Of course, this has had a tremendous impact on the Federal Reserve's balance sheet which has expanded to gigantic proportions (read Can the Dollar ETF (UUP) Finally Break Out? Therefore the Federal Reserve seems likely to continue with the purchase of mortgage backed securities and treasury bonds worth $85 billion until the unemployment and inflation thresholds are met (read Have We Seen the Bottom in Gold ETFs? However, with the benchmark 10 year rates nearing 1.88% at present, the biggest question still remains-How low can yields go from current levels despite continuation of the monetary easing measures?