If you've been following the intersection of traditional finance and crypto, the recent tweet from @martypartymusic might have caught your eye. It highlights that MicroStrategy (@MicroStrategy), the software company turned Bitcoin treasury powerhouse, didn't make the cut for the S&P 500 quarterly rebalance in September 2025. This news has rippled through the crypto community, especially since many were betting on its inclusion to boost Bitcoin's legitimacy and price.

For those new to this, the S&P 500 is a major stock market index that tracks 500 of the largest publicly traded companies in the US. Being added to it is like getting a golden ticket – it attracts billions in passive investments from index funds and ETFs, often pumping up the stock's value. MicroStrategy, under the leadership of vocal Bitcoin advocate Michael Saylor, has amassed a massive Bitcoin holdings, making its stock (MSTR) a popular way for traditional investors to gain exposure to BTC without directly buying the cryptocurrency.

The tweet points to an announcement from S&P Dow Jones Indices, though interestingly, the linked page discusses changes to the Australian S&P/ASX indices rather than the US S&P 500. Despite that, the core message aligns with reports that no changes were made to the S&P 500 this quarter, meaning MicroStrategy remains on the sidelines. You can check out the original tweet here.

Why Was MicroStrategy a Contender?

MicroStrategy has been on a Bitcoin buying spree, holding over 226,000 BTC as per recent updates. This strategy has skyrocketed its market capitalization, putting it well above the typical threshold for S&P 500 eligibility (around $8 billion or more). Plus, the company has shown consistent profitability in recent quarters, another key criterion. Analysts and crypto enthusiasts, including those on platforms like CoinDesk, were optimistic about its chances, predicting potential inflows of up to $16 billion if included.

However, the S&P committee has discretion beyond just numbers – they consider factors like sector balance and overall market representation. With Bitcoin's volatility, perhaps they viewed MSTR as too risky or not fitting the traditional software sector mold.

Implications for Bitcoin and the Crypto Market

MicroStrategy's exclusion is a missed opportunity for Bitcoin. Inclusion could have signaled mainstream acceptance, drawing more institutional money into BTC via MSTR shares. Past additions to the S&P 500 have led to stock price surges of 5-10% or more in the short term. For Bitcoin, this might have translated to a price bump, given MSTR's correlation with BTC movements.

On the flip side, this snub underscores the ongoing tension between crypto and traditional finance. It reminds us that while Bitcoin is gaining traction – with ETFs approved and corporations like Tesla holding it – full integration into legacy systems like the S&P 500 is still a work in progress.

How Does This Affect Meme Tokens?

At Meme Insider, we're all about those viral, community-driven tokens, and this news ties directly into one: MSTR2100. This Ethereum-based meme coin is inspired by Michael Saylor's unwavering belief in Bitcoin reaching $21,000 (hence the name). Launched as a fun tribute to MicroStrategy's BTC strategy, MSTR2100's price often reacts to news around the company.

Following the tweet, MSTR2100 saw a brief dip but quickly recovered, trading around $0.15 with a 24-hour volume of over $250,000, according to CoinMarketCap. If MicroStrategy had been included, we might have seen a meme coin rally, as traders pile into related assets for the hype. Instead, this exclusion could keep volatility high, offering entry points for degens betting on future inclusions – perhaps in the December rebalance.

Other Bitcoin-related meme tokens, like those playing on corporate adoption themes, might feel the indirect effects. Remember, meme coins thrive on narratives, and MicroStrategy's story is a goldmine: from Saylor's bold predictions to the company's debt-fueled BTC buys.

Looking Ahead

While disappointing, this isn't the end for MicroStrategy's S&P ambitions. The index rebalances quarterly, so December 2025 is the next shot. In the meantime, keep an eye on Bitcoin's price action – if it rallies, MSTR's market cap could swell further, strengthening its case.

If you're a blockchain practitioner or meme token hunter, events like this highlight the importance of staying informed on tradfi developments. They can create massive opportunities in crypto. For more insights on meme tokens tied to real-world events, stick with Meme Insider.

What do you think – will MicroStrategy make it next time? Drop your thoughts in the comments!