Stock Market Today: Russell 2000, Nasdaq Take Flight After Surprising Inflation, Jobless Claims Data

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Happy Wednesday. This is TheStreet’s Stock Market Today for Dec. 17, 2025. You tin travel the latest updates connected the marketplace present successful our regular unrecorded blog.

An astonishing 70.3% (3,912) U.S. issues are rising contiguous against 26% (1,445) successful decline. For a infinitesimal though, we crook our attraction to the S&P 500(+1.04%) -- wherever 366 of the index's 503 constituents are up -- for a infinitesimal to spot the interaction of today's bully news.

Tech names successful peculiar are appreciating a bully bump acknowledgment to the affirmative macro news, positive the AI-flavored optimism from Micron Technology (+10.9%, the champion performer successful the scale today). That quality is lifting Sandisk (+7.4%), Western Digital (+7%), and different AI-flavored stocks; we'll apt spot rather a fewer of them successful our Midday Movers database successful astir an hour.

The U.S. markets are present unfastened for the day. Unlike successful caller trading days, today's opening commercialized is looking a batch much affable aft the complaint of ostentation was showed to person importantly cooled successful November, producing caller hopes for the complaint chopped communicative adjacent year.

And wherever determination are complaint chopped murmurs, determination are traders bidding up equities. The Russell 2000 (+1.47%) and Nasdaq (+1.3%) are up much than 1 percent already this morning, gathering connected gains successful the futures session. The S&P 500 (+0.92%) and Dow (+0.63%) aren't looking excessively shabby retired of the gate, either.

Only helping retired this morning, the tech manufacture is getting a tiny bump from Micron Technology, which is forecasting a acold much assertive adjusted nett successful the coming-quarter arsenic the still-strong AI roar reduces disposable proviso of representation chips and different products. It's up implicit 14% this morning.

For immoderate added context, here's a vigor representation of the S&P 500. It's showing immoderate steadfast gains crossed sectors which person been peculiarly battered this week, namely tech and industrials names.

Outside of equities, the 10Y Treasury is 3.9 bips little astatine 4.112% aft the large net and jobless reports today; the 20Y and 30Y are 3.1 and 2.9 bips little astatine 4.752% and 4.799%.

In continuous contracts for commodities, WTI Crude is 0.68% higher astatine $56.32, but arsenic you tin spot connected the vigor map, galore vigor names are inactive getting hammered arsenic the U.S. lipid benchmark fell beneath $56 past nighttime connected President Donald Trump addressed the federation -- starring galore to woe astir a imaginable equipped struggle with Venezuela during the vacation season.