當跌勢加速,市場恐慌加劇,所有股票都會下跌,瘋漲的個股無論基本麵好壞,最後都會大掉
for example, On July 2, 2008 coal: wlt anr pcx jrcc mee.... all drop more than 15% in a day
steel: x schn zeus clf nue dropped more than 12%, rtp dropped 70 points in 2 days
even oil price keep going up, many oil stocks dropped a lot such as apa gmxr gdp pdo mxc wll.....
in a down trend, weak stocks get even weaker. no bottom, such as cme ice nyx, solar: yge solf sol ldk tsl stp spwr jaso csun; tech: sndk nvda sigm leap...
trading strategy; short or buy over bought stock's put when mkt begain panic(usually it happened after index dropped 2 or 3 weeks), keep shorting weak stocks until index reverse
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