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Post-IB Brief

NIFTY Post-IB Brief (2026-09-18)

POST-IB BRIEF — NIFTY – Gapped up 64 pts (0.27%) into a partial gap: above yesterday’s value (23240-23310), inside its range. – IB is narrow — 74 pts, 39% of the 20-day ATR, about half yesterday’s IB — elevated breakout odds later. – Session high (23361) hit yesterday’s selling tail in the op

Friday, 18 September 2026·2 min read
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POST-IB BRIEF — NIFTY

  • Gapped up 64 pts (0.27%) into a partial gap: above yesterday’s value (23240-23310), inside its range.
  • IB is narrow — 74 pts, 39% of the 20-day ATR, about half yesterday’s IB — elevated breakout odds later.
  • Session high (23361) hit yesterday’s selling tail in the opening range and faded; unrevisited since.
  • TRAP WARNING: 23341-23364 already capped one test today — don’t chase a break there unconfirmed.

OPEN ASSESSMENT
Opened 23335, above yesterday’s value (23240-23310) but inside its range (23194-23364). Reads as a low-conviction Open Auction, not a drive: price ran to 23361 in the opening range, tagged yesterday’s selling tail, faded to 23287, now sits near 23319.

INITIAL BALANCE
23287-23361 = 74 pts, 39% of the 20-day ATR (188 pts) — narrow, under the ~40% line, about half yesterday’s 132-pt IB. No breakout either side yet; today’s high/low so far ARE the IB. A narrow base after a rejected upside test tilts odds toward expansion once one side gives.

VOLUME & OPTIONS CHECK
First-hour volume isn’t populated yet. Straddle decayed a mild 5% since open (224 to 214) — inconclusive on balance vs. trend. Combined IV (10.6) is flat versus yesterday’s close, in line with realized vol. Call and put walls (OI-based) both sit at 23300, under the market.

DEVELOPING DAY TYPE
Provisionally a b-Shape (selling early, balancing late, value building lower) at moderate confidence. The push higher lacked follow-through — day-timeframe so far, not OTF conviction, fitting two weeks of lower value migration and bearish VWAP/MA stacks. Price sits almost exactly on the weekly anchored VWAP (23321), compressed against today’s and two-day-ago’s anchors — coiled, unresolved.

TODAY’S PLAN
– LINE IN THE SAND: 23287 (today’s IB low).
– Above: fade-into-resistance stays live — capped into 23341-23364 unless 2+ periods accept beyond 23364, reopening 23448+.
– Below: confirms the gap-up rejection — fade toward the POC (23270), then value low (23240) and the 7-day balance floor (23200).

KEY LEVELS
Level | Type | Why it matters
23364 | Selling Tail | Capped today’s test
23361 | IB High | Today’s high so far
23320 | Naked POC | Untested, on the weekly VWAP
23300 | Options Wall | Call & put OI concentrated
23287 | IB Low | Line in the sand
23270 | POC | Fade target below the IB
23200 | Balance Low | Floor of active 7-day balance

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