Why is SMCI stock down today?

SMCI fell 10.5% over five trading days, closing at $31.39 on Nov. 3, 2026. A drop like that raises one question: is the problem the company or the whole group it trades with?

To answer that, we compare SMCI with its closest peers, check the calendar for earnings and Fed dates, and review Super Micro Computer, Inc.'s latest SEC filings and insider trades.

The chart below tracks SMCI's daily closing price from May 8, 2026 to Nov. 3, 2026. Over that stretch it is down 11.3%, from $35.37 to $31.39, with a high of $50.17 on June 2, 2026 and a low of $23.83 on July 20, 2026. Each red circle marks a week in which company insiders sold shares on the open market (2 weeks in this period; bigger circles mean more money). There are no green diamonds: no insider bought on the open market in this window.

What could be behind the SMCI move

The company reported earnings 1 day ago, on Nov. 3, 2026.

The broader market is in an uptrend under stress, with the VIX volatility index at 20.83. The Federal Reserve's next rate decision comes on Dec. 9, 2026, 35 days away. Market pricing puts the odds at 20% for a hold, 79% for a hike and 2% for a cut.

Also worth knowing about SMCI

Live SMCI data, updated every 30 minutes: SMCI insider trades, ownership and filings →

In Super Micro Computer, Inc.'s own words

“Supermicro’s transformation into a Total AI and IT Datacenter Solution provider continues to accelerate, delivering record revenue of $19.9 billion for the first quarter fiscal 2027”

— Charles Liang, Founder, President, and CEO of Supermicro · SEC filing

From the company's earnings release filed with the SEC on 2026-11-03 (Form 8-K).

What would change the picture for SMCI

These are the specific events and levels to watch. None of them is a prediction.

• The next earnings report is due Feb. 1, 2027, 89 days away. Super Micro Computer, Inc. beat estimates in all 4 of the last 4 quarters, with an average surprise of +47.2%. A miss would break that pattern.
• Insider buying: none on the open market in 90 days. A purchase by an executive or director would be the first in at least three months. It would appear on SEC Form 4 within two business days.
• Price levels: a close above $50.75 would mark a new 52-week high, 61.7% above the latest close of $31.39. A close below $20.53 would mark a new 52-week low, 34.6% below that level.
• Growth: revenue rose 77.8% year over year in the quarter ending Jun 2026, and the trend is accelerating. At a P/E of 9.7, a slowdown would matter more than at a lower multiple.
• New shares: dilution risk is high now. A new shelf registration (S-3) or prospectus supplement (424B) for an offering would raise that risk.

SMCI history: what happened after similar moves

Since 2023, SMCI fell 27.3% or more in a month 11 times (separate episodes, not counting the current one). Three months later it was higher in 5 of 11 cases; the median change was -0.8%.

Past moves don't predict the next one; they show how volatile the stock has been.

Questions people also ask

What is SMCI's 52-week high and low?

Over the past year, SMCI closed as high as $50.75 and as low as $20.53. At $31.39 on Nov. 3, 2026, the stock is down 38.1% from the high and 52.9% above the low. More →

When does Super Micro Computer, Inc. report earnings next?

The next report is expected on Feb. 1, 2027, 89 days from now. Super Micro Computer, Inc. beat the average estimate in all 4 of the last 4 reports. More →

Is Super Micro Computer, Inc. profitable?

Yes. Super Micro Computer, Inc. generated $39.1 billion in revenue over the last 12 months, with a net margin of 5.7% and a P/E of 9.7.

Who is the largest shareholder of SMCI?

Among investment managers that file Form 13F, BlackRock Inc. reported the largest SMCI position at $1.4 billion. A total of 767 institutions reported holding SMCI for Q2 2026.

Are SMCI insiders buying or selling?

Insiders sold $24.4 million of SMCI on the open market in 90 days and bought none. Sales are often routine, tied to taxes, diversification or pre-planned plans. Purchases made with their own money send the stronger signal.

Is Super Micro Computer, Inc. issuing new shares?

Dilution risk reads high at 95/100, and the share count rose 10.5% in a year. That figure is based on 2 offering-related filings in 12 months.

Dates to watch for SMCI

Insider trades can come any day: they must be filed on Form 4 within two business days.

Key terms on this page

P/E ratio

Price divided by the last 12 months of earnings per share. A P/E of 20 means investors pay $20 for each $1 of yearly profit. It is only defined when the company is profitable.

Form 4

The SEC form a company's officers, directors and 10% owners must file within two business days of buying or selling its stock.

Open-market trade

A purchase or sale on the exchange at the market price, paid with the insider's own money (code P or S on Form 4), as opposed to option exercises, grants or gifts.

Form 13F

A quarterly SEC report listing the U.S. stock holdings of every investment manager with more than $100 million. It is due 45 days after each quarter ends, so it shows positions with a delay.

Dilution

When a company issues new shares, each existing share owns a smaller piece of the company. Common sources: stock offerings, convertible debt and large stock-based pay.

Form 8-K

The SEC form for material events between quarterly reports: earnings releases, deals, executive changes, stock offerings and similar news.

52-week high / low

The highest and lowest daily closing price over the past year (about 252 trading days).

Where these numbers come from

Every number on this page is computed from the data when the page is refreshed (usually daily); nothing is typed in by hand. This is information, not investment advice.

• Price: daily closing prices run through Nov. 3, 2026. Changes use 5, 21 and 63 trading days, and the 52-week range uses the last 252 closes.
• Insider trades: SEC Form 4 filings cover the last 90 days and count only open-market purchases (code P) and sales (code S). Option exercises, grants, gifts and filings with data errors are excluded.
• Earnings dates and estimates: a market-data calendar shows reported versus expected EPS for the last 4 quarters.
• Valuation and growth: revenue, earnings, margins and share counts come from the company's SEC filings, using XBRL data for the latest quarter, Jun 2026. P/E and price/sales use the latest close.
• Fund ownership: SEC Form 13F filings cover Q2 2026.
• Dilution: share-count changes and offering-related SEC filings, including shelf registrations, prospectus supplements and convertible notes, are tracked over two years and scored 0-100.
• History: 21-trading-day moves over about three years of daily closes, counted once per episode.