Investment research built around change detection.
BestStocks identifies what changed across companies and sectors, explains why it matters, and helps investors spot opportunities worth investigating.
Forgent Power Solutions announced an upsized public offering of Class A common stock on July 1, 2026, pricing shares at a level that triggered a 7.22% intraday decline to $46.30. Volume surged to nearly 6x the normal pace for this time of session.
Announcement of the final number of shares offered and gross proceeds raised; monitor for any commentary on use of capital and potential impact to earnings per share.
Vishay filed a material event 8-K today; content of the filing is not yet available in the evidence provided, but the timing coincides with an 11.14% intraday sell-off from $51.21 to $45.51.
Vishay Intertechnology (VSH) fell 11.36% to $45.40 following a material event filing (8-K) submitted to the SEC today. The specific contents of the filing are not yet accessible from the provided evidence.
Vishay Intertechnology filed a material event 8-K today, triggering a 9.10% intraday decline from $51.21 to $46.55. The specific nature of the material event is not disclosed in the available evidence.
+4 earlier updates — view all in Changes History ↓
SEC EDGAR filing ny20076868x4_8k.htm full text release to confirm the specific event disclosed.
GFS fell 6.34% intraday to $72.33 following announcement of its Q2 2026 earnings conference call scheduled for August 5, 2026 at 8:30 a.m. ET. The sell-off occurred on the same day the call was announced (July 1, 2026), suggesting market reaction to forward-looking commentary or guidance expected during the earnings release.
GFS fell 2.71% to $75.13 intraday. GlobalFoundries announced today (July 1, 2026) a conference call scheduled for August 5, 2026 at 8:30 a.m. ET to review Q2 2026 financial results.
GlobalFoundries' Q2 2026 earnings release and conference call on August 5, 2026 at 8:30 a.m. ET for actual financial results and management guidance.
TTMI fell 13.12% to $156.12 intraday. No earnings announcement, guidance change, analyst rating/price-target revision, deal, or regulatory action was identified in available sources.
TTMI fell 10.77% intraday to $160.34. The only dated evidence available is a July 1, 2026 Zacks article rating it a top growth stock — a positive piece that does not explain the sharp decline.
TTMI fell 8.36% intraday to $164.67. The only evidence provided is a generic Zacks opinion piece from July 2026 describing TTMI as a 'top growth stock' — not a dated catalyst tied to today's move.
+2 earlier updates — view all in Changes History ↓
Check for after-hours press releases, earnings calls, or SEC filings; monitor whether the move stabilizes at close or extends lower tomorrow.
COHR fell 9.62% intraday to $333.20. A Zacks article published today compared Coherent's year-to-date performance against its Business Services sector peers, highlighting relative underperformance.
COHR fell 3.42% intraday to $355.00. No specific company news or catalyst was found—Nasdaq news headlines are unavailable and no earnings, analyst change, or corporate action is evident in available sources.
Coherent's next earnings release and any guidance updates on competitive market share or margin trends in its core business segments.
VIAV fell 11% intraday to $41.89, trading on below-average volume (0.57x expected for this time of day). No dated catalyst—earnings, guidance, deal, or analyst action—appears in available evidence.
VIAV fell 6.73% to $43.41 in early trading despite a July 1 Zacks article highlighting the stock's 167.9% year-to-date outperformance. Volume is running below average (0.64x expected), suggesting light participation.
VIAV fell 4.07% to $44.64 in early trading on below-average volume (0.60x normal). The only dated catalyst in evidence is a July 1 Zacks article noting the stock's 167.9% year-to-date outperformance.
+2 earlier updates — view all in Changes History ↓
Intraday close and any after-hours news or earnings announcement; monitor whether volume recovers or further decline occurs before market close.
ENPH fell 7.54% intraday to $44.95 following a 4.87% decline on July 1st when it closed at $46.84. The stock has extended losses over two consecutive sessions.
ENPH fell 3.23% intraday to $47.04; a Zacks report published today noted the stock closed at $46.84 on July 1, down 4.87% from the prior day.
Upcoming earnings report or guidance revision; monitor for analyst downgrades or sector rotation out of solar equities.
AVAV surged +13.05% to $193.80 on elevated volume (4.05x normal for this time of day), despite two securities fraud class action lawsuits being announced against the company on July 2, 2026.
AVAV surged +14.54% to $196.35 on elevated volume (4.4x normal for this time of day), coinciding with a Seeking Alpha article rating the stock a buy due to leadership in drone and counter-drone solutions, with the Switchblade franchise and counter-UAS offerings cited as key assets.
AVAV jumped +10.02% intraday to $188.60 on elevated volume (4.83x expected for this time of day). On the same date, a Seeking Alpha article rated AVAV a buy, citing leadership in drone and counter-drone solutions and recent share price weakness as a buying opportunity.
+3 earlier updates — view all in Changes History ↓
Company response or statement regarding the securities fraud allegations, and any updates on the Switchblade franchise or counter-UAS product performance that may have triggered the original shareholder losses.
AAOI dropped 16.34% to $116.28 intraday on July 2, 2026, as part of a broader photonics sector selloff that also hit Coherent and Lumentum down ~10%.
AAOI fell 3.48% intraday as part of a broader sector selloff in AI-linked optics stocks, with peers Coherent and Lumentum also declining sharply. The 24/7 Wall St. report attributes the move to a Korean tech rout triggering a valuation reassessment of optics names that have surged triple-digits year-to-date.
Sector-specific earnings, guidance revisions, or regulatory announcements that may clarify whether the photonics decline reflects demand weakness, valuation compression, or a specific company/product issue.
SiTime Corporation (SITM) fell 15.96% to $591.52 intraday following a material event disclosed in an SEC 8-K filing today. The specific details of the 8-K have not been disclosed in available evidence.
Source: FMP intraday
SiTime completed its acquisition of Renesas' Timing Business, announced via 8-K filing today. The stock fell 15.26% on the news.
SiTime Corporation filed a material event on Form 8-K today, triggering a 14.66% intraday decline to $600.64. The specific content of the 8-K filing is not yet available in the evidence provided.
Source: FMP intraday
+4 earlier updates — view all in Changes History ↓
SEC EDGAR filing d71116d8k.htm for full disclosure of the material event triggering today's decline.
TER fell 13.63% intraday to $369.11. No earnings report, guidance update, or material news event appears in today's evidence; the only dated article is from July 2, 2026, discussing a prior 38% three-month rally driven by AI demand and acquisitions.
TER fell 2.65% intraday to $417.40 following lowered Q2 2026 guidance announced after record Q1 earnings. The revenue and earnings reduction for the upcoming quarter triggered a sell-off despite strong current-quarter results.
Watch for Teradyne earnings announcement or any management guidance revision; also monitor semiconductor equipment sector momentum and AI-demand signals for context.
What changed: Genuine Parts Company (GPC) moved +12.92% from $117.40 to $132.57 on 2026-07-02. We checked news, earnings, analyst updates, filings, and corporate actions — no company-specific catalyst was found.
Source: daily_prices
Changes History →Monitor for any earnings announcement, guidance update, or news release that could confirm whether the rally has a fundamental basis or is purely technical.
