In the latest look at the underlying components of the S&P 500 ordered by largest market capitalization, Ciena Corp (Symbol: CIEN) has taken over the #202 spot from Aon plc (Symbol: AON), according to The Online Investor.  

	Market capitalization is an important data point

Ciena Moves Up In Market Cap Rank, Passing Aon 

Aon expands energy-risk reach with a Power Lifecycle Program offering coordinated coverage from construction through early operations for gas power projects.

AON Broadens Energy Risk Offerings With Power Lifecycle Launch

Aon's $13.5B bond sale for its $17B USI acquisition draws about $65B in orders, tightening pricing despite higher borrowing costs and a difficult market.

AON's USI Deal Drives $13.5B Bond Offering, Draws $65B in Orders

The S&P 500 Index ($SPX ) (SPY ) closed down by -0.33% on Monday, the Dow Jones Industrial Average ($DOWI ) (DIA ) closed down by -0.70%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) closed up by +0.08%.  E-mini S&P futures (ESU26 ) fell -0.28%, and September E-mini...

Stocks Finish Mostly Lower as Rising Crude Boosts Bond Yields

Aon's $17B USI acquisition expands its middle-market reach and specialty capabilities, but adds debt and puts execution under pressure.

Aon's $17 Billion USI Deal: A Costly Bet on Middle-Market Growth

The S&P 500 Index ($SPX ) (SPY ) is down by -0.50% today, the Dow Jones Industrial Average ($DOWI ) (DIA ) is down by -0.67%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) is down by -0.29%.  E-mini S&P futures (ESU26 ) are down -0.48%, and September E-mini...

Stocks Fall as Rising Geopolitical Risks Boost Crude Oil and Bond Yields

Aon plc operates as a professional services firm in the United States, rest of the Americas, the United Kingdom, Ireland, rest of Europe, the Middle East, Africa, and the Asia Pacific. It operates through Risk Capital and Human Capital segments. The company offers commercial risk solutions comprising retail and insurance brokerage, specialty solutions, global risk consulting, captives management, and affinity programs; health solutions, such as consulting and brokerage, consumer benefits, and talent advisory services; and wealth solutions, including retirement consulting and investments. It also provides treaty and facultative reinsurance; strategy and technology group solutions; insurance-linked securities, capital raising, strategic advice, restructuring, and merger and acquisition services; and risk management products and solutions, capital market solutions, and corporate finance advisory services. In addition, the company offers strategic design advice and actuarial services; pension risk transfer and integrated pension administration; and investment advisory services on developing and maintaining investment programs across various plan types, including defined benefit plans, defined contribution plans, master trusts, and pooled employer plans for corporations, public pensions, endowments, and foundations. Aon plc was incorporated in 1979 and is headquartered in Dublin, Ireland.

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