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HVAC Gap and Gap Fill

Updated Nov 6, 2026, 2:04 AM ET · Gap = today's open vs the prior close
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On Nov 5 HVAC opened at $28.58, a gap down of $0.77 (2.6%) from the prior close of $29.35. The gap was not filled: the fill level is $29.35.
Best for: intradayHold: same dayPrice $26.80 · 15-min delayed
Gap−2.6%
Fill level29.35
Filled?No
Avg gap (10 days)1.6%

HVAC daily chart: gap fill level

2830323436Sep 25Oct 2Oct 9Oct 16Oct 23Oct 3029.35Gap fill (prior close) 29.3528.58Open 28.5826.93
- - - gap fill level (prior close)- - - open

Where HVAC sits in its zone

The delayed price $26.80 is below its daily zone ($32.40 – $34.24), 4.96 ATR under the bottom.

32.40 · bottom 25%middletop 25% · 34.24
  • Setups to watch: the zone broke. Watch for a reclaim back into the zone (false breakdown) or a continuation lower.
  • Prior move: HVAC moved down from $32.26 (the last daily swing) to $26.80, about 4.8 ATR, so the move is extended. Traders often watch the reversal first here.
  • Reversal check: a hammer or bullish engulfing candle near $32.40.
  • Latest daily candle (Nov 5): Bearish Marubozu (bearish).
  • Breakout check: RVOL above normal on the break (last day's RVOL: 2.7× on Nov 5).
  • Zone tests: price pushed above the zone top 3 times and fell back, and dipped below the bottom and recovered 2 times. Each test can weaken a zone.

Why gap matters

A gap shows news or orders that came in while the market was closed. Many traders watch whether price comes back to the prior close to "fill" the gap, or keeps running away from it.

How traders use it

  • Gap and go: a gap that holds above the premarket high (or below the low) often keeps running.
  • Gap fill: a gap that fades back toward the prior close; the fill level is the target traders watch.
  • Big gaps on news fill less often than small gaps on no news.

What happened over the last 10 days

  • Of the 10 gaps bigger than 0.3%, 2 filled the same day.
  • The average gap was 1.6%.
  • Round numbers nearby: $20.00, $25.00, $30.00.

Combined conditions

  • VWAP $27.41 is below the fill level.
  • The delayed price is below the daily zone: watch for a reclaim or a continuation lower.
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How to trade around HVAC's gap levels

1. Gap fill tradeIf HVAC moves back toward $29.35, that fill level is the first target traders watch; a reversal before it keeps the gap open.
2. Gap and goA gap that holds its first pullback and breaks the premarket low with RVOL is read as continuation.

For more setups and trading strategies, click here →

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HVAC gaps: last 10 days

DatePrior closeOpenGapFilled?
Nov 529.3528.58−2.6%No
Nov 431.1530.60−1.8%No
Nov 330.2731.19+3.1%No
Nov 230.3231.01+2.3%Yes
Oct 3031.8731.49−1.2%No
Oct 2932.1231.77−1.1%Yes
Oct 2831.2931.86+1.8%No
Oct 2730.5630.70+0.5%No
Oct 2629.9330.07+0.5%No
Oct 2330.3330.09−0.8%No

FAQ

Did HVAC gap up or down today?

On Nov 5 it gapped down 2.6% ($29.35 → $28.58).

On SEPT: see every gap drawn on your chart with its fill level. Try it free →
Did HVAC fill its gap?

No, it did not trade back to the prior close of $29.35.

On SEPT: get an alert when HVAC fills its gap. Try it free →
What is a gap fill?

When price moves back to the prior close after opening with a gap up or down.

On SEPT: screen for stocks filling their gap right now. Try it free →
How often does HVAC fill its gaps?

In the last 10 days, 2 of 10 gaps bigger than 0.3% filled the same day.

On SEPT: test gap-fill odds on years of real data. Try it free →
Do all gaps get filled?

No. Many small gaps fill, but big gaps on news can run for days without filling.

On SEPT: ask GOAX what is behind today's gap. Try it free →
What is gap and go?

A gap that keeps running in its direction after the open instead of filling.

On SEPT: build a gap-and-go alert with your own confirmation and entry conditions. Try it free →
Where is HVAC in its zone now?

Below its daily zone ($32.40 – $34.24), based on the delayed price.

On SEPT: see HVAC's zone position live and let GOAX alert you at the zone edge. Try it free →

Data: SEPT market data engine. Delayed data; real-time levels are on the SEPT platform. Times in Eastern Time. Educational information only, not investment advice. No odds or win rates are shown on this page.