The Model Room · MR-039
THE MODEL SOLD SEVENTEEN BILLION IN NINE MINUTES. THE EXCHANGE STOPPED PRINTING TICKETS. HE KEPT A CARBON COPY.
I have the carbon copy. On October 19, 1987, a sell order for nine million shares hit the market, not from a person but from a model, erasing $500 billion in value in hours. The market's crash was triggered by a failure of the portfolio insurance strategy, exacerbated by automated trading.
Case Assets
The Case Debrief is free to view. Full Case Study, Teaching Notes, Slide Deck, Discussion Guide, and Assessment are available with a Premium subscription.
Brief the Board
PREMIUM
🔒 Unlock
Learn the Case
FREE — included
Study the Case
PREMIUM
🔒 Unlock
Teach the Case
PREMIUM
🔒 Unlock
Present the Case
PREMIUM
🔒 Unlock
Run a Team Discussion
PREMIUM
🔒 Unlock
Test Your Judgement
PREMIUM
🔒 Unlock
Watch the Full Episode
The complete cinematic audio documentary — The Model Room
Unlock the Full Case Library
Get every Case Study, Slide Deck, Teaching Notes, Discussion Guide, and Assessment — across a growing library of business cases.
View Pricing →