In particular, the tech-heavy Nasdaq Composite has suffered a rough start to the year. As of this writing, the index has dropped about 3.8% year to date and about 7.5% off its all-time high. That means the index is approaching a technical correction -- a drawdown of 10% from recent highs.

President Tal Cohen is proposing a 24-hour, five-days-a-week schedule, which would represent a seismic shift for the platform. Trading could soon be very different on the Nasdaq stock market if the stock exchange gets its way.