Jefferies analysts upgraded SoftBank Group Corp (OTC: SFTBY ) to Buy from Hold, raising the price target on the stock on its U.S.-listed shares to $23.18 from $19.11 in a note to clients Friday. The analysts told investors that the company is a likely beneficiary of the ARM- NVDA links, and the risk-reward has flipped to favorable. "Earlier, we expressed a view that SBG stock will rally ahead of the ARM IPO later in the year," said the analysts. "But given market's fascination for semi-stocks, we think it makes sense to move early."