TOP TIERMARKET NEWSWIRE
Movers explained · 2026-07-28

Archived explainer. For the current picture see today's FORM page.

Why Is FORMFACTOR INC (FORM) Stock Down Today?

By the Top Tier Newswire AI Desk · July 28, 2026 at 4:05 PM ET · reviewed against 1 wire stories

FORMFACTOR INC (FORM) is down -10.70% in the latest session. Our newswire has captured 1 story on FORM across 1 source in the last 36 hours, with AI sentiment reading bullish (avg 63/100).

Why FORM stock is down today

FORM stock closed down 10.70% at $88.23 on Friday, marking a sharp decline driven by a significant intraday sell-off. The stock opened with a -4.7% gap down from the prior close and continued to fall throughout the session, reaching a low of $84.77 before recovering slightly in the final minutes of trading. The move occurred amid broader market volatility and mixed performance in the semiconductor sector.

What Happened

FormFactor announced a strategic partnership with Keystone Microtech to support next-generation semiconductor technologies. While the partnership is intended to position the company for future growth, the stock reacted negatively, opening below the previous session's close and falling further during the morning. The stock's decline occurred in a broader market environment where major indices showed divergent trends, with the Nasdaq 100 declining and the Dow reaching a record high. The sell-off in FormFactor was not immediately tied to a specific negative event but reflected a combination of profit-taking and investor caution.

What The Data Shows

The stock's intraday trajectory showed a weak start and continued downward pressure until mid-morning. The session low of $84.77 represented a 50% retracement from the 52-week high of $160.27. Despite a slight recovery in the final minutes of trading, the volume of 1.5 million shares was 80% above the 3-month average, indicating increased selling pressure. Over the last 90 days, insiders have sold a total of $6.6 million in shares, with the most recent filing on July 16. Additionally, the CEO, Mike Slessor, has sold shares on three separate occasions since June.

What To Watch

FormFactor is scheduled to be added to the Russell US 1000 Index on June 29, which may bring increased institutional interest. Investors should monitor coverage breadth and any follow-up developments from the strategic partnership with Keystone Microtech.

AI-assisted analysis composed exclusively from headlines and data on the Top Tier newswire. Not financial advice.

FORM by the numbers

Last: $88.23Session: -10.70%Coverage: 1 stories / 1 sourcesAI sentiment: 63/100 (bullish)Mkt cap: $8.1BP/E: 113.652w: $26.08 to $160.27
FORM · Jul 28 session (5-min) · -10.43% vs prior close · updated 8:50 PM ET
$83.93$91.78$99.64prev close $98.80$88.507:00 AM10:11 AM1:22 PM4:33 PM7:45 PM7:00 AM · $94.117:10 AM · $94.007:15 AM · $93.207:40 AM · $92.807:55 AM · $94.008:00 AM · $92.478:35 AM · $93.408:40 AM · $93.008:55 AM · $93.109:25 AM · $92.129:30 AM · $90.299:35 AM · $88.009:40 AM · $87.329:45 AM · $88.129:50 AM · $87.329:55 AM · $86.8610:00 AM · $86.9110:05 AM · $86.4110:10 AM · $85.6610:15 AM · $84.9010:20 AM · $85.6110:25 AM · $85.1610:30 AM · $84.7710:35 AM · $85.4210:40 AM · $85.8310:45 AM · $87.3310:50 AM · $87.2610:55 AM · $86.7511:00 AM · $86.9811:05 AM · $86.7211:10 AM · $86.6711:15 AM · $86.9311:20 AM · $87.7411:25 AM · $87.4811:30 AM · $88.0711:35 AM · $88.5411:40 AM · $88.8011:45 AM · $89.2311:50 AM · $89.2611:55 AM · $89.2512:00 PM · $89.4312:05 PM · $88.4012:10 PM · $88.3312:15 PM · $88.2512:20 PM · $88.3412:25 PM · $88.6512:30 PM · $88.1312:35 PM · $88.7212:40 PM · $88.7212:45 PM · $88.7212:50 PM · $89.2412:55 PM · $89.181:00 PM · $88.901:05 PM · $88.441:10 PM · $88.421:15 PM · $88.401:20 PM · $88.411:25 PM · $88.451:30 PM · $88.631:35 PM · $88.111:40 PM · $87.911:45 PM · $87.941:50 PM · $87.621:55 PM · $87.502:00 PM · $87.882:05 PM · $87.582:10 PM · $87.392:15 PM · $87.392:20 PM · $87.612:25 PM · $87.532:30 PM · $87.722:35 PM · $87.342:40 PM · $87.302:45 PM · $87.642:50 PM · $87.302:55 PM · $87.603:00 PM · $88.183:05 PM · $88.133:10 PM · $88.523:15 PM · $88.573:20 PM · $89.053:25 PM · $88.973:30 PM · $88.613:35 PM · $88.193:40 PM · $87.973:45 PM · $87.983:50 PM · $88.523:55 PM · $88.094:00 PM · $88.244:35 PM · $89.974:50 PM · $91.494:55 PM · $90.605:35 PM · $90.606:50 PM · $89.107:00 PM · $88.617:10 PM · $89.007:20 PM · $90.007:30 PM · $89.007:45 PM · $88.50
AI sentiment, last 36h · averaged over 1 story · 63/100 bullish
AI sentiment 63/100 (bullish)0 · bearish50bullish · 100

The headlines behind the move

Story flow · 1 story on the wire, last 36h · hover or tap a dot for the headline
36h ago24h ago12h agopublishStockTitan · sentiment 63 · FormFactor and Keystone Microtech Announce Strategic Partnership Supporting Next-Generation Semiconductor Technologies | FORM Stock NewsStockTitan · 63FormFactor and Keystone Microtech Announce Strategic Partnership Supporting Next-Generati…
1d agoStockTitanBULLISH 63Product/PR

FormFactor and Keystone Microtech Announce Strategic Partnership Supporting Next-Generation Semiconductor Technologies | FORM Stock News

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More on FORM: full news and sentiment history. Sentiment scores are AI-derived research signals, not financial advice.

Earlier FORM move explainers: 2026-07-29 · 2026-07-28