I'm looking for First Majestic to hit $100 per share once silver hits 100 an ounce. You'll be fine buying anywhere in these levels. Today AG is down 5%, probably not a bad time to buy. We are entering the strong season for metals, AG might not pull back much.
My recommendation would be to buy an hold. We don't buy AG because of what silver is doing right now, we buy because of what AG is going to do once silver rockets. The only downside I can think of is AG getting dragged down if the general stock market drops. I'm not a financial advisor, I just play one on the internet.