** Shares of Old Dominion Freight Line ODFL.O fall about 10% to $147 in early trading, hitting a two-year low
** Co posts Q2 revenue of $1.41 bln below analysts' avg. estimates of $1.42 bln according to data compiled by LSEG
** ODFL also reports Q2 profit of $1.27 per share, as compared to estimates of $1.29 per share
** Co's operating ratio for the quarter rose to 74.6% from 71.9% a year earlier
** Including session moves, shares down 17.2% YTD
(Reporting by Apratim Sarkar)
((Apratim.Sarkar@thomsonreuters.com))