上证指数上周的日K线图上，出现“双针探底”走势，其玄妙何在？
Daily K-line of Shanghai Stock Index presented “Double Bottom Needles”
“双针探底”，是股价涨跌运行方向的一种趋势，说的是两根有间隔距离的K线，都带有长下影线，而且下影线的最高点和最低点所在的位置很接近。
“Double Bottom Needles” is a trend of stock price movement showing two K lines with an interval and a rather longer lower shadow, and the highest or lowest number of the shadow lines are very close.
3月9日、10日和11日即星期三到星期五这3天，上证指数的日K线图就构成了这样一个组合形态。星期三和星期五都走出了带短上影线和长下影线的日K线，就是股民常说的“大长腿”，中间夹着一根高开低收的小阴线。
On March 9, 10 and 11, namely Wednsday, Thursday and Friday, the daily K line chart of Shanghai Stock Index constituted such a combination form. On both Wednsday and Friday, the K lines showed short upper shadow and long lower shadow, which is what usually dubbed by the traders as “long legs”, with an intermittent negative line of high opening and low closing price.
从技术分析的意义上来看，“双针探底”，是一种概率较大的底部反转形态，通常出现在股票趋势性长期下跌过程中，暗示股价有两次在努力探底回升，无论K线的实体部分是阴线或者阳线，还是十字星。
In the sense of technical anlysis, this combination is a reversal pattern at the bottom with high probability, which often occurs in the long term trend decline process of stock markets, implying two attempts of the price to rise, no matter the real body of the candlestick is negative, positive or a Doji.
影响股价涨跌的直接因素，是买方和卖方的力量。那么，是谁在卖？又是谁在买呢？由于散户的买卖力量会相互抵消，对股价影响最大的是市场主力即机构。北上资金避险卖出的该走的已经走得差不多了，现在大量卖出的，很可能是机构，目的是调仓换股，引诱散户恐慌性抛出，机构好将手中的题材股换成蓝筹绩优股，做一波业绩浪行情。
The price of securities are affected directly by the powers of buyers versus sellers. Thus, who are selling off, and who are buying? As the trading power of retail investors will offset each other, so the most significant impacts on the market are from the institutions. Northward capitals have almost all gone for hedge sell, thus the current heavy sell was most likely from the institutions. Their aim is to adjust positions and exchange shares by luring the retailers to panic throw, then they can readily replace the story stocks in their hands with blue-chip stocks of good performance, and launch a wave of company performance.
事实上，3月11日晚，以中国移动为首一批大盘蓝筹股都在业绩快报中说净利润增长。还有一些大蓝筹股公司纷纷宣布回购股份。
In fact, in the evening of March 11, a host of large blue chips headed by China Mobile all announced increase in net profit through their performance express. And some large blue chips have announced share buy-backs.
而星期五这天表现最引人注目的是券商股这个板块，2点钟之前“中银证券”率先涨停，2点钟过后“华林证券”也涨停，最后49家券商公司全部上涨，没有1家下跌。自己发现，在星期三买入“证券ETF基金”，作为底仓，低买高卖赚差价，证明方向正确。
In addition, on Friday, the most striking show was from the sector of security shares. Before 14:00, “Bank of China Securities” took the lead in trading to the daily limit,while “ChinaLin Securities” also rose to the limit after 14:00. Finally all 49 securities gained, and none fell. I found that “Exchange Trade Fund”, bought on Wednsday as a bottom position for buying low and selling high to earn price difference, proved right direction.
