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MEXC Exchange/Learn/Sarah Chen
Sarah Chen

Sarah Chen

Nationality: Australia Bio: Sarah Chen specializes in DeFi protocols, smart contracts, and Layer-2 solutions. Based in Melbourne, she brings technical expertise and clear communication to complex blockchain topics. She holds a Bachelor's degree in Computer Science from the University of Melbourne and worked as a blockchain developer for three years before transitioning to technical writing. Her hands-on experience with Ethereum, Solana, and other platforms allows her to explain intricate concepts in accessible language. Since joining MEXC Learn in 2022, Sarah has focused on making blockchain technology understandable for all users, covering topics from DeFi yield farming to zero-knowledge proofs. Areas of Expertise: - DeFi Protocols - Smart Contract Analysis - Layer-2 Solutions - Blockchain Infrastructure - Protocol Security

Recent Articles

Best Exchange for AI Tokens: 9 Crypto Platforms, 4 AI Coins, Only 2 Covered All Four

Best Exchange for AI Tokens: 9 Crypto Platforms, 4 AI Coins, Only 2 Covered All Four

MEXC is our top pick for AI tokens within this nine-platform comparison. It was one of only two venues that ranked among the ten highest-volume markets for all four coins in our AI sample basket, and

2026-08-27

Best Exchange for RWA Tokens: We Checked 9 Platforms Across 5 RWA Layers

Best Exchange for RWA Tokens: We Checked 9 Platforms Across 5 RWA Layers

MEXC is our top pick for RWA tokens within this nine-platform comparison. It was the only venue in this comparison where we could verify all five RWA layers on first-party pages, from sector tokens

2026-08-27

What Is Invesco QQQ ETF? Nasdaq-100 Holdings, Strategy, Fees and Risks

What Is Invesco QQQ ETF? Nasdaq-100 Holdings, Strategy, Fees and Risks

Summary Invesco QQQ ETF (NASDAQ: QQQ) is an exchange-traded fund designed to track the Nasdaq-100 Index, which represents 100 of the largest non-financial companies listed on the Nasdaq Stock Market.

2026-08-27

What Is QQQON? Ondo Tokenized Invesco QQQ ETF Explained

What Is QQQON? Ondo Tokenized Invesco QQQ ETF Explained

Summary QQQON, styled by Ondo as QQQon, is a tokenized product designed to provide economic exposure linked to the Invesco QQQ ETF (NASDAQ: QQQ). The product structure has three important layers:

2026-08-27

Why Does QQQON Track QQQ? Tokenized ETF Premiums, Discounts and Price Differences Explained

Why Does QQQON Track QQQ? Tokenized ETF Premiums, Discounts and Price Differences Explained

Summary QQQON is designed to provide economic exposure linked to Invesco QQQ, while QQQ itself tracks the Nasdaq-100 Index. This creates a two-stage tracking structure: Nasdaq-100 Index ↓ QQQ ETF ↓

2026-08-27

QQQ Holdings 2026: Top Companies, AI Exposure and Nasdaq-100 Sector Breakdown

QQQ Holdings 2026: Top Companies, AI Exposure and Nasdaq-100 Sector Breakdown

Summary Invesco QQQ is often associated with U.S. Big Tech, but understanding QQQ holdings requires looking beyond the idea that it is simply a “technology ETF.” QQQ tracks the Nasdaq-100 Index,

2026-08-27

QQQ vs QQQM: What’s the Difference Between Invesco’s Nasdaq-100 ETFs?

QQQ vs QQQM: What’s the Difference Between Invesco’s Nasdaq-100 ETFs?

Summary QQQ and QQQM both provide exposure to the Nasdaq-100 Index. That often leads to a simple question: If both track the same index, why do both funds exist? The main differences are: Expense

2026-08-27

QQQ Price Prediction 2026–2030: AI, Interest Rates, Earnings and QQQON Outlook

QQQ Price Prediction 2026–2030: AI, Interest Rates, Earnings and QQQON Outlook

Summary Forecasting Invesco QQQ through 2030 requires forecasting the earnings and valuations of approximately 100 of the largest Nasdaq-listed non-financial companies. The most important variables

2026-08-27

Best Exchange for GameFi Tokens: 840 Coins, $3 Billion, and Not One in the Top 150

Best Exchange for GameFi Tokens: 840 Coins, $3 Billion, and Not One in the Top 150

MEXC is our top pick for GameFi tokens within this five-platform comparison. The sector's defining risk in 2026 is not the trading fee, it is losing access to a token you already hold: 141 gaming

2026-08-26

Best Crypto Airdrop Platforms: 8 Programmes Compared, One Opens at 5 MX

Best Crypto Airdrop Platforms: 8 Programmes Compared, One Opens at 5 MX

MEXC is our top pick among the crypto airdrop platforms in this comparison, on one number: Kickstarter eligibility opens at 5 MX held for 24 hours. That verdict needs a distinction the search results

2026-08-26

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