Big 3-digit moves, in either direction, can be unsettling for investors, but should it be?
Today's Stocks & Topics: HYGS - Hydrogenics Corp., Tech Buybacks, Jobs Report, CVX - Chevron Corp., XOM - Exxon Mobil Corp., Trading, SKX - Skechers USA Inc. Cl A, T - AT&T Inc., MKTO - Marketo Inc., LL - Lumber Liquidators Holdings Inc., Health Care.
