Strategy Jumps on Buyback Program, Comcast Rises, Roblox Soars

Today's biggest winners and losers in the stock market, a look at the notable movers:
On this episode of Stock Movers:

- Strategy (MSTR) shares rise 6.3% in premarket trading after the Bitcoin treasury company announced an up to $1 billion preferred stock repurchase program and up to $1 billion common stock repurchase program, which may be funded through Bitcoin sales.

-Comcast (CMCSA) shares rise 25% in premarket trading after the company announced its intention to separate into two independent publicly traded companies through a tax-free spin-off of NBCUniversal and Sky.

- Roblox (RBLX) shares are surging Monday after Arete Research reportedly upgraded Roblox from Neutral to Buy, raising its price target from $75 to $95. Investors are also continuing to weigh child safety risks tied to a new state lawsuit.

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