Shares of Sphere 3D Corp. /zigman2/quotes/208465717/composite ANY +3.88% tumbled 26.6% on heavy volume of 35.4 million shares in morning trading Friday, to pull back from a 3 1/2-year high, after the computing, storage and networking technologies company announced the pricing of a $192.1 million direct offering of common stock and warrants. The company said before the opening bell that the offering to institutional investors to buy one common share and one-half warrant to buy one common share priced at $8.50 each. The company said it will use the proceeds of the offering in part to fund the previously announced purchase of bitcoin mining machines. The offering takes advantage of the stock's recent rally. It soared 41.8% on Thursday to the highest close since March 2018, and had blasted 173.3% higher since the announcing of the purchase of bitcoin mining machines through Thursday. It has now rallied 382.5% year to date, while bitcoin has climbed 75.0% and the S&P 500 /zigman2/quotes/210599714/realtime SPX -0.58% has gained 20.7%.