Zip Co Shares Halved in a Day: U.S. Fraud Incident Triggers a Record 50% Plunge

Zip Co shares plunged as much as 50.5% on Friday, October 23 — the worst single-day fall in the Australian buy now, pay later company's history — after it disclosed an external fraud incident in the United States that cost A$10.1 million (about $7.1 million) and dented first-quarter customer growth. The stock hit A$1.025, its lowest level in more than two years, wiping about A$1.30 billion (about $912 million) from the company's market value in early trade before paring some losses.

What happened to Zip Co?

Zip said on Friday that during its fiscal first quarter — the quarter ended September 30 — it identified and contained an external fraud incident in the U.S. involving coordinated actors who opened new accounts using legitimate credentials and then carried out transactions that went unpaid.

The incident left Zip with A$10.1 million in cash operating expenses. Just as importantly for investors, the company's response to the fraud temporarily weighed on business in July and August: measures taken to contain the activity slowed total transaction volume (TTV) and new customer growth during those two months. Zip said it has notified the relevant authorities and lodged an insurance claim.

Shares reacted instantly. The stock fell as much as 50.5% to A$1.025 by 2322 GMT, according to Reuters — a record intraday collapse — before recovering part of the drop later in the session, trading down roughly 28% to 30% around A$1.43 to A$1.48.

Why is it blowing up?

A halving in a single session is rare for a company of Zip's size, and the story combines three things markets dislike at once: a fraud event, rising bad debts, and questions about controls in the market that now drives most of the business.

Zip derives roughly 70% of its revenue from the Americas, according to Bloomberg reporting cited by CNBC TV18, so a U.S. fraud problem is not a side issue — it hits the core growth engine. The timing also sharpened the reaction: the disclosure came about a week after Joe Heck resigned as chief executive of Zip's U.S. division, with U.S. Chief Technology and Operations Officer Rory Herriman named interim U.S. chief executive.

Credit quality added to the concern. Zip reported net bad debts of 1.97% of total transaction volume for the group in the quarter, up from 1.65% a year earlier. In the U.S., the figure was 1.93%. The Motley Fool Australia noted that 1.97% is getting close to the top of management's 1.5% to 2% target range. UBS analysts called the bad-debts ratio a key miss, having expected about 1.8%, and linked part of the rise to the fraud containment measures that slowed TTV growth.

Analyst reaction was swift. Citi said the incident "raises concerns on Zip's onboarding controls," while Jefferies said investors would need greater clarity on whether the increase in operating expenses would persist and how the company plans to prevent similar incidents in future, according to Reuters.

Key facts at a glance

• Stock move: Down as much as 50.5% to A$1.025 — Zip's worst intraday session on record and its lowest level in more than two years; about A$1.30 billion of market value was erased in early trade before a partial recovery.
• The fraud: Coordinated external actors opened new U.S. accounts using legitimate credentials and executed unpaid transactions during the fiscal first quarter.
• The cost: A$10.1 million (about $7.1 million) in cash operating expenses; authorities notified and an insurance claim lodged.
• Growth impact: Transaction volume and new customer growth were temporarily weighed down in July and August as Zip moved to contain the fraud.
• Bad debts: Net bad debts rose to 1.97% of TTV from 1.65% a year ago (U.S.: 1.93%), above UBS's 1.8% estimate and near the top of Zip's 1.5%–2% target range.
• What still grew: TTV rose 18% to A$4.6 billion in the quarter, total income rose 17%, and cash earnings before tax, depreciation and amortisation (cash EBTDA) increased 3.4% to A$65 million.

What it means — and what is next

The underlying business did not collapse: double-digit volume and income growth continued through the quarter. What collapsed was confidence in risk controls. For a buy now, pay later lender, investors are effectively being asked to trust two systems — the checks that decide who gets an account, and the collections that limit losses when transactions go unpaid. Friday's update put pressure on both at once, which is why a A$10.1 million expense item produced a far larger loss in market value.

The questions that will decide what happens next are the ones analysts flagged on Friday: whether the higher operating expenses tied to the fraud are one-off or recurring, what Zip changes in its U.S. onboarding to stop a repeat, whether the insurance claim offsets part of the cost, and whether bad debts stay inside the 1.5% to 2% target range in the next update. Until Zip answers those with numbers, Friday's record fall is likely to remain the reference point for the stock. This report describes what happened and why markets reacted; it is not a recommendation to buy, sell, or hold any security.

Sources

• Reuters — Australia's Zip tumbles 50% after fraud incident dents first-quarter customer growth
• CNBC TV18 via TradingView — Zip dives after flagging fraud-related costs (Bloomberg)
• The Motley Fool Australia — Zip shares are down 30% today
• Traders Union — Zip Co. shares tumble after U.S. fraud event lifts costs

FAQ

Why did Zip Co shares fall 50%?

Zip disclosed an external U.S. fraud incident that cost A$10.1 million, slowed July and August transaction volume and customer growth, and coincided with bad debts rising to 1.97% of volume — sending the stock to its worst day on record.

What was the Zip fraud incident?

Coordinated actors opened new U.S. accounts using legitimate credentials and made transactions that went unpaid. Zip says it identified and contained the incident, notified authorities, and lodged an insurance claim.

How much did the fraud cost Zip?

Zip reported A$10.1 million (about $7.1 million) in related cash operating expenses, while the early selloff erased about A$1.30 billion from its market value before the shares recovered part of the fall.

Did Zip's business still grow in the quarter?

Yes. Total transaction volume rose 18% to A$4.6 billion and cash EBTDA rose 3.4% to A$65 million in the quarter ended September 30, even as the fraud temporarily weighed on growth in July and August.