--- title: "Why Is the Stock Market Up Today, 8/12/26?" type: "News" locale: "en" url: "https://longbridge.com/en/news/295683807.md" description: "The S&P 500 and Nasdaq 100 rose on August 12, 2026, driven by easing inflation data showing July CPI at 3.4% and core CPI at 2.4%. Yardeni Research raised its 2026 S&P 500 price target to 8,400, citing strong earnings momentum. AI-related stocks like Micron and Dell surged over 4%, while software stocks such as Palantir and Adobe faced pressure." datetime: "2026-08-12T15:07:20.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/295683807.md) - [en](https://longbridge.com/en/news/295683807.md) - [zh-HK](https://longbridge.com/zh-HK/news/295683807.md) generator: "portal-rs" --- # Why Is the Stock Market Up Today, 8/12/26? Both the S&P 500 (SPX) and the Nasdaq 100 (NDX) are in the green on Wednesday after July's Consumer Price Index (CPI) pointed to easing inflation. ### Claim 55% Off TipRanks - Unlock powerful investing tools with TipRanks Premium to make smarter, more confident investment decisions - Subscribe to TipRanks Smart Investor Newsletter, and discover new investing opportunities with data-backed stock picks The CPI rose 3.4%, down from 3.5% in June. Furthermore, core CPI, which excludes volatile food and energy items, increased 2.4%, down from 2.5% in the prior month. Gas prices helped drive CPI lower and fell by 2.9% during the month. Still, with prices now back above $4, gas could put upward pressure on August's CPI. ## **Yardeni Research Hikes S&P 500 Price Target as AI Stocks Rally** Meanwhile, the S&P 500 received an encouraging signal after Yardeni Research raised its 2026 price target to a street-high of 8,400 from 8,250. The firm cited "fabulous earnings momentum" and also hiked its 2026 EPS estimate to $375 from $330. Elsewhere, AI-related stocks are driving the market higher. Micron (MU), Seagate Technology (STX), and Dell (DELL) are all up by over 4% at the time of writing. At the same time, software stocks continue to face pressure following a recent run-up, with Palantir (PLTR), ServiceNow (NOW), and Adobe (ADBE) in the red. ### Related Stocks - [ADBE.US](https://longbridge.com/en/quote/ADBE.US.md) - [PLTR.US](https://longbridge.com/en/quote/PLTR.US.md) - [DELL.US](https://longbridge.com/en/quote/DELL.US.md) - [MU.US](https://longbridge.com/en/quote/MU.US.md) - [PLTD.US](https://longbridge.com/en/quote/PLTD.US.md) - [PLTU.US](https://longbridge.com/en/quote/PLTU.US.md) - [DLLL.US](https://longbridge.com/en/quote/DLLL.US.md) - [SPY.US](https://longbridge.com/en/quote/SPY.US.md) - [MULL.US](https://longbridge.com/en/quote/MULL.US.md) - [PLT.US](https://longbridge.com/en/quote/PLT.US.md) - [IVV.US](https://longbridge.com/en/quote/IVV.US.md) - [MUD.US](https://longbridge.com/en/quote/MUD.US.md) - [PLOO.US](https://longbridge.com/en/quote/PLOO.US.md) - [.NDX.US](https://longbridge.com/en/quote/.NDX.US.md) - [VOO.US](https://longbridge.com/en/quote/VOO.US.md) - [ADBG.US](https://longbridge.com/en/quote/ADBG.US.md) - [PLTZ.US](https://longbridge.com/en/quote/PLTZ.US.md) - [PTIR.US](https://longbridge.com/en/quote/PTIR.US.md) - [PLTG.US](https://longbridge.com/en/quote/PLTG.US.md) - [.SPX.US](https://longbridge.com/en/quote/.SPX.US.md) - [MUU.US](https://longbridge.com/en/quote/MUU.US.md) - [PLTW.US](https://longbridge.com/en/quote/PLTW.US.md) - [ADBU.US](https://longbridge.com/en/quote/ADBU.US.md) - [PLTA.US](https://longbridge.com/en/quote/PLTA.US.md) - [PLTY.US](https://longbridge.com/en/quote/PLTY.US.md) - [PLYY.US](https://longbridge.com/en/quote/PLYY.US.md) - [QLD.US](https://longbridge.com/en/quote/QLD.US.md) - [TQQQ.US](https://longbridge.com/en/quote/TQQQ.US.md) - [PSQ.US](https://longbridge.com/en/quote/PSQ.US.md) - [QID.US](https://longbridge.com/en/quote/QID.US.md) - [SQQQ.US](https://longbridge.com/en/quote/SQQQ.US.md) - [QYLD.US](https://longbridge.com/en/quote/QYLD.US.md) - [JEPQ.US](https://longbridge.com/en/quote/JEPQ.US.md) - [QQQI.US](https://longbridge.com/en/quote/QQQI.US.md) - [SPLG.US](https://longbridge.com/en/quote/SPLG.US.md) - [SPXL.US](https://longbridge.com/en/quote/SPXL.US.md) - [UPRO.US](https://longbridge.com/en/quote/UPRO.US.md) - [SSO.US](https://longbridge.com/en/quote/SSO.US.md) - [SH.US](https://longbridge.com/en/quote/SH.US.md) - [SPXS.US](https://longbridge.com/en/quote/SPXS.US.md) - [SPXU.US](https://longbridge.com/en/quote/SPXU.US.md) - [SDS.US](https://longbridge.com/en/quote/SDS.US.md) - [SPYI.US](https://longbridge.com/en/quote/SPYI.US.md) - [JEPI.US](https://longbridge.com/en/quote/JEPI.US.md) - [XYLD.US](https://longbridge.com/en/quote/XYLD.US.md) - [MUYY.US](https://longbridge.com/en/quote/MUYY.US.md) - [MUZ.US](https://longbridge.com/en/quote/MUZ.US.md) - [STX.US](https://longbridge.com/en/quote/STX.US.md) - [NOW.US](https://longbridge.com/en/quote/NOW.US.md) ## Related News & Research - [Micron Stock Is Surging Toward $1,000 Again. Can MU Keep Climbing?](https://longbridge.com/en/news/296107115.md) - [UBS Global Wealth Management lifts S&P 500 year-end target to 8,100](https://longbridge.com/en/news/296597853.md) - [Palantir director Alexander D. Moore sells USD 2.80 million in common shares](https://longbridge.com/en/news/296412387.md) - [Gallagher Capital Advisors LLC Has $1.41 Million Stock Holdings in Palantir Technologies Inc. $PLTR](https://longbridge.com/en/news/296319209.md) - [Micron CEO: AI has 'totally changed' the equation for the boom-and-bust memory industry](https://longbridge.com/en/news/296543881.md) --- > **Disclaimer: This article is for reference only and does not constitute any investment advice.**