Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. FLIR Systems (FLIR) upgraded to Strong Buy from Market Perform at Raymond James. 2. HP Inc. (HPQ) upgraded to Buy from Neutral at Mizuho. 3. PayPal (PYPL) upgraded to Outperform from Market Perform at Bernstein with analyst Lisa Ellis saying the company is "at the beginning, not the end, of multi-year outperformance supported by high-teens earnings appreciation." 4. Arconic (ARNC) upgraded to Overweight from Neutral at JPMorgan with analyst Seth Seifman citing valuation with the stock underperforming the S&P 500 Index by 15% over the past month. 5. Cavium (CAVM) upgraded to Buy from Hold at Jefferies with analyst Mark Lipacis saying the company will benefit as the industry undergoes a "tectonic shift towards a parallel computing model." This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.

In the firm's Q1 letter to investors, David Einhorn's Greenlight Capital disclosed new long positions taken during the quarter, including taking stakes in HP Inc. (HPQ), Penn Entertainment (PENN) and Roivant Sciences (ROIV). In the letter, the firm stated that it established a new "medium-sized position" in Penn at an average price of $22.69 per share, arguing that "were the market to credit PENN with merely 15% of DraftKings' value, [Penn's ESPN BET] segment alone would be worth $20 per share." On HP Inc., Greenlight stated that it had established an initial position at an average price of $30.76 per share, adding that it believes "that we are, at a minimum, on the cusp of a normal PC refresh cycle, which should drive earnings above estimates." On Roivant, Greenlight said it had established a "small long position," adding that "in addition to an exciting pipeline, ROIV has a strong track record of positive trial results and successful monetization of pharmaceutical assets." Einhorn's Greenlight Capital also noted that it reduced its Teck Resources (TECK) long position into strength during Q1 and that the firm bought a "small position" in Liberty Global (LBTYA) during Q1.

DMG Blockchain Solutions (DMGGF) announced a strategic collaboration with PayPal (PYPL) and Energy Web to explore ways to decarbonize the Bitcoin blockchain. The companies are working together on developing methods for transacting on the Bitcoin network which would expand its use as a carbon neutral payment rail, thus advancing its application. DMG, Energy Web, and PayPal are working together to publish a research paper, which we collectively believe will benefit users of the Bitcoin network who would like to take advantage of carbon neutral options in their transactions. PayPal, with its focus on developing its bitcoin payment rail, has been a leader in new payment technologies with the introduction of its enhanced services by integrating blockchain technology, launching the PayPal USD stablecoin with Paxos Trust Company in August 2023 for efficient transactions.

Ferrari (RACE) announces that Ferrari S.p.A. has signed a multiyear partnership agreement with HP Inc. (HPQ), through which its brand will appear on racing properties of Scuderia Ferrari.