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High-priority unexplained moves

8 shown

Jun 3, 2026

Possible corporate action, price adjustment, or thin-tape gap89.6% one-day down move with extreme one-day return; keep open for official split, consolidation, rights issue, or price-history adjustment verification. · Price Tape Review · price_quality

Move -89.61%Macro / market -1.15%Sector after macro +0.72%Industry after sector +1.34%Theme +0.50%Peers -0.50%Residual after context -90.52%

Review priority 100 · Source rank 54 · Volume 10.8x

Source gap possible_corporate_action_or_price_history_adjustment · Next action verify_official_corporate_action_or_price_adjustment

Theme driver Semiconductors · +1.41% across 2 matched companies

Macro surprise surprise_pct_of_forecast 10.73 · score 100%

Decomposition: Macro -1.15% · Sector +0.72% · Industry +1.34% · Theme Driver +0.50% · Peer Specific -0.50% · Company Catalyst +0.00% · Unexplained Residual -90.52%Rejected labels: JOLTs Job Openings (macro_without_surprise) · ISM Manufacturing PMI (macro_without_surprise) · ISM Manufacturing PMI (macro_without_surprise) · ISM Manufacturing PMI (macro_without_surprise) · ISM Manufacturing PMI (macro_without_surprise) · ISM Manufacturing PMI (macro_without_surprise) · ISM Manufacturing PMI (macro_without_surprise) · ISM Manufacturing PMI (macro_without_surprise)

Apr 9, 2025

Broad market moved +10.35% with this stockBroad market context explains +10.35 percentage points of the +17.31% daily move. Remaining company-specific residual is +18.10 percentage points and still needs direct catalyst coverage. · Context With Residual Review · macro

Move +17.31%Macro / market +10.35%Sector after macro -3.81%Industry after sector -1.09%Theme -6.24%Peers +6.24%Residual after context +11.87%

Review priority 95 · Source rank 54 · Volume 2.8x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Theme driver Semiconductors · -0.79% across 6 matched companies

Decomposition: Macro +10.35% · Sector -3.81% · Industry -1.09% · Theme Driver -6.24% · Peer Specific +6.24% · Company Catalyst +0.00% · Unexplained Residual +11.87%

Jun 8, 2026

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +9.27% daily move. · Unexplained High Priority · generated

Move +9.27%Macro / market +0.43%Sector after macro -1.68%Industry after sector -0.20%Theme -4.12%Peers +4.12%Residual after context +10.72%

Review priority 93 · Source rank 0 · Volume 4.4x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Theme driver Semiconductors · -5.57% across 6 matched companies

Macro surprise surprise_pct_of_forecast -33.33 · score 100%

Decomposition: Macro +0.43% · Sector -1.68% · Industry -0.20% · Theme Driver -4.12% · Peer Specific +4.12% · Company Catalyst +0.00% · Unexplained Residual +10.72%Rejected labels: Existing Home Sales (macro_without_surprise) · Existing Home Sales (macro_without_surprise) · Existing Home Sales (macro_without_surprise) · Existing Home Sales (macro_without_surprise) · Existing Home Sales (macro_without_surprise) · Existing Home Sales (macro_without_surprise) · Existing Home Sales (macro_without_surprise) · Existing Home Sales (macro_without_surprise)

Mar 20, 2020

Broad market moved -3.62% with this stockBroad market context explains -3.62 percentage points of the -10.47% daily move. Remaining company-specific residual is -19.76 percentage points and still needs direct catalyst coverage. · Context With Residual Review · macro

Move -10.47%Macro / market -3.62%Sector after macro +5.93%Industry after sector +0.02%Theme +6.96%Peers -6.96%Residual after context -12.80%

Review priority 92 · Source rank 54 · Volume 1.1x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Theme driver Semiconductors · +9.29% across 6 matched companies

Decomposition: Macro -3.62% · Sector +5.93% · Industry +0.02% · Theme Driver +6.96% · Peer Specific -6.96% · Company Catalyst +0.00% · Unexplained Residual -12.80%

Mar 13, 2020

Broad market moved +8.30% with this stockBroad market context explains +8.30 percentage points of the +15.96% daily move. Remaining company-specific residual is +18.44 percentage points and still needs direct catalyst coverage. · Context With Residual Review · macro

Move +15.96%Macro / market +8.30%Sector after macro -4.57%Industry after sector -0.71%Theme -5.49%Peers +5.49%Residual after context +12.94%

Review priority 90 · Source rank 54 · Volume 1.3x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Theme driver Semiconductors · -2.47% across 6 matched companies

Decomposition: Macro +8.30% · Sector -4.57% · Industry -0.71% · Theme Driver -5.49% · Peer Specific +5.49% · Company Catalyst +0.00% · Unexplained Residual +12.94%

Mar 17, 2020

Broad market moved +5.96% with this stockBroad market context explains +5.96 percentage points of the +15.54% daily move. Remaining company-specific residual is +15.93 percentage points and still needs direct catalyst coverage. · Context With Residual Review · macro

Move +15.54%Macro / market +5.96%Sector after macro -2.87%Industry after sector +0.69%Theme -4.17%Peers +4.17%Residual after context +11.77%

Review priority 85 · Source rank 54 · Volume 1.4x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Theme driver Semiconductors · -0.39% across 6 matched companies

Decomposition: Macro +5.96% · Sector -2.87% · Industry +0.69% · Theme Driver -4.17% · Peer Specific +4.17% · Company Catalyst +0.00% · Unexplained Residual +11.77%

Oct 15, 2024

No relevant stored event for down moveNo relevant stored event label passed the company move-attribution threshold for this -14.70% daily move. · Unexplained High Priority · generated

Move -14.70%Macro / market -0.94%Sector after macro -0.24%Industry after sector -0.50%Theme -1.37%Peers +1.37%Residual after context -13.02%

Review priority 84 · Source rank 0 · Volume 3.6x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Theme driver Semiconductors · -3.05% across 6 matched companies

Decomposition: Macro -0.94% · Sector -0.24% · Industry -0.50% · Theme Driver -1.37% · Peer Specific +1.37% · Company Catalyst +0.00% · Unexplained Residual -13.02%

Sep 8, 2020

Broad market moved -3.02% with this stockBroad market context explains -3.02 percentage points of the -9.77% daily move. Remaining company-specific residual is -11.02 percentage points and still needs direct catalyst coverage. · Context With Residual Review · macro

Move -9.77%Macro / market -3.02%Sector after macro +0.95%Theme +3.32%Peers -3.32%Residual after context -7.70%

Review priority 79 · Source rank 54 · Volume 2.7x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Theme driver Semiconductors · +1.25% across 6 matched companies

Decomposition: Macro -3.02% · Sector +0.95% · Industry -0.00% · Theme Driver +3.32% · Peer Specific -3.32% · Company Catalyst +0.00% · Unexplained Residual -7.70%

KLA Corporation

Large moves, explained residuals, and research gaps

High-priority unexplained moves

Accepted price-move labels

Date	Label	Move	Residual after context	Scope	Confidence
Jun 3, 2026	Possible corporate action, price adjustment, or thin-tape gap	-89.61%	-90.52%	Price Quality	62%
Apr 9, 2025	Broad market moved +10.35% with this stock	+17.31%	+11.87%	Macro	58%
Mar 20, 2020	Broad market moved -3.62% with this stock	-10.47%	-12.80%	Macro	58%
Mar 13, 2020	Broad market moved +8.30% with this stock	+15.96%	+12.94%	Macro	58%
Mar 17, 2020	Broad market moved +5.96% with this stock	+15.54%	+11.77%	Macro	58%
Sep 8, 2020	Broad market moved -3.02% with this stock	-9.77%	-7.70%	Macro	58%
Apr 6, 2020	Broad market moved +8.03% with this stock	+16.07%	+8.59%	Macro	58%
Jun 5, 2026	Closest peers moved -5.76% with this stock	-9.47%	-3.71%	Peer	58%
Nov 10, 2022	Broad market moved +6.42% with this stock	+9.10%	+5.64%	Macro	58%
Apr 3, 2025	Closest peers moved -5.88% with this stock	-9.53%	-3.65%	Peer	58%