Short answer

Prosperity Bancshares Inc (PB) filed its fiscal 2011 10-K annual report with the SEC on Feb 29, 2012.

Top risk flagged: Dodd-Frank Act and FDIC rule changes: assessment rates reached 2.5 to 45 basis points from April 1, 2011

Prosperity Bancshares Inc FY2011 10-K analysis

AI summary of each section, grounded in the filing text

Community bank model: traditional lending, deposits and services for consumers and small and medium-sized businesses
2011 emphasis: three pending acquisitions, including American State Financial’s 37 West Texas banking offices
Strategic positioning: expanded Texas footprint through disciplined acquisitions, new banking centers and community-bank responsiveness
175 banking locations and 1,664 full-time equivalent associates as of December 31, 2011
Commercial mortgages rose 5.0% to $1.35 billion, while commercial and industrial loans declined 0.7% to $406.4 million

Net interest income $326.7M, up $8.5M or 2.7% YoY, despite tax-equivalent margin 3.98% vs 4.04%
Net income $141.7M, up from $127.7M, with efficiency ratio 42.76% vs 44.83%
Loan portfolio best performer: $3.766B, up 8.1%; securities $4.659B, up 0.9%
Cash $213.4M vs $159.4M; dividends $33.7M, no material capex cash requirements disclosed
Outlook: acquisitions expected in 2012; risks include interest rates, credit quality, liquidity and competition for deposits and loans

Dodd-Frank Act and FDIC rule changes: assessment rates reached 2.5 to 45 basis points from April 1, 2011
Texas concentration: 85.3% of loans tied to real estate, including $482.1 million in construction and land development loans
Technology vulnerability: information-system breaches could disrupt deposits, loan origination and customer relationships
Competitive disruption: larger financial institutions possess substantially greater resources for technology investment
Structural subordination: $85.1 million in junior subordinated debentures senior to common-stock dividends

Generated from the filing text; verify against the original. How to read a 10-K

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