The stock price of Remark Holdings is likely to rise in the short term due to the speculative nature of the tweet suggesting a deal with Microsoft. However, since the deal is unconfirmed, the impact is based on market perception and investor sentiment rather than concrete financial changes. The confidence score is moderate because the information is not officially confirmed, and the situation can quickly reverse if the deal does not materialize.

Microsoft's stock price might see a minor impact due to the rumors of a deal with Remark Holdings. However, given Microsoft's size and market capitalization, such speculative news is less likely to have a significant effect on its stock price. The confidence score is moderate to high because Microsoft's stock is generally less volatile to such rumors compared to smaller companies like Remark Holdings.