Primaegis Pre-Open Tue 04 Aug 2026

EXPIRY AGAINST AN AUCTION PRINT

Nifty's official +1.60% close was set by NSE's new Closing Auction Session on its first day — and the option chain never repriced to it. GIFT Nifty at 24,665 is flat against where the index actually traded, and −109 against the number on the screen.

The line24,600

Yesterday's plan — graded

4/5hit

Held 24,300 with room to spare — Monday's low was 24,515.15, so the line was never tested — reclaimed 24,429, took 24,500 and cleared the 24,556 band cap. Red branch correctly dormant. The miss was the ceiling: the note said the chain did not price reaching 24,600 by today, and Nifty closed 24,774.30, some 174 points above it. The band was too narrow because the move that broke it was mechanical, not directional.

Three drivers

The close you are trading against is an auction print, not a traded level

NSE's Closing Auction Session went live Monday for F&O stocks — normal trading to 3:15 pm, then a call auction to 3:35 pm sets the closing price, replacing the old VWAP method. On day one Nifty printed +1.60% at 24,774.30 while the BSE Sensex, which did not change its mechanism, closed +0.70% at 78,639.03. NSE has confirmed the level as official and says there was no trading error. The transmission is mechanical: the option chain, GIFT Nifty and every stop level in the market are anchored to the pre-auction price near 24,650, so today's first print can look like a gap-down that never actually happened.

Crude's second helping — Brent −4.68% as the strikes are called off

Brent settled $83.82 and WTI $79.60 (−6.00%) after Trump suspended planned strikes on Iran at Gulf allies' request and reopened negotiations. That is the second leg of a crude de-rating India has been paid for once already, and it reaches the tape through the import bill, the inflation path and the rate expectation — which is exactly where Monday's leadership showed up: building materials, autos, banks and IT, with pharma and hospitals funding it.

Asia and the US are trading two different AI stories

Nasdaq +2.13% and a record Dow close on big tech — Amazon passed $3 trillion — while Kospi fell −4.86% Monday and another −1.9% this morning, SK Hynix −6.90% and Samsung −7.52% leading it down, with MSCI Asia Pacific −0.6%. Indian IT rallied with the American side of that split, not the Asian one: Nifty IT +3%, TCS +4.57%, and Monday's breakout scans are thick with IT services. That leadership is real but borrowed from a complex that is bleeding two time zones away.

Prior close

Nifty 50

24,774.30

+390.70 · +1.60%

Range 24,515.15–24,774.30 — closed exactly on the high

Sensex

78,639.03

+544.39 · +0.70%

BSE mechanism unchanged — hence the gap to Nifty

Bank Nifty

58,247.95

+983.10 · +1.72%

Range 57,465.95–58,247.95 — also closed on the high

India VIX

11.93

+0.17 · +1.45%

Range 11.70–12.06 · near the lows into expiry AND tomorrow's MPC

Monday was the first session under NSE's Closing Auction Session for F&O stocks, and it produced a rare split: Nifty +1.60%, Sensex +0.70%. Both Nifty and Bank Nifty closed at the exact top of their day's range — 24,774.30 on a 24,515.15–24,774.30 session — which is the auction's fingerprint rather than a late buying wave. Advances led declines 2,705 to 1,496 and every major sectoral index except Nifty Media closed higher, so the demand underneath the rally is genuine; but a close printed precisely on the high, on the day the mechanism changed, is a number to treat with more care than usual.

Industry segments200 NSE large-caps >$3.5B · median per industry, n≥3

Leaders

Construction Materials+3.18%

n=4 · GRASIM +5.13%

Internet Software/Services+3.03%

n=3 · NAUKRI +3.47%

Information Technology Services+2.73%

n=7 · TCS +4.57%

Motor Vehicles+1.76%

n=9 · TMCV +3.59%

Life/Health Insurance+1.75%

n=5 · BAJAJFINSV +3.30%

Regional Banks+1.64%

n=4 · ICICIBANK +1.71%

Laggards

Pharmaceuticals: Other−0.91%

n=3 · AUROPHARMA −1.61%

Hospital/Nursing Management−0.53%

n=3 · APOLLOHOSP −1.53%

Investment Managers−0.36%

n=4 · HDFCAMC −0.58%

Pharmaceuticals: Major−0.17%

n=11 · TORNTPHARM −1.42%

Wireless Telecommunications−0.08%

n=3 · IDEA −1.15%

Steel+0.24%

n=7 · SAIL −2.38%

This is the crude trade expressed as a rotation, not a lift. Everything that leads — building materials, autos, banks, insurers, IT — is either an energy consumer, a rate-sensitive or a dollar earner; everything that lags is a defensive that gets sold to pay for them. Large-cap breadth was 156 up / 44 down with a median large-cap move of +1.16%, so the participation was broad rather than a handful of index heavyweights. The one caution: the weekly breadth work has Auto & Auto Ancillaries — CV improving to 100% above the 30-week line, but that measures Friday's closes, not this rotation.

This morning

GIFT Nifty

24,665

≈−109 vs the 24,774.30 auction close; flat vs the pre-auction market

Brent

$83.82

−4.68%

Iran talks resume

WTI

$79.60

−6.00%

Sharper than Brent

USDINR

95.38

Monday's level

Gold

$4,060

Spot · MCX above ₹1,43,500

US 10Y

4.70%

−5 bps

Off an 18-month high

GIFT Nifty 24,665 against an official close of 24,774.30 reads as −109, but against the ~24,650 the index was trading before the closing auction it is flat. Which of those two numbers the market decides to open from is the single most important thing to watch in the first fifteen minutes — and MCX crude is excluded from the tiles above because its last print predates the overnight Brent move and would contradict it.

Global

Dow +1.32% to 53,178 — a record close; S&P 500 +1.48%, Nasdaq +2.13%. Amazon passed $3 trillion.

Asia now

Kospi −1.9% with SK Hynix −6.90% and Samsung −7.52%; MSCI Asia Pacific −0.6%. Monday: Kospi −4.86%, Nikkei −1.12%.

Europe

Closed firmly higher, led by the DAX, CAC 40 and STOXX 50.

Rates

US 10Y 4.70%, −5 bps, retreating from an 18-month high ahead of Friday's US jobs report.

Commodities

Brent $83.82 (−4.68%), WTI $79.60 (−6.00%); spot gold above $4,060.

Currency

The dollar slipped below 99.5 on the DXY; USDINR near 95.38.

THE READ

The overnight is not one market, it is two. American big tech printed records while Asian memory and semis went through a second session of liquidation, and the gap between them is the widest it has been in weeks. India opens attached to the first group — its IT complex rallied on the same AI-order narrative — while sitting in the second group's time zone. The crude relief is the one input that unambiguously helps both.

Positioningindex derivatives

FII

Index futures

net short 1,50,816

▲ +22,297

Index calls

net short 1,28,530

▲ +55,995

Index puts

net long 4,33,395

▼ −20,375

Still carrying a large net short in index futures, but they covered 22,297 of it into the rally and bought back 55,995 of their short calls. That covering was fuel for Monday — and it is fuel already spent.

CLIENT

Index futures

net long 1,16,282

▼ −11,642

Index calls

net short 57,674

▼ −81,790

Index puts

net short 5,61,032

▲ +1,26,588

The important flip: clients went from net long index calls to net short 57,674, selling calls into a +1.60% day. They remain short 5,61,032 puts net — a naked book that is a cushion while the market rises and the squeeze fuel underneath it if it does not.

PRO

Index futures

net short 11,121

▼ −11,103

Index calls

net long 1,81,963

▲ +26,049

Index puts

net long 75,732

▼ −1,05,418

Flipped from flat to net short 11,121 in futures and cut long puts by 1,05,418 — less downside protection carried into an expiry, while adding to long calls.

DII

Index futures

net long 45,655

▲ +448

Index calls

net long 4,240

▼ −255

Index puts

net long 51,905

▼ −795

Barely moved. DII index positioning is a constant here, not a signal.

SMART MONEY

Convention: net = long − short, so a negative figure is a net SHORT and a positive delta means the net moved up — less short or more long. Read together, the engine of Monday's move was foreign covering in futures and calls, and the marginal seller into today's expiry is now the domestic client writing calls plus PRO turning net short futures. The buyer of last resort has changed hands.

FII cash · 3 Aug

+₹922.26 cr

cumulative —

DII cash · 3 Aug

+₹1,571.18 cr

cumulative —

Both sides net buyers. NSE's own session stamp on this pair is 03-Aug-2026 — the same session this note describes, so it is not the previous day's figure carried forward.

Levels 4 Aug expiry chain

Resistance

25,0001.19 cr of call OI — the next shelf of writing above the market

24,960Band cap — the upper edge of the ±0.75% the chain prices for today

24,800GAMMA PIN — 1.18 cr of call OI and where hedging flow is densest

Support

24,665GIFT-implied open — the pre-auction market's own level

24,600THE WALL — 1.58 cr of call OI, the heaviest on the board, now sitting BELOW spot

24,588Band floor

24,550Max pain — the expiry magnet, 224 points under the official close

24,383.60Friday's close — where this whole move started

24,200Put wall — 1.50 cr of put OI, the writers' floor

Gamma pin

24,800

Max pain

24,550

PCR (OI)

1.57

PCR (vol)

1.00

ATM straddle

185.75

Move priced

±0.75%

Band

24,589–24,960

ATM IV

32.8

25d skew

16.2

Today's calendar

World, macro & commodities — what's moving the tape

Ongoing

US–Iran talks under way after strikes were suspended

The single input driving crude. A constructive readout extends the de-rating; a breakdown reprices oil and Indian equities together, in that order.

Overnight

Brent −4.68% to $83.82, WTI −6.00% to $79.60

India imports its energy — this is the transmission channel behind Monday's leadership in autos, building materials and financials.

Overnight

Dow closes at a record; Nasdaq +2.13%, Amazon past $3 trillion

Supports the Indian IT complex, which took Monday's leadership on the same AI-order narrative.

Today

Kospi −1.9% today after −4.86% Monday; SK Hynix −6.90%, Samsung −7.52%

A second session of Asian semi liquidation running opposite to the US tape. So far contained to memory and Korea — if it spreads to the broader Asian bid it removes the cover under Indian IT.

Overnight

US 10Y at 4.70%, off an 18-month high

A falling term premium alongside falling crude is the friendliest possible combination for an importer running a rate-cut trade.

Fri 7

US jobs report

Lands after the Indian close on Friday, so it prices into next Monday's pre-open, not today's — but it is why the 10-year is drifting rather than trending this week.

Results due

Today

No board meetings filed with NSE for today

Genuinely empty rather than a missing feed — the exchange's earliest filing on file is tomorrow, when 100 companies report. Today's tape is macro and expiry, not earnings.

Corporate actions & stock watch

Today

BOSCHLTD ex-dividend ₹270 per share

The largest adjustment on the board today. The opening mark-down is arithmetic, not selling — do not read it as weakness in the first print.

Today

TCPLPACK ex-dividend ₹25; PCBL ₹4.50 interim; BALKRISIND ₹4 interim; CONCOR ₹1.60 interim

Same mechanical adjustment, smaller magnitudes. CONCOR and BALKRISIND are the two most likely to show up on a screener as false weakness.

Today

EMBASSY REIT ex-distribution ₹6.31 per unit

Mostly a return of capital — ₹5.14 of the ₹6.31 is repayment of SPV-level debt, so the unit price adjustment is larger than the income component implies.

Today

F&O ban list: NIL

No stock is in the ban period today, so position build-up is unrestricted across the F&O universe.

India macro & market mechanics

Today

Weekly Nifty expiry

Settlement lands with max pain at 24,550 and the heaviest call wall at 24,600 — both below the official close. The pull toward those strikes is the day's mechanical undertow.

15:15–15:35

Second session under NSE's Closing Auction Session

F&O stocks trade normally to 3:15 pm, then a call auction to 3:35 pm sets the close. On an expiry day this is the first time the new mechanism and settlement interact — treat the closing print as an unknown, not a forecastable level.

Wed 5, 10:00 IST

RBI MPC decision

The biggest India event in the window, and it lands DURING tomorrow's session, not after it. Consensus is a hold at 5.25% (68 of 72 economists). Today is the last full session to position ahead of it, which is part of why a VIX of 11.93 is worth distrusting.

Wed 5

100 companies report tomorrow

The earnings block lands on the same day as the MPC, the session after expiry — today's positioning is being set ahead of both.

The plan

IF 24,600 — the old call wall, now beneath the market → 24,800, the gamma pin, comes first, then the 24,960 band cap; 25,000 is where the next 1.19 cr of call OI sits

The bullish case is that Monday's move was real and the auction merely reported it loudly. The evidence for that is breadth — 2,705 advances to 1,496 declines, every sectoral index bar Media higher, 156 of 200 large-caps up — which an auction print cannot manufacture. Holding 24,600 on expiry day also keeps a squeeze mechanic alive: the heaviest call writers on the board are now underwater at 24,600 with 1.58 cr of OI, and clients added to short calls into strength. Above 24,800 the gamma pin stops being a magnet and starts being a chase.

IF 24,600 and the market accepts the pre-auction price as the real one → 24,588 band floor and 24,550 max pain come first, then 24,383.60 — Friday's close — with 24,200 and its 1.50 cr of put OI beneath that

The risk is not that the rally was fake, it is that 174 points of it were mechanical and today is the day the chain collects. Max pain at 24,550 sits 224 points under the official close, and on an expiry day that gap is a gravitational field rather than a forecast. The confirming tell would be a first print near 24,665 that fails to hold — the index accepting the pre-auction level as fair. Below 24,383.60 the entire four-day sequence is in question, and the client book short 5,61,032 puts stops being a cushion and becomes the accelerant.

The lesson

When the mechanism that sets a price changes, know which price you are actually trading against. Monday's screen said 24,774.30; the option chain, GIFT Nifty and every writer on the board said 24,650. Neither is wrong — but only one of them is the level your risk is measured from.