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Post-IB Brief

NIFTY Post-IB Brief (2026-08-18)

POST-IB BRIEF — NIFTY (10:20 IST) – Opened right at yesterday’s defended low (~24,224), tested up to 24,270, then reversed hard to a fresh low near 24,208 — that low shows a completed rejection while the test high above it does not. – The at-the-money straddle has collapsed 45% in barely an hou

Tuesday, 18 August 2026·2 min read
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POST-IB BRIEF — NIFTY (10:20 IST)

  • Opened right at yesterday’s defended low (~24,224), tested up to 24,270, then reversed hard to a fresh low near 24,208 — that low shows a completed rejection while the test high above it does not.
  • The at-the-money straddle has collapsed 45% in barely an hour (132 to 72 points) — a classic balance-day signature, even as the morning’s range extension points down.
  • Line in the sand is the opening-hour low, 24,211: hold it and today likely repairs back toward the 24,330 pin; lose it with real follow-through and the 24,137-24,187 support shelf is next.

OPEN & INITIAL BALANCE
NIFTY opened at 24,224 — on top of yesterday’s defended low and well under yesterday’s 24,270-24,350 value area. The first hour tested up to 24,270 before reversing and breaking down to 24,208, a narrow range (59 points, only about a third of the 20-day average true range) — the classic narrow-base setup that tips over. Yesterday’s eight-day balance floor at 24,227 has been pierced intraday for the first time this cycle.

VOLUME & OPTIONS
The real story is the options market: the morning straddle has fallen from 132 to 72 points, well past the threshold that usually signals a balance day, even though price alone looks like a breakdown. Implied volatility sits in a Normal regime (65th percentile) — still pricier than actual moves — while the call wall at 24,300 and put wall at 24,200 bracket today’s action almost exactly.

DEVELOPING DAY TYPE
This is shaping up as a long-liquidation break: a swift early decline with a thin upper test, more consistent with stale longs being flushed than fresh initiative selling. Today’s low already shows a completed rejection while today’s high near 24,270 does not (an unfinished top, likely revisited later) — both favor a repair attempt over a clean trend day. That said, each session’s own fair-value anchor has printed lower than the one before for three sessions running, keeping the broader backdrop lean-bearish.

TODAY’S PLAN
LINE IN THE SAND: 24,211 (the opening-hour low).
Above it: reclaiming 24,227 targets a rotation back to the 24,330 pin and the 24,352 volume center.
Below it, with real acceptance: the 24,137-24,187 support shelf and the 24,041-24,177 gap cushion are next.
TRAP WARNING: neither the straddle collapse nor today’s completed low support chasing the breakdown blind.

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