ETF Rebalancing Calculator

Manage US stocks, Korean stocks, and ETFs in one place and auto-rebalance to your target allocation

Real-time US & KR stock prices
Auto buy/sell calculation
Cloud sync supported
Market Analysis2026-03-21

S&P 500 and Nasdaq Fall for Fourth Consecutive Week

The S&P 500 fell 1.51% and the Nasdaq dropped 2.01%, extending losses to a fourth consecutive week. With the VIX fear index surging to 26.78, investors are reassessing their portfolio allocations.

관리자

U.S. equities recorded a fourth consecutive weekly decline, heightening investor anxiety. The S&P 500 closed at 6,506.48, down 100.01 points (1.51%), while the Nasdaq Composite fell 443.08 points (2.01%) to 21,647.61. The VIX fear index surged to 26.78, signaling significantly elevated market volatility.

Behind Four Weeks of Losses

The decline stems from a convergence of factors: escalating geopolitical tensions in the Middle East with Iran-related war concerns, growing economic slowdown signals, and massive profit-taking in technology stocks. The S&P 500 has pulled back substantially from its yearly highs, and the Nasdaq is approaching technical correction territory with a decline of over 10% from its peak. The SPY ETF closed at $648.57, down $9.43 from the previous session.

VIX at 26.78: Reading the Fear Gauge

The VIX index spiked 11.31% in a single day to reach 26.78. Generally, VIX below 15 signals stability, 20-25 indicates caution, above 25 suggests anxiety, and above 30 means fear. Historical data shows the S&P 500 averaged 12%+ rebounds within six months from VIX levels above 25. Using an asset allocation calculator to review stock-bond ratios and increase defensive positioning is prudent.

Divergent Sector Performance

Even in a broad selloff, sector performance varies dramatically. Technology bore the brunt with SMCI plunging 33.32%, energy-related Vistra dropping 12.64%, and Constellation Energy falling 10.90%. Defensive sectors like healthcare (XLV) and consumer staples (XLP) held up relatively well. TQQQ holders likely suffered losses three times the Nasdaq's decline.

Investor Response Through Systematic Rebalancing

Four consecutive weeks of decline should be viewed as a systematic rebalancing opportunity. Using a rebalancing calculator to identify deviations from target allocations and considering increased exposure to beaten-down asset classes is timely. Maintaining dollar-cost averaging into core index ETFs like VOO and QQQ while temporarily increasing bond exposure through AGG ETF provides a balanced defensive approach. Maintaining 10-15% cash reserves enables staged buying during further declines.

Conclusion

While four consecutive weeks of losses may trigger fear, historical data shows such corrections consistently offered long-term investors attractive entry points. Use asset allocation and rebalancing calculators to assess your portfolio objectively and respond systematically. In volatile markets, emotional trading remains the greatest enemy of returns.

Related Portfolios

Conservative Income Portfolio

AGG 20%Low

Defensive Quality Portfolio

AGG 15%Low

All Weather Portfolio

VOO 30%Low-Medium

AI-Optimized Income Portfolio

QQQ 12%TQQQ 3%Medium
#S&P 500 decline#Nasdaq correction#rebalancing calculator#asset allocation calculator#VIX fear index#portfolio adjustment#TQQQ

Related Articles

Market Analysis2026-03-21

Russell 2000 Enters Correction: Small-Cap Strategy Guide

Market Analysis2026-03-21

Bitcoin Holds $70K While Stocks Sell Off

Market Analysis2026-03-20

S&P 500 Hits 2026 Low as Stagflation Fears Spread

Apply with the Rebalancing Calculator

Automatically calculate exactly how much to buy and sell to rebalance your portfolio.

Start Rebalancing Calculator

Have any questions?