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Last update: Sep 23, 2026, 4:45 PM ET
FormFactor, Inc.
$131.26 4.17% today
After Hours

Why FormFactor, Inc. (FORM) stock moved

Updated Sep 23, 2026

FormFactor, Inc. (FORM) shares rose 4.2% to $131.26 as of September 23, 2026, a moderate gain from the prior close of $126.01. BestStocks flagged the session as a major change for FORM. Below, we break down what changed for FORM, why it matters for investors, how the stock reacted, and the catalysts on the calendar.

What happened

FORM climbed 4.2% to $131.26

FormFactor rose 7.65% on August 11, 2026, closing at $121.07, with no company-specific news of its own that day. The gain was a next-day read-through from renewed AI-infrastructure optimism after Nvidia and six asset managers unveiled partnerships targeting more than $500 billion of third-party capital on August 10, and it ran against a falling tape: the S&P 500 slipped 0.32% and the Nasdaq Composite 0.60%. The rotation was selective rather than sector-wide — Onto Innovation closed up 9.76% and Entegris up 4.16%, but Qorvo actually finished lower.

ValuationLow confidence
Rel. volume
0.8×
Below Avg
Vs peers
No comparable peers
Market cap
$10.2B
NASDAQ Global Select
Analyst target
$151
+14.7% vs price
Price chart
Aug 24 – Sep 23
VVVVVVV$95$113$132Aug 24Aug 31Sep 9Sep 16Sep 23
E earnings
F filing
A analyst
V/N other
click a marker to highlight
Change events — click to jump to details

What it means for FormFactor, Inc. investors

For FormFactor, Inc. investors, the recent signals are mixed, leaving the near-term picture neutral / mixed. On the constructive side: Positive 4.2% session move; Positive price momentum. Weighing against that: FormFactor fell 8.06% to $105.68 as a sector-wide semiconductor and technology selloff was triggered by AI safety warnings and calls for a frontier AI development slowdown, according to reporting cited by Google's AI Overview on finance.yahoo.com and cnbc.com; FormFactor shares fell 5.54% in early trading after Citigroup downgraded the stock to a lower rating. Wall Street's consensus price target sits at $150.50, implying +14.7% upside from $131.26. BestStocks rates the overall signal quality low (53/100). With earnings roughly 42 days out, the next report is the most likely near-term test of the move.

FORM price reaction

FORM last traded at $131.26, up $5.25 (+4.17%) from the previous close of $126.01. The session traded on 0.8× average volume (below avg), so participation was unremarkable. Over the past month the stock has ranged between $95.41 and $131.26, and it currently sits about 100% of the way up that band.

Bullish and bearish analyst opinions on FormFactor, Inc. (FORM)

Latest catalyststrengthens the bull case
The latest catalyst — a materially positive development — it strengthens the bull case and confirms the prevailing bullish analyst lean.

The consensus analyst price target on FormFactor, Inc. (FORM) is $150.50, 14.7% above the recent $131.26. Over the past 90 days analysts logged 0 upgrades, 2 maintains, and 0 downgrades. Here is how the bullish and bearish cases on FORM line up.

The bullish case

  • Wall Street's consensus price target of $150.50 implies +14.7% upside from $131.26.
  • The Street's most bullish target is $175.00 (+33.3%).
  • Positive 4.2% session move.
  • Positive price momentum.

The bearish case

  • The most bearish analyst target is $118.00 (-10.1%).
  • FormFactor fell 8.06% to $105.68 as a sector-wide semiconductor and technology selloff was triggered by AI safety warnings and calls for a frontier AI development slowdown, according to reporting cited by Google's AI Overview on finance.yahoo.com and cnbc.com.
  • FormFactor shares fell 5.54% in early trading after Citigroup downgraded the stock to a lower rating.
  • FORM fell 6.93% to $148.84 intraday on below-average volume (0.55x expected).
Bull vs bear balanceNeutral / Mixed
BearishNeutralBullish

Weighing both sides, BestStocks' composite read of recent signals is roughly balanced, as the bull-versus-bear meter above shows. This is an educational summary of the bull and bear case, not investment advice.

Analyst price targets and ratings are FMP consensus figures as of Sep 23, 2026; other aggregators may differ. High and low targets show the range of estimates, not forecasts.

Analyst expectations
Consensus target: $151+14.7%
= 2 maintains
Evercore ISI Group maintained Outperform · 2026-07-30
SEC filings watch
10-Q2026-08-04
Quarterly financial results
medium
8-K2026-07-29
Material event — review for impact
high
Peer context
FORM+4.2%

Previous notable changes for FORM

Activity2026-09-22+5.6%via fool.com
FormFactor, Inc. moved +5.38% intraday from $119.31 to $125.73. FormFactor CEO Mike Slessor Sells 17,510 Shares: The transaction was valued at ~$1.8 million based on a weighted average execution price of $104.73 per share on September 16, 2026. The traded volume represented 4% of the CEO's direct equity holdings held before the fil [2026-09-22]
Valuation2026-09-17+6.4%via Yahoo Finance
FormFactor reported Q2 earnings beating analyst expectations on both profit and revenue—earnings of $0.82/share versus $0.61 consensus and $258.2M revenue versus $240M estimate (per investing.com)—driving a 6.54% intraday gain to $111.67. Volume of 323,576 shares traded 1.69x the historical average 70 minutes into the session, consistent with post-earnings activity.
Risk2026-09-14-10.4%via Yahoo Finance
FormFactor fell 8.06% to $105.68 as a sector-wide semiconductor and technology selloff was triggered by AI safety warnings and calls for a frontier AI development slowdown, according to reporting cited by Google's AI Overview on finance.yahoo.com and cnbc.com. Anthropic CEO Dario Amodei's weekend essay advocating cautious AI development and independent safety monitoring, endorsed by OpenAI's Sam Altman and Elon Musk, sparked fears that a deliberate development pause could dampen semiconductor capital-spending demand. Volume at 863k shares was normal for this point in the session (0.90x expected).
Valuation2026-09-08+5.7%via Yahoo Finance
FormFactor rose 6.28% to $110.42, driven by institutional accumulation revealed in recent 13F filings (Concurrent Investment Advisors and Allianz Asset Management among buyers) and sustained positive momentum from the company's late-July Q2 earnings beat ($0.82 EPS vs. $0.61 consensus) and record revenues of $258.2 million, bolstered by AI-linked semiconductor sector strength. Volume was 449,750 shares at 170 minutes into session (0.97x average — normal for the time).

In-depth FORM event analyses

Permanent, dated analyses of FORM's most significant sessions.
Upcoming catalysts & outlook
Next earnings
2026-11-04 (est.)
in 42 days
Earnings Release
2026-11-04
High impact
Thesis shift
Neutral / Mixed
bullish signal
Risk level
High
from change events

Frequently asked questions about FORM

Why did FormFactor, Inc. (FORM) stock move?

FormFactor rose 7.65% on August 11, 2026, closing at $121.07, with no company-specific news of its own that day. The gain was a next-day read-through from renewed AI-infrastructure optimism after Nvidia and six asset managers unveiled partnerships targeting more than $500 billion of third-party capital on August 10, and it ran against a falling tape: the S&P 500 slipped 0.32% and the Nasdaq Composite 0.60%. The rotation was selective rather than sector-wide — Onto Innovation closed up 9.76% and Entegris up 4.16%, but Qorvo actually finished lower.

How much did FORM stock rise?

FORM gained 4.17% ($5.25) versus the prior close of $126.01, last trading at $131.26 on 0.8× average volume.

When is FormFactor, Inc.'s next earnings date?

FORM's next earnings report is estimated for 2026-11-04 — about 42 days away.

What is the analyst price target for FORM?

The consensus analyst price target for FORM is $150.50, about 14.7% above the current $131.26. Over the past 90 days, analysts recorded 0 upgrades, 2 maintains, and 0 downgrades.

How BestStocks tracks FORM

This page is generated automatically by BestStocks' change-detection system after its price and volume cleared FORM-specific materiality thresholds, triggering an evidence check. It draws on 20 tracked change events for FORM, cross-checked against the data sources listed below. Price, volume, and market-capitalization figures are the live intraday quote as of September 23, 2026 and refresh as new information is detected; for companies with multiple share classes, market-cap figures can differ by data source. Analyst price targets and ratings are FMP consensus. This is an educational summary of what changed and why — not personalized investment advice.

Data sources
FMP real-time & historical price dataSEC EDGAR filingsFMP earnings & estimatesAnalyst ratings & price targets (FMP)Earnings calendar (FMP)
Educational research tool — not personalized investment advice. Data may be delayed.