周三大盤再度上(shang)(shang)漲，滬深300指(zhi)數收(shou)盤上(shang)(shang)漲1.49%。期(qi)(qi)(qi)指(zhi)走(zou)勢(shi)稍強于現貨(huo)指(zhi)數，其(qi)中主力合約漲幅(fu)為1.64%，升水幅(fu)度擴大至(zhi)(zhi)28.65點；持(chi)倉量增加(jia)450手(shou)至(zhi)(zhi)163644手(shou)。從主力席(xi)位持(chi)倉變化情況看(kan)，多(duo)(duo)(duo)頭(tou)前20合計加(jia)倉4597手(shou)多(duo)(duo)(duo)單(dan)(dan)，空(kong)(kong)頭(tou)前20合計減倉1167手(shou)空(kong)(kong)單(dan)(dan)；主力凈(jing)空(kong)(kong)持(chi)倉減少(shao)5532手(shou)至(zhi)(zhi)15475手(shou)。具體(ti)席(xi)位上(shang)(shang)，空(kong)(kong)軍司令中信期(qi)(qi)(qi)貨(huo)減倉2954手(shou)空(kong)(kong)單(dan)(dan)并(bing)(bing)大幅(fu)加(jia)倉4632手(shou)多(duo)(duo)(duo)單(dan)(dan)，其(qi)凈(jing)空(kong)(kong)持(chi)倉減少(shao)7586手(shou)至(zhi)(zhi)2748手(shou)；國泰(tai)君安加(jia)倉1829手(shou)多(duo)(duo)(duo)單(dan)(dan)并(bing)(bing)減倉55手(shou)空(kong)(kong)單(dan)(dan)，其(qi)凈(jing)多(duo)(duo)(duo)持(chi)倉增加(jia)1884手(shou)至(zhi)(zhi)4119手(shou)；另外，海通期(qi)(qi)(qi)貨(huo)加(jia)倉3007手(shou)空(kong)(kong)單(dan)(dan)并(bing)(bing)減倉3143手(shou)多(duo)(duo)(duo)單(dan)(dan)，其(qi)凈(jing)空(kong)(kong)持(chi)倉猛增6150手(shou)至(zhi)(zhi)10200手(shou)，坐上(shang)(shang)空(kong)(kong)頭(tou)第一寶座。綜合來看(kan)，中信期(qi)(qi)(qi)貨(huo)逢(feng)高減持(chi)空(kong)(kong)單(dan)(dan)并(bing)(bing)逢(feng)低開多(duo)(duo)(duo)，加(jia)上(shang)(shang)海通期(qi)(qi)(qi)貨(huo)的大幅(fu)做空(kong)(kong)，均在防止短期(qi)(qi)(qi)或(huo)小幅(fu)調整的可能。