Split History
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Video: What is a Stock Split?

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Tesoro is a petroleum refining, logistics and marketing company. Co.'s business is organized into three segments: refining, which refines crude oil and other feedstocks into transportation fuels, such as gasoline and gasoline blendstocks, jet fuel and diesel fuel, as well as other products; logistics, which is comprised of Tesoro Logistics LP's assets and operations, including certain crude oil and natural gas gathering assets, natural gas and natural gas liquids processing assets, and crude oil and refined products terminalling, transportation and storage assets acquired from Co. and third parties; and marketing, which sells transportation fuels through branded and unbranded channels. According to our TSO split history records, TSO has had 1 split.
TSO split history picture
TSO (TSO) has 1 split in our TSO split history database. The split for TSO took place on May 30, 2007. This was a 2 for 1 split, meaning for each share of TSO owned pre-split, the shareholder now owned 2 shares. For example, a 1000 share position pre-split, became a 2000 share position following the split.

When a company such as TSO splits its shares, the market capitalization before and after the split takes place remains stable, meaning the shareholder now owns more shares but each are valued at a lower price per share. Often, however, a lower priced stock on a per-share basis can attract a wider range of buyers. If that increased demand causes the share price to appreciate, then the total market capitalization rises post-split. This does not always happen, however, often depending on the underlying fundamentals of the business.

Looking at the TSO split history from start to finish, an original position size of 1000 shares would have turned into 2000 today. Below, we examine the compound annual growth rate — CAGR for short — of an investment into TSO shares, starting with a $10,000 purchase of TSO, presented on a split-history-adjusted basis factoring in the complete TSO split history. TSO split adjusted history picture

Growth of $10,000.00
With Dividends Reinvested

Start date: 05/27/2010
End date: 11/28/2017
Start price/share: $11.65
End price/share: $99.53
Starting shares: 858.37
Ending shares: 948.70
Dividends reinvested/share: $7.32
Total return: 844.24%
Average Annual Total Return: 34.83%
Starting investment: $10,000.00
Ending investment: $94,405.90
Years: 7.51
Growth of $10,000.00
Without Dividends Reinvested

Start date: 05/27/2010
End date: 11/28/2017
Start price/share: $11.65
End price/share: $99.53
Dividends collected/share: $7.32
Total return: 817.17%
Average Annual Total Return: 34.31%
Starting investment: $10,000.00
Ending investment: $91,704.79
Years: 7.51
Date Ratio
05/30/20072 for 1
TSO is categorized under the Energy sector; below are some other companies in the same sector that also have a history of stock splits:

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