Firstrade is an online brokerage known for its fee-free options trading. But it offers much more than that. Investors have access to zero-commission stocks and ETFs listed on the major U.S. exchanges, ...

Chris Davis is a Managing Editor on the Investing team. As a writer, he covered the stock market, investing strategies and investment accounts, and as a spokesperson, he appeared on NBC Bay Area and ...

Public will appeal to traders looking for low-cost options brokers and access to many types of assets. But customer support is limited, and the broker nickel-and-dimes non-Premium members for certain ...

Abstract: Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal propagation in wireless networks. By smartly tuning the signal reflection via a large number of ...