Calls give the holder the right, but not the obligation, to buy a stock if it reaches a certain strike price by the expiration date. On or before this day investors will have already had to decide what to do which their expiring position. Then, determine which specific option would be the most appropriate.
What is an 'Expiration Date (Derivatives)'
Placebo group: The other group took dummy pills (placebo). Both groups also went on a high-fiber, low calorie diet. These were the results of the 12 week study, which was published in The Journal of The American Medical Association (a highly respected scientific journal): Heymsfield, et al. 1998 As you can see, both groups lost weight. But the group taking Garcinia Cambogia extract actually lost less weight (3.