1)
An option trader could have established a
vertical call spread on QQQ by purchasing QQQ/October/55 for $6/share and
selling QQQ/October/60 for $4/share. QQQ stock is selling for $61/share.

a.
What is his investment?

b.
Calculate gain/loss for the following cases:

i.
The stock moves to $50

ii.
The stock moves to $80

c.
What is maximum potential profit?

d.
What is maximum potential loss?

e.
What is the risk/reward ratio?