US futures are faring better to start the new week, taking some relief after the beating suffered last week. Tech stocks in particular were battered hard, with the Nasdaq snapping a four-week winning streak to end the week down by over 4%. The S&P 500 also fell by roughly 2%, its worst weekly showing since June.But so far today, things are looking up again. Nasdaq futures are up 1.4% while S&P 500 futures are up 0.8% on the day. So, what's changed over the weekend?For one, the bond market seems to be offering up more breathing room for broader markets. 10-year Treasury yields are down slightly to 5.06% now, helped by softer oil prices amid prospects of easing Russian sanctions. So, that is taking some pressure off richly valued tech stocks, whose appeal is particularly sensitive to borrowing costs.Having said that, I still wouldn't take this as an all-clear signal just yet.It was rather evident that the selloff on Wall Street last week wasn't just about the bond market. Despite hotter-than-expected inflation data, Treasury yields fell and yet tech stocks suffered all through the week. Is it a case of investors waking up to the struggles in market breadth and momentum? Or perhaps the case that investors are questioning further the enormous sums being poured into AI infrastructure, especially with financing costs remaining elevated?Either way, the latter will be one to be mindful about as we get into trading this week.Netflix, Meta, and Tesla will all feature on the earnings calendar in the week ahead. And in particular, I would single out Meta's results as being rather crucial as investors will look to scrutinise the firm's AI spending plans and profit margins.Besides that, we'll also get earnings from IBM and Lam Research with the latter perhaps offering clues on whether underlying chip demand remains resilient.Beyond earnings, Friday's US flash PMI readings and the direction of Treasury yields will also be worth watching. For now though, lower yields might be giving tech stocks an excuse to bounce. But looking to the days ahead, I would argue that this week's earnings will need to give investors a reason to keep buying. This article was written by Justin Low at investinglive.com.