The weekly recap of hires, job moves and promotions around Wall Street.
Exchanges want to give a public response to data fee accusations.
NYS Comptroller DiNapoli says this year is also shaping up strong.
Increased volatility drives trading profits.
ITG says exchange argument against pilot may not hold water.
John Tuttle also promoted to Chief Operating Officer.
CHX will operate as national securities exchange in Chicago.
Exchange adjusts trading fees for certain securities.
After SEC blocked foreign-led purchase, CHX looks to Big Apple.