I have 3 players of RoF in my portfolio. The biggest is BMK and NOT.
The investment depends on your style. If you are a player buy NOT below 4.75 and sell over 5.2 on the next week and move to BMK after that. If you are just a long player buy 50% of BMK below .4 and 50% of SPQ below .10. If any of these two will be over the marked price by 100% of the stock below mentioned level.
This is just my IMO.