An Investor Advisory Service subscriber wrote to us recently wondering why the "buy up to" prices of stocks changed from month to month. Here is the answer from our analyst team.

IAS subscriber Lynn Brown wrote to ask about our definition of "organic growth" and how we consider same-store sales in evaluating companies. Here is analyst Scott Horsburgh's response.

All Investor Advisory Service subscribers should be aware of a few changes in the publication schedule for the remainder of 2012.

In the September 2011 issue of the Investor Advisory Service we recommended eBay, the well-known online auction and e-commerce site. This large company had revenues in 2010 of $9.1 billion, and had grown earnings per share at an annualized rate of more than 31% since 2002. How have the company and its stock performed in the year since that time?

The October 2012 issue of the Investor Advisory Service is now available online for subscribers. To access the issue, please visit www.investoradvisoryservice.com. Print subscribers should expect to receive their issues by U.S. Mail within three business days.

Investor Advisory Service Editor-in-Chief Doug Gerlach recently did a Skype interview with WallStreetWeek.com to discuss the IAS's award-winning performance and some current stock ideas.

In the July 2011 issue of the Investor Advisory Service we recommended Coach, the maker of handbags and fashion accessories. This midsized company had revenues in 2010 of $4.1 billion, and had grown earnings per share at an annualized rate of more than 25% since 2002. How have the company and its stock performed in the year since that time?

In the October 2012 issue of Kiplinger's Personal Finance magazine, the Investor Advisory Service and its solid performance record was featured in an article entitled "Where to Get the Best Stock Research."

The Hulbert Financial Digesthas updated its long-term performance ratings for the newsletters it follows as of June 30, 2012. There is great news for Investor Advisory Service subscribers in the report!

In the August 2011 issue of the Investor Advisory Service, we recommended Align Technology, the maker of innovative orthodontic products. This small company had revenues in 2010 of $387 million, and had grown sales at an annualized rate of 25.0% since 2001. How have the company and its stock performed in the year since it was recommended?

We have just released a revised edition of How to Use the Investor Advisory Service, required reading for subscribers and those interested in IAS.

The July 2012 issue of the Investor Advisory Service is now available online for subscribers.