(Reuters) – Chipmaker Broadcom Inc’s shock bid to purchase software program firm CA Inc for $18.9 billion wiped off the identical quantity from its market worth on Thursday, with buyers and analysts struggling to discover a clear motive for the deal.

Citing an acquisition with no potential synergies, buyers drove the corporate’s shares down 19 % to $197.50 – their worst day ever. CA rose 18.5 % to $44.10.

Broadcom, which has mushroomed in worth by shopping for out rivals up to now decade’s surge in cell phone manufacturing, agreed on Wednesday to purchase mainframe software program firm CA for $44.50 per share in money, months after President Donald Trump blocked its $117 billion mega-merger with Qualcomm Inc.

Whereas some analysts stated the shift in sectoral focus may show one other masterstroke by Broadcom Chief Government Officer Hock Tan, many raised considerations a couple of deal that lowers Broadcom’s high line development to three % from 5 %.

“It’s probably the most weird, defocused, non-strategic acquisition of the final decade,” stated Eric Schiffer, chief govt of the Patriarch Group, a Los Angeles-based private-equity agency.

At the least two analysts downgraded the inventory, whereas two different analysts reduce their value targets. Brokerage B Riley was probably the most bearish with a value goal reduce of $63 to $245.

“What the Hock?” analysts from brokerage Evercore wrote in a observe. “We predict buyers will doubtless be upset at this deal, which appears extra monetary engineering/PE pushed than as a consequence of any strategic rationale.”

Broadcom’s famously formidable chief govt has constructed the corporate from a fledgling chipmaker to a worldwide powerhouse by way of a collection of huge offers, and is extensively revered by Wall Avenue for his enterprise acumen.

“A brand new and sudden infrastructure software program initiative appears more likely to create a multi-quarter share overhang,” wrote analyst Craig Ellis from B Riley.

Susquehanna analyst Christopher Rolland stated the foray into the software program business could have been pushed by an absence of viable choices within the semiconductor business and elevated regulatory scrutiny.

CA’s fundamental enterprise is promoting software program for giant, mainframe computer systems, through which it’s second solely to IBM.

However whereas that enterprise generates money movement of $10 billion a 12 months, its income development has been flat as extra prospects select cloud companies over old school .

“Whereas CA is a departure from Broadcom’s core semiconductor enterprise, it’s in keeping with its monitor document of buying out-of-favor, market leaders with excessive value constructions,” Jefferies analysts stated.

“Importantly, AVGO has persistently demonstrated its means to drive prices down and margins of its acquisitions up, typically measured in 1,000s of foundation factors,” they stated.

Some analysts speculated that Broadcom’s means to rein in prices would assist it use CA as a platform to construct a enterprise within the software program sector that merely offsets the dangers of the highly-competitive semiconductor enterprise.

“Administration is exhibiting its ambition to maneuver past silicon to be that of an Infrastructure Expertise firm,” Morgan Stanley analysts stated.

After the deal, the mixed firm would have roughly 71 % income from semiconductors and 28 % from software program.

“We predict many buyers could not prefer it – at the least initially – however this does open the door for a special approach to the story and additional improves AVGO’s capital return potential (we mannequin $10/shr dividend in F19) within the meantime,” UBS analyst Timothy Arcuri stated.

To view a graphic on Broadcom deal historical past beneath CEO Hock Tan, click on: reut.rs/2JmlC4e

This model of the story has been refiled to right the Emulex merchandise within the graphic.

FILE PHOTO: An indication to the campus places of work of chip maker Broadcom Ltd, who introduced on Monday an unsolicited bid to purchase peer Qualcomm Inc for $103 billion, is proven in Irvine, California, U.S., November 6, 2017. REUTERS/Mike Blake

Reporting by Sonam Rai and Vibhuti Sharma in Bengaluru; modifying by Patrick Graham, Bernard Orr