item 2 05 restructuring short
What it checks
When a company files an 8-K announcing a major restructuring or plant closure, the bad news isn't fully priced on day one — short for two months while the operating weakness leaks out.
Mechanism
8-K Item 2.05 (Costs Associated with Exit or Disposal Activities) flags material restructurings, plant closures, asset write-downs, and discontinued operations. The market under-reacts at filing; the underlying operating weakness leaks out over ~60d as the restructuring takes effect.
Signal rule
Any 8-K Item 2.05 filing -> SHORT on T+1, hold 30/60/90d.
Data dependencies
daily_pricesAdjusted-close OHLCV for every US-listed ticker; primary price feed.
sec_8k_eventsItem-coded 8-K events (1.01 material agreements, 4.02 non-reliance, etc.).
Expected edge
- Paper alpha
- -4% over 60d
- Paper window
- T+1 to T+90d
Hotchkiss-Mooradian 1997 + Atiase-Platt-Tipton 2004; ~-4% over 60d.
Related families
sec 8k disclosure velocityDisclosureAcceleration in 8-K filing frequency (per-90d count z-score vs trailing-2y own history) is an information-environment shock. Firms accelerate disclosures around adverse events (restatements, departures, litigation, Reg FD violations); tail-z velocity predicts both elevated realized vol and a negative drift over 1-2 quarters.
item 4 02 restatement shortDisclosure8-K Item 4.02 (Non-Reliance on Previously Issued Financial Statements) is by SEC rule one of the strongest negative-information disclosures — management has concluded prior financials cannot be relied upon. Documented -8% event-day return and -12% drift over 6 months.
item 5 03 governance change shortGovernance8-K Item 5.03 (Amendments to Articles or Bylaws; Change in Fiscal Year) often coincides with entrenchment moves: anti-takeover provisions, board-size changes, supermajority-vote requirements. Structural governance changes (distinct from Item 5.02 officer departures) correlate with subsequent underperformance.
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