VCDB20Q3

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VCDB20Q3
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Project Information
Has title VCDB20Q3
Has owner Ed Egan
Has start date
Has deadline date
Has project status
Has project output Data, Tool, How-to
Copyright © 2019 edegan.com. All Rights Reserved.

The VCDB20Q3 project documents a build of my VCDB -- Venture Capital DataBase -- covering until the end of 2020 Q3. Each VCDB includes investments, funds, startups, executives, exits, locations, and more, derived from data from VentureXpert. This project updates vcdb4, which covered (almost) to the of Q3 2019, and replaces VCDB20H1, which was a partial build. See also: SDC Normalizer.

Data design

I followed the same data design as in VCDB20H1. Essentially the specification pulls everything, even things that aren't needed like incomplete M&As or withdrawn IPOs, or funds or investments that aren't venture capital, all the way to the present (the pull was done on 11/17/2020), and then place restrictions on the data later. Crucially, the pulls no longer use the venture-related flag, so the data contains private equity and other deals, as well as secondaries and purchases. Note that the M&As are pulled separately for public and private acquirers, and in chunks by year to keep the request sizes manageable.

Processing Steps

Source Files

Copy over and update the source files:

Name
----
NormalizeFixedWidth.pl
RoundOnOneLine.pl
USFirmBranchOffices1980.rpt
USFirmBranchOffices1980.ssh
USFirms1980.rpt
USFirms1980.ssh
USFund1980.rpt
USFund1980.ssh
USFundExecs1980.rpt
USFundExecs1980.ssh
USIPO1980.rpt
USIPO1980.ssh
USMAPrivate.rpt
USMAPrivate00-10.ssh
USMAPrivate10-.ssh
USMAPrivate80-85.ssh
USMAPrivate85-00.ssh
USMAPublic.rpt
USMAPublic00-.ssh
USMAPublic80-00.ssh
USPortCo1980.rpt
USPortCo1980.ssh
USPortCoExecs1980.rpt
USPortCoExecs1980.ssh
USPortCoLongDesc1980.rpt
USPortCoLongDesc1980.ssh
USRound1980.rpt
USRound1980.ssh
USRoundOnOneLine1980.rpt
USRoundOnOneLine1980.ssh

Update the paths and dates in the ssh files then run them (see SDC Platinum).

Database import

Run the SDC Normalizer on each of the files. For most of them, that's straightforward. You can safely ignore the Access Violation error messages that occur at the end of some pulls. However, the following require attention:

  • Fix the header row in USFirms1980.txt before normalizing (the Capital Under Management column name is too long)
  • Remove double quotes from USFund1980-normal.txt, USFundExecs1980-normal.txt, USPortCo1980-normal.txt
  • The private and public M&A files have to be combined after they've been normalized. Then replace \tnp\t and \tnm\t with \t\t.
  • For RoundOnOneLine, remove the footer, run NormalizeFixedWidth.pl first then RoundOnOneLine.pl, and then fix the header.
  • The PortCo Long Description needs to be pre-processed from the command line and then post-processed in excel (see VCDB20H1 and Vcdb4#Long_Description).

Create the dbase as a researcher:

createdb vcdb20q3

Move the files to //mother/bulk/vcdb20q3 and run the load script:

E:\projects\vcdb20q3\Load.sql

Create the keys

Standardize company names using Hall normalization without a fuzzy algorithm (see The Matcher) and matching them to themselves for PortCos, M&As, IPOs. Then create keys for each table as follows:

  • PortCo: Coname, statecode, datefirstinv
  • M&A (private targets): targetname, statecode, announceddate
  • IPOs: issuer, statecode, issuedate