Over 1500 companies are expected to report earnings this week.With the S&P 500 hitting new highs again, a lot of companies are also trading near new highs.How can you pick out just 5 great charts?But these five companies have must-see charts this week. Some are pandemic winners and others will be winners on the reopen.Two of them have perfect earnings surprise track records over the last few years. It’s not easy to beat every quarter, or nearly every quarter, for years.They were even doing it during a pandemic.Can they keep beating?5 Amazing Earnings Charts This Week1. YETI Holdings YETI hasn’t missed since it’s 2018 IPO. Even during a pandemic. Impressive. Over the last year, shares are up 97% and are near all-time highs. It trades with a forward P/E of 40, so it’s not cheap. Can it keep rallying?2. Wayfair W has beat 5 quarters in a row. It was a big pandemic winner last year but shares have been going nowhere in 2021. Shares are down 10% in the last 3 months. At 56x, is it now too expensive to handle?3. MasTec, Inc. MTZ hasn’t missed on earnings in 5 years. What an amazing track record. Shares soared to new 5-year highs in 2021 but have weakened off those highs, falling 7% in the last 3 months. It has an attractive valuation, with a forward P/E of just 18. With a big infrastructure package expected to pass, is MasTec a value stock?4. Square SQ has beat big 5 quarters in a row. Shares are up 99% in the last year and are up 9% in the last 3 months. Yet they haven’t yet broken out to another new high. At 164x forward earnings, does the valuation of this fintech company even matter?5. Shake Shack Inc. SHAK has a great earnings surprise track record with just 1 miss in the last 5 years. Shares have soared 86.7% in the last year but have weakened 14.5% in the last 3 months. Is this a buying opportunity as the economy reopens and consumers eat out in restaurants again? Breakout Biotech Stocks with Triple-Digit Profit Potential The 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 +50%, +83% and +164% in as little as 2 months. 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 MasTec, Inc. (MTZ): Free Stock Analysis Report Wayfair Inc. (W): Free Stock Analysis Report Shake Shack, Inc. (SHAK): Free Stock Analysis Report Square, Inc. (SQ): Free Stock Analysis Report YETI Holdings, Inc. (YETI): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research