last Friday is the day for SP500 rebalance

MBI was kicked out of SP500, meaning a lot of funds have to sell mbi automatically, you would imagine that MBI would break down under this huge selling pressure, but mbi is up on huge volume. So this time, the buy force is on offensive, the sell is forced. if you want to buy mbi, do not wait, if you are not sure, start with small positions. I am in for mid, long term, I do not mind up downs of 10,20 cents, even though it is a big percentage. Later when stock price is up, 10,20 cents is nothing.

Anyway, just my 2 cents, I have more info on my blog