API Tutorial (Part 3): Fetching Public Data

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Understanding Latest Price, Index Price, and Mark Price

In trading interfaces, you'll encounter three key price types:

  1. Latest Price: Real-time transaction price from the order book.
  2. Index Price: Calculated using weighted averages from multiple major exchanges to anchor contract values (e.g., USD index for coin-margined contracts).
  3. Mark Price: Used to prevent unnecessary liquidations by reflecting fair market value.

Key Differences


K线 Basics #12: Head-and-Shoulders Top Pattern

Identifying the Pattern

A head-and-shoulders top signals a bullish-to-bearish trend reversal, resembling a human silhouette:

  1. Left Shoulder: Initial peak followed by a decline.
  2. Head: Higher peak with another drop.
  3. Right Shoulder: Lower peak before a final downturn.

👉 Master chart patterns for strategic exits

Trading Implications


Strategy Trading: Spot Martingale

Introduction

Martingale is a high-probability strategy doubling bets after losses to recover profits. Originally from 18th-century France, it’s adapted for crypto markets.

How It Works

  1. Initial Trade: Open a position (e.g., buy BTC).
  2. Loss Recovery: Double the investment after each loss until a win offsets previous deficits.
  3. Risks: Requires substantial capital; market gaps or prolonged trends can deplete funds.

Switching DNS for Network Stability

Step-by-Step Guide

Windows 10/8.1

  1. Right-click This PCPropertiesControl PanelNetwork and Internet.
  2. Select Network and Sharing CenterChange adapter settings.
  3. Right-click your connection → PropertiesIPv4 → Enter preferred DNS (e.g., 1.1.1.1).

MacOS

  1. Go to System PreferencesNetwork.
  2. Select your connection → AdvancedDNS tab → Add new servers.

Arbitrage Order Execution

Why Arbitrage?

Methods

  1. Spatial Arbitrage: Buy low on Exchange A, sell high on Exchange B.
  2. Statistical Arbitrage: Algorithmic trading based on historical price correlations.

Digital Asset Options Primer

What Are Options?

Contracts granting the right (not obligation) to buy/sell assets at a set price before expiration.

Investor Advantages

👉 Explore options trading strategies


FAQ Section

Q1: How often should I update DNS settings?

A: Only when experiencing connectivity issues or switching to faster services like Google DNS (8.8.8.8).

Q2: Can Martingale strategy guarantee profits?

A: No—while it mathematically favors recovery, extreme volatility can exhaust capital.

Q3: Is head-and-shoulders reliable for all assets?

A: More effective in liquid markets (e.g., BTC/USDT) with clear volume patterns.

Q4: What’s the main risk in arbitrage trading?

A: Execution delays or exchange fees may erode profits.


Final Note: Always validate strategies with backtesting and consult financial experts before trading.