Bond Yields at 3-Month Low

The yield on the 10-year US note has fallen to 1.91%, the lowest level in nearly 3 months. This is a surprise for several reasons including the fact that stocks have performed well and the same time as US Treasuries.

Why is that?

One pretty simple explanation could be the Fed and "Operation Twist" that has the Fed buying Treasuries and artificially keeping interest rates low even as money goes into stocks. I cannot see this hand-in-hand movement continuing for the long-term and if stocks continue to make new highs it will be inevitable that Treasuries will fall and yields could skyrocket higher.