What if you invested monthly in a Mega-cap growth ETF (MGK) for 15 years?
This calculates the result of investing a fixed amount monthly into MGK, which concentrates on US mega-cap growth stocks, over 15 years using actual price data. It shows the growth/large-cap style's out- and under-performance alongside maximum drawdown and time underwater.
Investment conditions
Asset · MGK (US Mega-cap growth ETF)
Method · Recurring monthly investment
Period · 2011-07-01 ~ 2026-07-01
Amount · $222 / month
As of · 2026-07-01
Key metrics
These results do not reflect taxes. Based on historical data.
Risk & recovery
As important as returns. This service does not hide maximum drawdown or loss periods.
Maximum drawdown (MDD)
-33.8%
Largest drop from peak
Longest loss period
3months
Months in loss: 3
Recovery period
11months
Growth over time
Invested principal (dashed) and portfolio value (solid). Values below match the calculation.
Total invested $40,222 → Final value $173,961 (+332.5%), Maximum drawdown (MDD) -33.8%
Why this period and asset
The growth style concentrates on companies with fast earnings and revenue growth, while the mega-cap style focuses on the largest firms by market cap. MGK combines both, overweighting US mega-cap growth names. This 15-year window (2011-2026) largely overlaps with the era in which mega-cap growth led the market via smartphones, cloud, and AI, and it also includes the 2020 COVID crash and the 2022 rate-hike selloff in growth. High concentration in a few names made both up and down moves large.
Interpreting the result
Investing the same amount each month buys more shares when prices are low and fewer when they are high. Mega-cap growth can far outpace the broad index when growth leads, but it tends to fall much deeper than the market when rates rise or growth expectations break. Concentration in a few mega-caps means weak diversification and greater exposure to single-stock or sector risk. The key is to read the maximum drawdown, time underwater, and recovery period next to the broad index on the results screen.
Caveats & limits
The growth style can suffer larger drawdowns than the market in rising-rate or slowing-growth periods and is vulnerable to concentration risk. Backtest results shrink once real fees and taxes are included, and expense ratios, trading fees, USD/KRW exchange rates, and taxes also affect the outcome. Past performance does not guarantee future results, and this page does not recommend buying any specific security.
Data sources & limits
- Price data source: Yahoo Finance / FinanceDataReader
- Collected on: 2026-07-23
- Effective trading date: 2026-07-01
- Price basis: 复权收盘价(已反映股息与拆股)
- Trading fees and taxes are not reflected — figures are pre-tax.
- Based on historical data; does not guarantee future returns.
Frequently asked questions
What is style investing?
Instead of holding the whole market, it selects stocks by a characteristic (style) such as growth, value, or size (large/small). Mega-cap growth combines the large-cap and growth styles.
Does mega-cap growth always beat the market?
No. It far outpaces when growth leads, but it falls much deeper than the market in rising-rate or slowing-growth periods. Outcomes diverge sharply by regime.
What are the risks of this strategy?
Weak diversification and high volatility from concentration in a few mega-caps, and deep drawdowns in rising-rate periods, are the main ones. Loss periods and recovery can stretch in a market crash, and fees and FX reduce returns.
Related scenarios
📋 结果基于历史数据计算,过去的收益不代表未来的收益。
📋 本服务旨在帮助理解投资、供教育之用,并非投资建议。