The RSI is a momentum indicator, which compares a stock’s strength on days when prices go up to its strength on days when prices go down. When compared to a stock’s price action, it can give traders a better sense of how a stock may perform in the short term. An asset is typically considered oversold when the RSI is below 30, according to Benzinga Pro.

• On Feb. 13, West Pharmaceutical Services reported a fourth-quarter adjusted EPS of $1.82, beating the consensus of $1.72. The designer and manufacturer of injectable pharmaceutical packaging and delivery systems reported sales of $748.8 million, beating the consensus of $740.47 million. The company's stock fell around 39% over the past month and has a 52-week low of $197.01.
• RSI Value: 21.2                          
• WST Price Action: Shares of West Pharmaceutical gained 2.6% to trade at $208.92 on Friday.
• Benzinga Pro's real-time newsfeed alerted to latest WST news.

• Amphastar Pharmaceuticals will release results for its fourth quarter results, after the market closes on Thursday, Feb. 27, and will hold a conference call to discuss its financial results at 2:00 p.m. Pacific Time. The company's stock fell around 13% over the past month and has a 52-week low of $30.34.
• RSI Value: 25.3
• AMPH Price Action: Shares of Amphastar Pharmaceuticals fell 0.8% to close at $120.92 on Wednesday.
• Benzinga Pro’s charting tool helped identify the trend in AMPH stock.