The Nasdaq's recent surge is drawing comparisons to the dot-com bubble of 1999, raising concerns about a potential stock market selloff. BTIG's Jonathan Krinsky highlights similarities between current market trends and those preceding the 2000 crash. This includes rapid growth in tech stocks and high valuations. While not a guaranteed predictor, the historical parallel serves as a cautionary signal for investors to exercise prudence and consider potential risks in the current market environment. The comparison suggests a need for careful analysis and risk management to avoid potential losses.