When Microsoft (MSFT) offered to pay $31 per share (half in cash and half in MSFT stock) for Yahoo (YHOO) early in 2009, YHOO shares jumped from $19.18 (before the announcement) to $28.38 (after the announcement). At the same time MSFT shares dropped from $32.01 to $29.90. The overall stock market was essentially flat that day. YHOO had 1.4 billion shares outstanding and MSFT had 9 billion shares outstanding. What was the market's estimate of the value create d (or destroyed) by this merger?