Trading — Instruments, Accounts & Mechanics

Each market has its own mechanics, risk profile, and behavior. Understanding these differences directly affects how you size positions, manage risk, and interpret price action.

Stocks (Equities)

A share of stock represents fractional ownership in a company. Unlike futures or options, you own something real — there's no expiration, no funding cost, and your maximum loss is your investment. Stock prices reflect the market's collective assessment of a company's current and future value, driven simultaneously by earnings, guidance, macro conditions, sector trends, and sentiment.

What Creates the Big Moves

• Earnings beats or misses — especially combined with guidance changes
• Revenue growth or contraction relative to analyst expectations
• FDA approvals or rejections, product launches, patent news
• Sector rotation — institutional money moving from one industry to another
• Analyst upgrades/downgrades, especially from major banks
• Short squeezes on high short interest stocks

Why Liquidity Matters More Than People Think

AAPL trades $10B+ per day — a $50,000 order doesn't move the price. A micro-cap stock trading $100,000 total on a slow day will move significantly before you're even filled. Wide spreads compound the problem: on a $2 stock with a $0.10 spread, every trade starts 5% in the hole before the market moves.

Options

Options give the buyer the right — not the obligation — to buy (call) or sell (put) 100 shares at a fixed price before a set date. Three forces affect an option's price simultaneously: direction the stock moves, time remaining, and implied volatility. A stock can move exactly where you expected and your option can still lose money.

Full mechanics below: Calls & Puts, The Greeks, IV Crush.

Futures

Futures are contracts to buy or sell an asset at a predetermined price at a future date. Most retail traders never take delivery — they trade the price movement and close before expiration.

The critical distinction from stocks: when you buy a stock, you pay the full price. When you trade a futures contract, you post a fraction of the notional value as margin. Leverage is built into the instrument — you don't choose it. A single ES contract at 5,000 controls $250,000 of notional exposure. Every 1-point move = $50 P&L per contract.

Full mechanics: Points & Ticks, P&L Calculation, Margin Types, Auto-Liquidation.

Forex

Forex means buying one currency while simultaneously selling another — you're always betting on the relative value of one vs. another. Currencies are driven by interest rate differentials, inflation data, central bank policy, and macroeconomic strength. Forex is fundamentally macro-driven in a way individual stocks are not.

Crypto

Crypto assets trade 24/7. No open, no close, no halts. Bad news can hit at 3 AM and your leveraged position can be liquidated before you wake up. BTC and ETH have reasonable liquidity on major exchanges. Below that tier, liquidity drops dramatically — altcoins can gap 20–30% with no meaningful catalyst.

Spot vs. Perpetual Futures

Spot: You own the actual asset. Maximum loss is your investment. No expiration, no funding costs.

Perpetual Futures: Leverage-based contract. No expiration, but you pay or receive funding continuously. At 100x leverage, a 1% adverse move is a complete liquidation of your margin.

Cash Accounts

A cash account means you can only trade with money you've actually deposited — no borrowing. Trades settle T+1 (one business day). Using unsettled funds to trade again is a good faith violation; repeated violations result in account restrictions.

Margin Accounts

A margin account lets you borrow from your broker to trade — typically 2:1 overnight and up to 4:1 intraday. The broker charges interest on borrowed funds. If positions lose enough value, you receive a margin call — deposit more or have positions liquidated. Margin accounts unlock short selling and advanced options strategies, but PDT rule applies if your account is under $25,000.

Pattern Day Trader (PDT) Rule — Full Context

A day trade = opening AND closing the same position on the same day. If classified as PDT with under $25,000 equity, you're limited to 3 day trades per rolling 5-business-day period. Cross $25,000 and the restriction lifts.

Futures Accounts

Futures accounts are regulated by the CFTC and NFA — not FINRA, which is why PDT doesn't apply. You need enough to cover the initial margin for your contracts plus a meaningful buffer above that. Trading MES with a $500 margin requirement in a $600 account means any normal fluctuation can trigger auto-liquidation.

Funded / Prop Accounts

Funded trading programs provide access to a larger capital base after passing an evaluation (the "challenge") and sharing a percentage of profits (typically 70–90% to you). Pay a challenge fee ($100–$700+), pass profit targets without breaching drawdown limits, get a funded account.

• Drawdown limits are often tight and measured from starting balance — a normal losing streak can fail you
• Consistency rules and daily loss limits are complex — violations mean no refund
• Payout reliability varies by firm — research independently before paying
• Some firms have shut down without warning, keeping challenge fees

Futures Mechanics — Points, Ticks & Notional Value

Margin figures are approximate and change with volatility. Always verify with your broker.

P&L Calculation

Margin: Initial, Maintenance & Overnight

Futures margin is a performance bond — not a down payment, not a loan.

Initial Margin: Required to open a position. Some brokers offer lower intraday rates during RTH. If you're still holding at RTH close, full overnight margin kicks in automatically.

Maintenance Margin: Minimum equity to keep the position open. Fall below this and your broker can liquidate immediately — no call, no warning.

Overnight Margin: Full exchange margin applies past RTH close — typically 2–5x the intraday rate.

Auto-Liquidation

To avoid this: never allow your account to approach maintenance margin. Keep a 3–5x buffer per contract in excess equity beyond your positions. Set your own stop loss well before the broker's margin line.

Risk Sizing — Practical Framework

Position sizing in futures is not "how many contracts can I afford." It's "how many contracts can I hold where my stop loss represents a dollar amount I can accept losing."

Options Mechanics — Calls & Puts

The Greeks — Practical Understanding

Delta (Δ) — Directional Exposure

How much the option price changes per $1 stock move. Delta 0.50 = $50 per contract per $1 stock move. Calls: 0 to +1. Puts: 0 to −1. ATM ≈ 0.50. Deep ITM approaches 1.0. Deep OTM near 0. Delta also approximates the probability of expiring ITM.

Gamma (Γ) — Rate of Delta Change

How fast delta changes as the stock moves. Highest for ATM options near expiration — this is why 0DTE options move so violently. A small stock move creates a rapid delta shift. For sellers, high gamma means a neutral position can become large directional risk fast.

Theta (Θ) — Time Decay

The daily loss in option value from time passing alone. Negative for buyers (you lose it every day), positive for sellers (you collect it). Accelerates sharply in the final 30 days. Non-linear — the decay curve steepens dramatically near expiration.

Vega — Volatility Sensitivity

How much the option price changes per 1% change in implied volatility. Before events: IV rises → vega works for long options. After events: IV collapses → vega works against you even if direction was correct.

Rho — Interest Rate Sensitivity

Sensitivity to interest rate changes. Mostly irrelevant for short-dated options. Matters for LEAPS (long-dated options over a year out) where rate changes affect pricing meaningfully.

Implied Volatility & IV Crush

IV is the market's forward-looking expectation of movement — derived from option prices themselves, not historical data. High IV = expensive options. Low IV = relatively cheap options.

When a known catalyst approaches, uncertainty increases and IV rises. Once the event resolves — good or bad — uncertainty disappears and IV collapses immediately. You were paying for uncertainty. Once it resolved, that premium evaporated from your option's value.

Assignment Risk

If you sell options, you can be assigned at any time before expiration (American-style options). Assignment means you're forced to fulfill the contract terms — buying or selling 100 shares at the strike price.

• Early assignment is more likely when the option is deep ITM with little extrinsic value remaining
• Selling a naked call without stock = potentially forced to deliver shares you don't own
• Assignment happens overnight — you may wake up to a stock position you didn't plan for

Chart Structure — Trends

Uptrend: Higher Highs + Higher Lows (HH/HL) — buyers in control, willing to pay more each time, stepping in earlier on dips.

Downtrend: Lower Highs + Lower Lows (LH/LL) — sellers in control; buyers aren't defending levels.

Trend change: First sign is failure to make a new high (in an uptrend). Then structure begins to flip — a lower high forms, then a lower low. One candle isn't evidence. Structure is.

Support & Resistance

Support and resistance are zones, not lines. Price doesn't reverse at an exact decimal — it reacts within a range where enough participants made decisions in the past. When support breaks convincingly, it often flips to become resistance. Traders who bought at that level are trapped and will sell to break even on the return.

Breakouts vs. Fakeouts

Fakeouts are common and often engineered. Retail traders cluster stops at obvious levels. Larger participants push price to those levels for execution — causing what looks like a breakout that immediately reverses.

Signs of a genuine breakout: Volume significantly above average, price holds above the broken level for multiple candles, broken level retests and holds as new support, momentum indicators confirm the move rather than diverge.

Volume & Confirmation

• High volume on a move = more participation, more likely to continue
• Low volume on a move = less participation, more susceptible to reversal
• Climax volume (extremely high spike at price extremes) can signal exhaustion, not continuation
• Volume declining on a pullback within a trend = healthy pullback
• Volume increasing on a pullback = potential trend change in progress