Ten stocks capped off the trading week, boasting whopping gains—with one notably more-than-doubling its share price—as investors cheered a flurry of company-specific developments that sparked buying appetite.
The stocks outperformed a sluggish performance on Wall Street, with both the Dow Jones and the tech-heavy Nasdaq down by 0.19 percent week-on-week. The S&P 500, on the other hand, dipped by 0.10 percent.
In this article, we name the 10 best-performing stocks week-on-week and detail the reasons behind their gains.
The stocks were chosen based on the percentage change in their closing prices between August 22 and 29, 2025.
To come up with the list, we considered the stocks with at least $2 billion in market capitalization and 5 million shares in trading volume.
A stock market trader. Photo by Tima Miroshnichenko on Pexels
10. Confluent Inc. (NASDAQ:CFLT)
Shares of Confluent Inc. (NASDAQ:CFLT) jumped by 11.6 percent week-on-week, with sentiment primarily bolstered by a broader market optimism over the increased possibility of an interest rate cut, while investors digested one of its counterparts’ impressive earnings performance.
During the past trading week, climbed by as much as 14 percent before trimming gains toward the end of Friday’s session, after its data analytics peer, MongoDB (NASDAQ:MDB) said it was able to narrow its net loss by 13.76 percent to $47 million from $54.5 million in the same period last year, on the back of a 23.7-percent increase in revenues to $591 million from $478 million.
MongoDB’s (NASDAQ:MDB) optimistic results spilled over to stocks of data analytics companies, on expectations of strong demand for their business models.
In other news, Confluent Inc. (NASDAQ:CFLT) said that its management is set to present at the Goldman Sachs Communacopia + Technology Conference on September 8, at 1 PM Eastern Time. Investors will closely watch out for cues from the company on business plans and outlooks.
9. Ambarella, Inc. (NASDAQ:AMBA)
Ambarella saw its share prices grow by 14.65 percent week-on-week to hit a new all-time high as investors cheered its highly optimistic outlook for the full fiscal period, supported by a stellar earnings performance in the second quarter.
On Friday alone, the company jumped as high as 32 percent to hit a new 52-week record high of $93.44, before trimming gains to end the day just up by 16.78 percent at $82.48 apiece.
In its updated report, Ambarella, Inc. (NASDAQ:AMBA) raised its full-year revenue growth outlook to a range of 31 to 35 percent to a midpoint of $379 million, as it expected a strong secular growth in the edge AI market. This compares with a 19 to 25 percent revenue growth outlook targeted previously.
“A variety of portable AI video applications have reached production status, and by the end of fiscal 2026, we expect to realize production shipments from our first robotic aerial drone win,” said Ambarella, Inc. (NASDAQ:AMBA) President and CEO Fermi Wang.
For the third quarter alone, Ambarella, Inc. (NASDAQ:AMBA) said it was targeting revenues between $100 million and $108 million.
On a year-on-year basis, the revenue midpoints for both the third quarter and the full fiscal period of 2026 would represent all-time records.
In the second quarter, the company narrowed its net loss by 42.69 percent to $19.99 million from $34.89 million in the same period last year. Revenues jumped by 49.9 percent to $95.5 million from $63.7 million year-on-year.
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