Published: October 28, 2025
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Individual investors are taking over the options market: Retail is now trading an average of 1.2 MILLION S&P 500 0DTE options per day. This surpasses the institutional average number of contracts, at 1.1 million. In other words, retail investors now reflect ~53% of total S&P

Image in tweet by The Kobeissi Letter

@KobeissiLetter Amateur gamblers flood zero day bets, eclipsing pros and inflating bubbles ready to burst spectacularly.

@KobeissiLetter Retail commanding 53% of $SPX 0DTE flow is the hallmark of a market drunk on leverage. That 700% volume spike over five years? Pure froth, juicing intraday grinds until gamma flips and retail unloads in panic. Institutions lap up the liquidity now, but history says the bill comes

@KobeissiLetter Stocks at higher levels equals higher option premiums. Incentives matter and the citadels of the world feast in these environments. Higher

@KobeissiLetter retail showing the institutions how it's done wonder if this trend will continue or reverse itself

@KobeissiLetter Retail drives SPY options frenzy.

@KobeissiLetter Retail trading 53% of 0DTE options? That's not a trend, that's a casino becoming self-aware.

@KobeissiLetter Retail has weaponized leverage. 0DTE options turned markets into real time sentiment casinos and retail just became the largest intraday liquidity force in US equities. That’s a structural shift. The future of markets looks less like long term price discovery and more like AI

@KobeissiLetter Cboe data show SPX 0DTE hit a record ~62% of total SPX volume in August, averaging ~2.4M contracts daily, with retail estimated at ~53% of that flow—confirming individuals now dominate the segment and helping push SPX options’ market share to 74% by September.

@KobeissiLetter Retail is really stepping up 💪

@KobeissiLetter Thats a massive spike, time for retail to take over the markets from the giants.

@KobeissiLetter Lots of retail investors haven't lived through a real market correction like '08 They've only seen that dips instantly reverse

@KobeissiLetter Risk appetite has clearly reached unprecedented levels

@KobeissiLetter that is scary. Every time retail gets too involved, we get our rug pulled by the individuals and firms that actually control the markets

@KobeissiLetter GOOD AND BAD

@KobeissiLetter Is this actually individual investors or just hedge funds playing casino games?

@KobeissiLetter That’s wild, retail running the show and reshaping the options game, love the energy

@KobeissiLetter "Individual investors are taking over the options market" - that's why shorting call and put options is the biggest business ever

@KobeissiLetter Just because activity is higher doesn’t mean retail risk appetite is through the roof. 0DTE can be used as hedging instruments, plus a considerable proportion of this could be credit/debit spreads which limits risk/reward.

@KobeissiLetter We’re seeing unprecedented levels of activity in listed options this year. Primary growth drivers include increased retail engagement, responsible for nearly half the total daily option volume and a resurgence in large-block institutional trades over 1000 contracts in size.

Image in tweet by The Kobeissi Letter

@KobeissiLetter Retail for the win.

@KobeissiLetter Old news 😉

@KobeissiLetter The market doesn’t care about your opinion. It moves according to supply, demand, and human psychology.

@KobeissiLetter Retail traders are the new market makers!

@KobeissiLetter All due to Robinhood app

@KobeissiLetter Retail dominates 0DTE options surge

@KobeissiLetter Retail dominance in 0DTE options marks a major structural shift in market dynamics. With retail now driving over half of daily SPX short-term options flow, intraday volatility is increasingly sentiment-driven. This level of speculative leverage rarely ends quietly.

@KobeissiLetter This is probably because of the easy UX now for it and heightened education. I still find poly markets better for this kind of stuff

@KobeissiLetter A lot of this is also due to new investment vehicles like JEPQ, JEPI, QQQi and SPYi that are bringing down the cost of options and increasing the liquidity.

@KobeissiLetter Is retail mostly YOLO into buying or writing

@KobeissiLetter Retail is really reshaping the options landscape

@KobeissiLetter Retail to institutions :

@KobeissiLetter Retail traders now outpacing institutions in S&P 500 0DTE options isn’t just a stats spike it’s the democratization of leverage and liquidity in real time. This shift blurs the lines between professional strategies and crowd-driven sentiment, making markets faster, more reactive,

@KobeissiLetter The market always gives everyone a turn at feeling like a genius, right before it teaches humility.

@KobeissiLetter This shift in market dynamics is a testament to the power of individual investors. As retail participation grows, institutions must adapt to this new landscape.

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