Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Kohl's (KSS) upgraded to Buy from Neutral at BofA with analyst Lorraine Hutchinson saying the department store stocks have performed similarly year-to-date, but as the reopening phase continues, investors will begin to differentiate between different business model. 2. Nikola (NKLA) upgraded to Overweight from Neutral at JPMorgan with analyst Paul Coster saying the shares, after falling 40% in month-to-date in July, are starting to look attractive for long-term investors ahead of a "number of potential positive catalysts in coming weeks and months." 3. S&P Global (SPGI) upgraded to Conviction Buy from Buy at Goldman Sachs with analyst George Tong saying S&P is a "classic compounder," with a wide "competitive moat" across its business lines. 4. Maximus (MMS) upgraded to Strong Buy from Market Perform at Raymond James with analyst Brian Gesuale saying the upgrade is based on Maximus' unique position administering social programs and his belief that it will pivot to organic growth in fiscal 2021 for the first time since fiscal 2017. 5. Herc Holdings (HRI) was upgraded to Buy from Neutral at BofA, while Caterpillar (CAT) was upgraded to Neutral from Underperform. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.