How much Micron is in VOO?

2.0% of VOO, the S&P 500 fund, from its filing as of 2026-06-30.

Do I already own Micron through my 401(k)?

If your 401(k) holds a target-date or total-market fund, yes: 1.0% of a 2055 target-date fund (VFFVX) is Micron, and 1.8% of VTI.

What was Micron's worst fall?

98% from a high, in its daily prices since 1990.

Folionomiq

How much of your money is Micron?

If 30% of your money is Micron shares and the rest is in VOO, Micron is 31% of your money and carries 61% of its ups and downs.

Micron's daily prices since Jan 1990 and the funds' own SEC filings. What happened, not a forecast.

Measure mine

An illustration in percentages, measured on the same prices. Your own shares, funds and amounts give your own figure.

SEC filings of the funds · Micron's daily prices since Jan 1990 · method →

Measured on 2026-10-20

Micron inside the funds you may also hold

Fund	Micron, share of the fund
VOO · S&P 500	2.0%
QQQ · Nasdaq 100	5.6%
VTI · the whole US market	1.8%
VT · the whole world	0.8%
VFFVX · a 2055 target-date fund	1.0%

From each fund's own filing with the SEC, the latest one read; the target-date fund is read through the funds it holds. A fund that holds Micron adds to what you hold directly.

Micron on its own

Its worst fall since 1990: 98%.

The longest it stayed below an earlier high: 21.5 years, Jul 2000 to Jan 2022.

Crisis	Micron fell	Back to its earlier high
2022, rising rates	−50%	528 days
COVID, 2020	−43%	245 days
Late 2018	−37%	210 days
February 2018	−25%	24 days
China, August 2015	−49%	280 days
US downgrade, 2011	−46%	128 days
Financial crisis, 2008	−84%	410 days
Dot-com crash, 2000–02	−88%	7,029 days
Russia and LTCM, 1998	−35%	58 days
Asian crisis, 1997	−61%	390 days

Peak to trough inside each crisis, on Micron's own daily prices, dividends reinvested.

Questions people ask

How much Micron is in VOO?: 2.0% of VOO, the S&P 500 fund, from its filing as of 2026-06-30.
Do I already own Micron through my 401(k)?: If your 401(k) holds a target-date or total-market fund, yes: 1.0% of a 2055 target-date fund (VFFVX) is Micron, and 1.8% of VTI.
What was Micron's worst fall?: 98% from a high, in its daily prices since 1990.

What this does not say

Every figure is measured on past prices and the funds' latest filings. It is not a forecast.
Your job, your pay and your unvested shares depend on the same company; none of that is in these figures.
Taxes are not computed: what a sale would cost or save depends on your own situation.
This page does not say whether to keep or sell any shares, and it is not advice.

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Measured 1990-01-02 to 2026-10-20 in USD, from Yahoo Finance prices and the funds' own filings. Descriptive: this page reports what these funds hold and what this company did. It does not forecast, it does not say what to do with any shares, and it is not advice. How every figure is measured. Terms and privacy: /terms. If a figure looks wrong: [email protected].