The Dot-Com Bubble vs. Black Monday 1987
What They Share
Both were major U.S. stock market events not directly rooted in a banking crisis, and both followed periods of strong investor enthusiasm outrunning fundamentals.
Where They Differ
The dot-com bust unfolded over roughly two and a half years, as speculative valuations gradually corrected. Black Monday, by contrast, was a single catastrophic trading day (a 22.6% drop) followed by a comparatively fast recovery — a sharp shock rather than a slow deflation.