Filing Volume Spike Days

Days when federal bankruptcy courts received anomalously high petition volumes — either nationwide (z ≥ 4) or per-court (z ≥ 3 vs. that court's daily mean). The single most striking pattern in the entire 220K-case corpus is the October 2005 BAPCPA rush.

746

Nationwide filings, Oct 14, 2005 (z = 36.61)

198

Highest single-court single-day (mowbk, Oct 14, 2005)

19.5

Nationwide daily-filings mean (full corpus)

137

Texas Northern, July 9, 2025 (z = 24.04)

The BAPCPA rush. The Bankruptcy Abuse Prevention and Consumer Protection Act of 2005 took effect October 17, 2005, raising the bar for Ch.7 eligibility (means test) and adding pre-filing credit-counseling requirements. The result: a stampede of pre-effective-date filings. The 5 highest nationwide days in our entire 35-year corpus are all October 11–15, 2005. Missouri Western, Kansas, Florida Southern, and Texas Southern simultaneously hit their all-time peak loads.

Top 15 nationwide spike days

Date

Nationwide filings

Z-score

Likely cause

2005-10-14

746

36.61

BAPCPA Friday rush (eve of Mon. effective date)

2005-10-15

530

25.72

BAPCPA Saturday rush

2005-10-13

380

18.16

BAPCPA Thursday rush

2005-10-12

312

14.74

BAPCPA week pre-rush

2005-10-16

261

12.17

BAPCPA Sunday rush

2005-10-11

173

7.73

BAPCPA Tuesday pre-rush

2004-11-01

168

7.48

Monday post-Halloween (recurring pattern)

2025-07-09

167

7.43

Modern mass-debtor batch (Texas Northern)

2003-03-03

153

6.73

First Monday of March

2004-03-01

137

5.92

First-of-month spike

2003-05-02

131

5.62

Friday post-month-start

2005-01-03

131

5.62

First business day of 2005

2005-10-06

121

5.11

Pre-BAPCPA buildup

2002-11-01

120

5.06

First-of-month spike

2024-10-31

110

4.56

Halloween 2024 (likely month-end deadline)

Top 20 single-court single-day spikes (by z-score)

Court

Date

Filings

Court mean

Z-score

mowbk

2005-10-14

198

5.4

35.18

ksbk

2005-10-14

153

5.2

31.08

mowbk

2005-10-15

174

5.4

30.80

ksbk

2005-10-15

147

5.2

29.82

vaebk

2012-10-18

1.3

29.07

txnbk

2025-07-09

137

1.7

24.04

flsbk

2005-10-14

184

5.5

23.68

txsbk

2005-10-15

159

4.3

22.31

ksbk

2005-10-13

105

5.2

20.98

txsbk

2005-10-14

145

4.3

20.29

ohsbk

2025-08-05

1.2

19.71

mdbk

1996-12-27

1.2

19.04

mowbk

2005-10-12

103

5.4

17.83

kyebk

2009-09-09

1.3

17.60

txsbk

2004-11-01

126

4.3

17.55

What's in the modern spikes

Methodology

For each court with at least 30 days of filing history, we computed the daily mean and standard deviation of filings. Spike days are those with z-score ≥ 3 OR raw count ≥ 5x mean. Nationwide spikes use the cross-court daily total. The corpus spans 1990–2026.

Caveat. A "spike" reflects court-day filing volume, not anything about the merits or legitimacy of the cases filed. Mass-debtor batches can be legitimate (consolidated mass tort) or operationally suspicious (debt-mill day-end batches). This dataset is the volume signal; root-cause analysis requires docket-level review.