Stocks making the biggest moves in the premarket: Spirit Airlines, Didi Global, Keurig Dr Pepper and more

cnbc.com:

Take a look at some of the biggest movers in the premarket:

Spirit Airlines (SAVE) – Spirit jumped 6.1% in the premarket after JetBlue (JBLU) sweetened its bid for Spirit. JetBlue will increase its breakup fee for the deal to $350 million and pay part of that as a dividend if the deal is consummated, increasing the value to $31.50 per share. JetBlue shares were unchanged.

Didi Global (DIDI) – Didi shares skyrocketed in the premarket after The Wall Street Journal reported that China regulators have concluded a year-long probe and it is set to lift an order banning the company from adding new users.

Keurig Dr Pepper (KDP) – The beverage maker's stock will be added to the S&P 500 index prior to the opening of trading on June 21, along with ON Semiconductor (ON) and real estate investment trust VICI Properties (VICI). Keurig rallied 7.9% in premarket action, with ON Semiconductor surging 7.2% and VICI jumping 8.4%.

Eli Lilly (LLY) – The drugmaker's stock rose 1.2% in premarket trading, after announcing successful results in studies involving diabetes drugs Trulicity and Jardiance.

Under Armour (UAA) – Under Armour stock is among those being replaced in the S&P 500 on June 21. Under Armour will move to the S&P MidCap 400, along with laser maker IPG Photonics (IPGP). Under Armour lost 1.2% in the premarket.

Revlon (REV) – Revlon is in talks with lenders on pushing back debt payment deadlines as the cosmetics maker tries to avoid a bankruptcy filing, according to people familiar with the matter who spoke to The Wall Street Journal. The talks involve extending the maturity date on about $1.7 billion in debt that comes due as early as 2024. Revlon added 1.6% in premarket trading.

Starbucks (SBUX) – Starbucks is considering only