Wall Street took another slide on Wednesday, just two days into the new quarter, as disappointing employment data and a contraction in manufacturing activity fueled fears of a recession.

The Dow Jones Industrial Average dropped by around 525 points, or 1.97 percent, on Wednesday morning, wiping out all gains for the third quarter. The S&P 500 suffered a similar fate, falling 1.85 percent and erasing any yield for the last quarter. The tech-heavy Nasdaq lost 1.75 percent as Amazon, Apple, and Microsoft fell.

President Donald Trump blamed the Democrats for the market sell-off, tweeting that "impeachment nonsense" was driving down "the Stock Market, and your 401K’s."

Employment data from private payroll company ADP released Wednesday morning revealed job gains of just 135,000 for the month of September. While that number beat analyst expectations of 125,000, it brings the monthly average down to just 145,000 for 2019 — far below last year's monthly average of 214,000 positions added.

Following a rocky third quarter that saw markets parse ramped-up trade war rhetoric between China and the U.S., the sell-off continued into the fourth quarter. A key gauge of factory activity released Tuesday revealed the biggest slowdown in manufacturing output in a decade. Economists and investors have pointed to uncertainty around trade as a reason for supply chain disruption and stalled capital spending.

Friday's employment report from the Bureau of Labor Statistics will be closely watched for further indication of a manufacturing slowdown in terms of job losses in that sector.