What Sent Guardant Health Stock Higher?
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Guardant Health (GH) stock rose 5.2% on Monday, November 9, 2026, while the S&P 500 gained 2.3%. The company made no announcement or filing that day. On a day when Wall Street rebounded from a steep sell-off in technology stocks the week before, all five companies on its peer list rose too. Guardant’s last news of its own was its third-quarter report four days earlier. So what did Guardant tell you about its business on November 5?
What Guardant Reported On November 5
Guardant said its third-quarter revenue grew 36% from a year earlier to $361 million. The fastest growth came from Shield, its blood test for colorectal cancer screening, where revenue rose 180% to $68 million.
Management raised its full-year 2026 revenue outlook to a range of $1.36 billion to $1.37 billion, putting that at growth of about 38% to 40%, up from the 36% to 38% it had expected before.
Guardant also raised its outlook for cash burn. Free cash flow burn is the cash a business uses up rather than brings in, and the company now expects $205 million to $220 million of it in 2026, against $195 million to $205 million before. Management tied the change to a temporary delay by CMS in processing claims for its new Guardant360 Liquid CDx test, which moves $10 million to $15 million of payments into the first half of 2027. Leaving out that delay, management said its cash outlook was unchanged.
Was Monday’s Gain Guardant’s Own Or Market-Wide?
Guardant rose along with its peers and the wider market. The peers’ gains on Monday ran from 1.3% for Caris Life Sciences to 11.0% for Tempus AI. The Nasdaq Composite rose 2.7%, and XLV, the fund that tracks the health care sector, gained 1.9%.
Guardant still gained more than both the S&P 500 and the health care sector fund that day.
Where Guardant Stock Stands After Monday
A rise this size is not rare for Guardant. The stock had 12 sessions in the prior 365 days with a rise at least this large. Its most recent move this big in either direction was a 9.0% fall on November 5.
Over the past twelve months, the stock returned 65.0%, against 13.7% for the S&P 500. Nearly all of that came in the past six months, which returned 64.2%, while the past month brought a 5.2% loss. Monday’s close still sat below the stock’s highest close of the past year, $187.22 on October 5, and well above its lowest, $78.60 on April 10.
You pay 16.7 times Guardant’s sales for the stock, against 3.1 times for the S&P 500, for a company that still reports an operating loss. Guardant is expected to report its fourth-quarter 2026 results in February 2027. Its free cash flow burn for the full year, the figure management raised on November 5, is the one to watch.
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