T-Mobile US (TMUS) has split its stock
once
since going public,
reflecting periods of strong long-term growth and rising share prices.
Stock splits do not change T-Mobile US’s total market value,
but they increase the number of shares outstanding and reduce the per-share price,
making the stock more accessible to investors.
T-Mobile US has a market cap of $203.77 Billion (as of May 15, 2026), making it the world's # 91 largest company by market cap.
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Market Capitalization, often referred to as "Market Cap" is the total value of a company's outstanding shares. It is calculated by multiplying the company's current share price by the total number of shares outstanding. Market cap is a quick measure of a company's size and market value.
T-Mobile US’s stock has split
once
since the company went public.
The splits occurred on a a 1-for-2 basis in 2013.
Does a stock split change T-Mobile US’s market value?
No. A stock split does not change
T-Mobile US’s market cap ($203.77 B)
or the total value of an investor’s holdings.
It only increases the number of shares outstanding while
proportionally reducing the stock price.