S2Ep 100 | Expiry Day Special: One Box, Three Clocks | 24500 Fortress vs 24600 Double Wall, Straddle 146 To 80 By 3:15, Buy Dips With Call Spreads | 11 Aug Tuesday

One hundred episodes. One hundred trading mornings of reading the actual exchange data, taking a view on record, and grading it in public the next day. And for the milestone, the market arranged a proper exam: a weekly expiry with the entire options board squeezed into one 100 point box.The board, from official settlement data: 24,500 now holds a 112 lakh contract put fortress, 39 lakh added in a single session, the biggest wall on the board. 24,600 carries 146 lakh calls AND 109 lakh puts, both armies on the same strike, with max pain sitting there for the third straight day. On Monday put writers added 2 crore contracts against just 10 lakh fresh calls, lifting the put call ratio from 0.73 to 0.85. Above the box: 109 lakh calls at 24,700, 118 lakh at 24,900, 129 lakh at 25,000.The special segment: a volatility masterclass in three clocks. Clock one, implied volatility. Friday the market priced this expiry at under 10 percent while the back weeks sat at 10.6, episode 99 said do not sell that volatility, and on Monday front week IV exploded 22 percent in one session to 12.2. The curve inverted: today now costs more than next month. Clock two, forward volatility, roughly 10.65 percent to next week and 11 percent to the monthly, so the fear is about today specifically. Clock three, the theta clock: the straddle closed near 146, should open around 120, melt another 30 to 40 rupees through the day toward 80 by 3:15, and then the last 15 minutes belong to the closing auction, where these two weeks have taught us the wildness now lives.Positioning into it: proprietary desks long 2.14 lakh calls and 0.72 lakh puts, long volatility on both sides. Foreign institutions at a week high 4.30 lakh puts, hedged 4 to 1 long via 6.27 lakh stock futures, and on Monday the role reversal: FIIs bought 1,975 crore of cash, their biggest buy in weeks, plus 3,925 crore into index options, while DIIs sold 1,290 crore, their first sell after absorbing over 7,000 crore all week. The crowd is still short 5.53 lakh puts, naked, into expiry morning.The plan on record: bias stays buy on dips with a close below 24,500 as the stop. On expiry day the tool is the call spread, not the naked option: buy 24,500 sell 24,650, or buy 24,550 sell 24,700, one by two or two by three, selling the strikes the wall writers own so their decay finances the position. Cut the extra leg if 24,700 breaks, be flat by 3:15, and never trade the indicative print in the auction.Also inside: Monday's second rotation flip in two sessions (Titan +3.1%, Bajaj Finance +1.9% against SBIN -2.2%), VIX 12.33, Brent near 88 dollars after a 5 percent two day run, gold at a fresh record 4,426 dollars, and the milestone scorecard: the RupeeCase Nifty 50 strategy at 596.98 percent net since inception versus 49.58 for the benchmark, a 47.43 percent CAGR. Episode 99 graded 4 on 5: the 24,511 dip was bought to the point.Data sourced from NSE, BSE, SEBI, NSDL and CDSL. New episode every trading day at 8:30 AM IST. The Tanmay Edge streams first on rupeecase.com. Educational content, not investment advice. SEBI RA application under process.