This company, with improving fundamentals and robust operational momentum, could prove to be a good pick within a diversified, long-term portfolio.The share price of Opendoor Technologies (OPEN +0.00%) is up 294% so far in 2025, and closed at $6.43 on Dec. 22. Yet, the rally may not be over, and the stock can soar higher in the coming months.Here's why.New business strategyOpendoor's business model involves purchasing houses from willing sellers and selling them to buyers at a profit. Under the new CEO, Kaz ...