BlackRock just upped its stake in 4 US tech giants (AAPL, FB, HPQ, MSFT)

Thomson Reuters

BlackRock has upped its stake in some big-name tech companies.

The world's largest asset manager, with $4.5 trillion, now has a 5.6% stake in Facebook, a 5.6% stake in HP, a 5.7% stake in Apple, and a 5.6% stake in Microsoft, according to SEC filings published recently.

Apple's stock has taken a slide in recent months and is currently trading below $100. HP's stock is trading around $9.50.

Facebook, meanwhile, is up from a year ago and trading around $97, versus $77 last January.

Apple will release fourth-quarter earnings later on Tuesday.

We've reached out to BlackRock for comment.

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