The associated costs and
required daily rebalancing continuously erode the long term value of the assets in the fund (and hence the value of shares in the fund itself).
Not exact matches
Portfolios are
rebalanced and tax - loss harvesting is applied (if
required) on a
daily basis.
That in itself is noteworthy, as any fund prospectus from either ProShares or Direxion clearly warns that the turnover
required by
daily -
rebalanced portfolios should create a greater likelihood of capital gains distributions.
However, leveraged ETFs
require complex derivatives and periodic
rebalancing to achieve the advertised
daily return.