“If you’re buying one-day options, or selling them, that’s not investing, that’s not speculating, it’s gambling… We’ve never had people in a more gambling mood than now.” – Warren Buffet – Investor
The growing popularity of one-day options exposes a structural tension between markets as venues for capital formation and markets as arenas for short-term wagering on price moves.1 At a practical level, the issue is whether participants are still engaged in valuing businesses and allocating savings, or whether they are primarily buying exposure to intraday volatility with little regard for underlying cash flows or long-term prospects.1 When contracts expire within hours, the mechanism of profit and loss is driven less by fundamental information and more by order flow, sentiment, and microstructure dynamics, which shifts the character of activity from investment to something closer to games of chance.13 That distinction is central to understanding why seasoned investors react so strongly to the rise of these instruments and the mood that surrounds them.1
The rise of one-day options and the changing market mood
Zero-days-to-expiration options, often abbreviated as 0DTE, are contracts that begin and end within the same trading session, allowing traders to stake capital on whether an index or stock will move a few points up or down before the closing bell.14,21 Their appeal is obvious: low upfront premia, enormous effective leverage, and the possibility of rapid gains in a matter of minutes.23 However, the same properties mean that small changes in the underlying price, volatility, or liquidity can produce disproportionately large losses, especially when traders lack a systematic framework for sizing positions and managing downside risk.23 The expansion of 0DTE volumes in major equity indices has been widely documented, with retail and institutional traders both using them for speculative intraday bets and for short-term hedging, blurring the boundary between risk management and gambling behaviour.21 Experienced voices describe today’s environment as one in which more participants than ever treat markets as a casino, driven by a gambling mood rather than by the patience traditionally associated with long-term share ownership.1,11,13
Investing, speculation, and gambling: drawing the line
The distinction between investing, speculation, and gambling is not merely semantic; it reflects different underlying processes for decision-making, time horizon, and relationship to fundamental value.6 Investing typically involves acquiring a stake in an enterprise or asset based on an assessment of its intrinsic value, expected cash flows, and competitive position, with returns arising from long-term growth, dividends, and compounding, rather than from rapid price moves.6 Speculation, by contrast, focuses on anticipating price changes over shorter horizons, but can still be grounded in informed views about valuation, catalysts, or macroeconomic trends; it can be rational and disciplined even if more opportunistic.22 Gambling, in the sense used by critics, refers to activities where participants have little or no analytical basis for their positions, the outcomes are heavily driven by chance, and the odds structurally favour the house or more sophisticated counterparties.9,13 When the payout profile of a one-day option depends almost entirely on transient intraday noise, and when the typical buyer cannot articulate a value-based rationale, seasoned investors argue that such behaviour has crossed the boundary from speculation into gambling.13,14
The mechanism of risk in one-day options
Understanding why one-day options invite the gambling analogy requires examining their risk mechanics, particularly time decay and leverage.23 The price of an option can be decomposed into intrinsic value and time value; for contracts expiring the same day, the time value decays extraordinarily fast, a phenomenon captured by the option Greek theta.23 In formal terms, the sensitivity of an option’s price to the passage of time can be described by \t\th\eta = \frac{\partial C}{\partial t}, where C is the option premium and t is time until expiry; for 0DTE options, \t\th\eta is large in magnitude, meaning that the premium erodes rapidly as the clock runs.23 When traders pay for such options, they are fighting against a structural headwind: the probability-weighted expectation of expiry at zero value unless a sufficiently large move occurs in their favour within hours.21 Add leverage to this profile – for instance, controlling exposure worth 10 000 with a premium of only 100 – and a small adverse price move can wipe out the entire stake.21,23 Market makers and professional desks, who set spreads and manage risk dynamically, effectively occupy the role of the house, benefiting from repeated time decay and order flow imbalances, while retail buyers often supply the premium and bear the bulk of the losses.5,13
Strategic tension: capital markets versus casino dynamics
From a strategic perspective, the proliferation of one-day options poses a question about the function of public markets in modern finance.1,11 On one side is the traditional view of exchanges as mechanisms that connect savers to productive enterprises, allowing companies to raise capital and individuals to share in long-term economic growth.2 On the other side is the growing reality that a significant share of daily turnover is now driven by short-horizon bets that neither finance new projects nor help investors understand businesses, but instead redistribute wealth among traders based on microsecond price changes in derivatives.9,21 Observers have described the present landscape as similar to a place of worship attached to a casino, with serious long-term investing still possible but increasingly overshadowed by a vibrant gambling hall offering one-day options, meme stocks, and prediction markets.1,7,9 For long-term asset allocators trying to find mispriced securities, an environment in which prices are continuously pushed around by leveraged intraday flows can make fundamental analysis harder, as valuation signals become noisier and short-term sentiment dominates screens and newsfeeds.2
The role of technology, retail access, and behavioural drivers
The behavioural shift toward gambling-like activity in markets cannot be separated from the technological and regulatory changes of the past decade.9,13 Commission-free trading apps, fractional shares, and highly visual options interfaces have lowered barriers to participation, turning complex derivatives into products that can be bought with a few taps on a smartphone.23 Social media, online forums, and influencer channels amplify stories of overnight success, creating powerful narratives that encourage chasing quick returns by replicating high-risk trades without understanding their risk-reward profile.9 Prediction markets and volatile instruments such as cryptocurrencies further normalise betting on outcomes and prices, often appealing to the same psychology that drives casino gambling and sports betting, but with the added illusion of sophistication because the activity occurs inside financial platforms.13 The pandemic-era boom in retail trading, stimulus cheques, and time at home reinforced these dynamics, leaving a cohort of participants whose primary experience of markets is short-term wins and losses rather than years of compounding dividends.11,13 When an experienced investor remarks that people have never been in a more gambling mood than now, that observation reflects this convergence of frictionless technology, cultural fascination with risk-taking, and a marketplace saturated with highly leveraged instruments.1,11,13
Buffett’s own use of options and the contrast in approach
It is important to note that criticism of one-day options does not equate to a blanket rejection of all derivatives; the tension lies in how and why options are used.15 The same investor who condemns buying or selling one-day options as gambling has, over decades, used long-dated options in a manner tightly aligned with value investing principles, particularly through selling cash-secured puts on indices and companies he was willing to own at predetermined prices.15,17 In such structures, the option position is simply another way of entering or being paid for a commitment that the investor already finds attractive on fundamental grounds; the time horizon is measured in years, and the underlying is a business whose earnings power and competitive advantage have been extensively analysed.15,19 Option pricing, in this context, can be modelled using frameworks such as Black-Scholes, where the premium reflects volatility and time to expiry, but the seller’s edge comes from a patient assessment of long-run value rather than a bet on intraday swings.18 The contrast with one-day options is stark: instead of seeking to harvest fast-moving gamma and theta on contracts that live for hours, the long-term seller accepts volatility over many years in exchange for an upfront premium and the possibility of owning quality assets at attractive entry prices.15,20 That difference in time horizon and purpose explains why the same instrument category can be described as a useful tool in one case and gambling in another.
Debates and objections: can one-day options be used responsibly?
Not everyone agrees that trading 0DTE options necessarily constitutes gambling, and there is an active debate about whether disciplined strategies can make them part of a legitimate toolkit.22 Professional traders argue that, with robust statistical testing, strict risk limits, and position sizing based on volatility models, it is possible to approach intraday options trading as a skill-based endeavour rather than a random punt.22 For example, a quantitative strategy might forecast intraday realised volatility, structure spreads that benefit from expected mean reversion, and cap losses by limiting exposure to a small share of capital per trade, treating each bet as one sample in a large distribution rather than a life-changing wager.21 From this perspective, the key variable is not contract length but the presence of a repeatable edge grounded in data and risk management. Critics respond that, while such sophistication may exist in institutional desks, the typical retail participant drawn to one-day options by social media or app notifications is rarely operating at that level, and that the product’s design makes rapid, emotionally-driven decision-making almost inevitable.9,23 Moreover, even if individual strategies can be well run, the systemic impact of huge volumes of leveraged same-day options may still increase the risk of flash crashes and destabilising feedback loops.21 Thus, the objection is less about banning the instrument and more about recognising the behavioural and systemic hazards that accompany its widespread use among unsophisticated traders.1,21
Why the distinction matters for investors and policy-makers
The controversy around one-day options matters because it shapes how households view markets, how professionals allocate capital, and how regulators think about systemic risk.11,21 For individual savers trying to build wealth over decades, a financial culture that glamorises daily betting on prices can crowd out attention to proven disciplines such as regular investing in diversified portfolios, understanding business fundamentals, and harnessing compounding,2 which historically have delivered more reliable outcomes than short-term trading.6 For institutional investors seeking fundamental value, an environment dominated by gambling-like flows can make it harder to interpret price signals, potentially leading to misallocation of capital or delayed corrections when sentiment suddenly reverses.2,9 For regulators and exchanges, the rapid growth of 0DTE volumes raises questions about margin frameworks, circuit breakers, and disclosure obligations, as they weigh the benefits of liquidity against the risks that concentrated leverage and crowd behaviour could trigger extreme intraday moves.21,23 Ultimately, the line drawn between investing, speculation, and gambling is not simply rhetorical; it reflects competing visions of what public markets are for, and whose interests they serve when the most eye-catching products are those that settle within a single day rather than those that finance businesses for years.1,11
References
1. “I was in the room when Warren Buffett gave a surprise interview at Berkshire’s annual conference. The mood swung from excited to gloomy, then hopeful.” – https://www.businessinsider.com/warren-buffett-surprise-interview-berkshire-hathaway-meeting-gambling-nuclear-deepfakes-2026-5
2. ‘Church with a casino attached’: Buffett warns investors are gambling … – 2026-05-03 – https://www.moneycontrol.com/news/business/markets/church-with-a-casino-attached-buffett-warns-investors-are-gambling-like-never-before-13906570.html
3. Warren Buffett on the market today: ‘It’s tough to find values when everybody is preferring gambling’ – 2026-07-15 – https://www.cnbc.com/2026/07/15/warren-buffett-on-the-market-today-its-tough-to-find-values-when-everybody-is-preferring-gambling.html
4. The Casino Has Gotten Very Attractive”: Buffett’s 8-Word Warning From June 2026 – 2026-07-01 – https://www.youtube.com/watch?v=iHYEUssLXMM
5. Key Takeaways From Berkshire Hathaway’s Annual Meeting – 2026-05-03 – https://www.forbes.com/sites/bill_stone/2026/05/03/berkshire-hathaway-annual-meeting-2026-key-takeaways/
6. One Day Options, Prediction Markets & Speculation Buffett’s Biggest Fear in 2026 – 2026-06-30 – https://www.youtube.com/watch?v=fkZK6-kKkNA
7. Warren Buffett Doesn’t Liken Prediction Markets to Investing – 2026-05-04 – https://www.casino.org/news/warren-buffett-doesnt-liken-prediction-markets-to-investing/
8. Church with casino attached: Billionaire Warren Buffett on short-term options trading – 2026-05-03 – https://inshorts.com/en/news/church-with-casino-attached–billionaire-warren-buffett-on-short-term-options-trading-1777811313593
9. Buffett’s 2026 Annual Meeting Bombshell What He Said That Shocked the Room – 2026-07-03 – https://www.youtube.com/watch?v=HZN7ZNbMAgk
10. Buffett Warns: Stock Market is Now Gambling, Not Investing! – 2026-05-20 – https://www.youtube.com/watch?v=MoFyFoa3PDM
11. How Warren Buffett uses Options (and why I use the same approach) – 2024-10-25 – https://www.youtube.com/watch?v=fl7MN8_46qI
12. Warren Buffett Says Markets Have Turned Into A ‘Casino,’ Warns, We’ve ‘Never Had People In A More Gambling Mood Than Now’ – 2026-05-05 – https://finance.yahoo.com/markets/options/articles/warren-buffett-says-markets-turned-104603447.html
13. F&O Worth the Risk? – Explained | Warren Buffett | Options Trading | Stocks – https://www.youtube.com/watch?v=U-zaDeZjE9I
14. Bitcoin critic Warren Buffett warns crypto traders on risky bets | Bitget News – 2026-05-03 – https://www.bitget.com/news/detail/12560605395554
15. Warren Buffett calls markets a ‘casino’ – and Jim Cramer says your S&P 500 ETF is the problem. Who’s right? – 2026-06-20 – https://ca.finance.yahoo.com/news/warren-buffett-calls-markets-casino-132000367.html
16. Warren Buffett Options Strategy: The Oracle of Omaha’s Secret – 2024-11-21 – https://optionsjive.com/blog/warren-buffett-options-strategy/
17. Warren Buffett will no longer write annual letter, speak at … – 2025-11-20 – https://www.reddit.com/r/finance/comments/1otp5zj/warren_buffett_will_no_longer_write_annual_letter/
18. Warren Buffett’s Options Trading Strategy – 2016-09-05 – https://optionalpha.com/podcast/warren-buffett-options-strategy
19. Trade Options Like WARREN BUFFETT – Value Investing … – 2021-07-19 – https://valuesider.com/blog/post/trade-options-like-warren-buffett-value-investing-options-strategy
20. Does Warren Buffett Trade Options? Yes, Here’s How – 2026-04-27 – https://www.ruleoneinvesting.com/blog/how-to-invest/do-warren-buffett-and-phil-town-trade-options/
21. Warren Buffett’s Secret Option Strategy (And How to Copy It) – 2026-04-19 – https://www.youtube.com/watch?v=wA8L2E8nHK0
22. 0DTE Options: Investing or Gambling? – 2023-11-03 – https://www.nyujlb.org/single-post/0dte-options-investing-or-gambling
23. Is Day Trading 0DTE Options Just Gambling? – 2026-03-04 – https://www.spxoptiontrader.com/trading-guides/is-day-trading-0dte-options-just-gambling/
24. What Are 0DTE Options? Learn the Basics – 2025-12-02 – https://www.schwab.com/learn/story/zeroing-on-0dte-options-learn-basics
