The parent of Cole Taylor Bank lost $48.3 million, or $3.35 a share, in the second quarter, and blamed persistent weakness in the Chicago-area real estate market for its worsening numbers.

Its stock was down 13.9 percent to $10.25 a share in early morning trading.

In the same period a year ago, Rosemont-based Taylor Capital Group Inc. lost $26.1 million, or $2.49 a share.

Taylor, which has $4.6 billion in assets, said $15.8 million of the recent loss was due to a one-time charge of $15.8 million related to getting a class of preferred shareholders to convert their holdings into common stock.

But Taylor also had to set aside more money for potential loan losses. That provision for loan losses, which comes off of a bank’s bottom line, was $43.9 million in the second quarter, up from $35.9 million in the same period a year-ago.

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