Hello, I'm currently a beginner at options trading and so far I'm using investopedia to try out options before I commit real money. What I can't figure out is how premiums are determined. For example, I bought 10 May 62.50 calls (.HONEA) before the earnings report for HON, and it had upward momentum after the report, yet the premium prices stayed down for most of Friday's session when, somehow, the premiums snuck back up. I've tried to find information at the OIC/888options, but haven't been able to find any information similar to this scenario. Any thoughts or ideas would be most appreciated. Thank you for your time.