周(zhou)三大盤(pan)震蕩下行，最終滬深(shen)300指數收盤(pan)下跌1.39%。期(qi)(qi)(qi)指走(zou)勢弱于現(xian)貨(huo)(huo)指數，其中，主(zhu)力(li)合約收盤(pan)下跌1.71%，貼(tie)水幅度(du)增(zeng)(zeng)(zeng)加(jia)(jia)(jia)1.39點至(zhi)1.72點，持(chi)倉(cang)(cang)量增(zeng)(zeng)(zeng)加(jia)(jia)(jia)95手(shou)(shou)(shou)至(zhi)108348手(shou)(shou)(shou)。從主(zhu)力(li)席位(wei)持(chi)倉(cang)(cang)變(bian)化情(qing)況看(kan)，多(duo)頭前(qian)20合計加(jia)(jia)(jia)倉(cang)(cang)1419手(shou)(shou)(shou)，空(kong)(kong)(kong)(kong)(kong)頭前(qian)20合計加(jia)(jia)(jia)倉(cang)(cang)1652手(shou)(shou)(shou)，主(zhu)力(li)凈(jing)空(kong)(kong)(kong)(kong)(kong)持(chi)倉(cang)(cang)增(zeng)(zeng)(zeng)加(jia)(jia)(jia)1012手(shou)(shou)(shou)至(zhi)7063手(shou)(shou)(shou)。具體席位(wei)上，中信期(qi)(qi)(qi)貨(huo)(huo)加(jia)(jia)(jia)倉(cang)(cang)132多(duo)單并(bing)加(jia)(jia)(jia)倉(cang)(cang)397手(shou)(shou)(shou)空(kong)(kong)(kong)(kong)(kong)單，凈(jing)多(duo)持(chi)倉(cang)(cang)減少265手(shou)(shou)(shou)至(zhi)1995手(shou)(shou)(shou)；國泰君(jun)安減倉(cang)(cang)415手(shou)(shou)(shou)多(duo)單并(bing)加(jia)(jia)(jia)倉(cang)(cang)670手(shou)(shou)(shou)空(kong)(kong)(kong)(kong)(kong)單，其凈(jing)空(kong)(kong)(kong)(kong)(kong)持(chi)倉(cang)(cang)增(zeng)(zeng)(zeng)加(jia)(jia)(jia)1085手(shou)(shou)(shou)至(zhi)5016手(shou)(shou)(shou)。此外，海通期(qi)(qi)(qi)貨(huo)(huo)凈(jing)空(kong)(kong)(kong)(kong)(kong)持(chi)倉(cang)(cang)增(zeng)(zeng)(zeng)加(jia)(jia)(jia)1928手(shou)(shou)(shou)至(zhi)5955手(shou)(shou)(shou)，光大期(qi)(qi)(qi)貨(huo)(huo)凈(jing)空(kong)(kong)(kong)(kong)(kong)持(chi)倉(cang)(cang)增(zeng)(zeng)(zeng)加(jia)(jia)(jia)2231手(shou)(shou)(shou)并(bing)轉為凈(jing)空(kong)(kong)(kong)(kong)(kong)1361手(shou)(shou)(shou)。綜(zong)合來看(kan)，四大主(zhu)力(li)席位(wei)短(duan)期(qi)(qi)(qi)均加(jia)(jia)(jia)大了(le)空(kong)(kong)(kong)(kong)(kong)單力(li)度(du)，這對多(duo)頭不利。