC','C','MSFT','QQQ'))) {
   return bcmul($quantity, '0.001');
   } else return bcmul($quantity, '0.0015');

Different rate for Select Symbols (Fee Rules)

symbol=AA,BAC,C,MSFT,QQQ => 0.001
=> 0.0015

$1.50 fee Per Symbol per side, plus 0.00005 per share  (Per Symbol type)

$sellSide = 1.50 + ($quantitySold * 0.00005);
$buySide = 1.50 + ($quantityBought * 0.00005);
return ($quantityBought > 0 ? $buySide : 0) + ($quantitySold > 0 ? $sellSide : 0);

Tiered Plans

 Important: currently the $monthlyVolume variable in the formulas below includes volume across ALL types of securities (e.g. equities, options and futures volume would be combined).  This means that the formula will probably not function as intended if more than one type of security is traded in an account.

...