Chip stocks have fallen for six consecutive trading days, and this week ASML and TSMC will tell investors whether the slide has a fundamental excuse. The two companies report results in a stretch that traders have circled since the sell-off began.

Both names carry outsized weight. ASML is the sole supplier of extreme ultraviolet lithography machines, the tools without which leading-edge chips do not exist. TSMC is the foundry that makes most of them. When either speaks, the rest of the supply chain listens.

What happened to chip stocks?

The sector has dropped for six straight sessions, according to Stocktwits, the platform flagging the earnings calendar for retail traders. No single catalyst has been confirmed in the source material. The decline, however, has sharpened attention on what the two reports might reveal about demand.

A six-day slide is a statement. It is not yet a diagnosis.

Why do these two reports matter?

ASML reports first among the equipment makers, and its bookings figure functions as an early order book for the entire industry. Foundries commit capital years in advance; when they hesitate, ASML sees it before almost anyone else.

TSMC follows with numbers that speak to the present. Its revenue, capacity utilization, and capital expenditure guidance anchor expectations for everyone from smartphone makers to AI accelerator designers. The foundry's outlook tends to move the wider market more than any single customer's.

What are traders watching?

The Stocktwits report frames the week as a test of sentiment after the slide. Traders will be watching for:

• Whether ASML's order intake supports or undermines the case that the sell-off was mere profit-taking
• Whether TSMC's guidance signals durable demand at the leading edge
• Whether either management comments on conditions that might explain the six-day decline

The source does not specify consensus estimates, report dates, or segment forecasts. It identifies the companies, the slide, and the week. That is thin gruel for a sector that usually serves numbers by the bowlful.

How much should one read into a six-day slide?

Six sessions of decline in chip stocks are unusual but not rare. The sector has repeatedly sold off sharply and recovered just as sharply, because the underlying assets sit at the center of nearly every technology investment cycle.

The risk this week is asymmetrical. Strong results could reverse the slide quickly; weak guidance from either company would hand the sell-off an argument it currently lacks.

Traders appear to know this. That is precisely why the reports carry more weight than the numbers alone would suggest.

What comes next?

The two reports will either validate the pessimism or expose it as positioning. Either way, the answers arrive within days, and the sector's near-term direction will likely follow the stronger of the two signals.