Somewhere right now, someone is reading that the $25,000 Pattern Day Trader rule just got eliminated — and they’re thinking, “Great, I can start day trading with $500.”
They’re going to lose that $500. Probably within a month.
Here’s the uncomfortable truth about starting capital that nobody on social media wants to admit: the regulatory minimum to day trade just dropped dramatically. The functional minimum — the amount you actually need to survive long enough to learn — hasn’t changed at all. If anything, it matters more now that the biggest guardrail in retail trading has been removed.
Our team has watched this pattern repeat for years. A new trader shows up with the bare minimum, gets crushed by the math of small accounts, and quits before they ever had a chance. Not because they lacked talent. Because they were underfunded from day one, and that lack of capital forced every decision into a losing one.
This article gives you the real numbers. Not the broker minimums that get you through the door. Not the fantasy figures from social media. The actual dollar amounts you need — by market, by experience level, by account type — to give yourself a legitimate chance at surviving the learning curve. If you’ve already decided day trading might be right for you, this is where your financial planning starts.
What Is the Minimum to Start Day Trading in 2026?
The minimum amount you need to start day trading depends on what you’re trading, which account type you use, and — as of April 2026 — a regulatory landscape that just shifted dramatically.
For U.S. stock day trading in a margin account, the regulatory minimum has dropped from $25,000 to approximately $2,000 following the elimination of the Pattern Day Trader rule. Before April 2026, you needed $25,000 in equity just to make more than three day trades per week. That barrier is gone.
For U.S. stock day trading in a cash account, there’s no specific minimum at all. You can trade with whatever you deposit, as long as you use settled funds. Many brokers have no minimum deposit requirement.
For futures trading, you can open an account with as little as $500–$2,000 depending on your broker, with micro contracts requiring day trading margins as low as $50–$300 per contract.
For forex, some brokers let you start with $100–$500 using micro lots.
Those are the numbers that get you through the front door. But here’s the question that actually matters: is the minimum enough to survive?
No. Not even close.
Think of it this way. The broker minimum is the price of a gym membership. It gets you inside the building. But showing up on day one and trying to bench press 300 pounds because you’re technically allowed to is a fast track to the emergency room. You need a plan, a progression, and — critically — enough resources to absorb the inevitable early setbacks.
The rest of this article is about that real number: the functional capital you need to trade responsibly, manage risk properly, and survive long enough to actually learn.
The PDT Rule Is Gone: What This Means for Your Starting Capital
If you’re reading this in 2026, you’re witnessing the biggest structural change to retail trading access since online brokers eliminated commissions.
On April 14, 2026, the SEC granted accelerated approval of FINRA’s proposal to eliminate the Pattern Day Trader framework entirely. The $25,000 minimum equity requirement that had defined the boundaries of U.S. stock day trading since 2001 is officially done. The “pattern day trader” designation — the system that counted your day trades and flagged your account after four in five business days — no longer exists.
What replaced it is a risk-based intraday margin system. Instead of a flat dollar threshold, brokers now calculate your buying power dynamically based on the actual risk of the positions you hold during the day. The new minimum to hold a margin account is approximately $2,000 — the standard threshold that already existed for opening any margin account.
FINRA will issue a Regulatory Notice with an effective date 45 days from publication, putting the likely go-live in late May or early June 2026. Brokers have up to 18 months to fully implement. Some — like Webull and Cobra Trading — have announced they’ll transition immediately. Others may take longer.
The critical caveat: until your specific broker transitions to the new system, the old rules may still apply to your account. Check with your broker directly before changing your trading behavior. We cover the full timeline, implementation details, and what exactly replaced the rule in our PDT Rule Explained guide.
Now — here’s what this does NOT change.
The PDT rule was a regulatory barrier. Its removal doesn’t change the mathematical reality of small accounts. A $2,000 account with 1% risk per trade means you’re risking $20 per trade. On a $50 stock, that’s roughly 40 shares with a 50-cent stop loss. The profit potential on winning trades is tiny. The room for error is nonexistent. And after a string of five losing trades — which happens to every trader — you’re down 5% and the psychological pressure becomes crushing.
The elimination of the PDT rule is great news for trader freedom. But it’s also removed a guardrail that, for all its frustrations, prevented some beginners from blowing up small accounts faster than they could learn. More access means more opportunity — and more rope to hang yourself with if you’re not prepared.
Broker Minimums vs. Functional Capital: Why the Real Number Is Higher
This is the distinction that separates traders who survive from traders who become a statistic. There are three numbers that matter, and most beginners only know the first one.
Number 1: The Broker Minimum (The Price of the Ticket)
This is the smallest amount your broker requires to open an account. For many commission-free brokers, it’s literally $0. For a margin account, it’s typically $2,000. This number gets you through the door. That’s all it does.
Number 2: The Regulatory Minimum (The Legal Threshold)
Before April 2026, this was $25,000 for pattern day traders in margin accounts. Now, it’s roughly $2,000. For cash accounts, futures, and forex, there’s no day-trading-specific regulatory minimum. This number keeps you legal. It doesn’t keep you alive.
Number 3: Functional Capital (The Survival Number)
This is the amount you actually need to implement a real strategy, manage risk using the 1% rule, absorb a string of inevitable losses, and trade without the crippling stress of watching every dollar. Functional capital isn’t just about having enough to trade — it’s about having enough that losing on any single trade doesn’t destroy your ability to think clearly.
Here’s a concrete example that makes this real. Say you open a margin account with $3,000 — technically legal under the new rules. You follow best practices and risk 1% per trade. That’s $30 per trade. With a 2:1 reward-to-risk ratio, your winners average $60 and your losers average $30.
Now imagine you hit five losers in a row. That’s not unusual — it happens to every trader, even profitable ones. You’re down $150, or 5% of your account. Manageable? Mathematically, yes. Psychologically? For a brand-new trader watching their tiny account shrink, it feels catastrophic. The temptation to abandon your risk rules, double down, or “make it back” on one big trade becomes overwhelming.
That psychological trap is exactly why functional capital matters more than regulatory minimums. You need enough money that normal losing streaks don’t trigger panic decisions. For a deeper understanding of how position sizing interacts with your account size, read our Position Sizing for Beginners guide.
How Much Capital Do You Need by Market?
Different markets have different capital requirements because they have different price structures, leverage rules, and risk profiles. Here’s what each one actually costs to trade responsibly.
U.S. Stocks — Margin Account
With the PDT rule eliminated, you can technically day trade stocks in a margin account with about $2,000. But functional capital for stock day trading starts higher — and for good reason.
Stock prices range from single digits to hundreds of dollars per share. To build meaningful positions with proper stop losses, you need enough capital to buy 50–500 shares of the stocks you’re targeting. A trader focused on $20–$50 stocks needs at least $5,000–$10,000 to take positions that allow for reasonable stop-loss distances without risking too much of the account on a single trade.
If you plan to trade higher-priced stocks — think anything above $100 per share — you’ll want $15,000 or more. And the old wisdom about having a buffer above the PDT threshold? That psychology still applies. Having capital you don’t need to use reduces pressure. Our team recommends a minimum of $10,000–$15,000 for stock day trading in a margin account, with $25,000–$30,000 being the comfort zone where risk management math starts working in your favor.
U.S. Stocks — Cash Account
Cash accounts have no regulatory minimum for day trading and zero leverage. You trade with what you have, and under T+1 settlement, your capital from a sale is available the next business day. The practical strategy is to split your capital into “buckets” and rotate them.
With $5,000 in a cash account, you could make 1–2 day trades per day using $2,000–$2,500 per trade while the rest settles. It’s slower. It forces selectivity. But it also protects you from overleveraging — which, for a beginner, is actually a feature.
Our recommendation for cash account day trading: $5,000–$10,000. Enough to rotate capital effectively under T+1, with room to absorb losses. For a full comparison of margin and cash accounts, see our Margin vs. Cash Accounts guide.
Futures — Micro Contracts
This is where small accounts get interesting. Futures are regulated by the CFTC, not FINRA, so there’s no PDT-type restriction — and that was true even before the rule was eliminated for stocks. Micro E-mini contracts — like the Micro S&P 500 (MES) at $5 per point, or the Micro Nasdaq (MNQ) at $2 per point — offer serious market exposure at a fraction of the capital.
Day trading margins for micro futures run as low as $50–$300 per contract at many brokers. But margin isn’t the same as functional capital. With MES, a 10-point stop loss costs $50. At 1% risk, you’d need a $5,000 account to trade one contract with that stop distance.
Our recommendation: $3,000–$5,000 minimum for Micro E-mini day trading, with $10,000 being the point where you can trade 1–2 contracts comfortably with proper risk management. We break down the differences between stocks, futures, forex, and crypto in our Day Trading Markets guide.
Forex
Forex brokers offer micro lots (1,000 units of currency) with extremely low margin requirements — sometimes as little as $50 per position. You can start with $500. Whether you should is another question entirely. Forex leverage in the U.S. can reach 50:1, which means a $500 account controls $25,000 in currency. That leverage cuts both ways — violently. A 2% move against you on a fully leveraged position wipes out your account.
Our recommendation: $2,000–$5,000 for forex day trading with micro lots and strict leverage limits. Enough to absorb normal drawdowns without margin calls.
The Silent Account Killer: Why Undercapitalization Destroys Traders
Our team has watched more accounts blow up from being underfunded than from any other single cause. It’s not that these traders lacked intelligence or work ethic. It’s that trading with too little capital creates a psychological environment where good decisions become almost impossible.
It breaks your risk management. When you’re trading a $2,000 account, the 1% rule means risking $20 per trade. A great winner at 2:1 reward-to-risk earns you $40. After commissions and slippage, maybe $35. That doesn’t feel like progress. The temptation to risk 5% or 10% per trade — “just this once” — becomes enormous. And that’s how accounts get destroyed: one oversized bet at a time.
It limits your opportunities. Want to trade a quality mid-cap stock at $75 per share? With $3,000, you can afford 40 shares — and a 50-cent stop loss risks $20, or less than 1% of your account. The math works. But your profit on a $1.00 winner is just $40. Meanwhile, a trader with $15,000 can take 200 shares of the same setup, risk $100 (still under 1%), and make $200 on the same winning trade. Same skill, same market, five times the income — purely because of capital.
It amplifies the emotional damage of every loss. When your account is tiny, every loss feels outsized relative to your total capital. A $60 loss on a $3,000 account is 2%. That’s within normal risk parameters. But psychologically, watching your small account drop from $3,000 to $2,940 — knowing it took days to earn that $60 back — creates anxiety that poisons your decision-making. You start hesitating on good setups, holding losers too long, and cutting winners too short.
The research is clear on this. A study tracking over 1,600 Brazilian day traders found that 97% lost money, and only 1.1% earned more than the minimum wage. Underfunded traders face the steepest odds because they’re fighting the math of small numbers while simultaneously fighting their own fear response.
If you can’t afford to lose your starting capital entirely — without it affecting your rent, food, or financial stability — you can’t afford to day trade yet. That’s not pessimism. It’s the most important financial advice in this entire article.
The Hidden Costs That Shrink Your Starting Capital
Your starting capital isn’t just for trading. It needs to cover the operational costs of running a day trading business — and most beginners dramatically underestimate what those costs actually are.
Commissions and fees still exist, even in the “commission-free” era. Brokers like Robinhood and Webull don’t charge per-trade commissions on stocks, but they route orders through payment for order flow — which means slightly worse execution prices. Active traders using direct market access brokers pay $0.003–$0.005 per share, which adds up fast at 200+ trades per month. Options trades typically carry per-contract fees. Futures commissions run $0.50–$2.00 per contract per side.
Platform and data fees are the cost of doing serious trading. Real-time market data, Level 2 quotes, charting software, and stock scanners aren’t free. Budget $50–$400 per month depending on your setup. A quality scanner like Trade Ideas — which our team uses daily for finding high-probability setups — is a genuine business expense, not a luxury. Check our Trade Ideas coupon page for the latest savings. We break down the full tool stack — what’s essential, what’s optional, and what to skip — in our Day Trading Toolkit.
Slippage is the invisible cost. Every time you enter or exit a trade at a price slightly worse than expected — which happens constantly in fast-moving stocks — you’re losing a fraction of your theoretical profit. Over hundreds of trades, slippage can consume 10–20% of your gross returns.
Taxes are the cost nobody plans for. Day trading profits are taxed as short-term capital gains at your ordinary income tax rate — potentially 22–37% at the federal level, plus state taxes. A trader who grosses $10,000 in profits might take home only $6,000–$7,000 after the tax bite. We cover the full tax landscape in our Day Trading and Taxes guide.
When you add commissions, platform fees, slippage, and taxes together, the real cost of day trading can consume 30–50% of your gross profits. Factor these into your starting capital calculation, or you’ll be surprised when your account doesn’t grow the way your spreadsheet predicted.
Our Team’s Capital Recommendations by Experience Level
Enough theory. Here’s what our team actually recommends based on where you are in your trading journey.
Complete Beginners (0–6 months of study): Start with $0 in a live account. That’s not a typo. Paper trade first. Learn chart reading, order types, and basic strategy in a simulator with zero real money at risk. Your “starting capital” at this stage is whatever you invest in education — books, courses, and screen time. Every dollar spent learning before you trade live is a dollar you won’t lose to ignorance. Our Paper Trading guide explains why this step isn’t optional.
Ready for Live Trading — Small Account (6+ months of practice): For stocks in a cash account, $5,000–$10,000. For micro futures, $3,000–$5,000. For forex with micro lots, $2,000–$5,000. The goal at this stage isn’t income — it’s proving that your strategy works with real money and real emotions. Trade the smallest position sizes your broker allows. Treat losses as tuition payments for the most important education of your trading career.
Developing Trader — Growing Account (1+ year of live trading): For stocks in a margin account, $15,000–$30,000. For futures (micro and mini), $10,000–$25,000. At this stage, you should have enough data in your trading journal to know your win rate, average winner, average loser, and whether your strategy has a genuine edge. Capital at this level lets you take meaningful positions while keeping per-trade risk at or below 1%.
Consistent Trader — Scaling Up (2+ years, proven profitability): $50,000+ for stock day trading. $25,000+ for futures. At this level, the math starts working seriously in your favor. A 3% monthly return on $50,000 is $1,500 — not life-changing, but real supplemental income. The same 3% on $100,000 is $3,000. Capital is the ultimate multiplier. Same skill, same percentage, completely different outcome. Our Realistic Day Trading Income guide runs the full math across every account size.
The pattern here is clear: start small, prove your edge, then scale. Nobody should be funding a $30,000 live trading account in their first month. The market will be here when you’re ready. Rushing the timeline is the single most expensive mistake a beginner can make.
Year One Is Tuition: How to Think About Your Starting Capital
Here’s the mental shift that could save you thousands of dollars and months of frustration.
Your first year of day trading is not an income-generating activity. It’s education. The money you put into your first live account isn’t “trading capital” — it’s tuition. And like any serious education, some of it will be spent on lessons you’d rather not have learned.
The research supports this timeline overwhelmingly. Academic studies consistently show that 80–97% of new day traders lose money, with only 1–4% achieving consistent long-term profitability. A FINRA report found that 72% of day traders ended the year with losses. Forty percent quit within the first month. Only 13% were still active after three years.
Those numbers aren’t meant to scare you off. They’re meant to calibrate your expectations. If you walk into day trading expecting to replace your salary in month three, you’ll make desperate decisions and lose everything. If you walk in knowing that Year One is about building skills — and you budget accordingly — you’ll make patient decisions that keep you in the game long enough to actually develop an edge.
Here’s what we recommend. Before you fund a live account, set a “tuition budget” — an amount you can afford to lose completely without it affecting your life. This is money you’ve already mentally written off. If you lose it all, you don’t go into debt, you don’t miss rent, you don’t panic. You learn from it and decide whether to reload.
For most people, that tuition budget is $3,000–$10,000. Set it. Stick to it. And if you burn through it before you’re profitable, step back to paper trading, study what went wrong, and don’t reload until you’ve identified and fixed the problem. The traders who survive are the ones who treat their capital with respect — not the ones who throw money at the market hoping something sticks.
With the PDT rule gone, more people than ever will have access to day trade freely. The door is wide open. But walking through that door prepared — with realistic expectations, proper capital, and a plan for the learning curve — is the difference between becoming part of the 3% who profit and the 97% who don’t.
What’s Next in Your Day Trading Journey
You now understand the real capital requirements — not the broker minimums or the social media fantasies, but the functional numbers that give you an honest chance. The next question is equally practical: how much time does this actually take? Day trading isn’t a passive activity you squeeze into a lunch break. It demands dedicated hours, structured routines, and more screen time than most beginners expect.
→ Next Article: Time Commitment: How Much Time Does Day Trading Actually Take?
Frequently Asked Questions
Can I start day trading with $100?
Quick Answer: Technically yes, in some markets — but it’s not realistic for meaningful learning or income. Most $100 accounts are effectively gambling due to the impossibility of proper risk management at that capital level.
With $100, the 1% risk rule gives you $1 per trade. That’s not enough to cover commissions in most markets, let alone generate any meaningful profit. Forex with micro lots is the only market where $100 is even functional, and even then, a few losing trades could wipe your account. The one legitimate use of a $100 account is as a “skin in the game” supplement to paper trading — you get the emotional experience of real money without meaningful financial risk.
Key Takeaway: If $100 is all you have, paper trade until you’ve saved more. The market will still be there when your capital matches your ambition.
Do I still need $25,000 to day trade stocks?
Quick Answer: No. The SEC eliminated the $25,000 Pattern Day Trader requirement on April 14, 2026. The new regulatory minimum for a margin account is approximately $2,000.
The PDT designation — which flagged traders who made four or more day trades in five business days — no longer exists under the new framework. Brokers are transitioning to a risk-based intraday margin system where your buying power is calculated dynamically. However, individual brokers may set their own internal minimums above $2,000, and the transition is rolling out throughout 2026. Check with your specific broker for their implementation timeline. For the full story, see our PDT Rule Explained guide.
Key Takeaway: The regulatory barrier is gone, but $2,000 is a survival minimum, not a functional one. Aim for $10,000+ for stock day trading.
How much money do I need to day trade futures?
Quick Answer: You can technically start trading Micro E-mini futures with $500–$2,000 at some brokers, but $3,000–$5,000 is a more realistic functional minimum for responsible risk management.
Micro E-mini contracts — like MES (Micro S&P 500) at $5 per point or MNQ (Micro Nasdaq) at $2 per point — offer meaningful market exposure at a fraction of standard contract capital. Day trading margins can be as low as $50–$300 per contract, but margin isn’t your risk budget — it’s just collateral. A 10-point stop on MES costs $50, so at 1% risk, you’d want at least $5,000 in your account. We compare all major trading markets in our Day Trading Markets guide.
Key Takeaway: Micro futures are the most accessible path for small accounts — but “accessible” and “safe” aren’t the same thing. Size your account to your risk, not your margin.
What’s the difference between a cash account and a margin account for day trading?
Quick Answer: A cash account lets you trade only with the money you’ve deposited — no borrowing, no leverage, and no PDT-related restrictions. A margin account lets you borrow from your broker for up to 4:1 intraday buying power, but comes with margin call risk and interest charges.
With the PDT rule eliminated, the biggest historical disadvantage of margin accounts for small traders — the $25,000 minimum — is gone. But cash accounts still offer a major advantage for beginners: built-in risk protection. You can’t lose more than you’ve deposited, and the T+1 settlement cycle forces you to be selective about your trades. For a full comparison, including settlement rules, violations, and which account type fits your capital level, read our Margin vs. Cash Accounts guide.
Key Takeaway: Cash accounts are safer for beginners learning the ropes. Margin accounts unlock more power — and more risk — once you’ve developed discipline.
How much should I risk per trade as a beginner?
Quick Answer: No more than 1% of your account per trade. On a $10,000 account, that’s $100 maximum risk per trade. On a $5,000 account, it’s $50.
The 1% rule exists because it ensures survival through losing streaks. Even ten consecutive losers — which happens — only draws your account down roughly 10%. That’s recoverable. At 3% risk per trade, those same ten losers cost you 30% of your account, which requires a 43% gain just to get back to breakeven. The math of recovery gets brutal very quickly. This is why your account size matters so much — it determines how much room you have within that 1% to take meaningful positions. We cover the complete calculation in our Position Sizing for Beginners guide.
Key Takeaway: The 1% rule isn’t conservative — it’s the bare minimum for survival. Your account size determines what that 1% actually looks like in dollars.
Is it better to start day trading with stocks, futures, or forex?
Quick Answer: For most U.S.-based beginners, stocks in a cash account or Micro E-mini futures are the best starting points. Stocks are intuitive and widely covered in educational content. Micro futures offer the best capital efficiency for small accounts.
Each market has genuine tradeoffs. Stocks are familiar and liquid but require more capital for meaningful positions. Futures offer incredible leverage and low capital requirements but move fast and can amplify losses. Forex has the lowest barrier to entry but the highest available leverage — which is dangerous for beginners. Our team generally recommends starting with whatever market you can trade comfortably at 1% risk with your available capital. For most people with $5,000–$10,000, that’s either stocks or micro futures.
Key Takeaway: Pick one market, learn it deeply, and don’t spread yourself thin. Mastery beats diversification at the beginner level.
How long does it take to become a profitable day trader?
Quick Answer: Most consistently profitable traders took 12–24 months of dedicated study and practice to reach that point. Some took longer. A small minority — with strong analytical backgrounds and exceptional discipline — achieve it faster.
Academic research paints a challenging picture: only about 13% of day traders remain active after three years, and only 1–4% achieve consistent profitability. But here’s the nuance the statistics miss — the traders who fail overwhelmingly share certain patterns: they underfund their accounts, skip paper trading, ignore risk management, and overtrade. The ones who succeed almost always followed a structured learning path. For the mental framework that separates survivors from statistics, see our Day Trader’s Mindset guide.
Key Takeaway: Budget 12–24 months and treat Year One as education. If you’re profitable sooner, great — but don’t plan your finances around it.
Can I day trade while working a full-time job?
Quick Answer: Yes, and for most beginners, keeping your job while learning to trade is the smartest financial decision you can make. Your salary removes the pressure to generate immediate trading income — which dramatically improves your decision-making.
The first 1–2 hours after the market open (9:30–11:30 AM ET) contain the highest volume and the best setups. Many part-time traders focus exclusively on this window. Futures markets are open nearly 24 hours, giving flexibility for different work schedules. The key is having a dedicated pre-market routine and a specific strategy for the time you have available. We cover exactly how much time different approaches require in our Day Trading Time Commitment guide.
Key Takeaway: Keep your job. Trade the open. Build your skills and account over 12+ months before even considering full-time trading.
What’s the biggest mistake beginners make with their starting capital?
Quick Answer: Risking too much per trade because their account is too small to make meaningful profits at 1% risk. This forces oversized positions that lead to catastrophic losses.
It’s a vicious cycle. Small account → tiny profits at proper risk levels → frustration → oversized positions → big loss → panic → even bigger position to “make it back” → account blown. Our team has seen this exact pattern destroy thousands of trading accounts. The fix is straightforward but requires patience: start with enough capital that 1% risk produces positions worth taking, or accept that your early months are about skill-building, not income-building.
Key Takeaway: If your account is so small that proper risk management feels pointless, your account is too small. Save more before trading live, or switch to paper trading.
What hidden costs should I budget for beyond my trading capital?
Quick Answer: Plan for $100–$500 per month in operational costs: market data subscriptions, charting platforms, scanner tools, internet upgrades, and potential education resources. Also reserve 25–35% of any profits for taxes.
Many beginners focus entirely on their trading account balance and forget that day trading is a business with overhead. Real-time Level 2 data costs $10–$30/month at most brokers. Quality charting software ranges from free (TradingView’s basic plan) to $100+/month for advanced features. Stock scanners run $50–$200/month. And the IRS treats your profits as ordinary income — not long-term capital gains — meaning you’ll pay your full marginal tax rate on every dollar earned. Build these costs into your startup budget so they don’t ambush you.
Key Takeaway: Budget for a minimum $200/month in operational costs on top of your trading capital, and set aside 30% of profits for taxes from day one.
Disclaimer
The information provided in this article is for educational purposes only and should not be considered financial advice. Day trading involves substantial risk and is not suitable for every investor. Past performance is not indicative of future results.
For our complete disclaimer, please visit: https://daytradingtoolkit.com/disclaimer/
Article Sources
Our team builds every article from verified, authoritative sources. The capital recommendations in this article are informed by academic research on day trader profitability, official regulatory filings, and our team’s direct trading experience across multiple markets.
- SEC Order Granting Accelerated Approval — SR-FINRA-2025-017 (Release No. 34-105226) — The SEC’s April 14, 2026 order eliminating the Pattern Day Trader framework and approving risk-based intraday margin standards.
- Federal Register: Notice of Accelerated Approval (April 17, 2026) — Official Federal Register publication of the SEC’s approval with implementation timeline details.
- FINRA — Rule 4210 (Margin Requirements) — The FINRA rule governing margin requirements, including the former day trading margin provisions now replaced by intraday margin standards.
- Barber, Lee, Liu & Odean — “The Cross-Section of Speculator Skill” (UC Davis) — Foundational academic research analyzing the complete trading records of day traders in the Taiwanese stock market, finding that less than 1% consistently profit.
- Chague, De-Losso & Giovannetti — “Day Trading for a Living?” (São Paulo School of Economics) — Study of 1,600+ Brazilian day traders finding that only 3% were profitable and only 1.1% earned above minimum wage.
- CME Group — Micro E-mini Futures Contract Specifications — Official contract specifications and margin requirements for Micro E-mini S&P 500 (MES) and related micro futures products.
