JPMorgan Chase & Co. remains the banking behemoth of Houston with nearly half the area's market share, according to SNL Financial data released last week by Performance Trust Capital Partners. JPMorgan Chase had 227 branches and $104.2 billion in area deposits, giving it 48.3 per-cent of the Houston metropolitan market. Its local deposits increased 44.8 percent from $71.9 billion in 2013. "They're four times as big as the next competitor," said Dan Bass, managing director of investment banking for bank advisory firm Performance Trust Capital Partners. "It's interesting to see how much they've increased year over year."