If you use the L-fund Returns Tracking Spreadsheets on http://www.tsptalk.com/utilities.html, you may want to make an adjustment.

The TSP has changed the share price format on their website (www.tsp.gov), moving the L-Inc fund price from the 5th column to the 1st column.

I made a change on the L-fund spreadsheet if you'd like to download a new verision.