One of Wall Street's biggest banks just revealed a massive stake in Twitter - and the company's stock is soaring

• Morgan Stanley said in a filing on Wednesday that it had a 5.6% stake in Twitter, which boosted shares of the social media company.
• Twitter's stock has climbed 11% so far this year, although it's still trading 34% below its 52-week high hit last June.
• Follow Twitter's stock price here on Markets Insider.

---

Twitter shares jumped more than 4% on Wednesday after Morgan Stanley said in a filing with the US Securities and Exchange Commission that it has a 5.6% stake in the company.

The bank - one of Twitter's initial public offering underwriters in 2013 - owned a little more than 43.3 million shares as of December 31, according to the filing.Advertisement

---

The move on Wednesday extended the rally in Twitter shares so far this year, which has amounted to an 11% gain year-to-date. Still, shares have fallen 34% from their 52-week high hit last June.

Last week, the stock took a hit after the company reported quarterly earnings. Though Twitter reported revenue and profits that topped analyst expectations, it said monthly active users fell by 9 million to 321 million.

Read more: Twitter is sliding despite beating Wall Street expectations

---

The Jack Dorsey-led social giant also revealed its total daily active users for the first time: 126 million.

More broadly, the majority of Wall Street analysts who cover Twitter are neutral on the name. While nearly 54% of analysts surveyed by Bloomberg carry a "hold" rating, nearly 31% recommend buying the stock, and 15% recommend investors sell.Now read:Advertisement

---

• Billionaire investor Ray Dalio sat down with his idol, Paul Volcker, who laid out the 3 principles that have guided his legendary career
• The investment chief at a $628 billion behemoth explains why the path is clear for a 10% stock-market gain this year - as long as one key issue is resolved