Today's breach of the critical $1 trillion barrier by the Federal Reserve On/Offshore Genocide Opportunities Fund, LLC in its Treasury holdings is not the only important "trillion" milestone in the past few days. As was reported by the WSJ previously, total assets under management in the ETF space also passed $1 trillion for the first time ever, primarily courtesy of SPY, which added $11.6 billion (even as it continues to be the most shorted NYSE security in the world with 294.1 million shares short on 700 million total shares), and the IWM which saw $976 million in new assets. Granted, these numbers are just a little suspect, since according to the monthly Invesco PowerShares report, total ETF assets were still "just" $934.4 billion, but we will take Blackrock's word for it. And, considering that mutual funds, already at record low free cash levels, continue to bleed dry powder (32, and soon to be 33, consecutive weeks of outflows), and are saved from liquidations only due to levitating asset prices on this joke of a market which has absolutely no volume to it, many are trying to make the case that ETFs are rapidly becoming the next target of retail flows. Perhaps. Looking at the numbers this is certainly not as clear cut as those who specifically wish to see this, pronounce it as a fait accompli. Below we demonstrate that of the $96 billion in net flows YTD into various ETF styles, it is certainly not the case that equities are the pure beneficiaries of retail flows. That said, we present the thoughts of BNY's Nicholas Colas, who provides a useful reference guide on the history of the ETF business, and now that it has (allegedly) passed the trillion mark, looks at where the next trillion will come from (incidentally, it took the Fed four months to accumulate an incremental $250 billion in holdings; ETFs, on the other hand, as noted above, have seen inflows of $95.8 billion in all of 2010 - just wait until the Fed pulls a BOJ and starts buying the SPY openly instead of through Citadel).