By roughly 2008, carbon microfilament capacitive storage devices were able to match the amount of energy stored per unit volume and per unit weight that chemical batteries were capable of.
The three month average trading volume for the iShares FTSE NAREIT Mortgage Plus Capped Index Fund (REM) is 67, 000 shares per day, but a look at the one month average daily volume shows a 45% increase in volume to 97, 000 shares per day.