Amazing dispersion statistic from GS: Over 40% of yesterday’s notional volume on the exchange was attributable to ETFs. The past nine sessions have had an ETF value greater than 35% of the tape, which is the second longest streak on record. Vol has remained notably low relative to the outsized ETF activity, the last time we saw 9 straight sessions of this kind of ETF activity, the VIX was north of 70.(zerohedge)