TRENT BTST - No Buy

IF the largest single OI change in the entire chain is put long UNWINDING at a strike well below spot — THEN as a buyer, read this as a capitulation signal, not a floor-building signal. Today's TRENT chain had −1,094 OI change at 4,000 PE — the single biggest number in the whole sheet. Bears who bought puts expecting TRENT to fall to 4,000 gave up and closed their positions in size. This is different from put writing (which is institutional conviction that a level holds). Put long unwinding says: I was wrong, I'm out. When the largest bearish position in a chain exits, it removes a structural weight from the stock. As a buyer, this is a subtle but powerful signal — not because bulls are building, but because the last big seller just left the room. The rule: scan the put side not just for writing (positive OI change) but also for large unwinding (negative OI change). Large put long exits are a secondary bullish signal — they confirm the directional lean but don't drive it alone. Pair it with at least one call-side signal before acting.

INFY - Going nowhere tomorrow

IF fresh call OI builds up at a strike that is less than 1.5% above the current spot price AND put OI builds up symmetrically below spot — THEN as a buyer, you are looking at a pinning setup, not a breakout setup. Today's INFY chain is the textbook example. The 1,260 CE wall is only ₹18 above a ₹1,242 spot — that's 1.4%. When market makers and institutions install a call wall this close to spot, they are explicitly saying: we expect this stock to go nowhere tomorrow. For a buyer, the breakeven on a 1,260 CE (premium ₹24) is ₹1,284 — which is already above the next wall at ₹1,300. You need the stock to blast through two walls just to make money. The rule: distance between spot and the nearest call wall must be at least 2–3% for a call buy to have structural room to breathe. When the wall is closer than 1.5%, the trade is structurally compromised before you even dial the broker. Look at the gap first, then the OI direction.

OFSS - No Buy

IF call short covering dominates the chain above spot AND put writing dominates below spot — but IV is sitting at 1.5x its normal range — THEN as a buyer, the OI structure is telling you the direction, but the IV is telling you the market has already priced in the move. Today's OFSS chain is a masterclass in this trap. Every OI signal screamed bullish: walls cracking at 8,100–8,500, floors being built at 8,500 PE, bears unwinding at 7,000–7,500 PE. Yet IV at 38% on a stock that normally trades 22% means you are buying the most expensive option of the quarter — right before a results event that will collapse IV regardless of outcome. The rule to tattoo in your playbook: OI tells you direction; IV tells you price. You need both to align. When direction is right but price is wrong, you sit out — and wait for IV to revert before buying. Post-results, if OFSS holds above 8,500 and IV drops back to 22–25%, that's the real entry for next week's trade.

DRREDDY BTST

IF you see put writing concentrated AT-THE-MONEY (not just below spot, but right at current spot price) — today DRREDDY 1,300 PE saw +1,077 fresh contracts written when spot was ₹1,328, making this essentially an at-the-money floor — THEN as a buyer, this is your highest-conviction bullish signal in the entire chain. Put writers at-the-money are taking on maximum risk: if the stock falls even ₹30, their short puts go deeply in-the-money. They only do this when they are extremely confident the stock will not fall. As a buyer, when you see put writing at spot rather than safely below it, the institutional conviction level is telling you something the price chart isn't yet showing. The closer the put writing is to the current spot, the stronger the bullish floor signal — and the tighter your stop-loss can be, because you know exactly where the institutional pain point is. 

THE OPTIONS BUYER'S PLAYBOOK

THE OPTIONS BUYER'S PLAYBOOK 

Lesson 1 — Read the index before any stock. IF the screener shows an index (NIFTY/BANKNIFTY/FINNIFTY) with an OI spurt 3–5× higher than most stocks, THEN read the index chain first. Institutions move the index before stocks reprice. Your stock pick should confirm what the index is already saying.

Lesson 2 — Expiry day OI is noise, not signal. IF today is expiry day and the screener shows a massive OI spike on an index, THEN ignore it entirely for BTST. That OI is settlement and pinning activity, not fresh directional positioning. You need the next-expiry chain. Without it, there is no trade.

Lesson 3 — Below 2:1 call-to-put ratio, sit out. IF the call-to-put OI ratio in the actionable zone around spot is below 2:1, THEN do not buy — even if the directional bias looks mildly bullish. When writers on both sides are equally active, the underlying goes nowhere and theta bleeds you daily. The 2:1 rule exists to filter ambiguous days. Preservation here funds your high-conviction trades.

Lesson 4 — Old ceiling gone, new ceiling installed = wait, not buy. IF call short covering is happening at strikes below spot AND fresh call writing is simultaneously appearing at strikes above spot in the same session, THEN this is consolidation, not breakout. The old resistance cleared but new resistance was immediately installed at a higher level. Wait for the new ceiling to start covering before you buy calls.

Lesson 5 — Multi-strike call covering + put writing ladder = strongest buy signal. IF call short covering is happening across 4–5 consecutive strikes above spot AND an ascending put writing ladder is being built below spot in the same session, THEN buy calls at half-size minimum — even if the absolute call-to-put ratio is below 2:1. Single-strike covering is one player. Five-strike covering is an institutional bear retreat. Paired with a put writing ladder, this is the highest-conviction bullish pattern a chain can show.