Companies: 10,795·Total market cap: $144.5T
CoStar Group, Inc.

CoStar Group, Inc.

CSGPNASDAQReal Estate● Active
$33.60
$-0.30(-0.87%)
Market Cap$13.7B
P/E Ratio—
52W High$97.43
52W Low$31.36
Overview

CoStar Group, Inc. (CSGP) Stock Splits

Forward and reverse split history, cumulative multiple, latest ratio, and share calculator on this tab.

FMP · CSGP · as of Jun 8, 2026

Key split metrics

Total Splits2Since IPO (Jul 1, 1998)
Most Recent SplitJun 28, 2021Forward · 10-for-1
Cumulative Multiple×1001 share (1998) → 100 shares today

Latest Split Event

Forward Split
Jun 28, 2021
BEFORE SPLIT$882.60Closing price · Jun 25, 2021
10-for-1
AFTER SPLIT$88.20Opening price · Jun 28, 2021
Each shareholder received 10 shares for every 1 share held.·Total market cap unchanged.·Source: FMP · Historical EOD

Stock Split History

CSGP · 2 records
Date↓RatioTypeMultiple↕Cumulative↕
Jun 28, 202110-for-1Forward×10×100
Jun 17, 202110-for-1Forward×10×10
2 splits since IPO · Jul 1, 1998Data: Financial Modeling Prep · Updated daily

Stock Split Calculator

If you bought 100 shares purchased of CSGP on Jan 1, 2020 — — how many shares would you hold today after all splits?

ORIGINAL SHARES100
→
SHARES TODAY10,000
Splits Applied2
Total Multiplier×100.00
Split Period2021–2021
Splits applied:Jun 17, 2021 · 10-for-1Jun 28, 2021 · 10-for-1
Based on purchase date Jan 1, 2020Share count only · excludes price / dividendsSource: FMP

This calculator shows how stock splits affected share count only. It does not reflect current market value, dividend payments, or transaction costs. Past splits do not guarantee future performance.

About stock split history & investor guide

CoStar Group, Inc. (CSGP) has split its stock 2 times since its IPO, with a cumulative multiplier of ×100. The most recent split was a 10-for-1 forward split on Jun 28, 2021.

Price historyShares outstandingFinancialsEarningsMarket capForecast

Frequently asked questions

CoStar Group, Inc. (CSGP) has split its stock 2 times. All splits were forward splits. The cumulative multiplier is ×100, meaning 1 share at IPO would equal 100 shares today.

CSGP stock split historyhow many times has CSGP splitCSGP cumulative stock splitforward stock split record
Data: Financial Modeling Prep · Updated daily · For informational purposes only, not investment advice.