Sonos redesigned its app — and lost $500M in market value
Sonos's May 2024 app redesign removed core features, angered customers, wiped $500M from market cap, and forced the CEO's resignation.
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3,222 PUBLISHED CASES · REGULARLY UPDATEDSony paid $3.6B for Bungie — then wrote off $765M as Destiny faded
Sony acquired Bungie for $3.6B in 2022 to compete in live-service games, but Destiny declined and Marathon flopped, leading to a $765M impairment.
Read the caseSTMicro's CEO kept the board — but Italy wanted him out anyway
Italy pushed to replace STMicro CEO Jean-Marc Chéry, citing poor performance and a 30% stock decline. The Franco-Italian governance split became a crisis.
Read the caseSukiya found a rat in its miso soup — so it shut 2,000 stores for four days
Two contamination incidents in two months forced Japan's largest beef bowl chain to close nearly every store nationwide and abandon 24-hour operations.
Read the caseTayto Group's pork scratchings sickened 600 — raw and cooked meat shared a floor
Tayto Group's Westhoughton factory contaminated Mr Porky pork scratchings with Salmonella, sickening nearly 600 people in the UK's first WGS prosecution.
Read the caseTechnicolor invented colour film — then filed for bankruptcy twice
The company that brought colour to cinema went from a Hollywood icon to a Chapter 15 filing, undone by debt and a failed tech transformation.
Read the caseTesco's routine test found Salmonella after tzatziki had reached stores
Tesco recalled one 200g tzatziki batch after routine testing found Salmonella, offering refunds without receipts.
Read the caseWH Smith found £30M in accounting errors — the FCA found the rest
WH Smith uncovered accounting mistakes in its North America business, restated results, and lost £600M in market value. The FCA opened a formal investigation.
Read the caseYpê's cleaning products were contaminated — and a competitor proved it
Unilever found dangerous bacteria in 18 batches of Ypê products and reported it. Brazil's regulator suspended manufacturing and ordered a recall.
Read the caseBacteria hit 13 Ypê laundry lots — six months later inspectors found 76 factory failures
After a 2025 contamination recall, inspectors found failures across Ypê's production and quality systems and stopped 23 liquid products from being made or sold.
Read the caseZillow's algorithm bet on home prices — and lost $420M in a quarter
Zillow Offers bought homes algorithmically, then the market moved. The iBuying business lost $420M in Q3 2021, forcing a shutdown and 25% layoffs.
Read the caseWoolworths UK had 807 stores and 100 years — then debt and the 2008 crash wiped it out
Woolworths was Britain's 100-year-old high-street variety chain — £385M in debt, the 2008 crisis, and 27,000 jobs lost in weeks.
Read the caseVanMoof raised $100M+ to reinvent the e-bike — then went bankrupt with €143.8M in debt
VanMoof designed award-winning smart e-bikes with anti-theft tech — but the S3/X3 had crippling quality issues, and the company collapsed under €143.8M of debt.
Read the caseEnergy Absolute CEO accused of $97M fraud, stock crashed 70%, billionaire lost fortune
Thai renewable energy giant Energy Absolute's CEO accused of $97M fraud, stock crashed 70%, market cap fell from $10.8B to $1.4B.
Read the caseNextTech, 'Vietnam's Alibaba', founder arrested for crypto fraud, token lost 99%
NextTech, 'Vietnam's Alibaba', founder Nguyen Hoa Binh launched crypto token AntEx that lost 99% of value. He was arrested for fraud.
Read the caseCasino borrowed €6.4B to expand — founder lost control in a French retail restructuring
France's second-largest grocer used debt to buy smaller chains, then the debt bought the company.
Read the caseBrewDog's "punk" marketing raised £100M from 220,000 investors — all wiped out
The craft beer pioneer sold equity through brand storytelling, then took a private equity deal that left every small investor with nothing.
Read the caseBao Tin Minh Chau's founder hid VND9.7T in revenue, charged with accounting fraud
Hanoi's major jewelry chain underreported VND9.7 trillion in revenue over four years. Founder Vu Minh Chau, 73, and his son were arrested.
Read the caseThree Squirrels lost ¥20B in market cap — the snack king that peaked too early
The beloved Chinese snack brand closed 700 stores, saw net profit halve and cash flow turn negative by 1075%
Read the caseVinasun lost its taxi market to Grab by fighting in court instead of in the street
Ho Chi Minh City's largest taxi company tried to sue ride-hailing out of existence. The suit won $207,000. The company lost VND487B and 90% of its market.
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