SANTIAGO, Oct 29 (Reuters) - Chile's benchmark IPSA stock index gained 1.6 percent on Thursday as retail and commodity shares recovered losses recorded in the previous session.

The benchmark IPSA index's .IPSA preliminary close was 3,373.52 points, while the all-market .IGPA closed 1.3 percent higher at 15,873.61. (Reporting by Aaron Nelsen; Editing by Dan Grebler)