The underlying value of a company can diverge from its valuation. While obviously this happened when they pitched a $50bn valuation, it could also be happening

The underlying value of a company can diverge from its valuation. While obviously this happened when they pitched a $50bn valuation, it could also be happening here. IE Softbank thinks the value is way higher than 8Bn but forced a low valuation as to buy up as much stock as possible.