LIVEUpdated 6 mins agoUS stocks jumped on Friday amid a tech stock revival, as investors assessed a week of key data and earnings reports and eyed likely policy shifts under a Trump administration.The Dow Jones Industrial Average (^DJI) gained 0.7% while the S&P 500 (^GSPC) rose 1%, coming off a losing day for the major gauges. The tech-heavy Nasdaq Composite (^IXIC) put on over 1.6% as Nvidia (NVDA) and Tesla (TSLA) shares nudged back into the green.Markets have turned upbeat as investors take stock of recent days’ big bank earnings and inflation readings, which have resuscitated bets on interest-rate cuts. Stocks are on track for big weekly wins after a major rally on Wednesday, while the 10-year Treasury yield (^TNX) pulled back to trade around 4.6% on Friday.DJI – Free Realtime Quote • USD^DJI ^IXIC ^GSPC Advanced Chart Housing starts climbed faster than forecast in December, and US industrial production outstripped estimates. The data out Friday added to a picture of strength in the US economy, buoying rate optimism.Meanwhile, techs were staging a comeback, with Apple (AAPL) stock up slightly in morning trading after booking its worst loss since August. Chipmakers such as Micron (MU) joined Nvidia in making gains, while Coinbase (COIN) was among crypto-linked names getting a boost as bitcoin (BTC-USD) continued its advance above $100,000.Minds are also on potential policy upheaval on the last day of trading before Donald Trump begins his second term as president. Fears are that his plans for tariffs, taxes, and debt — as aired by Treasury pick Scott Bessent on Thursday — could inflame inflation. Inauguration day is Monday, when markets will be closed to mark the Martin Luther King Jr. holiday.China’s economy, an adversary for Trump, grew more than expected last year, topping Beijing’s 5% target after a stimulus blitz. But Asia stocks lost ground on Friday as investors weigh the potential hit from promised hefty tariffs.LIVE 4 updatesThe US Supreme Court has upheld a law that bans TikTok in the US from Sunday unless it is sold to an owner not controlled by a foreign adversary, report Yahoo Finance’s Alexis Keenan and Daniel Howley.The ruling on Friday creates new uncertainty for the Chinese app used by 170 million Americans, but could be a long-term boon for social-media rivals for ad dollars like Meta (META).The court sided with the US government’s argument that ties between TikTok’s parent ByteDance and Beijing presented a national security threat that empowered Congress to demand it be sold.TikTok had argued it was entitled to First Amendment protections and that its proprietary algorithm was in fact an editorial expression that qualified as speech.The court’s decision likely leaves the fate of TikTok in the hands of Donald Trump, who promised to “save TikTok” and had asked the court to suspend the divestment deadline. The president-elect takes office on Jan. 20, a day after the ban goes into effectRead more here. A tech