The primary driver behind the massive upward trajectory and heightened intraday trading activity in PTC Inc. shares is the definitive announcement of an all-cash acquisition agreement with French industrial and energy management giant Schneider Electric. Under the terms of the deal, Schneider Electric will acquire the industrial software provider at a substantial premium to its prior closing valuation, implying an equity value of approximately $22.6 billion and an enterprise value of $23.7 billion. The transaction, which has received unanimous approval from both corporate boards, effectively re-anchors market pricing near the cash tender valuation as investors recalibrate their expectations around the transaction structure and expected…