On today’s episode of Free Lunch here at Zacks, Associate Stock Strategist Ben Rains takes a look at Apple’s AAPL coronavirus warning. We also dive into Tesla’s TSLA continued climb and Walmart’s WMT quarterly earnings results. The episode then ends with why Applied Materials, Inc. (AMAT) is a Zacks Rank #1 (Strong Buy) stock right now.All three major U.S. indexes fell Tuesday after Apple warned Wall Street that it wouldn’t hit its revenue targets for the current quarter. The iPhone giant cited coronavirus setbacks in China on both the production and demand side, which sent AAPL stock down, as well as chip firms such as Broadcom AVGO and Intel INTC.Despite the broader downturn, Tesla shares surged once again Tuesday. This continues the electric vehicle maker’s stellar over the last few months. And investors seem more than okay with the fact that Tesla recently announced plans to sell $2 billion worth of new stock, as CEO Elon Musk tries to ramp up production and expand internationally. On the earnings front, Walmart stock popped Tuesday morning even though its Q4 earnings fell short of estimates. WMT has expanded its e-commerce and delivery offerings alongside the likes of Target TGT and others in order to meet consumer demand in the Amazon AMZN age. The episode then ends with why Applied Materials is a Zacks Rank #1 (Strong Buy), within a highly-ranked semiconductor equipment industry that includes The Advanced Energy Industries, Inc. AEIS and Lam Research Corporation LRCX.Breakout Biotech Stocks with Triple-Digit Profit PotentialThe biotech sector is projected to surge beyond $775 billion by 2024 as scientists develop treatments for thousands of diseases. They’re also finding ways to edit the human genome to literally erase our vulnerability to these diseases.Zacks has just released Century of Biology: 7 Biotech Stocks to Buy Right Now to help investors profit from 7 stocks poised for outperformance. Our recent biotech recommendations have produced gains of +98%, +119% and +164% in as little as 1 month. The stocks in this report could perform even better.See these 7 breakthrough stocks now>>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Target Corporation (TGT): Free Stock Analysis Report Amazon.com, Inc. (AMZN): Free Stock Analysis Report Intel Corporation (INTC): Free Stock Analysis Report Apple Inc. (AAPL): Free Stock Analysis Report Walmart Inc. (WMT): Free Stock Analysis Report Lam Research Corporation (LRCX): Free Stock Analysis Report Tesla, Inc. (TSLA): Free Stock Analysis Report Advanced Energy Industries, Inc. (AEIS): Free Stock Analysis Report Broadcom Inc. (AVGO): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research