Artificial intelligence is making it easier for Main Street investors to emulate the investment portfolios of Wall Street titans like Warren Buffett, Cathie Wood, and Ray Dalio.
“So-called mirrored trading is a strategy worth following, especially since the most successful investors such as Warren Buffett tend to hold concentrated portfolios with little turnover,” said David I. Kass, a finance professor at the University of Maryland, Robert H. Smith School of Business.
Still, it’s worth knowing what picks and strategies work and what don’t before mirroring the market’s top-performing portfolios. Here’s what investment experts advise keeping and discarding when tracking the market masters’ stock portfolios.
Follow the 13F filings
It’s relatively easy to track top investors’ portfolios by viewing their 13-F filings (SEC EDGAR) for each quarter.
“13-F filings can be a great place to source investment ideas,” said Asher Rogovy, chief investment officer at New York City-based Magnifina, LLC. “It can be intimidating to pick a portfolio from thousands of stocks. By seeing what legendary investors are holding, it’s possible to prescreen several ideas for further research.”
When browsing 13Fs, try to see when a position was established. “Don’t just look at the latest filing to copy a portfolio,” Rogavy said. “Many positions could be old and are no longer ripe for new investment.”
There’s a big caveat with 13-F reports, as they’re required to be filed with the SEC 45 days after the end of the quarter, and are then made available to the public.
“Even with modern screeners like WhaleWisdom or Tiburon AI offering near-instant access once filings drop, you’re still reacting to past trades,” said Sergey Ryzhavin, director of copy at Dubai-based B2Broker. “Reading 13F documents is a good source of ideas for market entries, but they are significantly delayed, so they are not signals for copying passively.”
Use mobile trading apps that make tracking easier
In the commercial space, AI-powered mobile market trading apps like Magnifi, TickerTags, and CloneMyPortfolio simplify portfolio-mimicking strategies and give investors a sturdy jumping-off point for tracking the moves of high-profile investors. They let users scan institutional investors’ quarterly 13F filings and create and manage portfolios that automatically adjust buy and sell positions immediately after market mavens like Buffett’s and Wood make a move.
Still, there are risks in relying too heavily on AI trading strategies. “So many AI models are based on patterns in text and words, but investing is a numbers game,” said Rogovy.
