Stocks that moved substantially or traded heavily Wednesday:
DaVita Inc., up $8.27 to $69.20
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The dialysis services company agreed to sell a physician practice business to health insurer UnitedHealth for $4.9 billion.
Fred's Inc., down 95 cents to $4.14
The discount retailer suspended its dividend and said it will consider selling some businesses after a weak quarter.
AeroVironment Inc., up $11.22 to $54.47
The drone maker reported a big jump in sales in its most recent quarter.
Vera Bradley Inc., up $2.39 to $11.03
The handbag and accessories company forecast solid results in the current quarter.
Patterson Cos., down $1.51 to $34.81
An analyst for Morgan Stanley said Amazon is likely to enter the dental supply business.
Brown-Forman Corp., up $4.04 to $65.85
The liquor company raised its annual forecasts after it reported strong quarterly sales of bourbon, tequila and vodka.
United States Steel Corp., up $1.28 to $31.11
Steelmakers rallied after the Commerce Department said it will place an import duty on some steel products imported from Vietnam.
H&R Block Inc., up $2.70 to $28.99
The tax preparer posted stronger sales than analysts expected.