State Street SPDR Portfolio S&P 500 ETF
SPLG
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- SPDR Portfolio S&P 500 ETF (SPLG), now trading as State Street SPDR Portfolio S&P 500 ETF (SPYM) following a name and ticker change effective October 31, 2025, is an exchange-traded fund that seeks to provide investment results corresponding generally to the total return performance of the S&P 500 Index, before fees and expenses. The fund employs a representative sampling technique to track the float-adjusted market capitalization-weighted index, which measures the performance of the large-cap segment of the U.S. equity market, representing approximately 80% of the available U.S. market capitalization; it holds around 504 stocks across diversified sectors including information technology (34.78%), financials (13.54%), consumer discretionary (10.53%), communication services (10.14%), and health care (8.86%), with top holdings such as NVIDIA Corp (7.97%), Microsoft Corp (6.74%), and Apple Inc (6.61%). Launched on November 8, 2005, as part of the SPDR Series Trust and managed by SSGA Funds Management, Inc., a subsidiary of State Street Global Advisors, Inc., headquartered in Boston, Massachusetts, the ETF features one of the lowest expense ratios in its category at 0.02% and has grown significantly in scale, with assets under management exceeding $86 billion as of late 2025. The fund targets investors seeking low-cost, broad exposure to large-cap U.S. equities through growth and value stocks of companies operating across diversified sectors; shares trade on U.S. exchanges like NYSE Arca, with daily pricing and liquidity. It is domiciled in the United States and available primarily to investors in the U.S. and select international markets such as Mexico. Recent developments include a major rebranding on October 31, 2025, when SPLG transitioned to SPYM under the State Street SPDR Portfolio branding, accompanied by adjustments to standing orders on exchanges like MIAX; this followed significant inflows, such as $1.4 billion in a single day in July 2025, boosting assets under management to over $76 billion at that time. The ETF maintains its core tracking strategy with no reported acquisitions, new product launches, or strategic alliances in the past 1-2 years beyond ongoing portfolio rebalancing to align with S&P 500 changes.