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By Tal Sansani - October 1, 2018
The quarterly corporate earnings conference call is highly choreographed. Corporate executives frame financial results and expectations in a positive light—and with a carefully crafted statement. Investment analysts ask probing questions, attempting to read between the lines to glean new information to update their views of the company. A silent listener has recently joined these discussions and without asking a question, digests every word, takes meticulous notes and quickly generates a detailed report. Meet your new robo-analyst.
Thousands of earnings calls occur worldwide every quarter. It would take one person more than 700 days, working 24/7, to listen to a year's worth of calls. This is where the robo-analyst comes in. It doesn't get tired, get sick or go on vacation. It doesn't play favorites or have pet peeves. It provides intelligent, data-driven analysis in mere seconds.
Artificial intelligence (AI) is changing the investment management industry and helping investors make better decisions. The emergence of the robo-analyst is just one example of this larger trend and signifies a natural evolution and convergence of data, technology and investment competition. American Century Investments® robo-analyst sifts through conference call transcripts, using natural language processing (NLP) and psycholinguistics to analyze the nuanced speaking patterns of management that may signal underlying challenges within the company.
An early iteration of our model sought mainly to determine if company management was optimistic or pessimistic. It captured what was being said, but not how. For example, what if corporate executives were exaggerating? The next step was to train the model to process information more like a discerning human, reading between the lines and identifying subtle forms of deception.
First, we had to identify the patterns of deception, which we did not find in traditional financial literature. Grounded in fields like psychology and computational linguistics, our research team identified four key signals that consistently stood out across variety of contexts. They can be seen in situations ranging from children lying to their parents to corporate executives trying to placate their boards of directors.
Suspicious communication patterns from corporate executives have important investment implications. We have years of empirical evidence suggesting that management's candor reflects its leadership values and sends a meaningful signal about the company's underlying health. Communication quality also affects the way investors act upon information, impacting near-term price movements in meaningful and predictable ways. Longer term, poor communication patterns may also raise questions about corporate governance and cause investors to lose trust.
Big Data and AI enable investors to detect meaningful relationships across large volumes of increasingly complex data sources. The robo-analyst model benefits from an unbiased approach and immense scale. Human analysts may be more skilled at analyzing a small set of companies, but machines can systematically and objectively examine thousands at a time. We view these two stock-picking perspectives—the carefully discerning human analyst and the trained, data-driven robo-analyst—as complementary forces. Each provides crucial insight that helps us make better decisions that benefit our clients.
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Investment return and principal value of security investments will fluctuate. The value at the time of redemption may be more or less than the original cost. Past performance is no guarantee of future results.
The opinions expressed are those of American Century Investments (or the portfolio manager) and are no guarantee of the future performance of any American Century Investments' portfolio. This material has been prepared for educational purposes only. It is not intended to provide, and should not be relied upon for, investment, accounting, legal or tax advice.