put/call vs sp500
文章来源: nullll2009-07-04 04:58:40
when put/call dropped below 0.6 or close to 0.55, mkt usually began to selloff. the weakest sector in june 2009 was commodity(oil, fertilizer, steel, housing, ure..), strongest sector was tech/biotech/chinese stocks such as stec aapl bidu..same as 2003