Skip to main content
Sep 17, 2001

Post-9/11 Reopening

Markets reopened after 4 days. The Dow fell 684 points — the largest one-day point loss at that time. Fear gripped every trading floor.

-7.1%DJIA drop

Start Your Post-9/11 Reopening Adventure

You'll get $100,000.00 to invest starting Sep 17, 2001. Buy stocks at real historical prices and see how you'd do.

Pre-loaded with:LMTBARTXGDNOCJNJPGAAPLAMZNMSFTXOMWMTKOHDUNHJPMGEMCDPFEINTC
or

Jul 19, 2001Post-9/11 ReopeningNov 16, 2001
±60 trading days around the event

S&P 500 Around This Event

SPY · ±60 days
Jul 19Jul 24Jul 30Aug 2Aug 7Aug 13Aug 17Aug 23Aug 29Sep 4Sep 7Sep 19Sep 25Oct 1Oct 4Oct 9Oct 12Oct 18Oct 24Oct 29Nov 2Nov 7Nov 16$96$104$112$120$128
SPY Intraday Trading Activity

Open

$174.67

Close

$185.35

High

$187.07

Low

$172.32

Daily Change
+10.68 (6.11%)
$171$176$181$1890M0M0M0M0M09:3010:0010:3011:0011:30
  • volumeM
  • high
  • close
09:30 — 11:5530 of 78 candles
← Swipe to navigate →

Key Market Events

09:30 — Market Open
16:00 — Market Close

Circuit Breaker Levels

-7% Halt
-13% Halt
-20% Halt (Close for day)

Event Day Price

$104.30

Period High

$122.61

Period Low

$97.28

Period Change

-6.3%

What Happened Next?

1 Week Later

-11.6%

1 Year Later

-4.2%

Key Takeaway

Full recovery took until early 2003


“It’s human nature to do things in groups. This is extreme in markets. I’ve seen first hand large allocators who, as an organisation, seem to prefer losing money in a conventional way, than making money by themselves.”

“The market isn’t efficient or inefficient. That’s too simple. To me it’s just a thing, made up of players each of whom have different goals, different time horizons and different strategies.”

DS

David Steinberg

Founder, Marlowe

MK Time Machine

Build historical stock portfolios with real market data from 1970 to today. Explore how your picks would have performed through every major crisis.

© 2026 MK Time Machine. All rights reserved.

Historical data for educational purposes only. Not financial advice.