This could make these ETFs the ones to watch out for in the days ahead to see if this trend of extra interest continues: TIP : Volume 4.25 times average This U.S. inflation-protected ETF was in focus yesterday as roughly 4.75 million shares moved hands compared with an average of roughly 1.12 million shares. TIP gained about 0.04% on the day. In the last one-month period, TIP was off about 0.4%.