The video below is part of The Motley Fool's "11 O'Clock Stock" series. We're recommending a new stock every weekday at 11 a.m. ET on Fool.com over the next 50 weekdays. Better yet, we're investing $50,000 of our own money into the picks! To see a video of co-founder Tom Gardner explaining the series, click here. To see our original recommendation of PetMed Express (NYSE: PETS), click here.

Want a great way to profit from America's obsession with our four-legged friends? Motley Fool Pro analyst Bryan Hinmon says investors should be looking to PetMed Express. To see why, click on the video or read the summary below.

PetMed operates in the $45 billion pets market, but its core business is the $3.7 billion pet medication industry. PetMed has managed to dominate the veterinarian-controlled part of this industry; it's twice as large as its closest competitor and has boasted a return on equity greater than 30% for the past nine years.

Hinmon says one of PetMed's greatest strengths is its licenses across all 50 states to sell pet pharmaceuticals. This protects the company from threats such as Amazon.com (Nasdaq: AMZN) and Wal-Mart (NYSE: WMT), which focus on over-the-counter medication.

The stock is heavily shorted, but Hinmon believes threats are overblown. PetMed also has a loyal customer base; about 70% of its orders are reorders. Investors are underestimating the strength of PetMed's brand and competitive advantage.