ok, that make some sense... -but-
"The SSO, the leveraged long-biased fund, may be having trouble competing with the SPDR's, the unleveraged long-biased fund."
By that argument , shouldn't there be a roughly equal number of shorts who don't want 2X leverage so they just directly short SPDRs, thus balancing out any differences due to this competition factor?
I've heard it's difficult to short SPY
directly, so maybe that would be a reason, although I haven't confirmed that personally.
Anyways, I'm not interested about the leverage power aspect, just wondering why the discrepancy in volumes
and relation to supply/demand.