In the ever-evolving landscape of financial markets, seasoned professionals seek novel strategies to gain an edge. Amid the rise of meme stocks and online investment communities, an essential question emerges: How can the scrutiny of accounting controversies through media analysis bolster portfolio risk management?
Given the significant influence of corporate controversies on stock prices, identifying them early becomes paramount in the realm of portfolio risk management. Two prominent examples of this phenomenon unfolded in 2020, centering on Wirecard AG and Luckin Coffee, where substantial accounting frauds came to light, sending shockwaves through the stock market.
Our inquiry revolves around the systematic underperformance of stocks entangled in accounting controversies discussed in the media. Leveraging our extensive experience in monitoring online investment discussions, we’ve noticed a certain wisdom in the collective insights of these communities. Particularly, online reports of corporate misconduct often serve as harbingers of impending stock price declines.
The Wirecard AG and Luckin Coffee Accounting Controversies
Amidst the tumultuous backdrop of COVID-19, 2020 bore witness to two financial spectacles—accounting fraud revelations at Wirecard AG and Luckin Coffee.
On January 30, 2019, the Financial Times published a report raising suspicions of “falsification of accounts” at Wirecard AG. Simultaneously, the renowned short-seller research firm, Muddy Waters, issued a damning report on Luckin Coffee on January 31, 2020.
Subsequent to these reports, and despite vehement company denials, online communities persisted in their investigations and reporting on the alleged misdeeds for months before stock prices ultimately crumbled.
Accounting fraud, like other forms of corporate misbehavior, qualifies as a “controversy.” Corporate controversies wield the power to sway stock prices, making their early detection and avoidance a critical tenet of prudent portfolio risk management. Notably, accounting fraud often arises due to lax management oversight or outright deception, placing it within the purview of Environmental, Social, and Governance (ESG) controversies.
In the accompanying graphic, the bright blue lines chart the prevalence of media coverage referencing accounting controversies at Wirecard, while the stock price trend unfolds below. It’s evident that despite an initial price dip following the Financial Times report, the stock remained surprisingly resilient until the company’s admission of missing €1.9 billion from its books on June 18, 2020.
Evaluating the Efficacy of Advance Media Warnings
The accounting scandals at Wirecard and Luckin Coffee left a lasting mark on the financial landscape. To ascertain if a discernible pattern extends across larger stock portfolios that remain under the radar, we embarked on an investigation. Our objective: to determine whether stocks associated with accounting controversies discussed in the media consistently underperform over time.
Our accounting controversies score for each company gauges the percentage of media references that allude to accounting irregularities, doubts, fraud, and related issues—akin to those encountered by Wirecard AG and Luckin Coffee.
In the ensuing study, we cast our net across all S&P 500 companies monthly. These companies were ranked based on their average media-derived accounting controversies score for the preceding month. The top 10 percent of companies with the highest accounting controversies scores were amalgamated into a portfolio, and we tracked the performance of this portfolio over the ensuing month. The graphic below illustrates the equity growth in this monthly rotation model.
Remarkably, the high accounting controversies portfolio consistently underperformed the remaining 90 percent of S&P 500 stocks by 2 percent annually. This outcome strongly suggests that specific controversies exert enduring effects on stock prices. As we delve further, numerous intriguing types of controversies await exploration. We invite you to reach out for a data trial to explore this fertile terrain.
Internally, we monitor over 1,000 types of corporate controversies. However, the breadth of this information exceeds the scope of this blog. In the forthcoming second part of this series, we will delve into a more comprehensive discovery—the predictive value of an aggregate score encompassing all corporate controversies in risk forecasting. Stay tuned for a deeper understanding of this critical facet of portfolio management.