Pattern Detail

Outside Day

How often the close direction of an engulfing session carries through to the next day.

Total Outside Days

501

Engulfing sessions in NQ over the sample period

Overall Continuation

48.7%

Next session closed in the same direction as the trigger close

Sample Range

1d

2008-01-02 to 2026-02-24

Direction Breakdown

Up Close

Outside days
199
Continued
111
Continuation rate
55.8%
Avg next move
+0.07%

Down Close

Outside days
302
Continued
133
Continuation rate
44.0%
Avg next move
-0.09%

Avg next move is signed in the trigger close direction. Positive = continuation tends to win on average; negative = reversion does.

Recent Outside Days (20)

Date Trigger Close Continued Next Move
Feb 20, 2026 Up No -1.22%
Feb 17, 2026 Up Yes +0.73%
Feb 11, 2026 Down Yes +2.04%
Feb 3, 2026 Down Yes +1.77%
Feb 2, 2026 Up No -1.59%
Jan 20, 2026 Down No -1.31%
Jan 2, 2026 Down No -0.79%
Dec 17, 2025 Down No -1.45%
Dec 10, 2025 Up No -0.33%
Nov 20, 2025 Down No -0.72%
Oct 16, 2025 Down No -0.64%
Oct 10, 2025 Down No -2.12%
Oct 7, 2025 Down No -1.14%
Sep 9, 2025 Up Yes +0.03%
Jul 31, 2025 Down Yes +2.03%
Jul 29, 2025 Down No -0.12%
Jul 14, 2025 Up Yes +0.07%
Jul 7, 2025 Down No -0.03%
Jun 13, 2025 Down No -1.41%
Jun 10, 2025 Up No -0.35%

Detection scan: NQ 1d · 2008-01-02 to 2026-02-24 · generated Apr 26, 2026

What this pattern measures

An outside day is a session whose RTH high is above the prior session’s high AND whose RTH low is below the prior session’s low. The session swallows the previous range — a wide bar that took out both the prior high and low.

Definitions used on this page:

  • Sessions are aggregated from RTH bars only (08:30 to 15:00 Central Time for CME equity index futures).
  • An outside day is classified by its own close direction: up close if the session closed above its open, down close otherwise.
  • Continuation = the next session’s close moved in the same direction as the trigger close (next close higher for up-close trigger, lower for down-close trigger).

Why it matters

Outside days are interpreted differently than inside days. Where inside days suggest pent-up energy that breaks one way or the other, outside days have already broken both ways within the trigger session. The interesting question is whether the close direction of that wide bar tells you anything about the following session — is the engulfing bar a trend bar or a temporary dislocation?

How to read the numbers

  • Continuation rate is the share of outside days whose next session closed in the same direction as the trigger close.
  • Avg next move is the average size of the next session’s close move from the trigger close, signed in the trigger close direction. Positive average means continuation tends to win on average; negative means reversion does.

A continuation rate near 50% with a small average move means the trigger close direction carries little information about the next session. A skew tells you whether traders should fade or trail.

What’s not here

  • Multi-day continuation windows.
  • Conditioning on the size of the engulfing bar.
  • Whether the outside day occurred in a trend or chop regime.

Keep going

Explore this pattern further with live data.