NEW YORK (TheStreet) -- Elizabeth Warren knows why JPMorgan Chase (JPM) CEO Jamie Dimon is just not that into her, Goldman Sachs (GS) invests more in high-frequency trading and former Citigroup (C) CEO Vikram Pandit has an investment of his own.
Also, there will be a new sheriff on Wall Street next week, Bloomberg reports. Ben Lawsky, New York State's Superintendent of Financial Services, is set to step down from his post next week to run his own consulting firm. Anthony Albanese, who served under Lawsky, will be assuming the post in the interim.
Earlier this week, JPMorgan CEO Jamie Dimon said that although he agrees with U.S. Senator Elizabeth Warren on some issues, he's not sure if the Massachusetts Democrat understands the banking system. Warren appeared unavailable for comment soon after Dimon's remarks. Though she came back fighting on Friday in a podcast released on Huffington Post.
"The problem is not that I don't understand the global banking system," said Warren, the first head of the Consumer Financial Protection Bureau. "The problem for these guys is that I fully understand the system and I understand how they make their money. And that's what they don't like about me."
Shares of JPMorgan closed down 30 cents at $68.24.
Goldman Sachs, meanwhile, is putting more money into high-frequency trading. According to Bloomberg, the bank is making some high profile hires in its electronic equity-execution unit as well as investing in trading software and infrastructure.
In April, the bank bought a $21 million stake in Perseus, a company that provides telecommunications services to banks and other financial companies, which was seen as a step toward bolstering its high-frequency trading capabilities.
Shares of Goldman Sachs closed down 95 cents at $213.06.
Former Citigroup (C) CEO Vikram Pandit has a new project on his hands. He is an early investor in MMKT Exchange, a loan-trading platform expected to make it easier for middle-market companies to raise money, the Financial Times reports.
This isn't Pandit's first investment in financial technology. He has also invested in Orchard, a peer-to-peer lender; CommonBond, a student lending platform; and Dataminr, a company which provides real time data to traders, reporters, and government agencies.
Shares of Citigroup fell 11 cents to $57.10.