Nifty May Futures ended almost on par with spot at 4277 on Tuesday. The May series added 96050 shares in open interest (OI). June futures added 5.24 shares in OI.On the index options front, total OI in Calls went up by 8.50 lakh shares to 148.48 lakh, of which, OI at 4100 May Call was down at 31.22 lakh (21%); OI at 4200 Call increased to 22.47 lakh (15%), and OI at 4250 Call increased marginally to 12.83 lakh. OI at 4000 Call was down at 11.95 lakh.The 4300 May and June Call saw build-up of around 9.30 lakh shares respectively. The June 4200 Call has seen a build-up of 8.75 lakh shares.On the other hand, total OI in Puts increased by 4.82 lakh shares to 218.29 lakh, of which, OI at May 4100 Put further rose to 35.22 lakh. OI for Nifty 4000 Put dropped to 30.22 lakh and OI for 4200 Put went up to 20.81 lakh. OI for 4150 Put was down at 15.97 lakh. OI at 3800 and 3900 Put stood around 15.64 lakh and 14.02 lakh.The June series 4200, 4100 and 4000 Puts have seen a build-up of around 13.55 lakh, 12.10 lakh and 12.05 lakh shares, respectively.Yesterday's we saw cut in open interest in 4100 and 4150 Puts, while at the same time marginal rise in open interest at 4100 levels. Meanwhile, Put wirting in the June series suggest limited downside for the movement. The Nifty OI Put-Call ratio was down at 1.47.
