Processing ContentProsperity Bancshares in Houston has agreed to pay $2 billion for crosstown rival Stellar Bancorp in a deal that would create the second-biggest Texas-headquartered bank. The planned acquisition of Stellar is the third deal Prosperity has announced since mid-July. Its $269 million deal for the $2.52 billion-asset Southwest Bancshares in San Antonio is expected to close Feb. 1. The merged Prosperity is projecting $42 billion of deposits at closing. Piper Sandler's Stephen Scouten noted that the $39.08 per share price tag amounted to a 20% premium over Stellar's Tuesday closing price of $32.63.