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High-priority unexplained moves

8 shown

May 27, 2020

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +10.00% daily move. · Unexplained High Priority · generated

Move +10.00%Macro / market +0.16%Sector after macro +1.16%Industry after sector -0.93%Theme -2.17%Peers +2.17%Residual after context +9.60%

Review priority 86 · Source rank 0 · Volume 5.8x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Theme driver Semiconductors · -1.78% across 6 matched companies

Decomposition: Macro +0.16% · Sector +1.16% · Industry -0.93% · Theme Driver -2.17% · Peer Specific +2.17% · Company Catalyst +0.00% · Unexplained Residual +9.60%

Apr 9, 2021

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +9.94% daily move. · Unexplained High Priority · generated

Move +9.94%Macro / market -0.59%Sector after macro +1.54%Industry after sector -1.17%Residual after context +10.17%

Review priority 82 · Source rank 0 · Volume 5.5x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Theme driver Semiconductors · -0.23% across 6 matched companies

Decomposition: Macro -0.59% · Sector +1.54% · Industry -1.17% · Theme Driver -0.00% · Peer Specific +0.00% · Company Catalyst +0.00% · Unexplained Residual +10.17%

Dec 4, 2020

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +9.98% daily move. · Unexplained Review · generated

Move +9.98%Macro / market +0.75%Sector after macro +0.53%Industry after sector +0.11%Theme -2.16%Peers +2.16%Residual after context +8.59%

Review priority 77 · Source rank 0 · Volume 2.4x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Theme driver Semiconductors · -0.77% across 6 matched companies

Decomposition: Macro +0.75% · Sector +0.53% · Industry +0.11% · Theme Driver -2.16% · Peer Specific +2.16% · Company Catalyst +0.00% · Unexplained Residual +8.59%

Sep 5, 2025

Closest peers moved +2.37% with this stockClosest peers context explains +2.37 percentage points of the +10.00% daily move. Remaining company-specific residual is +8.27 percentage points and still needs direct catalyst coverage. · Context With Residual Review · peer

Move +10.00%Macro / market +1.53%Sector after macro +0.81%Industry after sector +0.03%Theme -0.64%Peers +0.64%Residual after context +7.63%

Review priority 77 · Source rank 60 · Volume 3.7x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Theme driver Semiconductors · +1.73% across 6 matched companies

Decomposition: Macro +1.53% · Sector +0.81% · Industry +0.03% · Theme Driver -0.64% · Peer Specific +0.64% · Company Catalyst +0.00% · Unexplained Residual +7.63%

Oct 7, 2025

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +9.92% daily move. · Unexplained Review · generated

Move +9.92%Macro / market +1.20%Sector after macro -1.85%Industry after sector +0.91%Theme -2.77%Peers +2.77%Residual after context +9.66%

Review priority 75 · Source rank 0 · Volume 0.7x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Theme driver Semiconductors · -2.51% across 1 matched companies

Decomposition: Macro +1.20% · Sector -1.85% · Industry +0.91% · Theme Driver -2.77% · Peer Specific +2.77% · Company Catalyst +0.00% · Unexplained Residual +9.66%

Dec 28, 2020

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +9.93% daily move. · Unexplained Review · generated

Move +9.93%Macro / market +0.95%Sector after macro -1.49%Industry after sector +0.72%Theme -1.71%Peers +1.71%Residual after context +9.74%

Review priority 75 · Source rank 0 · Volume 1.5x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Theme driver Semiconductors · -1.53% across 6 matched companies

Decomposition: Macro +0.95% · Sector -1.49% · Industry +0.72% · Theme Driver -1.71% · Peer Specific +1.71% · Company Catalyst +0.00% · Unexplained Residual +9.74%

Dec 7, 2020

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +9.92% daily move. · Unexplained Review · generated

Move +9.92%Macro / market +0.54%Sector after macro -1.30%Industry after sector +1.66%Theme +1.22%Peers -1.22%Residual after context +9.02%

Review priority 73 · Source rank 0 · Volume 2.9x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Theme driver Semiconductors · +2.11% across 6 matched companies

Decomposition: Macro +0.54% · Sector -1.30% · Industry +1.66% · Theme Driver +1.22% · Peer Specific -1.22% · Company Catalyst +0.00% · Unexplained Residual +9.02%

Feb 13, 2025

No relevant stored event for up moveNo relevant stored event label passed the company move-attribution threshold for this +9.97% daily move. · Unexplained Review · generated

Move +9.97%Macro / market +1.23%Sector after macro -1.62%Industry after sector +1.34%Theme +0.53%Peers -0.53%Residual after context +9.01%

Review priority 72 · Source rank 0 · Volume 2.3x

Source gap missing_direct_company_catalyst · Next action research_company_specific_news

Theme driver Semiconductors · +1.48% across 6 matched companies

Decomposition: Macro +1.23% · Sector -1.62% · Industry +1.34% · Theme Driver +0.53% · Peer Specific -0.53% · Company Catalyst +0.00% · Unexplained Residual +9.01%

Date	Label	Move	Residual after context	Scope	Confidence
Sep 5, 2025	Closest peers moved +2.37% with this stock	+10.00%	+7.63%	Peer	58%
Mar 12, 2025	Semiconductors moved +2.30% with this stock	+9.95%	+9.12%	Sector	64%
May 18, 2021	Broad market moved +4.89% with this stock	+9.94%	+8.71%	Macro	58%
Oct 27, 2025	Closest peers moved +3.39% with this stock	+9.94%	+6.55%	Peer	58%
Jan 30, 2020	Broad market moved -6.33% with this stock	-9.90%	-7.07%	Macro	58%
Nov 21, 2025	Semiconductors moved -4.62% with this stock	-10.00%	-7.82%	Sector	64%
May 19, 2026	Semiconductors moved -4.14% with this stock	-9.96%	-8.79%	Sector	64%
Feb 9, 2026	Semiconductors moved +5.37% with this stock	+9.92%	+6.26%	Sector	64%
Jan 2, 2026	Semiconductors moved +5.88% with this stock	+9.93%	+6.73%	Sector	64%
May 27, 2026	TWSE:2344 major shareholder over 10pct	+9.93%	+0.87%	Direct	85%

Winbond Electronics Corp.

Large moves, explained residuals, and research gaps

High-priority unexplained moves

Accepted price-move labels