U.S. stocks wrapped up a shortened week on a high note, and if you were holding certain large-cap names, you might be feeling pretty good right now. A handful of stocks posted some seriously sharp gains, led by an electric vehicle maker, an aluminum giant, and a biotech firm.

Let's break down who won the week and, more importantly, why.

Topping the charts was VinFast Auto Ltd. (VFS), which rocketed 42.77% higher. The Vietnamese EV company is seeing strong momentum in its home market, but the real kicker for North American investors is news that Canadian rebates are making its VF 8 model more affordable and stoking demand. When government incentives line up with your product, that's a good week.

Not far behind was Alcoa Corporation (AA), with a solid 24.12% gain. This wasn't just about aluminum; it was about a broader sigh of relief in the commodities space. Shares of aluminum-related companies jumped as expectations grew for a swift conclusion to the ongoing conflicts in the Middle East. When traders think geopolitical tensions might ease, they often bet on industrial materials, and Alcoa rode that wave.

In third place for the week's big movers was SBA Communications Corporation (SBAC), which climbed 23.22%. The catalyst here was pure M&A speculation. A report suggested the company, which owns and operates wireless communications infrastructure, is exploring a potential sale. Nothing gets a stock moving like the possibility of a buyout.

The gains kept rolling down the list. Equinox Gold Corp. (EQX) jumped 20.98%, part of a broader rally in gold miners that we'll get to in a moment.

Regencell Bioscience Holdings Limited (RGC) increased 15.01%. The biotech company announced it entered into a sales agreement for up to $500 million of its shares under an at-the-market offering program. That's a significant capital raise, and the market took it as a sign of confidence or future plans, pushing the stock higher.

Other notable performers included Lumentum Holdings Inc. (LITE), up 16.64%. The tech hardware company's gain stood out amidst the commodity and EV frenzy.

Then there was the gold rush. AngloGold Ashanti PLC (AU) gained 18.93%, Coeur Mining, Inc. (CDE) jumped 18.42%, and Gold Fields Limited (GFI) increased 18.18%. When investors get nervous or seek hedges—or when broader commodity sentiment turns positive—gold miners often benefit in tandem.

Rounding out the top ten was TD SYNNEX Corporation (SNX), which jumped 18.67%. The IT distributor's gain suggests strength or optimism in the tech supply chain, a sector that's always worth watching for broader economic clues.

So, what's the story here? It was a week where specific catalysts—a rebate program, M&A rumors, a big capital raise—drove individual stocks, while a more macro theme of easing geopolitical fears gave a boost to entire sectors like commodities and gold. It's a good reminder that markets move on both company-specific news and big-picture sentiment, sometimes all at once. If any of these names are in your portfolio, you just had a very good few days.