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Worst Stock News November 2023 - Biggest Losers Ranking

Welcome to our list of the top 100 news stories ranked by their stock price impact for November 2023. Discover the worst performing news that caused the biggest losses.
Rankings include only NYSE and NASDAQ stocks with market cap ≥$5M.

Discover the worst performing stock news for November 2023. Our ranking shows the bottom 100 news stories that generated the biggest stock losses, helping you identify which news drove the most significant negative market movements.

Each news story is ranked by the stock's session performance around its announcement: the closing price of the measurement session versus the prior session's close. This shows which types of news coincide with the biggest declines and helps identify patterns in stock downturns.

How We Rank the Worst Stock News

Our monthly worst stock news ranking is based on each stock's close-to-close change in the trading session tied to the announcement. We pick the measurement session using market hours logic:

  • News before 4 PM ET: the same trading day's closing price versus the prior session's close
  • News after 4 PM ET: the next trading day's closing price versus the prior session's close
  • Weekend news: the next Monday's closing price versus the prior session's close

The measured move is the full session's change versus the prior close, so for intraday announcements part of the move can precede the news. Rankings show which announcements coincided with the largest session declines, not proven cause and effect.

worst news rankings

November 2023 Performance Statistics

Average Loss
-54.85%
Top 100 News
vs Oct Median
↓ 9.8%
Oct: -38.2%
Median Loss
-48.04%
Middle value
Top Gainer →
DDC
#1 Gain: 990.24%

Biggest Declines

#1 Biggest Decline PACW PACW -100.00% Banc of California Announces Completion of Transformational Merger with PacWest Bancorp and $400 Million Equity Raise
#2 PLM PLM -100.00% Glencore Completes Acquisition of PolyMet
#3 ARGO ARGO -100.00% Brookfield Reinsurance Completes $1.1 Billion Acquisition of Argo Group

Performance Distribution

Top 100 stocks ranked by loss
#1 Avg: -54.85% #100

Full Rankings

Ranked by session loss in the trading session of the news announcement
Rank
Symbol
Company Name
Loss %
News Title
Rankings based on each stock's close-to-close change in the trading session tied to the news announcement; part of an intraday move can precede the news.