Top US stock losers: UNH, FI, DKS, Reddit, and Coinbase decline amid policy and earnings woes

In a volatile session on May 15, 2025, U.S. equity markets saw a significant retreat across multiple sectors, with several high-profile names suffering sharp declines. Financial technology, healthcare, consumer discretionary, and artificial intelligence-linked stocks were among the hardest hit. The day’s selloff reflected growing investor anxiety about persistently high inflation, potential delays in interest rate cuts, and earnings-driven disappointments in specific sectors.

The Nasdaq Composite fell 1.4%, while the S&P 500 shed 1.1% and the Dow Jones Industrial Average declined nearly 1.3%. Treasury yields ticked higher as expectations cooled around the Federal Reserve initiating rate cuts in the near term. Institutional sentiment appeared cautious, with defensive flows observed in utilities and healthcare insurers, though even those saw limited protection as sector-wide selloffs broadened.

Why Did Fiserv, Inc. Shares Crash Over 16%?

Shares of Fiserv, Inc. (NASDAQ: FI) plummeted 16.19% to $159.13, erasing over $17 billion in market capitalization. The fintech and payments processing giant disappointed investors with updated earnings guidance that fell below analyst expectations. While the company did not release formal quarterly results on the day, investor sentiment soured following reports suggesting that its point-of-sale Clover unit may face rising competition from Square and Stripe amid pricing pressure.

Institutional outflows were observed as major funds readjusted fintech exposure, triggered by perceived margin compression and declining merchant acquisition velocity in key geographies. The stock’s P/E ratio stood at 28.11, and despite still being up 4.2% over the past 52 weeks, the drop signaled shifting investor expectations in the broader digital payments ecosystem.

DICK’S Sporting Goods Suffers Double-Digit Decline on Inventory Concerns

DICK’S Sporting Goods, Inc. (NYSE: DKS) dropped 14.58% to $179.05, following management commentary at a retail investor conference that hinted at elevated inventory levels heading into Q2. Analysts expressed concern that the company may resort to aggressive discounting, potentially squeezing margins ahead of back-to-school season.

The sharp decline came despite DICK’S reporting relatively solid foot traffic trends. The stock’s P/E stood at 12.75, suggesting it had been reasonably valued prior to the downturn. Retail sector watchers cited sector-wide margin pressure and weakening consumer discretionary spending as underlying headwinds.

UnitedHealth Group Hit by Medicaid Reimbursement Review Fallout

Healthcare behemoth UnitedHealth Group Incorporated (NYSE: UNH) tumbled 10.93% to $274.35, wiping out over $30 billion in market value. The selloff followed confirmation that the U.S. Department of Health and Human Services was reviewing Medicaid Advantage reimbursement models, which could disproportionately impact UnitedHealth’s premium-funded plans.

Investor sentiment weakened sharply as the review signaled a possible regulatory shift that may cap profitability across managed care operations. UNH’s YTD decline now exceeds 47%, marking one of the steepest drawdowns among S&P 500 constituents in 2025. The stock’s relatively low P/E of 12.89 had previously made it a defensive play, but new policy risks changed the narrative for institutional investors.

Reddit, Affirm, and Upstart Dragged Down by Tech Sentiment Reversal

Reddit, Inc. (NYSE: RDDT), a high-profile 2024 IPO, lost 9.36% on the day, falling to $113.59. The social media firm, despite a still-impressive +83% gain over the past year, faced profit-taking as tech valuations came under renewed pressure.

Buy-now-pay-later firm Affirm Holdings, Inc. (NASDAQ: AFRM) declined 8.49% to $51.75. Analysts cited a rotation away from high-risk fintech amid tighter credit availability and elevated default concerns.

Meanwhile, Upstart Holdings, Inc. (NASDAQ: UPST), which uses AI for credit underwriting, slipped 7.66% to $47.39, despite gaining over 85% YTD. Volatility in lending tech stocks remained high as investors questioned the resilience of non-traditional credit models during a high-interest-rate environment.

Alibaba and Futu Face Chinese Regulatory Drag

Shares of Alibaba Group Holding Limited (NYSE: BABA) fell 7.57% to $123.90, weighed down by news of a potential new round of regulatory scrutiny on offshore-listed Chinese tech firms. Meanwhile, Futu Holdings Limited (NASDAQ: FUTU), a Chinese brokerage, dropped 5.33% as sentiment weakened across ADRs of mainland-origin companies.

Despite BABA’s strong 39.9% rally over the past 12 months, the pullback underscored ongoing geopolitical and regulatory fragility. Institutional investors appeared wary of building further positions in Chinese tech until policy clarity improved.

AI Stocks Recoil as Speculative Momentum Wanes

AI-focused stocks also came under pressure. SoundHound AI, Inc. (NASDAQ: SOUN) declined 6.38% to $11.01, giving back part of its 118% one-year gain. Meanwhile, Onto Innovation Inc. (NYSE: ONTO) fell 5.80% to $98.04, as chip and semiconductor-adjacent names tracked the broader decline in tech.

NextDecade Corporation (NASDAQ: NEXT), a developer of LNG export projects with AI-enabled logistical software, dropped 6.10%. Despite broader bullishness on natural gas infrastructure, shares reacted to short-term pessimism in energy tech.

Coinbase and StoneCo Reflect Crypto and Fintech Weakness

Coinbase Global, Inc. (NASDAQ: COIN) tumbled 7.20% to $244.44 amid volatility in Bitcoin prices, which slipped below the $59,000 mark during Thursday’s session. Despite being up nearly 18% in the past year, Coinbase continues to be viewed as a beta proxy for crypto assets.

StoneCo Ltd. (NASDAQ: STNE) declined 5.08% to $13.28 amid lingering concerns about macroeconomic instability in Brazil and foreign exchange losses. Investor appetite for emerging-market fintech remained tepid as the U.S. dollar strengthened on rising Treasury yields.

Weakness Extends to Consumer, Mobility, and Media Stocks

Shares of Snap Inc. (NYSE: SNAP) fell 4.98% to $8.58, amid downgrades from two Wall Street firms citing sluggish ad revenue growth and increasing competition from TikTok and Meta. The stock has now fallen nearly 47% over the past year.

Autonomous vehicle tech stocks like WeRide Inc. (NASDAQ: WRD) and Pony AI Inc. (NASDAQ: PONY) declined by 7.2% and 5.79% respectively. Analysts attributed the pullback to increased regulatory scrutiny around self-driving vehicle testing safety in California and Arizona.

Meanwhile, Trump Media & Technology Group Corp. (NASDAQ: DJTWW) declined 4.85% as retail investor enthusiasm waned. While still heavily traded in meme-stock circles, volumes appeared to normalise.

Policy Uncertainty and Fed Signaling Weigh on Risk Assets

The broader selloff came as Federal Reserve Chair Jerome Powell’s remarks earlier this week suggested that inflation progress remains “uneven,” with sticky wage inflation and core CPI components complicating rate-cut prospects. Swaps markets are now pricing in just one rate cut for 2025, down from three expected in February.

This recalibration of rate expectations has hurt growth and speculative stocks the most, triggering outflows from AI, consumer discretionary, and fintech stocks. Bond yields climbed with the 10-year Treasury yield nearing 4.65%, further reducing the appeal of high-multiple equity stories.

Institutional Sentiment Signals Risk-Off Posture

Data from major trading desks indicated net outflows from equity ETFs and a rotation into short-duration Treasuries and money market funds. Hedge fund gross exposure to high-beta names declined by over 12% on the day, according to prime brokerage estimates.

Volatility also rose, with the VIX touching 18.5, a two-week high. The decline in names like NICE Ltd., Civitas Resources, and PagSeguro Digital Ltd. further suggests a pullback from mid-cap growth and emerging market themes.

What Comes Next for Investors?

Despite the day’s losses, some market participants believe the pullback may offer selective opportunities. “The correction in fintech and AI is largely valuation-driven rather than a fundamental break,” said analysts at JP Morgan, suggesting that earnings delivery in upcoming quarters could restore sentiment.

However, until inflation data softens or the Fed turns more dovish, growth stocks may remain under pressure. Investors are advised to watch upcoming PCE data and earnings revisions closely for cues on sector resilience.