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FFIV Gap and Gap Fill

Updated Nov 6, 2026, 2:02 AM ET · Gap = today's open vs the prior close
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On Nov 5 FFIV opened at $323.87, a gap down of $5.85 (1.8%) from the prior close of $329.72. The gap was not filled: the fill level is $329.72.
Best for: intradayHold: same dayPrice $316.35 · 15-min delayed
Gap−1.8%
Fill level329.72
Filled?No
Avg gap (10 days)1.6%

FFIV daily chart: gap fill level

300320340360380400420440460480Sep 25Oct 2Oct 9Oct 16Oct 23Oct 30329.72Gap fill (prior close) 329.72323.87Open 323.87311.74
- - - gap fill level (prior close)- - - open

Where FFIV sits in its zone

The delayed price $316.35 is above its daily zone ($285.00 – $303.98), 0.63 ATR over the top.

285.00 · bottom 25%middletop 25% · 303.98
  • Setups to watch: the zone broke to the upside. Watch for a retest of the zone top or a false breakout back inside.
  • Prior move: FFIV moved down from $322.61 (the last daily swing) to $316.35, about 0.3 ATR. The move is not stretched yet.
  • Reversal check: a shooting star or bearish engulfing candle near $303.98.
  • Latest daily candle (Nov 5): Three Inside Down (bearish).
  • Breakout check: RVOL above normal on the break (last day's RVOL: 1.4× on Nov 5). Next zone above: $334.01 – $356.26.
  • Zone tests: price pushed above the zone top 1 time and fell back, and dipped below the bottom and recovered 3 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 7 gaps bigger than 0.3%, 4 filled the same day.
  • The average gap was 1.6%.
  • Round numbers nearby: $310.00, $320.00, $330.00.

Combined conditions

  • VWAP $313.52 is below the fill level.
  • The delayed price is above the daily zone: watch for a retest or a false breakout.
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How to trade around FFIV's gap levels

1. Gap fill tradeIf FFIV moves back toward $329.72, 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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FFIV gaps: last 10 days

DatePrior closeOpenGapFilled?
Nov 5329.72323.87−1.8%No
Nov 4331.15333.67+0.8%Yes
Nov 3324.55324.06−0.2%Yes
Nov 2338.34339.91+0.5%Yes
Oct 30363.46354.58−2.4%No
Oct 29365.53360.01−1.5%Yes
Oct 28459.36420.51−8.5%No
Oct 27461.60461.45−0.0%Yes
Oct 26455.42458.33+0.6%Yes
Oct 23450.08449.04−0.2%Yes

FAQ

Did FFIV gap up or down today?

On Nov 5 it gapped down 1.8% ($329.72 → $323.87).

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

No, it did not trade back to the prior close of $329.72.

On SEPT: get an alert when FFIV 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 FFIV fill its gaps?

In the last 10 days, 4 of 7 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 FFIV in its zone now?

Above its daily zone ($285.00 – $303.98), based on the delayed price.

On SEPT: see FFIV'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.