The HCN Stock Index sank again on Thursday, falling 6.1 percent to 719.59. Meanwhile, the Dow Jones Industrial average dropped 679 points, or 5.47 percent, to finish Thursday at 8,579 – its lowest point since May of 2003.

Of the 20 stocks in the HCN index, 18 showed declines for the day, including a 5.86 percent decline at Home Depot, and a 4.55 percent drop at Lowe’s. Bluelinx Holdings was one bright spot – up 53 cents to $4.35. The other gainer was BMHC, up 3 cents to $0.77.