LONDON, May 20 (Reuters) - Hedge funds stuck to their

holdings in companies with strong fundamentals in April,

particularly technology and semiconductor stocks, according to a

report on Wednesday from data platform Hazeltree, in a month

when the S&P 500 jumped over 10%.

Here are the details about hedge fund positioning in

April:

* Among mega-cap stocks, Meta and Amazon.com ( AMZN )

experienced more than a 5% month-over-month increase in

the number of funds holding long positions, Hazeltree said

* Nvidia ( NVDA ) experienced a 4.5% decline, but remained a

favourite long in the semiconductor sector

* The share of companies in the Philadelphia Semiconductor

Index in which hedge funds hold net long positions rose to 57%

in April from 53% in March

* Crowding in the U.S. semiconductor sector remained most

pronounced on the long side in Nvidia ( NVDA ), followed by Broadcom ( AVGO )

and Lam Research ( LRCX )

* On the short side, ON Semiconductor was the most

crowded name, followed by Microchip Technology ( MCHP ) and

Monolithic Power Systems ( MPWR )