OpenAI has introduced its new GPT-4 Turbo AI model, offering enhanced capabilities, including answers with context up to April 2023, support for input up to 300 pages in length, DALL-E 3 image generation, and text-to-speech functionality with six preset voices. OpenAI is also reducing the prices for developers, making input tokens 3x cheaper at $0.01 and output tokens 2x cheaper at $0.03. Additionally, OpenAI is allowing users to create custom chatbots easily, expanding customization options for its ChatGPT chatbot. The company has introduced the GPT Store, where users can share their customized GPTs and potentially earn money based on usage. OpenAI is also integrating various AI tools into ChatGPT, making it an all-in-one solution for image generation, browsing, data analysis, document upload, and PDF search. Furthermore, OpenAI announced its commitment to defend customers facing legal claims related to copyright infringement in response to the rise in generative AI-related legal action.

Here are the stocks making the most moves on Monday:

Hilton Grand Vacations (HGV) saw its stock decline roughly 8% after announcing the acquisition of Bluegreen Vacations for approximately $1.5 billion. HGV also reported third-quarter revenue of $1.02 billion, down from $1.12 billion a year earlier, and trimmed its full-year guidance for adjusted earnings before interest, taxes, depreciation, and amortization.

Paramount Global witnessed a 7.8% tumble following a rare double-downgrade from Bank of America, which shifted its rating on the entertainment giant to underperform from buy. Bank of America noted that there aren't any significant opportunities to sell parts of the business on the horizon.

Bloomin' Brands, a restaurant operator, saw its shares dip 2.2% after a downgrade by Raymond James from strong buy to outperform. Raymond James cited weak traffic and rising beef cost pressures as reasons for the downgrade, particularly after Bloomin's third-quarter earnings release.

SolarEdge's shares tumbled 5.1% after Wells Fargo downgraded the stock from overweight to equal weight and cut its price target from $190 to $82. The downgrade came as SolarEdge provided a dismal fourth-quarter guidance due to weak demand, resulting in a year-to-date drop of over 75%.

Albemarle, a chemical company, witnessed a 6.7% decline in its stock price after UBS lowered its rating from buy to neutral and slashed its price target by more than 40%. UBS expressed concerns about future risks to lithium volume growth that could affect Albemarle's earnings.

Berkshire Hathaway, known for Warren Buffett's investment, saw its B-class shares fall 1.5% despite reporting growth in operating earnings and a growing cash pile in its third-quarter results. Berkshire did report an investment loss of $24.1 billion in the quarter.

Dish Networks' shares plunged more than 37% after the company missed both revenue and earnings expectations in the third quarter. Dish reported losses of 26 cents per share on $3.7 billion in revenue, falling short of analysts' forecasts.

Constellation Energy, an energy company, gained 6.5% after raising its earnings guidance for the full year. The company now anticipates adjusted EBITDA of $3.80 billion to $4 billion, up from the previous guidance of $3.3 billion to $3.7 billion.

Dominion Energy's shares jumped 4.5% after Barclays upgraded the stock from equal weight to overweight. Barclays saw Dominion's latest earnings as a "positive inflection point."

Booking Holdings, an online travel company, experienced a 3.9% increase after D.A. Davidson upgraded its shares to buy and added them to its list of top picks, suggesting that Booking Holdings is worth buying on the recent dip.