澳洲幸运5官方开奖结果体彩网

What Is the Einhorn Effect?

Einhorn Effect

Investopedia / Candra Huff

What Is the Einhorn Effect?

The term Einhorn effect refers to the sharp movement of a public company's share price in response to comments or trading activity by hedge fund manager David Einhorn. Einhorn is the presiden🌄t and co-founder of Greenlight C🥀apital.

The phenomenon usually applies to the drastic drop in 澳洲幸运5官方开奖结果体彩网:share prices immediately after Einhorn publicly shorts or bets against t🐬hat ﷽company’s stock. His comments may also affect share prices, whether positive or negative. In some cases, if investors expect to hear news about a company from Einhorn and don't, they often take it as a positive sign, and the stock price rises.

Key Takeaways

  • The Einhorn effect is the sharp movement of a public company's share price in response to comments or trading activity by noted investor David Einhorn.
  • Share prices drop if Einhorn publicly shorts or bets against a company's stock.
  • His reaction, or non-reaction, to company news has also led to movement in stock prices.

Understanding the Einhorn Effect

Einhorn founded his 澳洲幸运5官方开奖结果体彩网:hedge fund in 1996 when he was 27 with a significant investment from his parents. He increased the fund's 澳洲幸运5官方开奖结果体彩网:assets under management (AUM) from $900,000 to $7 billion between 1996 and 2018, with 澳洲幸运5官方开奖结果体彩网:average annual returns of nearly 15.4% during that time. In addition to its high returns, h🔴is hedge fund is known for its rigorous research and analy𓆏sis.

Investors started to take notice of his success and began turning to him as a guide for their 澳洲幸运5官方开奖结果体彩网:investment moves. This translated into the development of the Einhorn effect. As noted above, share priceꦓs generally respond to 🅘the positions Einhorn takes in companies. So if he bets against a certain company, its stock price plummets. He is known for making bold and seemingly unlikely bets that turn out to be correct, such as:

Einhorn's sway also reaches the market and 澳洲幸运5官方开奖结果体彩网:investors whenever he speaks (or doesn't) about certain companies. If he reacts negatively to 澳洲幸运5官方开奖结果体彩网:company news, it can have a similar impact on a company's share price. For instance, Einhorn criticized Chipotle in 2012 over its possible employment of undocumented workers and the competitive threat it faced from Taco Bell. This resulted in a 7% drop in Chipotle's share price within minutes of his analysis.

Fast Fact

Despite his reputation as a short seller, Einhorn’s hedge fund is usually long overal💯l.

The Einhorn Effect in Recent Years

Einhorn's investment effect waned from 2017 through 2020. His flagship fund returned only 1.6% in 2017, compared to 19.4% for the S&P 500. Einhorn explained what went wrong to 澳洲幸运5官方开奖结果体彩网:shareholders in his annual lette🧸r that year, saying the "biggest losers for the year were our short positions on the 'bubble basket.'"

Einhorn said he believed that Amazon (+56%), Athenahealth (+26%), Netflix (+55%), and Tesla (+46%) seemed to be priced with very little margin for error at the beginning of the year. But they failed to meet any of the fundamental expectations in 2017.

In July 2018, Greenlight's AUM dropped to $5.5 billion compared to 2014 when it was over $12 billion and In January 2019, Einhorn's fund reportedly lost 34% in the previous year. As of December 2020, the fund reportedly lost 34% in value since 2015.

However, as of August 2022, Greenlight garnered a positive 13.2% return for the first half of 2022, compared to a 20% decline for the S&P 500 index during the same period.

Example of the Einhorn Effect

The most famous🌄 example of the Einhorn effect was an 11% drop in the stock price of Allied Capital in 2012, a company that described itself as a business development firm. During his speech🔯, Einhorn:

Another example occurred in 2012 with crushed gravel and stone company Martin Marietta Materials after Einhorn recommended shorting the stock in a speech at the Ira W. Sohn Investment Research Conference. That same year, nutrition supplement company Herbalife felt the Einhorn effect after investors speculated he was shorting the stock based on questions he asked during an 澳洲幸运5官方开奖结果体彩网:earnings call.

Article Sources
Investopedia requires writers to use primary sources to support their work. These include white papers, government data, original reporting, and interviews with industry experts. We also reference original research from other reputable publishers where appropriate. You can learn more about the standards we follow in producing accurate, unbiased content in our editorial policy.
  1. Forbes. "."

  2. The Street. "."

  3. U.S. Securities and Exchange Commission. "," Page 2.

  4. Value Walk. "."

  5. CNBC. "."

  6. New York Post. "."

  7. Reuters. "."

  8. The Wall Street Journal. "."

  9. CNBC. "."

  10. Bloomberg. "."

  11. Value Walk. "."

  12. Reuters. "."

  13. Business Insider. "."

Related Articles