Skip to content
A mapping between SDCs M&A database and the gvkey's in Compustat
Branch: master
Clone or download
Latest commit 3caf4ed Mar 26, 2019
Type Name Latest commit message Commit time
Failed to load latest commit information. Fixec broken link Mar 26, 2019
dealnum_to_gvkey.csv First import Nov 20, 2018


Connecting SDC's M&A database to Compustat requires gvkey's for both the acquirer and target (if they are traded/public). Gordon Phillips and Alexei Zhdanov (RFS, 2013) created the first major mapping between firms in SDC and Compustat using a combination of name and date matching. Gaps where filled in using this website that replicates the gvkey search in WRDS. The data was used in Ewens, Peters and Wang (2018). Either myself or a research assistant searched all M&As deals from 1996-2016 that did not have a gvkey in the Phillips and Zhdanov data, comparing names and dates by hand.


The data is in csv form with the following structure:

(DealNumber, tgvkey, agvkey)


  • DealNumber: SDC identifier for deals.
  • agvkey: the acquirer gvkey (can be missing)
  • tgvkey: the target gvkey (can be missing)

Note that this includes all deals where we could find a gvkey for either the acquirer or target. Basic statistics as of Nov. 20th, 2018:

  • 100,454 deals with agvkey
  • 50,248 deals with tgveky
  • 22,259 with both agvkey and tgveky


Stay tuned (i.e., watch or star this repo.) for updates. Any errors or fill-ins, please email


  title={R\&D and the Incentives from Merger and Acquisition Activity},
  author={Phillips, Gordon M and Zhdanov, Alexei},
  journal={The Review of Financial Studies},
  publisher={Society for Financial Studies}


 title={Acquisition prices and the measurement of intangible capital},
 author={Ewens, Michael and Peters, Ryan and Wang, Sean},
 journal={Working Paper}
You can’t perform that action at this time.