Knight Capital (NYSE:KCG) has found its very own knight in shining armor, as a recent $400 million rescue deal has allowed to company to avoid collapsing in the wake of last week’s trading glitch. The glitch sent nearly 150 stocks scrambling, including big names like General Electric (NYSE:GE) and Best Buy (NYSE:BBY), and caused a $440 million loss.

Jefferies Group (NYSE:JEF) arranged the package, which brought together Blackstone Group (NYSE:BX), TD Ameritrade (NYSE:AMTD), Getco, Stifel Nicolas and Stephens Inc. as investors. The deal was reached on Sunday and is expected to close today.

The investors bought preferred stock that could end up providing them with 260 million shares of the firm at $1.50 a piece. Combined, they now own more than a 70% stake in Knight Capital. The deal will also add three board members to the company.

As of now, Knight Capital’s market-making responsibilities have been revoked by the NYSE and re-assigned to Getco.

Even though mom and pop investors may not really care about such news, shareholders of Knight definitely do. Existing shareholders will see their shares diluted, and KCG is down around 18% just this morning.

The company has lost nearly three-quarters of its value since January.