Solar companies — Solar stocks surged after the Biden administration announced it would suspend tariffs on panel products from several Southeast Asian nations. Sunrun shares soared 5.9%, while SunPower surged 2.7%. Enphase Energy shares were up 5.4%.

Twitter — Shares of Twitter plunged 1.5% after Elon Musk accused the company of “resisting and thwarting” his right to information about fake accounts on the platform, according to a letter to the company written by his lawyer Monday.

Eli Lilly — The drugmaker was 2.4% higher before giving back gains. 

Spirit Airlines — Shares of the discount air carrier soared 7% after its bigger rival, JetBlue Airways, sweetened its offer to buy the company Monday. Spirit rejected JetBlue’s initial offer of $30 per share last month. Under the new terms, Spirit shareholders would get $31.50 per share. JetBlue shares added 2.1%.

Keurig Dr Pepper — Shares of the beverage maker rose 5%, along with a handful of others names, after S&P Dow Jones Indices announced it would be added to the S&P 500 index later this month. Other additions On Semiconductor and Vici Properties gained 4.8% and 3.4%, respectively.

DiDi Global — Shares of the Chinese ride-hailing giant surged 24.3% after The Wall Street Journal reported regulators are concluding investigations into the company. The Journal reported that authorities would lift a ban on Didi adding new users as early as next week and reinstate the company’s app in domestic app stores. Didi has been one of the worst-hit companies by Beijing’s regulatory tightening and has been the subject of a cybersecurity probe since days after its U.S. IPO.

CrowdStrike — Shares of the cybersecurity company rose 4.2% after Morgan Stanley upgraded them to overweight from equal weight, calling them a buy as the macro environment becomes less certain.