How one tweet wreaked havoc on the stock market
Amid a morning of pandemonium on Wall Street, a popular news aggregator on X, known as Walter Bloomberg, posted a false report declaring that President Trump was considering a 90-day pause on his controversial tariff proposal.
This news was not true, and yet, index funds like the Dow Jones whipsawed — rapidly rising, before reversing course minutes later. This type of volatility is more meaningful than a stock’s typical rise and fall throughout any given day, which is why the false report garnered so much attention.
Though the Walter Bloomberg account is not affiliated with any news organization and has no connection to Bloomberg News, the account has long been considered a reliable source of tech and business news. Rather than writing its own posts, Walter Bloomberg publicly posts news headlines as they hit the Bloomberg Terminal.
The Bloomberg Terminal is an expensive subscription-only service that financial professionals use for real-time market data, which includes breaking news headlines. Sometimes, the headlines from outlets like CNBC and Bloomberg hit the Terminal before the stories are published online, making accounts like Walter Bloomberg a useful follow for quick news.
On Monday, a series of reporting errors from CNBC and Reuters, which were then amplified by the Walter Bloomberg account on X, appears to have directly affected the stock market during an already chaotic day.
The headline posted by Walter Bloomberg, which was deleted since it is not true, said: “HASSETT: TRUMP IS CONSIDERING A 90-DAY PAUSE IN TARIFFS FOR ALL COUNTRIES EXCEPT CHINA.”
The White House’s rapid response team quote-tweeted the now-deleted Walter Bloomberg post and denied that Kevin Hassett, Trump’s director of the National Economic Council, made these statements.
How Donald Trump’s tweets influenced financial markets
Newly-elected and former US President Donald Trump’s tweets had significant power to move markets during his first presidency. Research shows specific topics could trigger market volatility and create trading opportunities.
Source: Adobe images
Chief Market Analyst
Article publication date: 2024-11-07T14:11:03+0000
The power of presidential tweets on market movement
Trump’s social media posts demonstrated unprecedented influence over financial markets during his presidency, with research analysing over 8,000 tweets showing measurable impacts on major indices like the S&P 500.
The immediate effect of Trump’s market-moving tweets typically lasted around 30 minutes, creating short-term opportunities for active traders to capitalise on the volatility. Analysis shows these posts could trigger significant price swings across multiple asset classes.
Social media’s growing influence on markets has transformed how traders approach their strategies, with many now incorporating digital sentiment analysis into their decision-making process. This represents a fundamental shift in how information flows through financial markets.
Presidential communications have always moved markets, but Trump’s direct-to-market style via Twitter (X) created a new paradigm for traders to navigate. The immediacy and unpredictability of these messages posed both risks and opportunities.
Trade war tweets and their market impact
Tweets containing keywords like “tariff” or “trade war” had particularly strong effects on market sentiment, often leading to immediate declines in the S&P 500 and increased trading volumes.
The research shows that trade-related tweets frequently triggered moves in forex markets, especially for USD/CNH and other Asian currency pairs. These currency fluctuations reflected broader market concerns about global trade tensions.
During periods of heightened US-China trade tensions, Trump’s tweets could spark volatility in commodities markets, particularly affecting gold prices as investors sought safe-haven assets.
The impact often extended beyond US markets, with significant effects seen in Asian indices like the Hang Seng, demonstrating the global ripple effects of presidential social media communications.
Trading strategies based on presidential tweets
Research indicates that implementing a strategic approach to Trump’s tweets could have outperformed traditional buy-and-hold strategies. The key was quick reaction times and understanding which topics were most likely to move markets.
A basic strategy of selling the S&P 500 for 75 minutes following trade war-related tweets before buying back in showed promising results. However, successful execution required robust risk management.
Traders using this approach needed to maintain strict discipline with their stop losses and position sizing, as market reactions could be unpredictable and volatile.
The strategy’s success highlighted how social media monitoring could be integrated into modern trading approaches, though it required careful consideration of risk-reward ratios.
Market volatility and volume analysis
The Volatility Index (VIX), often called the fear gauge, showed consistent spikes following certain categories of presidential tweets. This created opportunities for traders using volatility trading strategies.
Trading volumes typically increased significantly in the 30 minutes following market-moving tweets, indicating heightened activity across both retail and institutional traders. This surge in volume often preceded major price moves.
Analysis showed that market reactions became more measured over time as traders adapted to the communication style. However, certain topics maintained their ability to trigger significant market responses throughout the presidency.
Volume analysis proved crucial for traders trying to validate the significance of market moves following presidential tweets, helping distinguish between minor fluctuations and more substantial trends.
Lessons for modern traders
Today’s traders must recognise social media’s growing influence on market movements, whether from political figures or other influential sources. This requires developing new skills in digital sentiment analysis.
Successful trading strategies now often incorporate real-time news monitoring and quick reaction capabilities, though this should always be balanced with thorough technical and fundamental analysis.
Risk management becomes even more critical in an era of social media-driven market moves. Traders need to consider using demo accounts to test strategies before trading real money.
Understanding how different asset classes react to various types of news can help traders build more robust portfolios and trading strategies for the modern market environment.
Now that Trump is set to become president once again, traders need to make sure they are prepared for the return of such volatility.
How to trade market-moving news
1. Research and understand the relationship between news events and market movements
2. Choose whether you want to trade or invest
4. Set up news alerts and monitoring systems
5. Place your trade with appropriate risk management
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Becca Cattlin, Publication date : 2019-01-17T17:36:00+0000
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