Chicago, IL - April 30, 2025 - Financial Tech Wiz, a leading provider of trading education, released new data confirming that Wednesday, April 9, 2025, marked the third-biggest single-day percentage gain in history for the Invesco QQQ Trust (Nasdaq-100 ETF). QQQ surged about 12%, while the SPDR S&P 500 ETF (SPY) climbed 9.41%, after the U.S. administration announced a 90-day suspension of proposed import tariffs, instantly easing macro-fear that had gripped markets through late March.

“Our historical database shows the market’s most powerful upside shocks often erupt in the depths of pessimism,” said Mike Toney-Hoffman, founder of Financial Tech Wiz. “Missing even one day like April 9 can meaningfully dent long-term performance, which is why we study and publish these extremes.”

Top Nasdaq-100 Gain Days (Financial Tech Wiz calculations)

1. Jan 3, 2001 — 16.84 % (emergency Fed rate cut)
2. Oct 13, 2008 — 12.17 % (global bank-rescue plans)
3. Apr 9, 2025 — 12.00 % (90-day U.S. tariff suspension)
4. Oct 28, 2008 — 11.05 % (credit-market backstop)
5. April 18, 2001 — 10.42 % (rate cut)

Methodology: Percentage change from prior close to same-day close.

Why April 9 2025 Matters

• Sentiment whipsaw: The tariff pause reversed weeks of selling in semiconductor and cloud-software names, unleashing a buying frenzy that vaulted the Nasdaq-100 over 1,540 points in hours.
• Portfolio impact: Investors out of the market for a single session missed returns equivalent to multiple months of average performance.
• Historical rhyme: Nine of the ten biggest Nasdaq-100 rallies have occurred during bear-market stress, underscoring the cost of panic selling.

About Financial Tech Wiz

Financial Tech Wiz offers data-driven market research, platform reviews, and trading tools.. The site is known for combining rigorous analytics with plain-English education so traders can act confidently without hype.

Read the full study, “The 10 Best Days in Stock-Market History for SPY & QQQ,” at https://www.financialtechwiz.com/post/best-days-in-stock-market-history/.

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