
Episode #124
S2Ep124 | The Writers Swapped Sides On The Last Day, And We Gap Up Onto The Magnet | Nifty Expiry | 15th Sept Tuesday
Nifty expiry day, and the board that settles today changed sides overnight. On Friday the put call ratio on the 15 September board went from 0.640 to 1.057 in a single session. Puts were added 5.42 crore against 2.58 crore of calls cut. Most of that call cut is far strike housekeeping above 25,000, which always happens in expiry week, so strip it out and look only near the money. Between 22,900 and 23,900, calls added 41.71 lakh and puts added 2.61 crore. Six to one. The near money put call ratio is 1.217. That is the option writers swapping sides on the second last day of a board, and it is a far stronger signal than the headline number. Max pain came down to 23,450 from 23,500, with spot settling 51.90 below it. GIFT Nifty at 23,525.50 is up 82, which points to an open of 23,440 to 23,490. We open on the magnet. The both sides strike moved again. The biggest put add on the entire board was 75.60 lakh at 23,300 and the second biggest call add landed on the same strike, 98 points below spot. Track the migration across five sessions: 23,800, then 23,700, then 23,500, then 23,400, now 23,300. Down exactly 100 points a session, four sessions running. And both sides walked away from 23,500 entirely, calls cut 24.10 lakh and puts cut 19.99 lakh on the same strike on the same day. It still shows 93 lakh calls so it will read as resistance on any screen. It is thinner than it looks. The number of the day is the basis. It went from 6.20 to 87.10, which is 80.90 points of premium coming back one session after 114 points vanished. But futures open interest fell by 3,96,630 alongside. Rising basis on falling open interest is short covering, the exact mirror image of Thursday's long unwinding. The premium did not come back because somebody bought the future. It came back because somebody had to. Breadth has been frozen for three sessions. Friday was 952 advances against 1,644 declines, 0.579 on the advance decline. Thursday, when the index rose, it was 0.56. Wednesday, when it fell, 0.56. The index has swung both ways and two in three stocks have fallen every single session. What is actually moving it: HDFC Bank rose 2.08% on a day the index fell, and its futures open interest rose 1.8% alongside. Price up on open interest up is fresh long money, and it carries the largest stock futures position on the board by value, ₹25,536 crore against Reliance's ₹16,296 crore. Foreign futures shorts went to 2,84,882, another run high, with the book agreeing across all three instruments: short futures, short calls, long puts. Overnight, the round numbers all landed the same morning. The American ten year is at 5.00, named at 4.97 on Friday. Ours is at 7.01. Japan's is at 3.00. Brent is 107.03 after settling 105.68, and the rupee weakened a fourth consecutive session to 95.55 with the dollar bid as well. The plan. Resistance 23,450, then 23,500, then 23,700. Support 23,400, then 23,300, then 23,200. Band 23,147 to 23,650. The straddle implied move to settlement is 260.6 points and the gap alone uses 82 of it, leaving about 180 for the session. That is a bad day to buy premium and a dangerous one to sell it naked. Defined risk only, if anything at all. And remember what a pin is: a settlement mechanic, not a trend. Data from NSE and BSE BhavCopy, 11 September close, with global levels read on the morning of 15 September. Streams first on rupeecase.com . Educational content only. Not investment advice.






