周三大(da)(da)盤(pan)略有(you)沖高后(hou)震(zhen)蕩回落(luo)，最(zui)后(hou)滬深300指(zhi)(zhi)數下跌0.19%。期(qi)(qi)(qi)指(zhi)(zhi)走(zou)勢(shi)略強于(yu)(yu)現(xian)貨指(zhi)(zhi)數，其(qi)中(zhong)(zhong)即(ji)(ji)將(jiang)于(yu)(yu)周五交割的(de)7月合(he)(he)約(yue)跌幅(fu)(fu)(fu)為(wei)(wei)0，貼水幅(fu)(fu)(fu)度收窄至(zhi)7.47點(dian)，持(chi)(chi)倉(cang)量繼續大(da)(da)幅(fu)(fu)(fu)減(jian)少14642手(shou)(shou)(shou)至(zhi)56565手(shou)(shou)(shou)；即(ji)(ji)將(jiang)成為(wei)(wei)主(zhu)(zhu)力(li)合(he)(he)約(yue)的(de)8月合(he)(he)約(yue)跌幅(fu)(fu)(fu)為(wei)(wei)0.08%，貼水幅(fu)(fu)(fu)度略有(you)收縮至(zhi)10.67點(dian)，持(chi)(chi)倉(cang)量大(da)(da)幅(fu)(fu)(fu)增加(jia)(jia)(jia)13265手(shou)(shou)(shou)至(zhi)46684手(shou)(shou)(shou)。從(cong)主(zhu)(zhu)力(li)席(xi)位持(chi)(chi)倉(cang)變化情況看，多空(kong)(kong)(kong)主(zhu)(zhu)力(li)均大(da)(da)幅(fu)(fu)(fu)減(jian)倉(cang)或移倉(cang)，不過空(kong)(kong)(kong)頭(tou)(tou)(tou)主(zhu)(zhu)力(li)趁大(da)(da)盤(pan)調(diao)整繼續瘋狂大(da)(da)甩賣(mai)的(de)跡象(xiang)十(shi)分明顯，其(qi)中(zhong)(zhong)多頭(tou)(tou)(tou)前(qian)20合(he)(he)計減(jian)倉(cang)7257手(shou)(shou)(shou)，而空(kong)(kong)(kong)頭(tou)(tou)(tou)前(qian)20合(he)(he)計減(jian)倉(cang)11658手(shou)(shou)(shou)，主(zhu)(zhu)力(li)凈(jing)空(kong)(kong)(kong)持(chi)(chi)倉(cang)大(da)(da)幅(fu)(fu)(fu)降低到(dao)6020手(shou)(shou)(shou)。空(kong)(kong)(kong)頭(tou)(tou)(tou)前(qian)3大(da)(da)主(zhu)(zhu)力(li)海通期(qi)(qi)(qi)貨、中(zhong)(zhong)信(xin)(xin)期(qi)(qi)(qi)貨和國泰君(jun)安減(jian)倉(cang)空(kong)(kong)(kong)單分別為(wei)(wei)2624手(shou)(shou)(shou)、1267手(shou)(shou)(shou)和1662手(shou)(shou)(shou)，大(da)(da)有(you)奪路而逃的(de)跡象(xiang)。不過從(cong)8月合(he)(he)約(yue)看，空(kong)(kong)(kong)頭(tou)(tou)(tou)前(qian)20合(he)(he)計加(jia)(jia)(jia)倉(cang)空(kong)(kong)(kong)單9684手(shou)(shou)(shou)，遠多于(yu)(yu)多頭(tou)(tou)(tou)前(qian)20加(jia)(jia)(jia)倉(cang)的(de)6975手(shou)(shou)(shou)，主(zhu)(zhu)力(li)凈(jing)空(kong)(kong)(kong)持(chi)(chi)倉(cang)大(da)(da)幅(fu)(fu)(fu)增加(jia)(jia)(jia)到(dao)7261手(shou)(shou)(shou)；其(qi)中(zhong)(zhong)中(zhong)(zhong)信(xin)(xin)期(qi)(qi)(qi)貨大(da)(da)幅(fu)(fu)(fu)加(jia)(jia)(jia)倉(cang)空(kong)(kong)(kong)單2687手(shou)(shou)(shou)，而加(jia)(jia)(jia)倉(cang)多單僅(jin)492手(shou)(shou)(shou)，其(qi)凈(jing)空(kong)(kong)(kong)持(chi)(chi)倉(cang)迅(xun)速攀高到(dao)3781手(shou)(shou)(shou)；海通期(qi)(qi)(qi)貨加(jia)(jia)(jia)倉(cang)空(kong)(kong)(kong)單1025手(shou)(shou)(shou)，同時減(jian)倉(cang)多單190手(shou)(shou)(shou)，其(qi)凈(jing)空(kong)(kong)(kong)持(chi)(chi)倉(cang)大(da)(da)幅(fu)(fu)(fu)增加(jia)(jia)(jia)到(dao)3936手(shou)(shou)(shou)。可見這兩大(da)(da)做(zuo)空(kong)(kong)(kong)主(zhu)(zhu)力(li)盡管在(zai)7月合(he)(he)約(yue)上(shang)虧損較為(wei)(wei)嚴重，但(dan)想在(zai)8月合(he)(he)約(yue)上(shang)報仇的(de)意(yi)圖(tu)開始顯現(xian)。

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