Comparing years: 
 
2007- January through December 
 
F- Amount traded over the year: $8,735,859,214 
Cost for the year for all trades: $1,085,881 1.2 basis points. 
 
 
C - Amount traded over the year: $11,118,101,427 
Cost for the year for all trades: $605,434 0.5 basis points
 
S- Amount tradaed over the year: $13,693,147,225 
Cost for the year for all trades: $ -4,324,671 -3.2 basis points 
(yes, that's a NEGATIVE trading cost of four million dollars to trade 13 
BILLION dollars over the year ) 
 
 
I- Amount traded over the year: $26,732,802,960 
 
Cost for the year for I fund trades: $16,513,454 , or 6.2 basis points. 
 
 
 
Total combined costs for ALL trading in 2007: 
F+C+S+I= $13,880,098
 
Total number of TSP Shareholders in 2007: 3,900,000
Cost 
per TSP Shareholder for all trading in 2007: 
$3.55
 
 
Prior year: 
 
2006- January thru December 
 
F Fund: 
Amount traded: $2,389,469,901 
Cost for the year for all trades: $234,658 or 1.0 basis points. 
 
C Fund: 
Amount traded: $ 7,954, 599,207 
Cost for the year for all trades in 2006: $ - 27,387 or -0.003 basis point
 
 
S Fund: 
Amount traded: $ 6,086,286,346
Cost for the year for all trades: $ 1, 154,212 or 1.9 basis points 
 
 
I Fund: 
Amount trades: $ 12,306,380,288 
Cost for the year for all trades: $ 13,867, 759 or 11.3 basis points.
 
 
Total trading costs For ALL trades in 2006:
F+C+S+I= $15,229,242
 
 
 
Total number of TSP Participants in 2006= 3,680,000 
 
Cost 
per TSP Shareholder for all trading in 2006: 
$4.13 
 
So....how much did costs go up from all those "Daytraders?"
 
Answer: IT DIDN'T COST MORE. 
 
 
IT COST 58 cents LESS per person in 2007 than it did in 2006.