When a stock is up more than 160% in a year, it can be easy to think you missed the boat. However, that's not always the case, and when a high-flying stock like pharma darling Regeneron (REGN +0.98%) pulls back, it can serve as a buying opportunity. In the following video, Brenton Flynn explains why investors shouldn't be shocked by the news that has this stock down about 5% today.
Should You Buy the Regeneron Sell-Off?
By Brenton Flynn – Jan 8, 2013 at 11:53AM
NASDAQ: REGN
Regeneron Pharmaceuticals
Market Cap
$68B
Today's Change
(0.98%) $6.30
Current Price
$650.49
Price as of November 6, 2025 at 2:35 PM ET