RDDT Stock Jumps on S&P 500 Inclusion: Is Reddit Stock a Buy Before August 18?

TL;DR

• RDDT stock jumped more than 12% after Reddit was announced as the newest member of the S&P 500, with the index inclusion taking effect on August 18, 2026.
• The rally is being driven by expected buying from passive index funds, while Reddit continues to report strong revenue growth despite lingering concerns over Google search traffic.
• This article explores the bull vs. bear case, valuation, key risks, and whether Reddit stock is still an attractive buy after the recent surge.
• Want to trade RDDT? WEEX TradFi lets you access tokenized Nasdaq stocks like RDDT alongside crypto—all from a single account, with no traditional brokerage required.

Short answer: RDDT stock is a conditional buy — strong near-term, speculative long-term. The S&P 500 inclusion effective August 18, 2026 is a real, mechanical demand catalyst from passive index funds, and Reddit's underlying revenue growth remains strong. But the stock is still down roughly 24% year-to-date, carries a beta above 2.0, and trades at a rich valuation that leaves little room for error if Google search traffic or user growth disappoints again. It fits investors comfortable with high volatility more than those looking for a stable, index-tracking holding.

Why Is RDDT Stock Up After the S&P 500 Inclusion?

S&P Dow Jones Indices announced on August 13, 2026 that Reddit (NYSE: RDDT) will join the S&P 500 effective before market open on August 18, replacing AvalonBay Communities. AvalonBay is being acquired by fellow S&P 500 constituent Equity Residential, and the combined company will be renamed Vivmark Residential, which is what created the open slot in the index.

RDDT Stock Price Today: How Much Has Reddit Stock Gained?

The announcement sent RDDT shares up as much as 11% in after-hours trading, and the stock ultimately closed the next session up 12.63% at $178.09, a gain of nearly $20 from the prior close of $158.12. As of August 16–17, shares are trading in the $174–$184 range, largely holding onto that gain rather than giving it back.

Index inclusion itself is a mechanical catalyst: funds and ETFs that track the S&P 500 are required to buy shares of every constituent, which typically creates a short-term wave of buying pressure into and around the effective date. With this change, Reddit becomes only the second pure-play social media company in the S&P 500, after Meta.

Why Is RDDT Stock Still Below Its 2026 High?

Despite the recent pop, RDDT remains down about 24% for the year and well below its 52-week high of $282.95, set back in September 2025. That gap explains why so many investors are still asking why the stock is down even after a double-digit-percentage rally.

The core reason traces back to Reddit's second-quarter earnings on July 30, 2026. The company actually beat expectations, posting a 61% year-over-year jump in revenue, but the stock still fell more than 22% in a single day as investors focused on softer daily active user trends and renewed concern about Reddit's dependence on Google-driven search traffic. Analysts have flagged that a large share of Reddit's visits originate from Google search, which leaves the platform exposed to any shift in how Google's AI-generated search summaries surface (or bypass) Reddit content.

That earnings-day drop reset the stock's valuation sharply lower, and the S&P 500 news — while a genuine positive catalyst — has only partially closed that gap so far.

RDDT Stock Bull vs Bear Case: What Could Drive Reddit Higher or Lower?

Is RDDT Stock a Buy Before the S&P 500 Inclusion?

There isn't a one-size-fits-all answer, but a few factors are worth weighing before the August 18 effective date:

• If you're index-flow driven: Some of the passive-buying benefit may already be priced in following the 12%+ post-announcement rally, so chasing the news alone is a weaker setup than it would have been on August 13.
• If you're fundamentals-driven: Reddit's revenue growth and margin trajectory remain strong, but the Google search-traffic risk that triggered the July sell-off hasn't gone away — it's just temporarily overshadowed by the index news.
• If you're risk-averse: RDDT's volatility (a 22%+ one-day drop in July, a 12%+ one-day gain in August) makes it a poor fit for investors who need price stability.
• If you're comfortable with swing exposure: The wide gap between bull ($268) and bear ($128) price scenarios reflects a stock where conviction — in either direction — can be rewarded, but so can being wrong.

How to Trade RDDT Stock on WEEX

The following is promotional content from WEEX and is separate from the editorial analysis above.

Investors who want direct exposure to Reddit's price action around the S&P 500 inclusion date can trade RDDT-linked assets on WEEX:

• Spot: weex.com/spot/RDDTON-USDT
• Futures: weex.com/futures/RDDT-USDT

WEEX's TradFi product line lets users gain exposure to tokenized versions of Nasdaq-listed equities like RDDT alongside their existing crypto holdings, without needing a separate traditional brokerage account.

FAQ

Why Is RDDT Stock Up Today?

As of this writing, RDDT is not down — it's trading roughly flat to slightly up around $178, holding most of the 12.6% gain from the August 13 S&P 500 announcement. If you're seeing "why is RDDT down" searches trending, they likely stem from the stock's July 31 post-earnings drop of more than 22%, when Google search-traffic concerns outweighed a strong revenue beat.

What Is the RDDT Stock Price Today?

The index-inclusion rally has only partially offset the sharp post-earnings decline from late July. Even after the recent bounce, shares remain about 24% below where they started 2026 and far below the 52-week high of $282.95.

Is RDDT Stock a Buy?

There's no guaranteed pattern — some stocks continue rising into the effective date on continued fund buying, while others see a "sell the news" pullback once the flow-driven demand is absorbed. Investors focused on the index catalyst specifically should watch trading volume and price action into August 18 rather than assuming the rally will simply continue.

What Is the RDDT Stock Price Target?

Analyst targets vary widely: B. Riley has raised its target to $270, while Deutsche Bank cut its target to $200 after Q2 earnings. One bull/bear framework puts scenarios as far apart as $268 on the upside and $128 on the downside from current levels.

Is Reddit Stock Overvalued?

At a P/E near 41x with a beta above 2.0, RDDT trades at a premium that assumes continued strong revenue growth. Whether that's "overvalued" depends on how much confidence an investor has that Reddit can keep growing through the Google search-traffic risk that triggered July's sell-off.

This article is for informational purposes only and does not constitute financial advice. Cryptocurrency and tokenized asset trading carries risk.

About WEEX

Founded in 2018, WEEX has developed into a global crypto exchange with over 10 million users across more than 170 countries. The platform emphasizes security, liquidity, and usability, providing over 1,600 spot trading pairs and offering up to 400x leverage in crypto futures trading. In addition to the traditional spot and derivatives markets, WEEX is expanding rapidly in the AI era delivering real time AI news, empowering users with AI trading tools, and exploring innovative trade to earn models that make intelligent trading more accessible to everyone. Its 1,000 BTC Protection Fundfurther strengthens asset safety and transparency, while features such as copy trading and advanced trading tools allow users to follow professional traders and experience a more efficient, intelligent trading journey.

Follow WEEX on social media

X: @WEEX_Official

Instagram: @WEEX Exchange

Tiktok: @weex_global

Youtube: @WEEX_Official

Discord: WEEX Community

Telegram: WeexGlobal Group

This content is provided for general informational purposes only and doesn't constitute financial, investment, legal, or tax advice. Any events, rewards, online promotions, or related information mentioned herein should not be considered a recommendation, solicitation, or invitation to purchase, sell, trade, or otherwise deal in any crypto assets. Crypto assets are highly volatile and may result in loss. The availability of WEEX services, products, and related events may vary by region. You are responsible for ensuring that your participation is in accordance with applicable local laws and regulations.