Why Is PS International (PSIG) Stock Up 64% Today?

PS International (NASDAQ:PSIG) stock is taking off on Monday alongside heavy pre-market trading of the freight forwarding service company's shares. This has more than 16.9 million shares of PSIG stock changing hands as of this writing. That's already well above its daily average trading volume of about 639,000 shares. Investors will also keep in mind that the company's float is only 62,510 units. All of this movement comes despite a lack of news from PS International. There are no new press releases or fili ...