Fiserv shares fell sharply after the financial technology company lowered its 2026 earnings and revenue outlook and reported second-quarter results that missed analyst expectations in both of its main operating divisions. Fiserv, one of the largest US payments and financial-technology firms, processes transactions for millions of merchants and provides core banking technology to financial institutions, making its quarterly performance closely watched as an indicator of spending trends across the payments ecosystem.

Shares of Fiserv were trading around $51 on Thursday, down nearly 6% during regular trading hours after falling as much as 12% in premarket trading. The stock closed Wednesday at $52.30. Over the past 12 months, the shares have lost about 60% of their value, including a decline of roughly 19% so far in 2026.

The company reduced its 2026 adjusted earnings per share forecast to $7.20 to $7.40, down from a prior range of $8.00 to $8.30. That cut lowers the midpoint of the outlook by more than 10%. Fiserv also lowered its full-year organic revenue growth forecast to negative 1% to flat, compared with earlier guidance for growth of 1% to 3%.

A Wall St Engine post on X summarized the results as follows:

FISERV $FISV Q2'26 EARNINGS HIGHLIGHTS

Revenue: $5.3B (Est. $5.04B) ; -4% YoY Adj. EPS: $1.84 (Est. $1.91) ; -26% YoY Organic Revenue: $5.0B; -5% YoY

FY26 Guide: Adj. EPS: $7.20-$7.40 (Est. $8.10) Organic Revenue: -1%-0%

Segment Net Revenue: Merchant… pic.twitter.com/MGgab1h0Y4 — Wall St Engine (@wallstengine) August 6, 2026

Management said the weaker outlook reflects challenging macroeconomic conditions in Argentina and lower-than-expected hardware sales to merchant customers. Argentina has experienced persistent high inflation and currency volatility in recent years, factors that have periodically weighed on multinational companies with significant Latin American operations.

Fiserv's merchant-solutions division generated $2.61 billion in second-quarter revenue, down from $2.64 billion a year earlier and below the Wall Street consensus estimate of $2.66 billion. The financial-solutions division posted $2.36 billion in revenue, compared with $2.55 billion in the same quarter last year and an analyst estimate of $2.39 billion.

The revenue misses across both divisions intensified investor concerns about the scope of Fiserv's operational challenges, coming on top of a similar guidance reduction the prior year.

Jeff Cantwell, an analyst at Seaport Research, described the quarter as "strike twelve" for Fiserv and said the results reflected another case of "miss and reset."

"This one seems fairly broad-based, with both segments missing expectations this quarter, and then the across-the-board reductions in the full-year guidance," Cantwell wrote. "Our view is there's not much for investors to be hanging onto here" in the near term, he added.

Takis Georgakopoulos, who became chief executive in June after Mike Lyons left to join Truist Financial, said the company's underlying business fundamentals remain supported by volume growth and a competitive market position. Chief Financial Officer Paul Todd said Fiserv is "adjusting" its 2026 outlook while remaining committed to its medium-term growth objectives.

The company's latest warning comes after a similar downward revision in 2025 that triggered a 67% decline in the share price that year, marking two consecutive years of reduced full-year guidance under different leadership.