MD
MDY
SPDR S&P Midcap 400 ETF Trust
$678.68
1M -4.6%
3M -1.5%
YTD +11.0%
as of 2026-09-11
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Model view — historical tendencies for the days ahead, not a forecast
Seasonality
No real seasonal tilt
Next 30 days (to Oct 14): +0.3% median,
53% of the last 30 years finished up.
20-year seasonality chart →
Mean reversion
Neutral — RSI(2) at 50
RSI(2) under 15 is oversold (this name has historically bounced); over 85 is overbought.
Its dip-buy edge in history is -0.00%/day.
Mean-reversion stats →
1-month breakdown —
Market · β 0.97 -0.2% · Seasonal tilt -0.2%
$340M/day volume
15% volatility
+14% 1-year
-5% from ATH
52-week range · 74% of the way up · -5% from the high
$568.21$717.35
Data from the U.S. House Clerk and FINRA, plus end-of-day prices. Not investment advice.