8 Best Insider Trading Websites in 2023

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In this article, we will take a look at the 8 best insider trading websites in 2023. If you want to explore similar websites, you can also take a look at 3 Best Insider Trading Websites in 2023.

An insider is a person who has access to non-public or confidential information about a corporation. Insiders can include executives, board members, major shareholders, and other employees who have access to sensitive information that is not available to the public. Insider trading refers to the buying or selling of securities, such as stocks or bonds, based on material non-public information.

Insider trading is only illegal when an insider uses confidential information that is not available to the public to make a profit or avoid a loss by trading securities. Insiders are free to trade otherwise. Insider trading has proven to be one of the most underrated and successful stock market anomalies of all time. There is a significant body of academic literature that has identified correlations between insider trading and abnormal investment returns.

A Review of The Profitability of Insider Trading

In 1968, Professors James H. Lorie and Victor Niederhoffer conducted one of the earliest academic researches to determine the profitability of insider trading. Their paper employed a rigorous methodology and demonstrated a strong correlation between insider transactions and abnormal returns. When tracking the returns on insider purchases, they found that when the number of buyers was at least two more than the number of sellers, insiders could generate above-market returns over a six-month period. The same was the case for tracking the returns for insider selling.

In 1974, Wharton professor Jeffrey Jaffe conducted a research to identify a relationship between abnormal returns and insider transactions. He constructed a zero investment portfolio that was long in companies with more insider purchases and short in companies with more insider sales in a given month. Though his study did not find any abnormal returns, even after constraining the sample to only large transactions of at least $20,000, when Jaffe employed an intensive trading criteria he found a strong correlation between insider trading and anomalous returns. When there were at least three buyers and three sellers from each company to be included in the long and short portfolios, respectively, Jaffe found abnormal returns of 5.07% in the first eight months following the transactions. Even when he included each company in the portfolio two months after the transaction, he still found abnormal returns of 4.84% in the first eight months. Hence, Jaffe's conclusion was that outsiders can also make abnormal profits by mimicking insider activity.