The Rakuten-backed, China-based online travel agency has become the latest China-based company to file for an initial public offering in the United States.

The SAP-backed company, which is developing software to target the call centre market, has secured $70m in an initial public offering that could rise to $80.5m.

E-commerce company Alibaba plans to increase its share in microblogging platform Sina Weibo in its initial public offering, which could generate up to $437m.

Truecar, an online provider of automotive pricing information that counts USAA and Capital One among its key shareholders, has targeted $125m in its initial public offering.

Glori Energy, backed by investors including Energy Technology Ventures, has announced a merger deal with Infinity Cross Border Acquisition Corporation.

Pharmaceutical company Alkermes is among the backers to benefit from Celgene's investment, which was made at three times the value of Acceleron's IPO in September.

The Kaiser Permanente-backed company, developer of treatments for heart aneurysms, raised the maximum target for its initial public offering from the initial $100m.

Opower, a GE-backed company that uses data analysis to make energy use more efficient, has raised $115.9m from an IPO that could close at more than $133m.