Alphabet suffers its worst day on record, down 12.6%, despite Cloud growth of 103%

Alphabet reported the fastest-growing quarter in its history after the close on Wednesday, Oct. 28, and investors sold it anyway. Class A shares (GOOGL) closed at $283.82 on Thursday, Oct. 29, down 12.6% from $324.89, based on Yahoo Finance closes. The Associated Press described the drop as the company's worst day on record. On Friday the shares slipped again to $279.84, which is 30.5% below the May 13 peak on our chart.

The reason is in the cash-flow table, not the income statement.

What Alphabet reported

From the company's earnings release filed with the SEC on Oct. 28:

• Revenue rose 25% to $127.6 billion, from $102.3 billion a year earlier.
• Google Cloud revenue rose 103% to $30.7 billion, and Cloud operating income rose to $11.1 billion from $3.6 billion.
• Google Search and other grew 12% to $63.4 billion. CEO Sundar Pichai said Search query growth was the highest in five years.
• Operating income rose 30% to $40.6 billion, a 31.8% margin.
• Diluted earnings per share were $2.12, against $2.87 a year earlier.

The EPS decline is an accounting item, not an operating one. According to the company's 10-Q, "other income (expense), net" swung from a $12.8 billion gain to an $8.2 billion loss. Alphabet attributed the change mainly to unrealized losses on marketable equity securities, largely SpaceX, and smaller unrealized gains on private holdings.

The number behind the number: cash

The same release reconciles free cash flow, which is operating cash flow minus purchases of property and equipment. The quarterly figures, in billions of dollars:

Source: Alphabet's free cash flow reconciliation. Trailing-twelve-month free cash flow is $19.7 billion on $159.8 billion of capital spending.

Capital spending has nearly doubled in three quarters, while operating cash flow has fallen from its peak. The 10-Q says Alphabet spent $132.0 billion on capital expenditures in the first nine months of 2026, against $63.6 billion a year earlier, and expects to "significantly increase" infrastructure investment relative to 2025. The company is paying for the gap with outside money: in the third quarter it raised $28.7 billion in senior unsecured notes and $12.4 billion from at-the-market share sales ($4.3 billion Class A, $8.1 billion Class C), with $27.6 billion of that program still available.

Interest expense, a line that barely existed a year ago, was $967 million in the quarter against $1 million.

Confirmed, claimed, unknown

• Confirmed (filings): every figure above.
• Reported by the AP: that the stock fell more than 12% to its worst day on record, and that the market's worry is whether the AI spending will earn adequate profit. We did not independently check the record claim against a full price history.
• Unknown: a dollar figure for 2027 capital spending. Neither the press release nor the 10-Q gives one, so we are not printing one.

The counter-argument

The bull reading is in the filing too. Alphabet reports $567.7 billion of revenue backlog, $560.8 billion of it in Google Cloud, with just over 55% to be recognized within 24 months. That is signed demand, and it is the argument for spending ahead of revenue. The bear reading is that Cloud revenue doubled and the stock still fell 12.6%, which says investors had priced in the growth and are now pricing the cash.

Why a small-business owner should care

Alphabet is the largest single line in many index funds and 401(k) menus, so a 12.6% fall in one name reaches retirement accounts. It also sets the tone for the other AI spenders: Amazon, per our AWS capacity story, posted its own heavy spending, and the Nasdaq Composite fell 2.9% on Friday. See our Sunday night futures brief for where markets stand.

What to watch

• Whether the next capital-spending figure keeps rising or flattens. That is the line the market reacted to.
• Further debt or share issuance: $27.6 billion of at-the-market capacity remains.
• Pricing for Cloud and TPU customers, if the spending is to earn a return. Our Gemini 4 pricing story has the model-side numbers.

Sources: Alphabet filings on SEC EDGAR (Form 8-K, Exhibit 99.1, Oct. 28, 2026; Form 10-Q); Yahoo Finance closing prices; Associated Press. This is market information, not investment advice.