  In this paper, I revisit Phillips, Wu and Yu's seminal 2011 paper on testing
for the dot-com bubble. I apply recent advancements of their methods to
individual Nasdaq stocks and use a novel specification for fundamentals. To
address a divide in the literature, I generate a detailed sectoral breakdown of
the dot-com bubble. I find that it comprised multiple overlapping episodes of
exuberance and that there were indeed two starting dates for internet
exuberance.
