Stocks that moved heavily or traded substantially Thursday:
Fastly Inc., down $33.48 to $89.70.
The cloud computing company trimmed its third-quarter revenue forecast.
United Airlines Holdings Inc., down $1.36 to $34.25.
The airline reported a big third-quarter loss as revenue plunged amid slumping demand.
Alcoa Corp., down 70 cents to $12.30.
The bauxite, alumina and aluminum products maker gave investors a disappointing forecast for some of its businesses.
Cars.com Inc., up $2.05 to $10.06.
The online automotive marketplace gave investors an encouraging revenue update for the third quarter.
Sleep Number Corp., up $6.58 to $64.75.
The seller of beds, mattresses and bedding products reported good third-quarter results.
Walgreens Boots Alliance Inc., up $1.73 to $37.64.
The largest U.S. drugstore chain's fiscal fourth-quarter profit beat analysts' forecasts.
Vertex Pharmaceuticals Inc., down $56.18 to $215.28.
The drug developer abandoned development of one of its potential genetic disorder treatments.
Charles Schwab Corp., up $1.91 to $39.03.
The financial services company's third-quarter profit and revenue beat Wall Street forecasts.
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