<div id="readability-page-1"><div><p>In the latest look at the underlying components of the S&amp;P 500 ordered by largest market capitalization, Steel Dynamics Inc. (Symbol: STLD) has taken over the #276 spot from Waters Corp. (Symbol: WAT), according to The Online Investor.</p><p>Market capitalization is an important data point for investors to keep an eye on, for various reasons.  The most basic reason is that it gives a true comparison of the value attributed by the stock market to a given company's stock.  Many beginning investors look at one stock trading at $10 and another trading at $20 and mistakenly think the latter company is worth twice as much — that of course is a completely meaningless comparison without knowing how many shares of each company exist.  But comparing market capitalization (factoring in those share counts) creates a true &#34;apples-to-apples&#34; comparison of the value of two stocks.  In the case of Steel Dynamics Inc. (Symbol: STLD), the market cap is now $37.72 billion, versus Waters Corp. (Symbol: WAT) at $37.13 billion.   </p><p>Below is a chart of Steel Dynamics Inc. versus Waters Corp. plotting their respective size rank within the S&amp;P 500 over time (STLD plotted in blue; WAT plotted in green):  <img height="340" src="https://imageproxy.pbkrs.com/https://secure.tickertech.com/pics/2026/36847264391.gif?x-oss-process=image/auto-orient,1/interlace,1/resize,w_1440,h_1440/quality,q_95/format,jpg" width="600" original-src="https://imageproxy.pbkrs.com/https://secure.tickertech.com/pics/2026/36847264391.gif"/> </p><p>Below is a three month price history chart comparing the stock performance of STLD vs. WAT:   </p><p><img src="https://imageproxy.pbkrs.com/https://secure.tickertech.com/pics/2026/36847264392.gif?x-oss-process=image/auto-orient,1/interlace,1/resize,w_1440,h_1440/quality,q_95/format,jpg" original-src="https://imageproxy.pbkrs.com/https://secure.tickertech.com/pics/2026/36847264392.gif"/> </p><p>Another reason market capitalization is important is where it places a company in terms of its size tier in relation to peers — much like the way a mid-size sedan is typically compared to other mid-size sedans (and not SUV's).  This can have a direct impact on which mutual funds and ETFs are willing to own the stock.  For instance, a mutual fund that is focused solely on Large Cap stocks may for example only be interested in those companies sized $10 billion or larger.  Another illustrative example is the S&amp;P MidCap index which essentially takes the S&amp;P 500 index and &#34;tosses out&#34; the biggest 100 companies so as to focus solely on the 400 smaller &#34;up-and-comers&#34; (which in the right environment can outperform their larger rivals).  So a company's market cap, especially in relation to other companies, carries great importance, and for this reason we at The Online Investor find value to putting together these rankings daily.   </p><p>Examine the full STLD market cap history vs. the full WAT market cap history.   </p><p>At the closing bell, STLD is up about 3.8%, while WAT is down about 1.6% on the day Tuesday.  </p><p> <img height="16" src="https://imageproxy.pbkrs.com/https://www.dividendchannel.com/nslideshow.gif?x-oss-process=image/auto-orient,1/interlace,1/resize,w_1440,h_1440/quality,q_95/format,jpg" width="16" original-src="https://imageproxy.pbkrs.com/https://www.dividendchannel.com/nslideshow.gif"/> The 20 Largest U.S. Companies By Market Capitalization » </p> <h3>Further STLD Research:</h3> <ul> <li>Top Ten Hedge Funds Holding STLD</li> <li>STLD Stock Split History</li> <li>Utility Dividend Stocks</li> </ul> <p>The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc.</p> </div></div>

STLD

<p>Steel Dynamics Inc. (STLD) has surpassed Waters Corp. (WAT) in market capitalization, moving up to the #276 spot in the S&P 500 rankings. STLD's market cap stands at $37.72 billion compared to WAT's $37.13 billion. This shift highlights the importance of market cap for comparing company values and determining eligibility for specific investment funds.</p>

Steel Dynamics Moves Up In Market Cap Rank, Passing Waters