The leveraged ETF owners/managers "readjust" the price daily. Think of it as a fee you must pay for the leverage. They must have extra expenses connected with all the swaps and futures, etc., needed to obtain the leverage...and they probably skim some of the cream off for themselves too.
Quote from Quickless:
Still trying to get my head around FAS/FAZ
I looked at the follow data
12/13 FAS 58.34 FAZ 42.52 Russell 696.09
1/18 77.17 30.89 766.49
The FAS has gone up 32.27% The FAZ has gone down 27.35 % The Russell has gone up 10.11%
Would have expected FAS up 30.33% and FAZ down 30.33%?
Is this the slippage you guys are playing?
Would you expect in a down market for the FAZ to go up by more than the FAS would go down?