Canada's benchmark stock index took a hit on Thursday, falling 0.75% as a sharp drop in gold prices weighed on mining shares. At the same time, investors were digesting the surprise departure of Nvidia CEO Jensen Huang, a move that sent ripples through global technology markets and left traders reassessing their exposure to artificial intelligence plays.
The S&P/TSX Composite closed down 274.53 points at 36,137.19. The materials sector, which is heavily weighted in the index, fell 3.2%, more than offsetting a 0.8% gain in energy stocks. Gold prices slid 2.8%, a move that often hits Canadian miners hard given the country's large gold mining industry.
Why gold matters to the TSX
Canada's main stock index is unique among developed markets because of its heavy reliance on natural resources. Materials—including gold, copper, and other metals—make up a significant chunk of the index's value. When gold prices fall, it's not just one company that suffers; the entire sector can drag the index lower.
Thursday's drop in gold came amid broader market uncertainty, as investors weighed the implications of Nvidia's leadership change. Gold is often seen as a safe-haven asset, but it can also be sensitive to shifts in investor sentiment and expectations about interest rates. A sudden move like this can trigger selling in mining stocks, which are often leveraged to commodity prices.
Nvidia's CEO exit rattles AI trades
Beyond the mining slump, the day's biggest story was the departure of Jensen Huang, the long-time CEO of Nvidia, the world's most valuable chipmaker. Huang's exit—amid reports of personal misconduct—sent shockwaves through the AI trade, a sector that has been a major driver of market gains over the past year.
The news is a stark reminder that the AI boom is heavily concentrated in a few key names. When the person most associated with a company's strategy leaves, investors often cut their exposure first and ask questions later. That can hit companies seen as tightly tied to one roadmap, even if the underlying demand for AI hardware continues to grow.
But money doesn't have to leave the theme entirely. Analyst Michael Dehal at Raymond James argued that rivals Broadcom and Advanced Micro Devices (AMD) could pick up market share in the wake of Nvidia's turmoil. That helps explain why some pockets of Canadian tech held up despite the broader selloff.
Electronics manufacturer Celestica rose 4.8% on the day, and the TSX tech group gained 0.8%. Celestica, which makes components for data centers and other hardware, is seen as a supplier to multiple big tech companies, not just Nvidia. That diversification makes it less vulnerable to a single company's leadership change.
What it means for investors
For everyday investors, Thursday's action offers a lesson in how AI exposure can shift after a key-person shock. When the market loses confidence in a single company's leadership, the first move is often to shrink the most crowded positions—not to abandon the broader spending trend. That creates a substitution effect: investors look for other chip ecosystems that could win share, and for suppliers that can serve several big customers rather than just one.
That's why the same session that knocked the TSX lower still rewarded Celestica. As a picks-and-shovels supplier to multiple hardware primes, it can be viewed as a more diversified way to track AI data-center spending than names whose fortunes depend on Nvidia's next product cycle.
For those watching the broader market, the key takeaway is that the AI trade is not monolithic. While Nvidia's leadership change has created uncertainty, the underlying demand for AI infrastructure remains strong. Companies that can serve multiple players in the ecosystem may be better positioned to weather the storm.
Investors should also keep an eye on how the situation evolves. Nvidia has named a new board chair and an interim CEO, but the long-term impact on its strategy and competitive position is still unclear. Rivals like Broadcom and AMD are likely to be watched closely for any signs of gaining ground.
In the meantime, the TSX's heavy reliance on materials means that swings in commodity prices will continue to drive the index. Thursday's gold drop was a reminder of that, but it also showed that tech can provide a counterbalance—at least when the right names are in play.
