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The Cardano (ADA) stablecoin proposal #卡尔达诺稳定币提案 has become a hot topic that has attracted widespread attention in recent years. Recently, U.S. Senate Majority Leader John Thune stated that Senate Republicans are striving to advance a landmark stablecoin bill that would establish new regulations for digital tokens pegged to the dollar. The advancement of this bill may have significant implications for stablecoin projects like Cardano.

#以色列伊朗冲突 • Israel mobilized over 200 fighter jets to carry out the first round of strikes on dozens of targets related to Iran's nuclear program and military facilities, dropping over 330 munitions.
• In the second round of airstrikes, intense explosions occurred again in Tehran, Lorestan Province, and other areas, with reports of explosions in several provinces in western Iran.

#美国加征关税 美国近年来频繁加征关税，尤其在 2025 年对钢铁、铝等商品加征至 50%，并计划对华征收更高关税。这一政策引发广泛争议。根据最新报道，美国港口正面临冷清局面，首批被加征 145% 关税的货物抵达后，洛杉矶港的工人们面临失业风险。同时，中美经贸磋商仍在进行中，美国社会各界强烈反对提高关税，认为这只会伤害美国经济。

#加密圆桌讨论 Recently, the U.S. Securities and Exchange Commission (SEC) has intensified its regulation of the cryptocurrency industry, and tonight there will be an important crypto roundtable hosted by the SEC, themed "DeFi and the American Spirit." This meeting will be chaired by SEC Chairman Paul S. Atkins and will focus on DeFi infrastructure projects, expected to reveal key trends and regulatory directions for the future of the industry. This series of actions marks a shift by the SEC from traditional enforcement models to a more forward-looking regulatory strategy.

#实用交易工具 Source Quantitative Trading Framework (such as Zipline, Backtrader)​​
• ​​Features​​: Supports CTP, Futu, Binance and other 40+ exchange interfaces, providing event-driven architecture and asynchronous data processing.
• ​​Advantages​​: High flexibility, customizable trading logic and backtesting strategies.
​​AI Driven Trading System​​
• ​​Core Components​​: Event-driven engine, machine learning models (such as price prediction, volatility estimation).
• ​​Applicable Scenarios​​: High-frequency trading in financial markets such as stocks and futures.

The latest developments of the #纳斯达克加密ETF扩容 Nasdaq Crypto ETF show a significant trend of expansion, especially regarding the inclusion plans for emerging tokens. Currently, Nasdaq is actively promoting the benchmark expansion of the Hashdex Nasdaq Crypto Index ETF (NCIQ), expanding from the original 5 tokens to a broader range that includes 9 tokens, explicitly including Solana (SOL). This change signifies Nasdaq's further openness and recognition of the crypto market.

On May 9, #加密市场反弹 2025, Bitcoin (BTC) surged over 20% in a single day, reaching a high of $24.59. Ethereum (ETH) also performed strongly, with a nearly 75% increase in the last 24 hours. As of June 8, the market sentiment indicator 'Fear and Greed Index' climbed to 62 (Greed Zone), indicating a significant recovery in investors' risk appetite.

On June 9, 2025, the United States and China achieved phased results in their trade negotiations, holding the second round of high-level consultations in London, UK. This meeting focused on three core issues: tariff adjustments, rare earth resource management, and technology export restrictions, aiming to alleviate tensions between the two countries in the supply chain and high-tech sectors.
According to the 'Joint Statement of the Sino-U.S. Geneva Economic and Trade Talks,' the United States has suspended the implementation of 24% tariffs on China for 90 days and has reduced the highest tax rate from 145% to 30% (including 10% equivalent tariffs and 20% fentanyl tariffs), while canceling 91% of retaliatory tariffs. China, in turn, has committed to increasing its agricultural purchases from the United States and strengthening intellectual property protection.

#看懂K线 起源与定义​​

K 线图起源于 18 世纪的日本米市交易，最初用于表示米价变动。后经美国学者改进，应用于股票市场，被称为“蜡烛图”。每根 K 线由​​开盘价、收盘价、最高价、最低价​​四部分构成，通过实体（开盘价与收盘价的差值）和上下影线（最高价与最低价超出开盘价/收盘价的部分）反映价格波动。
​​K 线的“语言”​​
• ​​阳线​​：实体部分通常为红色，表示股价上涨，反映多方力量主导。
• ​​阴线​​：实体为绿色，表示股价下跌，反映空方力量主导。
• ​​十字星​​：实体极小或无实体，表示多空力量均衡，可能预示变盘。
• ​​影线作用​​：上影线反映股价上涨的阻力，下影线反映下跌的支撑。

#常见交易错误 情绪化交易​​
• ​​表现​​：受市场情绪驱动，追涨杀跌或盲目跟风。
• ​​案例​​：2025 年 6 月市场波动中，部分投资者因“早报利好”贸然入局，但市场已消化消息，导致亏损。
• ​​影响​​：丧失理性判断，增加交易风险。

#交易手续费揭秘 Fee Calculation Notes
1. Threshold Fee: Some brokerages set a minimum fee per transaction (e.g., 5 yuan); if it's below this amount, it will be calculated as 5 yuan.
2. Comprehensive Fees: Stock trading requires the payment of stamp duty, transfer fees, commissions, etc.; bonds and corporate bonds also incur additional taxes and fees.
3. Commission Competition: Brokerages may lower commission rates to attract clients, but rates that are too low may affect the brokerage's profitability and pose a risk of loss.

#特朗普马斯克分歧 The differences between Trump and Musk mainly revolve around policy ideas and interest demands. The core contradiction was ignited by the "Big and Beautiful Act" proposed by the Trump administration, which Musk criticized as "robbing the poor to pay the rich" and for increasing debt, leading to a rise in the fiscal deficit. Musk publicly criticized the act on social media and retweeted Trump's old tweets from 2012 and 2013 that criticized the Republican Party for raising the debt ceiling, mocking the contradictions in his policies.
Trump accused Musk of turning against him due to the removal of electric vehicle subsidies, claiming he has "gone crazy," and threatened to cut Tesla's government subsidies and contracts. The conflict between the two quickly escalated into a public feud, with Tesla's market value evaporating by over $150 billion in a single day. Although there were signs of détente later, analysts pointed out that this rupture fundamentally reflects the fragility of political-business relationships, with their differences in policy ideas and interest demands erupting through public attacks.

#加密安全须知 Set a High-Strength Password​​
• The password must include uppercase letters, lowercase letters, numbers, and special symbols, with a recommended length of more than 8 characters (e.g., P@ssw0rd!2025).
• Avoid using easily guessable information such as birthdays, phone numbers, and common words.
• Regularly change your password, especially when handling important documents.
​​Choose Reliable Encryption Tools​​
• Use compression software that supports strong encryption, such as WinRAR or 7-Zip, to encrypt important documents and compressed files.
• For sensitive files, consider using encryption software in conjunction with access control tools (such as BitLocker or FileVault).

Definition of Trading Pairs for #交易对
Trading pairs typically refer to the combination of two assets or currencies for trading. In the forex market, a trading pair usually consists of one currency against another (e.g., EUR/USD, USD/JPY). In the cryptocurrency market, a trading pair refers to the trading between two cryptocurrencies (e.g., BTC/ETH).
Selection of Trading Pairs
• Forex Market: The selection of trading pairs is usually based on economic fundamentals, interest rate differences, political factors, etc. Common trading pairs include the US dollar against the euro (USD/EUR), US dollar against the Japanese yen (USD/JPY), etc.
• Cryptocurrency Market: The selection of trading pairs is usually based on technical analysis, market sentiment, and project fundamentals. Popular trading pairs include Bitcoin against Ethereum (BTC/ETH), Bitcoin against Litecoin (BTC/LTC), etc.

Definition of Liquidity
• Widely Accepted Definition: A liquid market allows participants to conduct large transactions quickly with little impact on prices. This means that there are enough buy and sell quotes in the market, with narrow spreads, enabling investors to expect to complete transactions at average prices close to the current market price over a longer period.
• Definition by Black (1971): Liquidity is the ability to convert stock assets into cash and vice versa, involving the execution costs of the process of monetization or security conversion. A liquid market has a faster and lower-cost process for monetization or security conversion.
Measuring Liquidity
• Trading Volume: Liquidity can be measured by the size of trading volume. In a liquid market, the premium (discount) required for conducting transactions of the same size is smaller.
• Price Volatility: In a liquid market, the impact of trades on prices is smaller, and price volatility is not significant.
• Trade Wait Time: In a liquid market, completing a transaction typically requires a shorter wait time.

#订单类型解析 Price Order (Market Order)​​
• Executed immediately at the current market price, suitable for quick transactions or avoiding price volatility risks.
• Commonly used in forex trading for 'stop loss' or 'cash out'.
​​Limit Order​​
• Set a specific price, executed only when the market price reaches that level, suitable for locking in profits or stopping losses.
• Divided into 'buy limit order' and 'sell limit order'.

#中心化与去中心化交易所 • Centralized Exchange (CEX): Assets are directly controlled by users and stored in personal wallets or smart contracts. Transactions are automatically executed through smart contracts without the need to trust third-party institutions (e.g., Uniswap, 0x on Ethereum).
​​Trading Mechanism​​
• ​​CEX​​: Relies on a centralized limit order book (like Binance), similar to traditional financial markets, where users complete transactions after matching orders with the platform.
• ​​DEX​​: Uses an Automated Market Maker (AMM) mechanism, such as constant product (xAMM), constant rate (yAMM), etc., to exchange assets directly on the blockchain through smart contracts without a matching party.
​​Security and Privacy​​
• ​​CEX​​: Requires user identity verification (KYC), and asset custody poses risks of being tampered with or stolen by the platform, but the transaction transparency is relatively high (some platforms publish source code).
• ​​DEX​​: No identity verification is needed, providing stronger privacy protection, but users must manage their private keys and mnemonic phrases themselves, facing risks like smart contract vulnerabilities and key loss.
​​Transaction Fees and Liquidity​​
• ​​CEX​​: Transaction fees are lower (typically 0.1%-0.5%), with strong liquidity, supporting fiat transactions, suitable for beginners.
• ​​DEX​​: Transaction fees are higher (around 2%-5%), and liquidity depends on the popularity of the smart contract, with some DEXs supporting fiat exchange but with lower depth.

It may now be the breakthrough of the resistance level in the BTC bull market: In technical analysis, breaking through key resistance levels like $103,000 is seen as a sign of the beginning of a bull market. This price level is regarded as an important psychological barrier.
Market Sentiment: Technical indicators such as moving averages, Relative Strength Index (RSI), etc., may show that the market is overbought or provide buy signals, further supporting bullish expectations.
Investor Psychology
HODLer Optimism: For long-term Bitcoin holders, known as 'HODLers', the upward price movement means an appreciation of their assets, which may ignite their optimism.
Market Volatility: In the early stages of a bull market, the market may experience frequent fluctuations, and investors need to respond cautiously to short-term price volatility.

Spot trading is the buying and selling behavior of immediate delivery, where the trading parties negotiate the price and execute it immediately.
In the cryptocurrency space, it refers to real-time trading of Bitcoin and other cryptocurrencies; in forex, it refers to same-day trading of currency pairs (such as USD/EUR).
​​Features​​
​​24-hour trading​​: Global markets are open around the clock.
​​Leverage trading​​: Amplifies profits by borrowing funds (risk is also amplified).
​​High liquidity​​: Large transactions are easy to execute, but attention must be paid to market volatility risks.

#稳定币日常支付 Payment Tools
​​Visa Card​​: Some financial institutions have launched Visa cards for stablecoin users, allowing them to use stablecoins for travel and everyday purchases.
​​Mobile Payment Apps​​: Through mobile applications, users can easily manage and use stablecoins for payments.
Market Trends
​​Wide Acceptance​​: Over 100,000 merchants worldwide accept stablecoin payments, and stablecoins are becoming an important part of everyday payments and transactions.
​​Cost-Effectiveness​​: Compared to traditional payment methods, using stablecoins can reduce transaction costs, especially in cross-border payments.