The big tech/business news of the day is Yahoo’s stock “plunge” following the withdrawl of Microsoft’s takeover offer. I’m sure plunge headlines sell newspapers and all, but the more long-term story is more interesting.

On Jan 31, the day before Microsoft offered $31/share for Yahoo, YHOO was at $19.18/share (market cap: $26.4 billion) and MSFT was at $32.60/share (market cap: $303.6 billion). At the close of trading today, YHOO closed at $24.37/share (market cap: $33.5 billion) and MSFT was at $29.08/share (market cap: $270.8 billion). In other words, the Microsoft offer increased the value of Yahoo! Inc. by more than $7 billion and decreased the value of Microsoft Corporation by almost $33 billion. In still other words, in attempting to take Yahoo by force, they let an amount equal to Yahoo slip through their fingers. Why isn’t anyone writing about Yahoo’s amazing stock gains and Microsoft’s plunge?