Hewlett-Packard shares have fallen as much as 14% after it announced an $8.8bn writedown relating to its acquisition of Autonomy.
GLG's technology fund managers Philip Pearson and Anthony Burton have been adding substantially to their position in US giant Apple after a brutal sell-off recently saw it shed over 20% of its value.
The US technology sector has been "crushed" in recent weeks but remains on course for long-term gains, managers have insisted.
Apple, the world's largest company, revealed profits in the fourth quarter missed analysts' estimates, prompting a share price drop of 1.5% in after-hours trading.
Fidelity's new hire Jeremy Podger has backed Google as one of several changes to the Global Special Situations fund, in spite of the sell-off following the tech giant's bungled Q3 earnings release.
Shares in Google closed down 8% after the tech giant's third quarter results - revealing a 20% drop in profits - were mistakenly released ahead of the US market close.
Lindsell Train co-founder Nick Train believes the negative sentiment surrounding equities has been overstated, and argues equities are instead in bull market territory.
Investors should snap up bargains in US healthcare, technology and financial stocks which offer better value than any time over the past 60 years, Legg Mason's chief investment officer Sam Peters has said.
Internet search giant Google has become bigger than Microsoft in terms of market cap after its shares surged 30% in the last quarter.