24  2

 ,       ,  
-.

       ,  -   -
  $20      -    $20  .
 , -     $30   ,  - 
    $30  .     $20, -  
   .   , -      ,
      $30. ,      
$20         $30    -
,     - $25.

-      .
,           -
   $10  ;  ,     $15
($25 - $10)    -     $20   ,
     $10 ($20  $10)  ,  
    $20.   ,  ,   , 
-          -
  .  , -    - 
      4.

    -   ,  -
 ,     ,    -
  -.  ,       
.  ,        
,          
   $12  .         -
     $20       ,
, $16    - $20.

2.3.4     Cronn-   

-    (stop limit order)     , 
     ,   -
.   -        
-    .  -    -
      ,   -   -
 ,         .

   :    -  
     ,  - - $20    - $19.
 ,         
   $19         ,   
       $20  .  , 
   -       , 
- - $30,    - $31.  ,     -
        $31      
   ,           $30
 .

,    -    -
,   -   .     
 :         
     $12,  -    