Under the terms of the agreement, which has been approved by the boards of directors of both companies, CA's shareholders will receive US$44.50 per share in cash, according to the announcement. This represents a premium of approximately 20% to the closing price of CA common stock on July 11, 2018, the last trading day prior to the transaction announcement, and a premium of approximately 23% to CA's volume-weighted average price (VWAP) for the last 30 trading days. The all-cash transaction represents an equity value of approximately US$18.9 billion, and an enterprise value of approximately US$18.4 billion.
CO also was mix of big number of software companies - https://en.wikipedia.org/wiki/CA_Technologies
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