Stocks that moved heavily or traded substantially on Wednesday:

Walt Disney Co., up $10.32 to $127.61.

The entertainment conglomerate reported earnings that didn’t fall as much as Wall Street had feared.

Teladoc Health Inc., down $47.41 to $202.01.

The telemedicine provider will buy Livongo Health for more than $18 billion.

Nikola Corp., down $3.81 to $35.03.

The electric vehicle maker, whose stock has more than doubled since April, reported a wider loss than analysts were expecting.

Monster Beverage Corp., up $5.09 to $83.10.

The energy drink maker reported earnings for its latest quarter that easily beat analysts’ estimates.

Novavax Inc., up $16.32 to $173.49.

The biotech company reported data on its COVID-19 vaccine candidate. Analysts called it encouraging but cautioned against over-interpreting the data.

Prudential Financial Inc., up $3.92 to $67.20.

The financial services company reported earnings and revenue well ahead of what Wall Street analysts were expecting.

Match Group Inc., up $13.14 to $120.71.

The online dating company reported results that came in well ahead of estimates.

Fiverr International Lt., up $18.65 to $122.87.

The online marketplace for freelance services surprised investors with results that were far better than expected.