10 Big Names With Explosive Gains That Investors Can’t Ignore

Ten companies soared by double- and triple-digits last week, outperforming Wall Street’s three major indices, thanks to a broader investor optimism and company-specific developments that sparked buying appetite.

Meanwhile, the Dow Jones dipped by 15 percent week-on-week; the S&P 500 decreased by 0.31 percent; and the tech-heavy Nasdaq dropped by 0.65 percent.

In this article, we focus on the 10 stocks that led last week’s performance to help you decide whether it is time to take profits or continue loading portfolios.

To come up with the list, we focused exclusively on mid-cap stocks with more than $2 billion in market capitalization and 5 million shares in trading volume.

The stocks were chosen based on their gains between September 19 and 26, 2025.

Photo by Tima Miroshnichenko on Pexels

10. First Majestic Silver Corp. (NYSE:AG)

First Majestic Silver Corp. (NYSE:AG) grew by 14.3 percent week-on-week, as investors poured funds into mining companies after the latest US inflation rate figures solidified hopes for more interest rate cuts.

On Friday, the Commerce Department announced that the personal consumption expenditures index posted a 0.3 percent gain in August, bringing the annual headline inflation rate to 2.7 percent.

Headline inflation rate grew slightly from 2.6 percent in July, but remained within economists’ expectations of 2.8 percent.

The latest figures strengthened hopes that the US central bank would continue lowering rates toward the end of the year, sparking rosy prospects for precious metals like silver and gold.

Lower interest rates tend to weaken the US dollar, making gold and silver much cheaper to foreign investors.

Amid optimism, First Majestic Silver Corp. (NYSE:AG) also hit its highest 52-week price of $12.67 before slight profit-taking persisted toward the end of the week.

9. Endeavour Silver Corp. (NYSE:EXK)

Endeavour Silver jumped by 15.38 percent week-on-week to hit a new all-time high as investor funds shifted to mining companies following the metal’s rally to a fresh 14-year record.

During the week, Endeavour Silver Corp. (NYSE:EXK) touched its highest 52-week price of $8.21 before trimming gains to end Friday’s trading at $7.80 apiece.

Last week, the spot prices of silver grew to $46, its highest level in 14 years, as investors turned optimistic that the US central bank would implement more interest rate cuts by the end of the year.

Lower rates typically benefit precious metals like silver and gold, as interest rate cuts tend to weaken the US dollar, making the dollar-denominated metals much cheaper to foreign investors.

Endeavour Silver Corp. (NYSE:EXK) is one of the listed mining firms based in Canada, focusing on silver production. In the first six months of the year, it was able to produce 1.48 million ounces of silver and 7,755 ounces of gold for 2.5 million ounces of silver equivalent.

It also realized $85.3 million from the sale of 1.45 million oz of silver and 7,706 oz of gold, leading to a 46 percent increase in revenues from operations as compared with the same period last year.