JC

James Calloway

Financial Reporter

James Calloway is a financial reporter at StockTi covering corporate earnings, regulatory policy, and market-moving events. A former business journalist with Reuters, James has covered financial markets for over eight years across New York and Washington. He specializes in breaking down earnings reports, SEC filings, and policy decisions that affect publicly traded companies and investor portfolios.

Earnings, Regulation 3,625 articles

Articles by James Calloway

Fiserv Stock Tumbles 8% as Guidance Cut Undermines Valuation Support
Earnings

Fiserv Stock Tumbles 8% as Guidance Cut Undermines Valuation Support

Fiserv shares dropped 8% after the payments firm cut its 2026 outlook, with earnings guidance falling faster than the stock price, raising valuation concerns.

FISV FIS GPN
Western Digital Tumbles 15% as Margin Outlook Tempers AI Storage Rally
Earnings

Western Digital Tumbles 15% as Margin Outlook Tempers AI Storage Rally

Western Digital (WDC) dropped 15% in premarket trading as investors focused on slowing margin growth despite strong Q4 results and upbeat guidance.

WDC SNDK STX MU
Palantir Stock Dips as US Dominates Q2 Growth, Valuation Concerns Rise
Earnings

Palantir Stock Dips as US Dominates Q2 Growth, Valuation Concerns Rise

Palantir (PLTR) shares slipped 2.3% premarket after Q2 results showed 90% of revenue growth from US clients. FY2026 outlook raised, but valuation and concentration risks weigh.

PLTR MSFT AMZN SNOW
MercadoLibre Stock Slips 5% on Q2 Margin Squeeze Despite Record Revenue
Earnings

MercadoLibre Stock Slips 5% on Q2 Margin Squeeze Despite Record Revenue

MercadoLibre (MELI) shares dropped 5.2% premarket after Q2 revenue hit a record $10.2B, but operating income fell 17% and incremental margin was negative, spooking investors.

MELI MORN MS C JPM UBS JEF
SoundHound AI Stock Soars 29% on Q2 Beat, Raised Guidance
Earnings

SoundHound AI Stock Soars 29% on Q2 Beat, Raised Guidance

SoundHound AI (SOUN) shares surged 29% after Q2 revenue jumped 45% to $61.9M, beating consensus. The company raised its 2026 guidance, easing execution concerns.

SOUN LPSN
Oscar Health Stock Surges on Q2 Beat, But H2 Loss Forecast Looms
Earnings

Oscar Health Stock Surges on Q2 Beat, But H2 Loss Forecast Looms

Oscar Health (OSCR) shares rose 6.6% in premarket trading after Q2 results beat estimates, but the insurer's full-year guidance implies a substantial operating loss in the second half.

OSCR
Nu Holdings Buyback Modest Amid Q2 Credit Test
Earnings

Nu Holdings Buyback Modest Amid Q2 Credit Test

Nu Holdings (NU) shares edge higher as a $1B buyback provides minimal buffer; Q2 earnings due Aug 13 will test credit quality.

NU GS JPM BA C
Uber stock slips 5% as robotaxi spending overshadows strong bookings
Earnings

Uber stock slips 5% as robotaxi spending overshadows strong bookings

Uber's Q2 beat on bookings but missed EPS guidance; shares fell 5.3% as investors focused on heavy robotaxi spending and the Delivery Hero acquisition.

UBER GOOGL
Celsius Shares Tumble 17% as Core Brand Sales Slip
Earnings

Celsius Shares Tumble 17% as Core Brand Sales Slip

Celsius Holdings (CELH) shares dropped 17% in premarket after Q2 revenue and EPS missed estimates, as core CELSIUS brand sales fell 11.7% despite Rockstar-driven growth.

CELH PEP
Opendoor's Inventory Surge Overshadows Cost Gains, Shares Drop
Earnings

Opendoor's Inventory Surge Overshadows Cost Gains, Shares Drop

Opendoor stock dropped 8.7% as its $1.85B inventory surge outweighed improved cost per acquisition. Analysts warn on resale speed.

OPEN OPAD Z RKT
Grab's $750M Buyback Takes Center Stage Over Guidance Lift
Earnings

Grab's $750M Buyback Takes Center Stage Over Guidance Lift

Grab's new $750M buyback, 5.1% of market cap, overshadowed a modest guidance raise. Q2 revenue grew 22%, adjusted EBITDA 54%.

GRAB
SolarEdge's 30% Plunge Highlights Fragile Profit Recovery
Earnings

SolarEdge's 30% Plunge Highlights Fragile Profit Recovery

SolarEdge (SEDG) shares dropped 30% after its first adjusted operating profit in three years was solely due to tariff refunds; Q3 guidance points to continued challenges.

SEDG ENPH RUN FSLR