Vanguard Mega Cap Growth Index Fund
$90.79
-1.3%
Aug 9, 2026
D
WeakGraded against MGK's own history at this drawdown — not the market's.
What it means: MGK's own history does not strongly favor buying at this level yet.
What to do: Consider watching and waiting for a deeper dip or a higher grade.
The fund employs an indexing investment approach designed to track the performance of the index. The index is a float-adjusted, market-capitalization-weighted index designed to measure equity market performance of mega-capitalization growth stocks in the United States. The Advisor attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the index, holding each stock in approximately the same proportion as its weighting in the index.
Three plain-English paragraphs — current state, historical base rate, and interpretation — so you walk away with context, not a dashboard.
In plain terms: MGK is 1.3% below its highest-ever price. Dipsern checks every past time it was this far down and grades how the next 90 days usually went.
Vanguard Mega Cap Growth ETF (MGK) sits 1.3% off its peak and is currently at or near all-time highs, last printing at $90.79. That puts MGK in a momentum regime: buyers are in control and there's no meaningful technical damage on the chart yet.
MGK reaches this drawdown band repeatedly in its history (2764 observations), which is a large sample for the segmentation engine to compute a stable median forward return. The engine uses a rolling 90-day window and gives more weight to recent years — this lets the signal adapt to regime changes (e.g., post-COVID volatility) without losing the long-run base rate.
For broad-index ETFs the historical base rate is exceptionally stable; for narrow thematic ETFs (e.g., ARKK, cannabis, leveraged), drawdowns are deeper and the sample size at each band is smaller. At this level the Dipsern signal is mostly tracking momentum, not mean reversion. Most buying-the-dip frameworks aren't relevant when there is no dip.
Five tickers closest to MGK's distance from all-time high. Same category, one tap away.
Dipsern segments the full drawdown range into 20 equal-width bands. The table shows the number of confirmed historical observations in each band for MGK. Median forward returns, win rates, and prediction errors are available in the full analysis.
We segment 40+ years of MGK's price history into 20 equal-width drawdown bands and compute forward median returns, win rates, and prediction error per band. No look-ahead bias. Pure NumPy. Open math, gated numbers.
Years of history
40+
Drawdown bands
20
Look-ahead bias
None
Data sources
4
See the Dipsern grade, median returns, win rates, prediction accuracy, 8 interactive charts, historical price paths, and a plain-English verdict for MGK.
Dipsern is research and a second opinion — not a broker. You'd buy MGK at your own broker.
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Signal computed Aug 9, 2026 using default parameters (90-day return period, 20 segments, 0.95 decay). Data sourced from Yahoo Finance, Binance, CoinGecko, and Steam Market.