Do these record highs mean the market is in a bubble? Here’s what we know about this economic movement. All good things tend to come to an end — or in the case of a market bubble, what floats up must come down. Some financial experts are suspicious of how long the stock market highs of the past few months will last. After the dramatic market losses in March 2020, many U.S. stock market indexes have sustained or surpassed records. Because of these highs, some analysts have claimed the market is currently experiencing a bubble. ... See more